Refactor pool logo component & fallback logic

backend/src/api/acceleration/acceleration.ts

@@ -1,14 +1,15 @@
 import logger from '../../logger';
 import { MempoolTransactionExtended } from '../../mempool.interfaces';
-import { GraphTx, getSameBlockRelatives, initializeRelatives, makeBlockTemplate, mempoolComparator, removeAncestors, setAncestorScores } from '../mini-miner';
+import { IEsploraApi } from '../bitcoin/esplora-api.interface';
 
 const BLOCK_WEIGHT_UNITS = 4_000_000;
+const BLOCK_SIGOPS = 80_000;
 const MAX_RELATIVE_GRAPH_SIZE = 200;
 const BID_BOOST_WINDOW = 40_000;
 const BID_BOOST_MIN_OFFSET = 10_000;
 const BID_BOOST_MAX_OFFSET = 400_000;
 
-export type Acceleration = {
+type Acceleration = {
   txid: string;
   max_bid: number;
 };
@@ -27,6 +28,31 @@ export interface AccelerationInfo {
   cost: number; // additional cost to accelerate ((cost + txSummary.effectiveFee) / txSummary.effectiveVsize) >= targetFeeRate
 }
 
+interface GraphTx {
+  txid: string;
+  vsize: number;
+  weight: number;
+  fees: {
+    base: number; // in sats
+  };
+  depends: string[];
+  spentby: string[];
+}
+
+interface MempoolTx extends GraphTx {
+  ancestorcount: number;
+  ancestorsize: number;
+  fees: { // in sats
+    base: number;
+    ancestor: number;
+  };
+
+  ancestors: Map<string, MempoolTx>,
+  ancestorRate: number;
+  individualRate: number;
+  score: number;
+}
+
 class AccelerationCosts {
   /**
    * Takes a list of accelerations and verbose block data
@@ -35,7 +61,7 @@ class AccelerationCosts {
    * @param accelerationsx
    * @param verboseBlock
    */
-  public calculateBoostRate(accelerations: Acceleration[], blockTxs: MempoolTransactionExtended[]): number {
+  public calculateBoostRate(accelerations: Acceleration[], blockTxs: IEsploraApi.Transaction[]): number {
     // Run GBT ourselves to calculate accurate effective fee rates
     // the list of transactions comes from a mined block, so we already know everything fits within consensus limits
     const template = makeBlockTemplate(blockTxs, accelerations, 1, Infinity, Infinity);
@@ -144,28 +170,108 @@ class AccelerationCosts {
   /**
    * Takes an accelerated mined txid and a target rate
    * Returns the total vsize, fees and acceleration cost (in sats) of the tx and all same-block ancestors
-   *
-   * @param txid
-   * @param medianFeeRate
+   * 
+   * @param txid 
+   * @param medianFeeRate 
    */
   public getAccelerationInfo(tx: MempoolTransactionExtended, targetFeeRate: number, transactions: MempoolTransactionExtended[]): AccelerationInfo {
     // Get same-block transaction ancestors
-    const allRelatives = getSameBlockRelatives(tx, transactions);
-    const relativesMap = initializeRelatives(allRelatives);
-    const rootTx = relativesMap.get(tx.txid) as GraphTx;
+    const allRelatives = this.getSameBlockRelatives(tx, transactions);
+    const relativesMap = this.initializeRelatives(allRelatives);
+    const rootTx = relativesMap.get(tx.txid) as MempoolTx;
 
     // Calculate cost to boost
     return this.calculateAccelerationAncestors(rootTx, relativesMap, targetFeeRate);
   }
 
+  /**
+   * Takes a raw transaction, and builds a graph of same-block relatives,
+   * and returns as a MempoolTx
+   * 
+   * @param tx 
+   */
+  private getSameBlockRelatives(tx: MempoolTransactionExtended, transactions: MempoolTransactionExtended[]): Map<string, GraphTx> {
+    const blockTxs = new Map<string, MempoolTransactionExtended>(); // map of txs in this block
+    const spendMap = new Map<string, string>(); // map of outpoints to spending txids
+    for (const tx of transactions) {
+      blockTxs.set(tx.txid, tx);
+      for (const vin of tx.vin) {
+        spendMap.set(`${vin.txid}:${vin.vout}`, tx.txid);
+      }
+    }
+
+    const relatives: Map<string, GraphTx> = new Map();
+    const stack: string[] = [tx.txid];
+
+    // build set of same-block ancestors
+    while (stack.length > 0) {
+      const nextTxid = stack.pop();
+      const nextTx = nextTxid ? blockTxs.get(nextTxid) : null;
+      if (!nextTx || relatives.has(nextTx.txid)) {
+        continue;
+      }
+
+      const mempoolTx = this.convertToGraphTx(nextTx);
+
+      mempoolTx.fees.base = nextTx.fee || 0;
+      mempoolTx.depends = nextTx.vin.map(vin => vin.txid).filter(inTxid => inTxid && blockTxs.has(inTxid)) as string[];
+      mempoolTx.spentby = nextTx.vout.map((vout, index) => spendMap.get(`${nextTx.txid}:${index}`)).filter(outTxid => outTxid && blockTxs.has(outTxid)) as string[];
+
+      for (const txid of [...mempoolTx.depends, ...mempoolTx.spentby]) {
+        if (txid) {
+          stack.push(txid);
+        }
+      }
+
+      relatives.set(mempoolTx.txid, mempoolTx);
+    }
+
+    return relatives;
+  }
+
+  /**
+   * Takes a raw transaction and converts it to MempoolTx format
+   * fee and ancestor data is initialized with dummy/null values
+   * 
+   * @param tx 
+   */
+  private convertToGraphTx(tx: MempoolTransactionExtended): GraphTx {
+    return {
+      txid: tx.txid,
+      vsize: Math.ceil(tx.weight / 4),
+      weight: tx.weight,
+      fees: {
+        base: 0, // dummy
+      },
+      depends: [], // dummy
+      spentby: [], //dummy
+    };
+  }
+
+  private convertGraphToMempoolTx(tx: GraphTx): MempoolTx {
+    return {
+      ...tx,
+      fees: {
+        base: tx.fees.base,
+        ancestor: tx.fees.base,
+      },
+      ancestorcount: 1,
+      ancestorsize: Math.ceil(tx.weight / 4),
+      ancestors: new Map<string, MempoolTx>(),
+      ancestorRate: 0,
+      individualRate: 0,
+      score: 0,
+    };
+  }
+
   /**
    * Given a root transaction, a list of in-mempool ancestors, and a target fee rate,
    * Calculate the minimum set of transactions to fee-bump, their total vsize + fees
-   *
+   * 
    * @param tx
    * @param ancestors
    */
-  private calculateAccelerationAncestors(tx: GraphTx, relatives: Map<string, GraphTx>, targetFeeRate: number): AccelerationInfo {
+  private calculateAccelerationAncestors(tx: MempoolTx, relatives: Map<string, MempoolTx>, targetFeeRate: number): AccelerationInfo {
     // add root tx to the ancestor map
     relatives.set(tx.txid, tx);
 
@@ -177,12 +283,12 @@ class AccelerationCosts {
     });
 
     // Initialize individual & ancestor fee rates
-    relatives.forEach(entry => setAncestorScores(entry));
+    relatives.forEach(entry => this.setAncestorScores(entry));
 
     // Sort by descending ancestor score
-    let sortedRelatives = Array.from(relatives.values()).sort(mempoolComparator);
+    let sortedRelatives = Array.from(relatives.values()).sort(this.mempoolComparator);
 
-    let includedInCluster: Map<string, GraphTx> | null = null;
+    let includedInCluster: Map<string, MempoolTx> | null = null;
 
     // While highest score >= targetFeeRate
     let maxIterations = MAX_RELATIVE_GRAPH_SIZE;
@@ -191,17 +297,17 @@ class AccelerationCosts {
       // Grab the highest scoring entry
       const best = sortedRelatives.shift();
       if (best) {
-        const cluster = new Map<string, GraphTx>(best.ancestors?.entries() || []);
+        const cluster = new Map<string, MempoolTx>(best.ancestors?.entries() || []);
         if (best.ancestors.has(tx.txid)) {
           includedInCluster = cluster;
         }
         cluster.set(best.txid, best);
         // Remove this cluster (it already pays over the target rate, so doesn't need to be boosted)
         // and update scores, ancestor totals and dependencies for the survivors
-        removeAncestors(cluster, relatives);
+        this.removeAncestors(cluster, relatives);
 
         // re-sort
-        sortedRelatives = Array.from(relatives.values()).sort(mempoolComparator);
+        sortedRelatives = Array.from(relatives.values()).sort(this.mempoolComparator);
       }
     }
 
@@ -239,6 +345,394 @@ class AccelerationCosts {
       nextBlockFee: Math.ceil(tx.ancestorsize * targetFeeRate),
     };
   }
+
+  /**
+   * Recursively traverses an in-mempool dependency graph, and sets a Map of in-mempool ancestors
+   * for each transaction.
+   * 
+   * @param tx 
+   * @param all 
+   */
+  private setAncestors(tx: MempoolTx, all: Map<string, MempoolTx>, visited: Map<string, Map<string, MempoolTx>>, depth: number = 0): Map<string, MempoolTx> {
+    // sanity check for infinite recursion / too many ancestors (should never happen)
+    if (depth >= 100) {
+      logger.warn('acceleration dependency calculation failed: setAncestors reached depth of 100, unable to proceed', `Accelerator`);
+      throw new Error('invalid_tx_dependencies');
+    }
+    
+    // initialize the ancestor map for this tx
+    tx.ancestors = new Map<string, MempoolTx>();
+    tx.depends.forEach(parentId => {
+      const parent = all.get(parentId);
+      if (parent) {
+        // add the parent
+        tx.ancestors?.set(parentId, parent);
+        // check for a cached copy of this parent's ancestors
+        let ancestors = visited.get(parent.txid);
+        if (!ancestors) {
+          // recursively fetch the parent's ancestors
+          ancestors = this.setAncestors(parent, all, visited, depth + 1);
+        }
+        // and add to this tx's map
+        ancestors.forEach((ancestor, ancestorId) => {
+          tx.ancestors?.set(ancestorId, ancestor);
+        });
+      }
+    });
+    visited.set(tx.txid, tx.ancestors);
+
+    return tx.ancestors;
+  }
+
+  /**
+   * Efficiently sets a Map of in-mempool ancestors for each member of an expanded relative graph
+   * by running setAncestors on each leaf, and caching intermediate results.
+   * then initializes ancestor data for each transaction
+   * 
+   * @param all 
+   */
+  private initializeRelatives(all: Map<string, GraphTx>): Map<string, MempoolTx> {
+    const mempoolTxs = new Map<string, MempoolTx>();
+    all.forEach(entry => {
+      mempoolTxs.set(entry.txid, this.convertGraphToMempoolTx(entry));
+    });
+    const visited: Map<string, Map<string, MempoolTx>> = new Map();
+    const leaves: MempoolTx[] = Array.from(mempoolTxs.values()).filter(entry => entry.spentby.length === 0);
+    for (const leaf of leaves) {
+      this.setAncestors(leaf, mempoolTxs, visited);
+    }
+    mempoolTxs.forEach(entry => {
+      entry.ancestors?.forEach(ancestor => {
+        entry.ancestorcount++;
+        entry.ancestorsize += ancestor.vsize;
+        entry.fees.ancestor += ancestor.fees.base;
+      });
+      this.setAncestorScores(entry);
+    });
+    return mempoolTxs;
+  }
+
+  /**
+   * Remove a cluster of transactions from an in-mempool dependency graph
+   * and update the survivors' scores and ancestors
+   * 
+   * @param cluster 
+   * @param ancestors 
+   */
+  private removeAncestors(cluster: Map<string, MempoolTx>, all: Map<string, MempoolTx>): void {
+    // remove
+    cluster.forEach(tx => {
+      all.delete(tx.txid);
+    });
+
+    // update survivors
+    all.forEach(tx => {
+      cluster.forEach(remove => {
+        if (tx.ancestors?.has(remove.txid)) {
+          // remove as dependency
+          tx.ancestors.delete(remove.txid);
+          tx.depends = tx.depends.filter(parent => parent !== remove.txid);
+          // update ancestor sizes and fees
+          tx.ancestorsize -= remove.vsize;
+          tx.fees.ancestor -= remove.fees.base;
+        }
+      });
+      // recalculate fee rates
+      this.setAncestorScores(tx);
+    });
+  }
+
+  /**
+   * Take a mempool transaction, and set the fee rates and ancestor score
+   * 
+   * @param tx 
+   */
+  private setAncestorScores(tx: MempoolTx): void {
+    tx.individualRate = tx.fees.base / tx.vsize;
+    tx.ancestorRate = tx.fees.ancestor / tx.ancestorsize;
+    tx.score = Math.min(tx.individualRate, tx.ancestorRate);
+  }
+
+  // Sort by descending score
+  private mempoolComparator(a, b): number {
+    return b.score - a.score;
+  }
 }
 
-export default new AccelerationCosts;
+export default new AccelerationCosts;
+
+interface TemplateTransaction {
+  txid: string;
+  order: number;
+  weight: number;
+  adjustedVsize: number; // sigop-adjusted vsize, rounded up to the nearest integer
+  sigops: number;
+  fee: number;
+  feeDelta: number;
+  ancestors: string[];
+  cluster: string[];
+  effectiveFeePerVsize: number;
+}
+
+interface MinerTransaction extends TemplateTransaction {
+  inputs: string[];
+  feePerVsize: number;
+  relativesSet: boolean;
+  ancestorMap: Map<string, MinerTransaction>;
+  children: Set<MinerTransaction>;
+  ancestorFee: number;
+  ancestorVsize: number;
+  ancestorSigops: number;
+  score: number;
+  used: boolean;
+  modified: boolean;
+  dependencyRate: number;
+}
+
+/*
+* Build a block using an approximation of the transaction selection algorithm from Bitcoin Core
+* (see BlockAssembler in https://github.com/bitcoin/bitcoin/blob/master/src/node/miner.cpp)
+*/
+export function makeBlockTemplate(candidates: IEsploraApi.Transaction[], accelerations: Acceleration[], maxBlocks: number = 8, weightLimit: number = BLOCK_WEIGHT_UNITS, sigopLimit: number = BLOCK_SIGOPS): TemplateTransaction[] {
+  const auditPool: Map<string, MinerTransaction> = new Map();
+  const mempoolArray: MinerTransaction[] = [];
+  
+  candidates.forEach(tx => {
+    // initializing everything up front helps V8 optimize property access later
+    const adjustedVsize = Math.ceil(Math.max(tx.weight / 4, 5 * (tx.sigops || 0)));
+    const feePerVsize = (tx.fee / adjustedVsize);
+    auditPool.set(tx.txid, {
+      txid: tx.txid,
+      order: txidToOrdering(tx.txid),
+      fee: tx.fee,
+      feeDelta: 0,
+      weight: tx.weight,
+      adjustedVsize,
+      feePerVsize: feePerVsize,
+      effectiveFeePerVsize: feePerVsize,
+      dependencyRate: feePerVsize,
+      sigops: tx.sigops || 0,
+      inputs: (tx.vin?.map(vin => vin.txid) || []) as string[],
+      relativesSet: false,
+      ancestors: [],
+      cluster: [],
+      ancestorMap: new Map<string, MinerTransaction>(),
+      children: new Set<MinerTransaction>(),
+      ancestorFee: 0,
+      ancestorVsize: 0,
+      ancestorSigops: 0,
+      score: 0,
+      used: false,
+      modified: false,
+    });
+    mempoolArray.push(auditPool.get(tx.txid) as MinerTransaction);
+  });
+
+  // set accelerated effective fee
+  for (const acceleration of accelerations) {
+    const tx = auditPool.get(acceleration.txid);
+    if (tx) {
+      tx.feeDelta = acceleration.max_bid;
+      tx.feePerVsize = ((tx.fee + tx.feeDelta) / tx.adjustedVsize);
+      tx.effectiveFeePerVsize = tx.feePerVsize;
+      tx.dependencyRate = tx.feePerVsize;
+    }
+  }
+
+  // Build relatives graph & calculate ancestor scores
+  for (const tx of mempoolArray) {
+    if (!tx.relativesSet) {
+      setRelatives(tx, auditPool);
+    }
+  }
+
+  // Sort by descending ancestor score
+  mempoolArray.sort(priorityComparator);
+
+  // Build blocks by greedily choosing the highest feerate package
+  // (i.e. the package rooted in the transaction with the best ancestor score)
+  const blocks: number[][] = [];
+  let blockWeight = 0;
+  let blockSigops = 0;
+  const transactions: MinerTransaction[] = [];
+  let modified: MinerTransaction[] = [];
+  const overflow: MinerTransaction[] = [];
+  let failures = 0;
+  while (mempoolArray.length || modified.length) {
+    // skip invalid transactions
+    while (mempoolArray[0].used || mempoolArray[0].modified) {
+      mempoolArray.shift();
+    }
+
+    // Select best next package
+    let nextTx;
+    const nextPoolTx = mempoolArray[0];
+    const nextModifiedTx = modified[0];
+    if (nextPoolTx && (!nextModifiedTx || (nextPoolTx.score || 0) > (nextModifiedTx.score || 0))) {
+      nextTx = nextPoolTx;
+      mempoolArray.shift();
+    } else {
+      modified.shift();
+      if (nextModifiedTx) {
+        nextTx = nextModifiedTx;
+      }
+    }
+
+    if (nextTx && !nextTx?.used) {
+      // Check if the package fits into this block
+      if (blocks.length >= (maxBlocks - 1) || ((blockWeight + (4 * nextTx.ancestorVsize) < weightLimit) && (blockSigops + nextTx.ancestorSigops <= sigopLimit))) {
+        const ancestors: MinerTransaction[] = Array.from(nextTx.ancestorMap.values());
+        // sort ancestors by dependency graph (equivalent to sorting by ascending ancestor count)
+        const sortedTxSet = [...ancestors.sort((a, b) => { return (a.ancestorMap.size || 0) - (b.ancestorMap.size || 0); }), nextTx];
+        const clusterTxids = sortedTxSet.map(tx => tx.txid);
+        const effectiveFeeRate = Math.min(nextTx.dependencyRate || Infinity, nextTx.ancestorFee / nextTx.ancestorVsize);
+        const used: MinerTransaction[] = [];
+        while (sortedTxSet.length) {
+          const ancestor = sortedTxSet.pop();
+          if (!ancestor) {
+            continue;
+          }
+          ancestor.used = true;
+          ancestor.usedBy = nextTx.txid;
+          // update this tx with effective fee rate & relatives data
+          if (ancestor.effectiveFeePerVsize !== effectiveFeeRate) {
+            ancestor.effectiveFeePerVsize = effectiveFeeRate;
+          }
+          ancestor.cluster = clusterTxids;
+          transactions.push(ancestor);
+          blockWeight += ancestor.weight;
+          blockSigops += ancestor.sigops;
+          used.push(ancestor);
+        }
+
+        // remove these as valid package ancestors for any descendants remaining in the mempool
+        if (used.length) {
+          used.forEach(tx => {
+            modified = updateDescendants(tx, auditPool, modified, effectiveFeeRate);
+          });
+        }
+
+        failures = 0;
+      } else {
+        // hold this package in an overflow list while we check for smaller options
+        overflow.push(nextTx);
+        failures++;
+      }
+    }
+
+    // this block is full
+    const exceededPackageTries = failures > 1000 && blockWeight > (weightLimit - 4000);
+    const queueEmpty = !mempoolArray.length && !modified.length;
+
+    if (exceededPackageTries || queueEmpty) {
+      break;
+    }
+  }
+
+  for (const tx of transactions) {
+    tx.ancestors = Object.values(tx.ancestorMap);
+  }
+
+  return transactions;
+}
+
+// traverse in-mempool ancestors
+// recursion unavoidable, but should be limited to depth < 25 by mempool policy
+function setRelatives(
+  tx: MinerTransaction,
+  mempool: Map<string, MinerTransaction>,
+): void {
+  for (const parent of tx.inputs) {
+    const parentTx = mempool.get(parent);
+    if (parentTx && !tx.ancestorMap?.has(parent)) {
+      tx.ancestorMap.set(parent, parentTx);
+      parentTx.children.add(tx);
+      // visit each node only once
+      if (!parentTx.relativesSet) {
+        setRelatives(parentTx, mempool);
+      }
+      parentTx.ancestorMap.forEach((ancestor) => {
+        tx.ancestorMap.set(ancestor.txid, ancestor);
+      });
+    }
+  };
+  tx.ancestorFee = (tx.fee + tx.feeDelta);
+  tx.ancestorVsize = tx.adjustedVsize || 0;
+  tx.ancestorSigops = tx.sigops || 0;
+  tx.ancestorMap.forEach((ancestor) => {
+    tx.ancestorFee += (ancestor.fee + ancestor.feeDelta);
+    tx.ancestorVsize += ancestor.adjustedVsize;
+    tx.ancestorSigops += ancestor.sigops;
+  });
+  tx.score = tx.ancestorFee / tx.ancestorVsize;
+  tx.relativesSet = true;
+}
+
+// iterate over remaining descendants, removing the root as a valid ancestor & updating the ancestor score
+// avoids recursion to limit call stack depth
+function updateDescendants(
+  rootTx: MinerTransaction,
+  mempool: Map<string, MinerTransaction>,
+  modified: MinerTransaction[],
+  clusterRate: number,
+): MinerTransaction[] {
+  const descendantSet: Set<MinerTransaction> = new Set();
+  // stack of nodes left to visit
+  const descendants: MinerTransaction[] = [];
+  let descendantTx: MinerTransaction | undefined;
+  rootTx.children.forEach(childTx => {
+    if (!descendantSet.has(childTx)) {
+      descendants.push(childTx);
+      descendantSet.add(childTx);
+    }
+  });
+  while (descendants.length) {
+    descendantTx = descendants.pop();
+    if (descendantTx && descendantTx.ancestorMap && descendantTx.ancestorMap.has(rootTx.txid)) {
+      // remove tx as ancestor
+      descendantTx.ancestorMap.delete(rootTx.txid);
+      descendantTx.ancestorFee -= (rootTx.fee + rootTx.feeDelta);
+      descendantTx.ancestorVsize -= rootTx.adjustedVsize;
+      descendantTx.ancestorSigops -= rootTx.sigops;
+      descendantTx.score = descendantTx.ancestorFee / descendantTx.ancestorVsize;
+      descendantTx.dependencyRate = descendantTx.dependencyRate ? Math.min(descendantTx.dependencyRate, clusterRate) : clusterRate;
+
+      if (!descendantTx.modified) {
+        descendantTx.modified = true;
+        modified.push(descendantTx);
+      }
+
+      // add this node's children to the stack
+      descendantTx.children.forEach(childTx => {
+        // visit each node only once
+        if (!descendantSet.has(childTx)) {
+          descendants.push(childTx);
+          descendantSet.add(childTx);
+        }
+      });
+    }
+  }
+  // return new, resorted modified list
+  return modified.sort(priorityComparator);
+}
+
+// Used to sort an array of MinerTransactions by descending ancestor score
+function priorityComparator(a: MinerTransaction, b: MinerTransaction): number {
+  if (b.score === a.score) {
+    // tie-break by txid for stability
+    return a.order - b.order;
+  } else {
+    return b.score - a.score;
+  }
+}
+
+// returns the most significant 4 bytes of the txid as an integer
+function txidToOrdering(txid: string): number {
+  return parseInt(
+    txid.substring(62, 64) +
+      txid.substring(60, 62) +
+      txid.substring(58, 60) +
+      txid.substring(56, 58),
+    16
+  );
+}

backend/src/api/bitcoin/bitcoin.routes.ts

@@ -19,7 +19,7 @@ import bitcoinClient from './bitcoin-client';
 import difficultyAdjustment from '../difficulty-adjustment';
 import transactionRepository from '../../repositories/TransactionRepository';
 import rbfCache from '../rbf-cache';
-import { calculateMempoolTxCpfp } from '../cpfp';
+import { calculateCpfp } from '../cpfp';
 
 class BitcoinRoutes {
   public initRoutes(app: Application) {
@@ -42,7 +42,6 @@ class BitcoinRoutes {
       .get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash', this.getBlock)
       .get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/summary', this.getStrippedBlockTransactions)
       .get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/audit-summary', this.getBlockAuditSummary)
-      .get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/tx/:txid/audit', this.$getBlockTxAuditSummary)
       .get(config.MEMPOOL.API_URL_PREFIX + 'blocks/tip/height', this.getBlockTipHeight)
       .post(config.MEMPOOL.API_URL_PREFIX + 'psbt/addparents', this.postPsbtCompletion)
       .get(config.MEMPOOL.API_URL_PREFIX + 'blocks-bulk/:from', this.getBlocksByBulk.bind(this))
@@ -160,7 +159,6 @@ class BitcoinRoutes {
           descendants: tx.descendants || null,
           effectiveFeePerVsize: tx.effectiveFeePerVsize || null,
           sigops: tx.sigops,
-          fee: tx.fee,
           adjustedVsize: tx.adjustedVsize,
           acceleration: tx.acceleration,
           acceleratedBy: tx.acceleratedBy || undefined,
@@ -169,7 +167,7 @@ class BitcoinRoutes {
         return;
       }
 
-      const cpfpInfo = calculateMempoolTxCpfp(tx, mempool.getMempool());
+      const cpfpInfo = calculateCpfp(tx, mempool.getMempool());
 
       res.json(cpfpInfo);
       return;
@@ -363,20 +361,6 @@ class BitcoinRoutes {
     }
   }
 
-  private async $getBlockTxAuditSummary(req: Request, res: Response) {
-    try {
-      const auditSummary = await blocks.$getBlockTxAuditSummary(req.params.hash, req.params.txid);
-      if (auditSummary) {
-        res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24 * 30).toUTCString());
-        res.json(auditSummary);
-      } else {
-        return res.status(404).send(`transaction audit not available`);
-      }
-    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
-    }
-  }
-
   private async getBlocks(req: Request, res: Response) {
     try {
       if (['mainnet', 'testnet', 'signet'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin

backend/src/api/blocks.ts

@@ -2,7 +2,7 @@ import config from '../config';
 import bitcoinApi, { bitcoinCoreApi } from './bitcoin/bitcoin-api-factory';
 import logger from '../logger';
 import memPool from './mempool';
-import { BlockExtended, BlockExtension, BlockSummary, PoolTag, TransactionExtended, TransactionMinerInfo, CpfpSummary, MempoolTransactionExtended, TransactionClassified, BlockAudit, TransactionAudit } from '../mempool.interfaces';
+import { BlockExtended, BlockExtension, BlockSummary, PoolTag, TransactionExtended, TransactionMinerInfo, CpfpSummary, MempoolTransactionExtended, TransactionClassified, BlockAudit } from '../mempool.interfaces';
 import { Common } from './common';
 import diskCache from './disk-cache';
 import transactionUtils from './transaction-utils';
@@ -30,9 +30,6 @@ import redisCache from './redis-cache';
 import rbfCache from './rbf-cache';
 import { calcBitsDifference } from './difficulty-adjustment';
 import AccelerationRepository from '../repositories/AccelerationRepository';
-import { calculateFastBlockCpfp, calculateGoodBlockCpfp } from './cpfp';
-import mempool from './mempool';
-import CpfpRepository from '../repositories/CpfpRepository';
 
 class Blocks {
   private blocks: BlockExtended[] = [];
@@ -570,11 +567,8 @@ class Blocks {
     const blockchainInfo = await bitcoinClient.getBlockchainInfo();
     const currentBlockHeight = blockchainInfo.blocks;
 
-    const targetSummaryVersion: number = 1;
-    const targetTemplateVersion: number = 1;
-
-    const unclassifiedBlocksList = await BlocksSummariesRepository.$getSummariesBelowVersion(targetSummaryVersion);
-    const unclassifiedTemplatesList = await BlocksSummariesRepository.$getTemplatesBelowVersion(targetTemplateVersion);
+    const unclassifiedBlocksList = await BlocksSummariesRepository.$getSummariesWithVersion(0);
+    const unclassifiedTemplatesList = await BlocksSummariesRepository.$getTemplatesWithVersion(0);
 
     // nothing to do
     if (!unclassifiedBlocksList?.length && !unclassifiedTemplatesList?.length) {
@@ -607,24 +601,16 @@ class Blocks {
 
     for (let height = currentBlockHeight; height >= 0; height--) {
       try {
-        let txs: MempoolTransactionExtended[] | null = null;
+        let txs: TransactionExtended[] | null = null;
         if (unclassifiedBlocks[height]) {
           const blockHash = unclassifiedBlocks[height];
           // fetch transactions
-          txs = (await bitcoinApi.$getTxsForBlock(blockHash)).map(tx => transactionUtils.extendMempoolTransaction(tx)) || [];
+          txs = (await bitcoinApi.$getTxsForBlock(blockHash)).map(tx => transactionUtils.extendTransaction(tx)) || [];
           // add CPFP
-          const cpfpSummary = calculateGoodBlockCpfp(height, txs, []);
+          const cpfpSummary = Common.calculateCpfp(height, txs, true);
           // classify
           const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, cpfpSummary.transactions);
-          await BlocksSummariesRepository.$saveTransactions(height, blockHash, classifiedTxs, 2);
-          if (unclassifiedBlocks[height].version < 2 && targetSummaryVersion === 2) {
-            const cpfpClusters = await CpfpRepository.$getClustersAt(height);
-            if (!cpfpRepository.compareClusters(cpfpClusters, cpfpSummary.clusters)) {
-              // CPFP clusters changed - update the compact_cpfp tables
-              await CpfpRepository.$deleteClustersAt(height);
-              await this.$saveCpfp(blockHash, height, cpfpSummary);
-            }
-          }
+          await BlocksSummariesRepository.$saveTransactions(height, blockHash, classifiedTxs, 1);
           await Common.sleep$(250);
         }
         if (unclassifiedTemplates[height]) {
@@ -650,7 +636,7 @@ class Blocks {
               }
               templateTxs.push(tx || templateTx);
             }
-            const cpfpSummary = calculateGoodBlockCpfp(height, templateTxs?.filter(tx => tx['effectiveFeePerVsize'] != null) as MempoolTransactionExtended[], []);
+            const cpfpSummary = Common.calculateCpfp(height, templateTxs?.filter(tx => tx['effectiveFeePerVsize'] != null) as TransactionExtended[], true);
             // classify
             const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, cpfpSummary.transactions);
             const classifiedTxMap: { [txid: string]: TransactionClassified } = {};
@@ -904,7 +890,7 @@ class Blocks {
         }
       }
 
-      const cpfpSummary: CpfpSummary = calculateGoodBlockCpfp(block.height, transactions, Object.values(mempool.getAccelerations()).map(a => ({ txid: a.txid, max_bid: a.feeDelta })));
+      const cpfpSummary: CpfpSummary = Common.calculateCpfp(block.height, transactions);
       const blockExtended: BlockExtended = await this.$getBlockExtended(block, cpfpSummary.transactions);
       const blockSummary: BlockSummary = this.summarizeBlockTransactions(block.id, cpfpSummary.transactions);
       this.updateTimerProgress(timer, `got block data for ${this.currentBlockHeight}`);
@@ -1163,7 +1149,7 @@ class Blocks {
         transactions: cpfpSummary.transactions.map(tx => {
           let flags: number = 0;
           try {
-            flags = Common.getTransactionFlags(tx);
+            flags = tx.flags || Common.getTransactionFlags(tx);
           } catch (e) {
             logger.warn('Failed to classify transaction: ' + (e instanceof Error ? e.message : e));
           }
@@ -1373,14 +1359,6 @@ class Blocks {
     }
   }
 
-  public async $getBlockTxAuditSummary(hash: string, txid: string): Promise<TransactionAudit | null> {
-    if (['mainnet', 'testnet', 'signet'].includes(config.MEMPOOL.NETWORK)) {
-      return BlocksAuditsRepository.$getBlockTxAudit(hash, txid);
-    } else {
-      return null;
-    }
-  }
-
   public getLastDifficultyAdjustmentTime(): number {
     return this.lastDifficultyAdjustmentTime;
   }
@@ -1413,7 +1391,7 @@ class Blocks {
     }
 
     if (transactions?.length != null) {
-      const summary = calculateFastBlockCpfp(height, transactions as TransactionExtended[]);
+      const summary = Common.calculateCpfp(height, transactions as TransactionExtended[]);
 
       await this.$saveCpfp(hash, height, summary);
 

backend/src/api/common.ts

@@ -419,15 +419,12 @@ export class Common {
     let flags = tx.flags ? BigInt(tx.flags) : 0n;
 
     // Update variable flags (CPFP, RBF)
-    flags &= ~TransactionFlags.cpfp_child;
     if (tx.ancestors?.length) {
       flags |= TransactionFlags.cpfp_child;
     }
-    flags &= ~TransactionFlags.cpfp_parent;
     if (tx.descendants?.length) {
       flags |= TransactionFlags.cpfp_parent;
     }
-    flags &= ~TransactionFlags.replacement;
     if (tx.replacement) {
       flags |= TransactionFlags.replacement;
     }
@@ -809,6 +806,96 @@ export class Common {
     }
   }
 
+  static calculateCpfp(height: number, transactions: TransactionExtended[], saveRelatives: boolean = false): CpfpSummary {
+    const clusters: CpfpCluster[] = []; // list of all cpfp clusters in this block
+    const clusterMap: { [txid: string]: CpfpCluster } = {}; // map transactions to their cpfp cluster
+    let clusterTxs: TransactionExtended[] = []; // working list of elements of the current cluster
+    let ancestors: { [txid: string]: boolean } = {}; // working set of ancestors of the current cluster root
+    const txMap: { [txid: string]: TransactionExtended } = {};
+    // initialize the txMap
+    for (const tx of transactions) {
+      txMap[tx.txid] = tx;
+    }
+    // reverse pass to identify CPFP clusters
+    for (let i = transactions.length - 1; i >= 0; i--) {
+      const tx = transactions[i];
+      if (!ancestors[tx.txid]) {
+        let totalFee = 0;
+        let totalVSize = 0;
+        clusterTxs.forEach(tx => {
+          totalFee += tx?.fee || 0;
+          totalVSize += (tx.weight / 4);
+        });
+        const effectiveFeePerVsize = totalFee / totalVSize;
+        let cluster: CpfpCluster;
+        if (clusterTxs.length > 1) {
+          cluster = {
+            root: clusterTxs[0].txid,
+            height,
+            txs: clusterTxs.map(tx => { return { txid: tx.txid, weight: tx.weight, fee: tx.fee || 0 }; }),
+            effectiveFeePerVsize,
+          };
+          clusters.push(cluster);
+        }
+        clusterTxs.forEach(tx => {
+          txMap[tx.txid].effectiveFeePerVsize = effectiveFeePerVsize;
+          if (cluster) {
+            clusterMap[tx.txid] = cluster;
+          }
+        });
+        // reset working vars
+        clusterTxs = [];
+        ancestors = {};
+      }
+      clusterTxs.push(tx);
+      tx.vin.forEach(vin => {
+        ancestors[vin.txid] = true;
+      });
+    }
+    // forward pass to enforce ancestor rate caps
+    for (const tx of transactions) {
+      let minAncestorRate = tx.effectiveFeePerVsize;
+      for (const vin of tx.vin) {
+        if (txMap[vin.txid]?.effectiveFeePerVsize) {
+          minAncestorRate = Math.min(minAncestorRate, txMap[vin.txid].effectiveFeePerVsize);
+        }
+      }
+      // check rounded values to skip cases with almost identical fees
+      const roundedMinAncestorRate = Math.ceil(minAncestorRate);
+      const roundedEffectiveFeeRate = Math.floor(tx.effectiveFeePerVsize);
+      if (roundedMinAncestorRate < roundedEffectiveFeeRate) {
+        tx.effectiveFeePerVsize = minAncestorRate;
+        if (!clusterMap[tx.txid]) {
+          // add a single-tx cluster to record the dependent rate
+          const cluster = {
+            root: tx.txid,
+            height,
+            txs: [{ txid: tx.txid, weight: tx.weight, fee: tx.fee || 0 }],
+            effectiveFeePerVsize: minAncestorRate,
+          };
+          clusterMap[tx.txid] = cluster;
+          clusters.push(cluster);
+        } else {
+          // update the existing cluster with the dependent rate
+          clusterMap[tx.txid].effectiveFeePerVsize = minAncestorRate;
+        }
+      }
+    }
+    if (saveRelatives) {
+      for (const cluster of clusters) {
+        cluster.txs.forEach((member, index) => {
+          txMap[member.txid].descendants = cluster.txs.slice(0, index).reverse();
+          txMap[member.txid].ancestors = cluster.txs.slice(index + 1).reverse();
+          txMap[member.txid].effectiveFeePerVsize = cluster.effectiveFeePerVsize;
+        });
+      }
+    }
+    return {
+      transactions,
+      clusters,
+    };
+  }
+
   static calcEffectiveFeeStatistics(transactions: { weight: number, fee: number, effectiveFeePerVsize?: number, txid: string, acceleration?: boolean }[]): EffectiveFeeStats {
     const sortedTxs = transactions.map(tx => { return { txid: tx.txid, weight: tx.weight, rate: tx.effectiveFeePerVsize || ((tx.fee || 0) / (tx.weight / 4)) }; }).sort((a, b) => a.rate - b.rate);
 

backend/src/api/cpfp.ts

@@ -1,172 +1,29 @@
-import { Ancestor, CpfpCluster, CpfpInfo, CpfpSummary, MempoolTransactionExtended, TransactionExtended } from '../mempool.interfaces';
-import { GraphTx, convertToGraphTx, expandRelativesGraph, initializeRelatives, makeBlockTemplate, mempoolComparator, removeAncestors, setAncestorScores } from './mini-miner';
+import { CpfpInfo, MempoolTransactionExtended } from '../mempool.interfaces';
 import memPool from './mempool';
-import { Acceleration } from './acceleration/acceleration';
 
 const CPFP_UPDATE_INTERVAL = 60_000; // update CPFP info at most once per 60s per transaction
-const MAX_CLUSTER_ITERATIONS = 100;
+const MAX_GRAPH_SIZE = 50; // the maximum number of in-mempool relatives to consider
 
-export function calculateFastBlockCpfp(height: number, transactions: TransactionExtended[], saveRelatives: boolean = false): CpfpSummary {
-  const clusters: CpfpCluster[] = []; // list of all cpfp clusters in this block
-  const clusterMap: { [txid: string]: CpfpCluster } = {}; // map transactions to their cpfp cluster
-  let clusterTxs: TransactionExtended[] = []; // working list of elements of the current cluster
-  let ancestors: { [txid: string]: boolean } = {}; // working set of ancestors of the current cluster root
-  const txMap: { [txid: string]: TransactionExtended } = {};
-  // initialize the txMap
-  for (const tx of transactions) {
-    txMap[tx.txid] = tx;
-  }
-  // reverse pass to identify CPFP clusters
-  for (let i = transactions.length - 1; i >= 0; i--) {
-    const tx = transactions[i];
-    if (!ancestors[tx.txid]) {
-      let totalFee = 0;
-      let totalVSize = 0;
-      clusterTxs.forEach(tx => {
-        totalFee += tx?.fee || 0;
-        totalVSize += (tx.weight / 4);
-      });
-      const effectiveFeePerVsize = totalFee / totalVSize;
-      let cluster: CpfpCluster;
-      if (clusterTxs.length > 1) {
-        cluster = {
-          root: clusterTxs[0].txid,
-          height,
-          txs: clusterTxs.map(tx => { return { txid: tx.txid, weight: tx.weight, fee: tx.fee || 0 }; }),
-          effectiveFeePerVsize,
-        };
-        clusters.push(cluster);
-      }
-      clusterTxs.forEach(tx => {
-        txMap[tx.txid].effectiveFeePerVsize = effectiveFeePerVsize;
-        if (cluster) {
-          clusterMap[tx.txid] = cluster;
-        }
-      });
-      // reset working vars
-      clusterTxs = [];
-      ancestors = {};
-    }
-    clusterTxs.push(tx);
-    tx.vin.forEach(vin => {
-      ancestors[vin.txid] = true;
-    });
-  }
-  // forward pass to enforce ancestor rate caps
-  for (const tx of transactions) {
-    let minAncestorRate = tx.effectiveFeePerVsize;
-    for (const vin of tx.vin) {
-      if (txMap[vin.txid]?.effectiveFeePerVsize) {
-        minAncestorRate = Math.min(minAncestorRate, txMap[vin.txid].effectiveFeePerVsize);
-      }
-    }
-    // check rounded values to skip cases with almost identical fees
-    const roundedMinAncestorRate = Math.ceil(minAncestorRate);
-    const roundedEffectiveFeeRate = Math.floor(tx.effectiveFeePerVsize);
-    if (roundedMinAncestorRate < roundedEffectiveFeeRate) {
-      tx.effectiveFeePerVsize = minAncestorRate;
-      if (!clusterMap[tx.txid]) {
-        // add a single-tx cluster to record the dependent rate
-        const cluster = {
-          root: tx.txid,
-          height,
-          txs: [{ txid: tx.txid, weight: tx.weight, fee: tx.fee || 0 }],
-          effectiveFeePerVsize: minAncestorRate,
-        };
-        clusterMap[tx.txid] = cluster;
-        clusters.push(cluster);
-      } else {
-        // update the existing cluster with the dependent rate
-        clusterMap[tx.txid].effectiveFeePerVsize = minAncestorRate;
-      }
-    }
-  }
-  if (saveRelatives) {
-    for (const cluster of clusters) {
-      cluster.txs.forEach((member, index) => {
-        txMap[member.txid].descendants = cluster.txs.slice(0, index).reverse();
-        txMap[member.txid].ancestors = cluster.txs.slice(index + 1).reverse();
-        txMap[member.txid].effectiveFeePerVsize = cluster.effectiveFeePerVsize;
-      });
-    }
-  }
-  return {
-    transactions,
-    clusters,
-  };
-}
-
-export function calculateGoodBlockCpfp(height: number, transactions: MempoolTransactionExtended[], accelerations: Acceleration[]): CpfpSummary {
-  const txMap: { [txid: string]: MempoolTransactionExtended } = {};
-  for (const tx of transactions) {
-    txMap[tx.txid] = tx;
-  }
-  const template = makeBlockTemplate(transactions, accelerations, 1, Infinity, Infinity);
-  const clusters = new Map<string, string[]>();
-  for (const tx of template) {
-    const cluster = tx.cluster || [];
-    const root = cluster.length ? cluster[cluster.length - 1] : null;
-    if (cluster.length > 1 && root && !clusters.has(root)) {
-      clusters.set(root, cluster);
-    }
-    txMap[tx.txid].effectiveFeePerVsize = tx.effectiveFeePerVsize;
-  }
-
-  const clusterArray: CpfpCluster[] = [];
-
-  for (const cluster of clusters.values()) {
-    for (const txid of cluster) {
-      const mempoolTx = txMap[txid];
-      if (mempoolTx) {
-        const ancestors: Ancestor[] = [];
-        const descendants: Ancestor[] = [];
-        let matched = false;
-        cluster.forEach(relativeTxid => {
-          if (relativeTxid === txid) {
-            matched = true;
-          } else {
-            const relative = {
-              txid: relativeTxid,
-              fee: txMap[relativeTxid].fee,
-              weight: (txMap[relativeTxid].adjustedVsize * 4) || txMap[relativeTxid].weight,
-            };
-            if (matched) {
-              descendants.push(relative);
-            } else {
-              ancestors.push(relative);
-            }
-          }
-        });
-        if (mempoolTx.ancestors?.length !== ancestors.length || mempoolTx.descendants?.length !== descendants.length) {
-          mempoolTx.cpfpDirty = true;
-        }
-        Object.assign(mempoolTx, { ancestors, descendants, bestDescendant: null, cpfpChecked: true });
-      }
-    }
-    const root = cluster[cluster.length - 1];
-    clusterArray.push({
-      root: root,
-      height,
-      txs: cluster.reverse().map(txid => ({
-        txid,
-        fee: txMap[txid].fee,
-        weight: (txMap[txid].adjustedVsize * 4) || txMap[txid].weight,
-      })),
-      effectiveFeePerVsize: txMap[root].effectiveFeePerVsize,
-    });
-  }
-
-  return {
-    transactions: transactions.map(tx => txMap[tx.txid]),
-    clusters: clusterArray,
+interface GraphTx extends MempoolTransactionExtended {
+  depends: string[];
+  spentby: string[];
+  ancestorMap: Map<string, GraphTx>;
+  fees: {
+    base: number;
+    ancestor: number;
   };
+  ancestorcount: number;
+  ancestorsize: number;
+  ancestorRate: number;
+  individualRate: number;
+  score: number;
 }
 
 /**
  * Takes a mempool transaction and a copy of the current mempool, and calculates the CPFP data for
  * that transaction (and all others in the same cluster)
  */
-export function calculateMempoolTxCpfp(tx: MempoolTransactionExtended, mempool: { [txid: string]: MempoolTransactionExtended }): CpfpInfo {
+export function calculateCpfp(tx: MempoolTransactionExtended, mempool: { [txid: string]: MempoolTransactionExtended }): CpfpInfo {
   if (tx.cpfpUpdated && Date.now() < (tx.cpfpUpdated + CPFP_UPDATE_INTERVAL)) {
     tx.cpfpDirty = false;
     return {
@@ -175,31 +32,30 @@ export function calculateMempoolTxCpfp(tx: MempoolTransactionExtended, mempool:
       descendants: tx.descendants || [],
       effectiveFeePerVsize: tx.effectiveFeePerVsize || tx.adjustedFeePerVsize || tx.feePerVsize,
       sigops: tx.sigops,
-      fee: tx.fee,
       adjustedVsize: tx.adjustedVsize,
       acceleration: tx.acceleration
     };
   }
 
   const ancestorMap = new Map<string, GraphTx>();
-  const graphTx = convertToGraphTx(tx, memPool.getSpendMap());
+  const graphTx = mempoolToGraphTx(tx);
   ancestorMap.set(tx.txid, graphTx);
 
-  const allRelatives = expandRelativesGraph(mempool, ancestorMap, memPool.getSpendMap());
+  const allRelatives = expandRelativesGraph(mempool, ancestorMap);
   const relativesMap = initializeRelatives(allRelatives);
   const cluster = calculateCpfpCluster(tx.txid, relativesMap);
 
   let totalVsize = 0;
   let totalFee = 0;
   for (const tx of cluster.values()) {
-    totalVsize += tx.vsize;
-    totalFee += tx.fees.base;
+    totalVsize += tx.adjustedVsize;
+    totalFee += tx.fee;
   }
   const effectiveFeePerVsize = totalFee / totalVsize;
   for (const tx of cluster.values()) {
     mempool[tx.txid].effectiveFeePerVsize = effectiveFeePerVsize;
-    mempool[tx.txid].ancestors = Array.from(tx.ancestors.values()).map(tx => ({ txid: tx.txid, weight: tx.weight, fee: tx.fees.base }));
-    mempool[tx.txid].descendants = Array.from(cluster.values()).filter(entry => entry.txid !== tx.txid && !tx.ancestors.has(entry.txid)).map(tx => ({ txid: tx.txid, weight: tx.weight, fee: tx.fees.base }));
+    mempool[tx.txid].ancestors = Array.from(tx.ancestorMap.values()).map(tx => ({ txid: tx.txid, weight: tx.weight, fee: tx.fee }));
+    mempool[tx.txid].descendants = Array.from(cluster.values()).filter(entry => entry.txid !== tx.txid && !tx.ancestorMap.has(entry.txid)).map(tx => ({ txid: tx.txid, weight: tx.weight, fee: tx.fee }));
     mempool[tx.txid].bestDescendant = null;
     mempool[tx.txid].cpfpChecked = true;
     mempool[tx.txid].cpfpDirty = true;
@@ -214,12 +70,88 @@ export function calculateMempoolTxCpfp(tx: MempoolTransactionExtended, mempool:
     descendants: tx.descendants || [],
     effectiveFeePerVsize: tx.effectiveFeePerVsize || tx.adjustedFeePerVsize || tx.feePerVsize,
     sigops: tx.sigops,
-    fee: tx.fee,
     adjustedVsize: tx.adjustedVsize,
     acceleration: tx.acceleration
   };
 }
 
+function mempoolToGraphTx(tx: MempoolTransactionExtended): GraphTx {
+  return {
+    ...tx,
+    depends: tx.vin.map(v => v.txid),
+    spentby: tx.vout.map((v, i) => memPool.getFromSpendMap(tx.txid, i)).map(tx => tx?.txid).filter(txid => txid != null) as string[],
+    ancestorMap: new Map(),
+    fees: {
+      base: tx.fee,
+      ancestor: tx.fee,
+    },
+    ancestorcount: 1,
+    ancestorsize: tx.adjustedVsize,
+    ancestorRate: 0,
+    individualRate: 0,
+    score: 0,
+  };
+}
+
+/**
+ * Takes a map of transaction ancestors, and expands it into a full graph of up to MAX_GRAPH_SIZE in-mempool relatives
+ */
+function expandRelativesGraph(mempool: { [txid: string]: MempoolTransactionExtended }, ancestors: Map<string, GraphTx>): Map<string, GraphTx> {
+  const relatives: Map<string, GraphTx> = new Map();
+  const stack: GraphTx[] = Array.from(ancestors.values());
+  while (stack.length > 0) {
+    if (relatives.size > MAX_GRAPH_SIZE) {
+      return relatives;
+    }
+
+    const nextTx = stack.pop();
+    if (!nextTx) {
+      continue;
+    }
+    relatives.set(nextTx.txid, nextTx);
+
+    for (const relativeTxid of [...nextTx.depends, ...nextTx.spentby]) {
+      if (relatives.has(relativeTxid)) {
+        // already processed this tx
+        continue;
+      }
+      let mempoolTx = ancestors.get(relativeTxid);
+      if (!mempoolTx && mempool[relativeTxid]) {
+        mempoolTx = mempoolToGraphTx(mempool[relativeTxid]);
+      }
+      if (mempoolTx) {
+        stack.push(mempoolTx);
+      }
+    }
+  }
+
+  return relatives;
+}
+
+ /**
+   * Efficiently sets a Map of in-mempool ancestors for each member of an expanded relative graph
+   * by running setAncestors on each leaf, and caching intermediate results.
+   * then initializes ancestor data for each transaction
+   * 
+   * @param all 
+   */
+ function initializeRelatives(mempoolTxs: Map<string, GraphTx>): Map<string, GraphTx> {
+  const visited: Map<string, Map<string, GraphTx>> = new Map();
+  const leaves: GraphTx[] = Array.from(mempoolTxs.values()).filter(entry => entry.spentby.length === 0);
+  for (const leaf of leaves) {
+    setAncestors(leaf, mempoolTxs, visited);
+  }
+  mempoolTxs.forEach(entry => {
+    entry.ancestorMap?.forEach(ancestor => {
+      entry.ancestorcount++;
+      entry.ancestorsize += ancestor.adjustedVsize;
+      entry.fees.ancestor += ancestor.fees.base;
+    });
+    setAncestorScores(entry);
+  });
+  return mempoolTxs;
+}
+
 /**
    * Given a root transaction and a list of in-mempool ancestors,
    * Calculate the CPFP cluster
@@ -240,10 +172,10 @@ function calculateCpfpCluster(txid: string, graph: Map<string, GraphTx>): Map<st
   let sortedRelatives = Array.from(graph.values()).sort(mempoolComparator);
 
   // Iterate until we reach a cluster that includes our target tx
-  let maxIterations = MAX_CLUSTER_ITERATIONS;
+  let maxIterations = MAX_GRAPH_SIZE;
   let best = sortedRelatives.shift();
-  let bestCluster = new Map<string, GraphTx>(best?.ancestors?.entries() || []);
-  while (sortedRelatives.length && best && (best.txid !== tx.txid && !best.ancestors.has(tx.txid)) && maxIterations > 0) {
+  let bestCluster = new Map<string, GraphTx>(best?.ancestorMap?.entries() || []);
+  while (sortedRelatives.length && best && (best.txid !== tx.txid && !best.ancestorMap.has(tx.txid)) && maxIterations > 0) {
     maxIterations--;
     if ((best && best.txid === tx.txid) || (bestCluster && bestCluster.has(tx.txid))) {
       break;
@@ -258,7 +190,7 @@ function calculateCpfpCluster(txid: string, graph: Map<string, GraphTx>): Map<st
       // Grab the next highest scoring entry
       best = sortedRelatives.shift();
       if (best) {
-        bestCluster = new Map<string, GraphTx>(best?.ancestors?.entries() || []);
+        bestCluster = new Map<string, GraphTx>(best?.ancestorMap?.entries() || []);
         bestCluster.set(best?.txid, best);
       }
     }
@@ -267,4 +199,88 @@ function calculateCpfpCluster(txid: string, graph: Map<string, GraphTx>): Map<st
   bestCluster.set(tx.txid, tx);
 
   return bestCluster;
+}
+
+ /**
+   * Remove a cluster of transactions from an in-mempool dependency graph
+   * and update the survivors' scores and ancestors
+   * 
+   * @param cluster 
+   * @param ancestors 
+   */
+ function removeAncestors(cluster: Map<string, GraphTx>, all: Map<string, GraphTx>): void {
+  // remove
+  cluster.forEach(tx => {
+    all.delete(tx.txid);
+  });
+
+  // update survivors
+  all.forEach(tx => {
+    cluster.forEach(remove => {
+      if (tx.ancestorMap?.has(remove.txid)) {
+        // remove as dependency
+        tx.ancestorMap.delete(remove.txid);
+        tx.depends = tx.depends.filter(parent => parent !== remove.txid);
+        // update ancestor sizes and fees
+        tx.ancestorsize -= remove.adjustedVsize;
+        tx.fees.ancestor -= remove.fees.base;
+      }
+    });
+    // recalculate fee rates
+    setAncestorScores(tx);
+  });
+}
+
+/**
+   * Recursively traverses an in-mempool dependency graph, and sets a Map of in-mempool ancestors
+   * for each transaction.
+   * 
+   * @param tx 
+   * @param all 
+   */
+function setAncestors(tx: GraphTx, all: Map<string, GraphTx>, visited: Map<string, Map<string, GraphTx>>, depth: number = 0): Map<string, GraphTx> {
+  // sanity check for infinite recursion / too many ancestors (should never happen)
+  if (depth > MAX_GRAPH_SIZE) {
+    return tx.ancestorMap;
+  }
+  
+  // initialize the ancestor map for this tx
+  tx.ancestorMap = new Map<string, GraphTx>();
+  tx.depends.forEach(parentId => {
+    const parent = all.get(parentId);
+    if (parent) {
+      // add the parent
+      tx.ancestorMap?.set(parentId, parent);
+      // check for a cached copy of this parent's ancestors
+      let ancestors = visited.get(parent.txid);
+      if (!ancestors) {
+        // recursively fetch the parent's ancestors
+        ancestors = setAncestors(parent, all, visited, depth + 1);
+      }
+      // and add to this tx's map
+      ancestors.forEach((ancestor, ancestorId) => {
+        tx.ancestorMap?.set(ancestorId, ancestor);
+      });
+    }
+  });
+  visited.set(tx.txid, tx.ancestorMap);
+
+  return tx.ancestorMap;
+}
+
+/**
+   * Take a mempool transaction, and set the fee rates and ancestor score
+   * 
+   * @param tx 
+   */
+function setAncestorScores(tx: GraphTx): GraphTx {
+  tx.individualRate = (tx.fees.base * 100_000_000) / tx.adjustedVsize;
+  tx.ancestorRate = (tx.fees.ancestor * 100_000_000) / tx.ancestorsize;
+  tx.score = Math.min(tx.individualRate, tx.ancestorRate);
+  return tx;
+}
+
+// Sort by descending score
+function mempoolComparator(a: GraphTx, b: GraphTx): number {
+  return b.score - a.score;
 }

backend/src/api/mini-miner.ts

@@ -1,515 +0,0 @@
-import { Acceleration } from './acceleration/acceleration';
-import { MempoolTransactionExtended } from '../mempool.interfaces';
-import logger from '../logger';
-
-const BLOCK_WEIGHT_UNITS = 4_000_000;
-const BLOCK_SIGOPS = 80_000;
-const MAX_RELATIVE_GRAPH_SIZE = 100;
-
-export interface GraphTx {
-  txid: string;
-  vsize: number;
-  weight: number;
-  depends: string[];
-  spentby: string[];
-
-  ancestorcount: number;
-  ancestorsize: number;
-  fees: { // in sats
-    base: number;
-    ancestor: number;
-  };
-
-  ancestors: Map<string, GraphTx>,
-  ancestorRate: number;
-  individualRate: number;
-  score: number;
-}
-
-interface TemplateTransaction {
-  txid: string;
-  order: number;
-  weight: number;
-  adjustedVsize: number; // sigop-adjusted vsize, rounded up to the nearest integer
-  sigops: number;
-  fee: number;
-  feeDelta: number;
-  ancestors: string[];
-  cluster: string[];
-  effectiveFeePerVsize: number;
-}
-
-interface MinerTransaction extends TemplateTransaction {
-  inputs: string[];
-  feePerVsize: number;
-  relativesSet: boolean;
-  ancestorMap: Map<string, MinerTransaction>;
-  children: Set<MinerTransaction>;
-  ancestorFee: number;
-  ancestorVsize: number;
-  ancestorSigops: number;
-  score: number;
-  used: boolean;
-  modified: boolean;
-  dependencyRate: number;
-}
-
-/**
- * Takes a raw transaction, and builds a graph of same-block relatives,
- * and returns as a GraphTx
- *
- * @param tx
- */
-export function getSameBlockRelatives(tx: MempoolTransactionExtended, transactions: MempoolTransactionExtended[]): Map<string, GraphTx> {
-  const blockTxs = new Map<string, MempoolTransactionExtended>(); // map of txs in this block
-  const spendMap = new Map<string, string>(); // map of outpoints to spending txids
-  for (const tx of transactions) {
-    blockTxs.set(tx.txid, tx);
-    for (const vin of tx.vin) {
-      spendMap.set(`${vin.txid}:${vin.vout}`, tx.txid);
-    }
-  }
-
-  const relatives: Map<string, GraphTx> = new Map();
-  const stack: string[] = [tx.txid];
-
-  // build set of same-block ancestors
-  while (stack.length > 0) {
-    const nextTxid = stack.pop();
-    const nextTx = nextTxid ? blockTxs.get(nextTxid) : null;
-    if (!nextTx || relatives.has(nextTx.txid)) {
-      continue;
-    }
-
-    const mempoolTx = convertToGraphTx(nextTx, spendMap);
-
-    for (const txid of [...mempoolTx.depends, ...mempoolTx.spentby]) {
-      if (txid) {
-        stack.push(txid);
-      }
-    }
-
-    relatives.set(mempoolTx.txid, mempoolTx);
-  }
-
-  return relatives;
-}
-
-/**
- * Takes a raw transaction and converts it to GraphTx format
- * fee and ancestor data is initialized with dummy/null values
- *
- * @param tx
- */
-export function convertToGraphTx(tx: MempoolTransactionExtended, spendMap?: Map<string, MempoolTransactionExtended | string>): GraphTx {
-  return {
-    txid: tx.txid,
-    vsize: Math.max(tx.sigops * 5, Math.ceil(tx.weight / 4)),
-    weight: tx.weight,
-    fees: {
-      base: tx.fee || 0,
-      ancestor: tx.fee || 0,
-    },
-    depends: (tx.vin.map(vin => vin.txid).filter(depend => depend) as string[]),
-    spentby: spendMap ? (tx.vout.map((vout, index) => { const spend = spendMap.get(`${tx.txid}:${index}`); return (spend?.['txid'] || spend); }).filter(spent => spent) as string[]) : [],
-
-    ancestorcount: 1,
-    ancestorsize: Math.max(tx.sigops * 5, Math.ceil(tx.weight / 4)),
-    ancestors: new Map<string, GraphTx>(),
-    ancestorRate: 0,
-    individualRate: 0,
-    score: 0,
-  };
-}
-
-/**
- * Takes a map of transaction ancestors, and expands it into a full graph of up to MAX_GRAPH_SIZE in-mempool relatives
- */
-export function expandRelativesGraph(mempool: { [txid: string]: MempoolTransactionExtended }, ancestors: Map<string, GraphTx>, spendMap: Map<string, MempoolTransactionExtended>): Map<string, GraphTx> {
-  const relatives: Map<string, GraphTx> = new Map();
-  const stack: GraphTx[] = Array.from(ancestors.values());
-  while (stack.length > 0) {
-    if (relatives.size > MAX_RELATIVE_GRAPH_SIZE) {
-      return relatives;
-    }
-
-    const nextTx = stack.pop();
-    if (!nextTx) {
-      continue;
-    }
-    relatives.set(nextTx.txid, nextTx);
-
-    for (const relativeTxid of [...nextTx.depends, ...nextTx.spentby]) {
-      if (relatives.has(relativeTxid)) {
-        // already processed this tx
-        continue;
-      }
-      let ancestorTx = ancestors.get(relativeTxid);
-      if (!ancestorTx && relativeTxid in mempool) {
-        const mempoolTx = mempool[relativeTxid];
-        ancestorTx = convertToGraphTx(mempoolTx, spendMap);
-      }
-      if (ancestorTx) {
-        stack.push(ancestorTx);
-      }
-    }
-  }
-
-  return relatives;
-}
-
-/**
- * Recursively traverses an in-mempool dependency graph, and sets a Map of in-mempool ancestors
- * for each transaction.
- *
- * @param tx
- * @param all
- */
-function setAncestors(tx: GraphTx, all: Map<string, GraphTx>, visited: Map<string, Map<string, GraphTx>>, depth: number = 0): Map<string, GraphTx> {
-  // sanity check for infinite recursion / too many ancestors (should never happen)
-  if (depth > MAX_RELATIVE_GRAPH_SIZE) {
-    logger.warn('cpfp dependency calculation failed: setAncestors reached depth of 100, unable to proceed');
-    return tx.ancestors;
-  }
-
-  // initialize the ancestor map for this tx
-  tx.ancestors = new Map<string, GraphTx>();
-  tx.depends.forEach(parentId => {
-    const parent = all.get(parentId);
-    if (parent) {
-      // add the parent
-      tx.ancestors?.set(parentId, parent);
-      // check for a cached copy of this parent's ancestors
-      let ancestors = visited.get(parent.txid);
-      if (!ancestors) {
-        // recursively fetch the parent's ancestors
-        ancestors = setAncestors(parent, all, visited, depth + 1);
-      }
-      // and add to this tx's map
-      ancestors.forEach((ancestor, ancestorId) => {
-        tx.ancestors?.set(ancestorId, ancestor);
-      });
-    }
-  });
-  visited.set(tx.txid, tx.ancestors);
-
-  return tx.ancestors;
-}
-
-/**
-   * Efficiently sets a Map of in-mempool ancestors for each member of an expanded relative graph
-   * by running setAncestors on each leaf, and caching intermediate results.
-   * then initializes ancestor data for each transaction
-   *
-   * @param all
-   */
-export function initializeRelatives(mempoolTxs: Map<string, GraphTx>): Map<string, GraphTx> {
-  const visited: Map<string, Map<string, GraphTx>> = new Map();
-  const leaves: GraphTx[] = Array.from(mempoolTxs.values()).filter(entry => entry.spentby.length === 0);
-  for (const leaf of leaves) {
-    setAncestors(leaf, mempoolTxs, visited);
-  }
-  mempoolTxs.forEach(entry => {
-    entry.ancestors?.forEach(ancestor => {
-      entry.ancestorcount++;
-      entry.ancestorsize += ancestor.vsize;
-      entry.fees.ancestor += ancestor.fees.base;
-    });
-    setAncestorScores(entry);
-  });
-  return mempoolTxs;
-}
-
-/**
- * Remove a cluster of transactions from an in-mempool dependency graph
- * and update the survivors' scores and ancestors
- *
- * @param cluster
- * @param ancestors
- */
-export function removeAncestors(cluster: Map<string, GraphTx>, all: Map<string, GraphTx>): void {
-  // remove
-  cluster.forEach(tx => {
-    all.delete(tx.txid);
-  });
-
-  // update survivors
-  all.forEach(tx => {
-    cluster.forEach(remove => {
-      if (tx.ancestors?.has(remove.txid)) {
-        // remove as dependency
-        tx.ancestors.delete(remove.txid);
-        tx.depends = tx.depends.filter(parent => parent !== remove.txid);
-        // update ancestor sizes and fees
-        tx.ancestorsize -= remove.vsize;
-        tx.fees.ancestor -= remove.fees.base;
-      }
-    });
-    // recalculate fee rates
-    setAncestorScores(tx);
-  });
-}
-
-/**
- * Take a mempool transaction, and set the fee rates and ancestor score
- *
- * @param tx
- */
-export function setAncestorScores(tx: GraphTx): void {
-  tx.individualRate = tx.fees.base / tx.vsize;
-  tx.ancestorRate = tx.fees.ancestor / tx.ancestorsize;
-  tx.score = Math.min(tx.individualRate, tx.ancestorRate);
-}
-
-// Sort by descending score
-export function mempoolComparator(a: GraphTx, b: GraphTx): number {
-  return b.score - a.score;
-}
-
-/*
-* Build a block using an approximation of the transaction selection algorithm from Bitcoin Core
-* (see BlockAssembler in https://github.com/bitcoin/bitcoin/blob/master/src/node/miner.cpp)
-*/
-export function makeBlockTemplate(candidates: MempoolTransactionExtended[], accelerations: Acceleration[], maxBlocks: number = 8, weightLimit: number = BLOCK_WEIGHT_UNITS, sigopLimit: number = BLOCK_SIGOPS): TemplateTransaction[] {
-  const auditPool: Map<string, MinerTransaction> = new Map();
-  const mempoolArray: MinerTransaction[] = [];
-
-  candidates.forEach(tx => {
-    // initializing everything up front helps V8 optimize property access later
-    const adjustedVsize = Math.ceil(Math.max(tx.weight / 4, 5 * (tx.sigops || 0)));
-    const feePerVsize = (tx.fee / adjustedVsize);
-    auditPool.set(tx.txid, {
-      txid: tx.txid,
-      order: txidToOrdering(tx.txid),
-      fee: tx.fee,
-      feeDelta: 0,
-      weight: tx.weight,
-      adjustedVsize,
-      feePerVsize: feePerVsize,
-      effectiveFeePerVsize: feePerVsize,
-      dependencyRate: feePerVsize,
-      sigops: tx.sigops || 0,
-      inputs: (tx.vin?.map(vin => vin.txid) || []) as string[],
-      relativesSet: false,
-      ancestors: [],
-      cluster: [],
-      ancestorMap: new Map<string, MinerTransaction>(),
-      children: new Set<MinerTransaction>(),
-      ancestorFee: 0,
-      ancestorVsize: 0,
-      ancestorSigops: 0,
-      score: 0,
-      used: false,
-      modified: false,
-    });
-    mempoolArray.push(auditPool.get(tx.txid) as MinerTransaction);
-  });
-
-  // set accelerated effective fee
-  for (const acceleration of accelerations) {
-    const tx = auditPool.get(acceleration.txid);
-    if (tx) {
-      tx.feeDelta = acceleration.max_bid;
-      tx.feePerVsize = ((tx.fee + tx.feeDelta) / tx.adjustedVsize);
-      tx.effectiveFeePerVsize = tx.feePerVsize;
-      tx.dependencyRate = tx.feePerVsize;
-    }
-  }
-
-  // Build relatives graph & calculate ancestor scores
-  for (const tx of mempoolArray) {
-    if (!tx.relativesSet) {
-      setRelatives(tx, auditPool);
-    }
-  }
-
-  // Sort by descending ancestor score
-  mempoolArray.sort(priorityComparator);
-
-  // Build blocks by greedily choosing the highest feerate package
-  // (i.e. the package rooted in the transaction with the best ancestor score)
-  const blocks: number[][] = [];
-  let blockWeight = 0;
-  let blockSigops = 0;
-  const transactions: MinerTransaction[] = [];
-  let modified: MinerTransaction[] = [];
-  const overflow: MinerTransaction[] = [];
-  let failures = 0;
-  while (mempoolArray.length || modified.length) {
-    // skip invalid transactions
-    while (mempoolArray[0].used || mempoolArray[0].modified) {
-      mempoolArray.shift();
-    }
-
-    // Select best next package
-    let nextTx;
-    const nextPoolTx = mempoolArray[0];
-    const nextModifiedTx = modified[0];
-    if (nextPoolTx && (!nextModifiedTx || (nextPoolTx.score || 0) > (nextModifiedTx.score || 0))) {
-      nextTx = nextPoolTx;
-      mempoolArray.shift();
-    } else {
-      modified.shift();
-      if (nextModifiedTx) {
-        nextTx = nextModifiedTx;
-      }
-    }
-
-    if (nextTx && !nextTx?.used) {
-      // Check if the package fits into this block
-      if (blocks.length >= (maxBlocks - 1) || ((blockWeight + (4 * nextTx.ancestorVsize) < weightLimit) && (blockSigops + nextTx.ancestorSigops <= sigopLimit))) {
-        const ancestors: MinerTransaction[] = Array.from(nextTx.ancestorMap.values());
-        // sort ancestors by dependency graph (equivalent to sorting by ascending ancestor count)
-        const sortedTxSet = [...ancestors.sort((a, b) => { return (a.ancestorMap.size || 0) - (b.ancestorMap.size || 0); }), nextTx];
-        const clusterTxids = sortedTxSet.map(tx => tx.txid);
-        const effectiveFeeRate = Math.min(nextTx.dependencyRate || Infinity, nextTx.ancestorFee / nextTx.ancestorVsize);
-        const used: MinerTransaction[] = [];
-        while (sortedTxSet.length) {
-          const ancestor = sortedTxSet.pop();
-          if (!ancestor) {
-            continue;
-          }
-          ancestor.used = true;
-          ancestor.usedBy = nextTx.txid;
-          // update this tx with effective fee rate & relatives data
-          if (ancestor.effectiveFeePerVsize !== effectiveFeeRate) {
-            ancestor.effectiveFeePerVsize = effectiveFeeRate;
-          }
-          ancestor.cluster = clusterTxids;
-          transactions.push(ancestor);
-          blockWeight += ancestor.weight;
-          blockSigops += ancestor.sigops;
-          used.push(ancestor);
-        }
-
-        // remove these as valid package ancestors for any descendants remaining in the mempool
-        if (used.length) {
-          used.forEach(tx => {
-            modified = updateDescendants(tx, auditPool, modified, effectiveFeeRate);
-          });
-        }
-
-        failures = 0;
-      } else {
-        // hold this package in an overflow list while we check for smaller options
-        overflow.push(nextTx);
-        failures++;
-      }
-    }
-
-    // this block is full
-    const exceededPackageTries = failures > 1000 && blockWeight > (weightLimit - 4000);
-    const queueEmpty = !mempoolArray.length && !modified.length;
-
-    if (exceededPackageTries || queueEmpty) {
-      break;
-    }
-  }
-
-  for (const tx of transactions) {
-    tx.ancestors = Object.values(tx.ancestorMap);
-  }
-
-  return transactions;
-}
-
-// traverse in-mempool ancestors
-// recursion unavoidable, but should be limited to depth < 25 by mempool policy
-function setRelatives(
-  tx: MinerTransaction,
-  mempool: Map<string, MinerTransaction>,
-): void {
-  for (const parent of tx.inputs) {
-    const parentTx = mempool.get(parent);
-    if (parentTx && !tx.ancestorMap?.has(parent)) {
-      tx.ancestorMap.set(parent, parentTx);
-      parentTx.children.add(tx);
-      // visit each node only once
-      if (!parentTx.relativesSet) {
-        setRelatives(parentTx, mempool);
-      }
-      parentTx.ancestorMap.forEach((ancestor) => {
-        tx.ancestorMap.set(ancestor.txid, ancestor);
-      });
-    }
-  };
-  tx.ancestorFee = (tx.fee + tx.feeDelta);
-  tx.ancestorVsize = tx.adjustedVsize || 0;
-  tx.ancestorSigops = tx.sigops || 0;
-  tx.ancestorMap.forEach((ancestor) => {
-    tx.ancestorFee += (ancestor.fee + ancestor.feeDelta);
-    tx.ancestorVsize += ancestor.adjustedVsize;
-    tx.ancestorSigops += ancestor.sigops;
-  });
-  tx.score = tx.ancestorFee / tx.ancestorVsize;
-  tx.relativesSet = true;
-}
-
-// iterate over remaining descendants, removing the root as a valid ancestor & updating the ancestor score
-// avoids recursion to limit call stack depth
-function updateDescendants(
-  rootTx: MinerTransaction,
-  mempool: Map<string, MinerTransaction>,
-  modified: MinerTransaction[],
-  clusterRate: number,
-): MinerTransaction[] {
-  const descendantSet: Set<MinerTransaction> = new Set();
-  // stack of nodes left to visit
-  const descendants: MinerTransaction[] = [];
-  let descendantTx: MinerTransaction | undefined;
-  rootTx.children.forEach(childTx => {
-    if (!descendantSet.has(childTx)) {
-      descendants.push(childTx);
-      descendantSet.add(childTx);
-    }
-  });
-  while (descendants.length) {
-    descendantTx = descendants.pop();
-    if (descendantTx && descendantTx.ancestorMap && descendantTx.ancestorMap.has(rootTx.txid)) {
-      // remove tx as ancestor
-      descendantTx.ancestorMap.delete(rootTx.txid);
-      descendantTx.ancestorFee -= (rootTx.fee + rootTx.feeDelta);
-      descendantTx.ancestorVsize -= rootTx.adjustedVsize;
-      descendantTx.ancestorSigops -= rootTx.sigops;
-      descendantTx.score = descendantTx.ancestorFee / descendantTx.ancestorVsize;
-      descendantTx.dependencyRate = descendantTx.dependencyRate ? Math.min(descendantTx.dependencyRate, clusterRate) : clusterRate;
-
-      if (!descendantTx.modified) {
-        descendantTx.modified = true;
-        modified.push(descendantTx);
-      }
-
-      // add this node's children to the stack
-      descendantTx.children.forEach(childTx => {
-        // visit each node only once
-        if (!descendantSet.has(childTx)) {
-          descendants.push(childTx);
-          descendantSet.add(childTx);
-        }
-      });
-    }
-  }
-  // return new, resorted modified list
-  return modified.sort(priorityComparator);
-}
-
-// Used to sort an array of MinerTransactions by descending ancestor score
-function priorityComparator(a: MinerTransaction, b: MinerTransaction): number {
-  if (b.score === a.score) {
-    // tie-break by txid for stability
-    return a.order - b.order;
-  } else {
-    return b.score - a.score;
-  }
-}
-
-// returns the most significant 4 bytes of the txid as an integer
-function txidToOrdering(txid: string): number {
-  return parseInt(
-    txid.substring(62, 64) +
-      txid.substring(60, 62) +
-      txid.substring(58, 60) +
-      txid.substring(56, 58),
-    16
-  );
-}

backend/src/api/transaction-utils.ts

@@ -103,7 +103,7 @@ class TransactionUtils {
     }
     const feePerVbytes = (transaction.fee || 0) / (transaction.weight / 4);
     const transactionExtended: TransactionExtended = Object.assign({
-      vsize: transaction.weight / 4,
+      vsize: Math.round(transaction.weight / 4),
       feePerVsize: feePerVbytes,
       effectiveFeePerVsize: feePerVbytes,
     }, transaction);
@@ -123,7 +123,7 @@ class TransactionUtils {
     const adjustedFeePerVsize = (transaction.fee || 0) / adjustedVsize;
     const transactionExtended: MempoolTransactionExtended = Object.assign(transaction, {
       order: this.txidToOrdering(transaction.txid),
-      vsize,
+      vsize: Math.round(transaction.weight / 4),
       adjustedVsize,
       sigops,
       feePerVsize: feePerVbytes,

backend/src/api/websocket-handler.ts

@@ -33,7 +33,7 @@ interface AddressTransactions {
   removed: MempoolTransactionExtended[],
 }
 import bitcoinSecondClient from './bitcoin/bitcoin-second-client';
-import { calculateMempoolTxCpfp } from './cpfp';
+import { calculateCpfp } from './cpfp';
 
 // valid 'want' subscriptions
 const wantable = [
@@ -827,7 +827,7 @@ class WebsocketHandler {
             accelerationPositions: memPool.getAccelerationPositions(mempoolTx.txid),
           };
           if (!mempoolTx.cpfpChecked && !mempoolTx.acceleration) {
-            calculateMempoolTxCpfp(mempoolTx, newMempool);
+            calculateCpfp(mempoolTx, newMempool);
           }
           if (mempoolTx.cpfpDirty) {
             positionData['cpfp'] = {
@@ -866,7 +866,7 @@ class WebsocketHandler {
               acceleratedAt: mempoolTx.acceleratedAt || undefined,
             };
             if (!mempoolTx.cpfpChecked) {
-              calculateMempoolTxCpfp(mempoolTx, newMempool);
+              calculateCpfp(mempoolTx, newMempool);
             }
             if (mempoolTx.cpfpDirty) {
               txInfo.cpfp = {

backend/src/mempool.interfaces.ts

@@ -42,19 +42,6 @@ export interface BlockAudit {
   matchRate: number,
   expectedFees?: number,
   expectedWeight?: number,
-  template?: any[];
-}
-
-export interface TransactionAudit {
-  seen?: boolean;
-  expected?: boolean;
-  added?: boolean;
-  prioritized?: boolean;
-  delayed?: number;
-  accelerated?: boolean;
-  conflict?: boolean;
-  coinbase?: boolean;
-  firstSeen?: number;
 }
 
 export interface AuditScore {
@@ -223,7 +210,6 @@ export interface CpfpInfo {
   sigops?: number;
   adjustedVsize?: number,
   acceleration?: boolean,
-  fee?: number;
 }
 
 export interface TransactionStripped {

backend/src/repositories/AccelerationRepository.ts

@@ -1,4 +1,4 @@
-import { AccelerationInfo } from '../api/acceleration/acceleration';
+import { AccelerationInfo, makeBlockTemplate } from '../api/acceleration/acceleration';
 import { RowDataPacket } from 'mysql2';
 import DB from '../database';
 import logger from '../logger';
@@ -11,7 +11,6 @@ import accelerationCosts from '../api/acceleration/acceleration';
 import bitcoinApi from '../api/bitcoin/bitcoin-api-factory';
 import transactionUtils from '../api/transaction-utils';
 import { BlockExtended, MempoolTransactionExtended } from '../mempool.interfaces';
-import { makeBlockTemplate } from '../api/mini-miner';
 
 export interface PublicAcceleration {
   txid: string,

backend/src/repositories/BlocksAuditsRepository.ts

@@ -1,7 +1,7 @@
 import blocks from '../api/blocks';
 import DB from '../database';
 import logger from '../logger';
-import { BlockAudit, AuditScore, TransactionAudit } from '../mempool.interfaces';
+import { BlockAudit, AuditScore } from '../mempool.interfaces';
 
 class BlocksAuditRepositories {
   public async $saveAudit(audit: BlockAudit): Promise<void> {
@@ -98,41 +98,6 @@ class BlocksAuditRepositories {
     }
   }
 
-  public async $getBlockTxAudit(hash: string, txid: string): Promise<TransactionAudit | null> {
-    try {
-      const blockAudit = await this.$getBlockAudit(hash);
-      
-      if (blockAudit) {
-        const isAdded = blockAudit.addedTxs.includes(txid);
-        const isPrioritized = blockAudit.prioritizedTxs.includes(txid);
-        const isAccelerated = blockAudit.acceleratedTxs.includes(txid);
-        const isConflict = blockAudit.fullrbfTxs.includes(txid);
-        let isExpected = false;
-        let firstSeen = undefined;
-        blockAudit.template?.forEach(tx => {
-          if (tx.txid === txid) {
-            isExpected = true;
-            firstSeen = tx.time;
-          }
-        });
-
-        return {
-          seen: isExpected || isPrioritized || isAccelerated,
-          expected: isExpected,
-          added: isAdded,
-          prioritized: isPrioritized,
-          conflict: isConflict,
-          accelerated: isAccelerated,
-          firstSeen,
-        }
-      }
-      return null;
-    } catch (e: any) {
-      logger.err(`Cannot fetch block transaction audit from db. Reason: ` + (e instanceof Error ? e.message : e));
-      throw e;
-    }
-  }
-
   public async $getBlockAuditScore(hash: string): Promise<AuditScore> {
     try {
       const [rows]: any[] = await DB.query(

backend/src/repositories/BlocksSummariesRepository.ts

@@ -114,43 +114,6 @@ class BlocksSummariesRepository {
     return [];
   }
 
-  public async $getSummariesBelowVersion(version: number): Promise<{ height: number, id: string, version: number }[]> {
-    try {
-      const [rows]: any[] = await DB.query(`
-        SELECT
-          height,
-          id,
-          version
-        FROM blocks_summaries
-        WHERE version < ?
-        ORDER BY height DESC;`, [version]);
-      return rows;
-    } catch (e) {
-      logger.err(`Cannot get block summaries below version. Reason: ` + (e instanceof Error ? e.message : e));
-    }
-
-    return [];
-  }
-
-  public async $getTemplatesBelowVersion(version: number): Promise<{ height: number, id: string, version: number }[]> {
-    try {
-      const [rows]: any[] = await DB.query(`
-        SELECT
-          blocks_summaries.height as height,
-          blocks_templates.id as id,
-          blocks_templates.version as version
-        FROM blocks_templates
-        JOIN blocks_summaries ON blocks_templates.id = blocks_summaries.id
-        WHERE blocks_templates.version < ?
-        ORDER BY height DESC;`, [version]);
-      return rows;
-    } catch (e) {
-      logger.err(`Cannot get block summaries below version. Reason: ` + (e instanceof Error ? e.message : e));
-    }
-
-    return [];
-  }
-
   /**
    * Get the fee percentiles if the block has already been indexed, [] otherwise
    * 

backend/src/repositories/CpfpRepository.ts

@@ -91,26 +91,6 @@ class CpfpRepository {
     return;
   }
 
-  public async $getClustersAt(height: number): Promise<CpfpCluster[]> {
-    const [clusterRows]: any = await DB.query(
-      `
-        SELECT *
-        FROM compact_cpfp_clusters
-        WHERE height = ?
-      `,
-      [height]
-    );
-    return clusterRows.map(cluster => {
-      if (cluster?.txs) {
-        cluster.effectiveFeePerVsize = cluster.fee_rate;
-        cluster.txs = this.unpack(cluster.txs);
-        return cluster;
-      } else {
-        return null;
-      }
-    }).filter(cluster => cluster !== null);
-  }
-
   public async $deleteClustersFrom(height: number): Promise<void> {
     logger.info(`Delete newer cpfp clusters from height ${height} from the database`);
     try {
@@ -142,37 +122,6 @@ class CpfpRepository {
     }
   }
 
-  public async $deleteClustersAt(height: number): Promise<void> {
-    logger.info(`Delete cpfp clusters at height ${height} from the database`);
-    try {
-      const [rows] = await DB.query(
-        `
-          SELECT txs, height, root from compact_cpfp_clusters
-          WHERE height = ?
-        `,
-        [height]
-      ) as RowDataPacket[][];
-      if (rows?.length) {
-        for (const clusterToDelete of rows) {
-          const txs = this.unpack(clusterToDelete?.txs);
-          for (const tx of txs) {
-            await transactionRepository.$removeTransaction(tx.txid);
-          }
-        }
-      }
-      await DB.query(
-        `
-          DELETE from compact_cpfp_clusters
-          WHERE height = ?
-        `,
-        [height]
-      );
-    } catch (e: any) {
-      logger.err(`Cannot delete cpfp clusters from db. Reason: ` + (e instanceof Error ? e.message : e));
-      throw e;
-    }
-  }
-
   // insert a dummy row to mark that we've indexed as far as this block
   public async $insertProgressMarker(height: number): Promise<void> {
     try {
@@ -241,32 +190,6 @@ class CpfpRepository {
       return [];
     }
   }
-
-  // returns `true` if two sets of CPFP clusters are deeply identical
-  public compareClusters(clustersA: CpfpCluster[], clustersB: CpfpCluster[]): boolean {
-    if (clustersA.length !== clustersB.length) {
-      return false;
-    }
-
-    clustersA = clustersA.sort((a,b) => a.root.localeCompare(b.root));
-    clustersB = clustersB.sort((a,b) => a.root.localeCompare(b.root));
-
-    for (let i = 0; i < clustersA.length; i++) {
-      if (clustersA[i].root !== clustersB[i].root) {
-        return false;
-      }
-      if (clustersA[i].txs.length !== clustersB[i].txs.length) {
-        return false;
-      }
-      for (let j = 0; j < clustersA[i].txs.length; j++) {
-        if (clustersA[i].txs[j].txid !== clustersB[i].txs[j].txid) {
-          return false;
-        }
-      }
-    }
-
-    return true;
-  }
 }
 
 export default new CpfpRepository();

contributors/hans-crypto.txt

@@ -1,3 +0,0 @@
-I hereby accept the terms of the Contributor License Agreement in the CONTRIBUTING.md file of the mempool/mempool git repository as of May 21, 2024.
-
-Signed: hans-crypto

contributors/jlopp.txt

@@ -1,3 +0,0 @@
-I hereby accept the terms of the Contributor License Agreement in the CONTRIBUTING.md file of the mempool/mempool git repository as of July 12, 2024.
-
-Signed: jlopp

docker/backend/start.sh

@@ -149,7 +149,7 @@ __MEMPOOL_SERVICES_ACCELERATIONS__=${MEMPOOL_SERVICES_ACCELERATIONS:=false}
 
 # REDIS
 __REDIS_ENABLED__=${REDIS_ENABLED:=false}
-__REDIS_UNIX_SOCKET_PATH__=${REDIS_UNIX_SOCKET_PATH:=""}
+__REDIS_UNIX_SOCKET_PATH__=${REDIS_UNIX_SOCKET_PATH:=true}
 __REDIS_BATCH_QUERY_BASE_SIZE__=${REDIS_BATCH_QUERY_BASE_SIZE:=5000}
 
 # FIAT_PRICE

frontend/package-lock.json

@@ -23,9 +23,9 @@
         "@angular/router": "^17.3.1",
         "@angular/ssr": "^17.3.1",
         "@fortawesome/angular-fontawesome": "~0.14.1",
-        "@fortawesome/fontawesome-common-types": "~6.6.0",
-        "@fortawesome/fontawesome-svg-core": "~6.6.0",
-        "@fortawesome/free-solid-svg-icons": "~6.6.0",
+        "@fortawesome/fontawesome-common-types": "~6.5.1",
+        "@fortawesome/fontawesome-svg-core": "~6.5.1",
+        "@fortawesome/free-solid-svg-icons": "~6.5.1",
         "@mempool/mempool.js": "2.3.0",
         "@ng-bootstrap/ng-bootstrap": "^16.0.0",
         "@types/qrcode": "~1.5.0",
@@ -3669,30 +3669,33 @@
       }
     },
     "node_modules/@fortawesome/fontawesome-common-types": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-common-types/-/fontawesome-common-types-6.6.0.tgz",
-      "integrity": "sha512-xyX0X9mc0kyz9plIyryrRbl7ngsA9jz77mCZJsUkLl+ZKs0KWObgaEBoSgQiYWAsSmjz/yjl0F++Got0Mdp4Rw==",
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-common-types/-/fontawesome-common-types-6.5.1.tgz",
+      "integrity": "sha512-GkWzv+L6d2bI5f/Vk6ikJ9xtl7dfXtoRu3YGE6nq0p/FFqA1ebMOAWg3XgRyb0I6LYyYkiAo+3/KrwuBp8xG7A==",
+      "hasInstallScript": true,
       "engines": {
         "node": ">=6"
       }
     },
     "node_modules/@fortawesome/fontawesome-svg-core": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-svg-core/-/fontawesome-svg-core-6.6.0.tgz",
-      "integrity": "sha512-KHwPkCk6oRT4HADE7smhfsKudt9N/9lm6EJ5BVg0tD1yPA5hht837fB87F8pn15D8JfTqQOjhKTktwmLMiD7Kg==",
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-svg-core/-/fontawesome-svg-core-6.5.1.tgz",
+      "integrity": "sha512-MfRCYlQPXoLlpem+egxjfkEuP9UQswTrlCOsknus/NcMoblTH2g0jPrapbcIb04KGA7E2GZxbAccGZfWoYgsrQ==",
+      "hasInstallScript": true,
       "dependencies": {
-        "@fortawesome/fontawesome-common-types": "6.6.0"
+        "@fortawesome/fontawesome-common-types": "6.5.1"
       },
       "engines": {
         "node": ">=6"
       }
     },
     "node_modules/@fortawesome/free-solid-svg-icons": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/@fortawesome/free-solid-svg-icons/-/free-solid-svg-icons-6.6.0.tgz",
-      "integrity": "sha512-IYv/2skhEDFc2WGUcqvFJkeK39Q+HyPf5GHUrT/l2pKbtgEIv1al1TKd6qStR5OIwQdN1GZP54ci3y4mroJWjA==",
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/@fortawesome/free-solid-svg-icons/-/free-solid-svg-icons-6.5.1.tgz",
+      "integrity": "sha512-S1PPfU3mIJa59biTtXJz1oI0+KAXW6bkAb31XKhxdxtuXDiUIFsih4JR1v5BbxY7hVHsD1RKq+jRkVRaf773NQ==",
+      "hasInstallScript": true,
       "dependencies": {
-        "@fortawesome/fontawesome-common-types": "6.6.0"
+        "@fortawesome/fontawesome-common-types": "6.5.1"
       },
       "engines": {
         "node": ">=6"
@@ -20794,24 +20797,24 @@
       }
     },
     "@fortawesome/fontawesome-common-types": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-common-types/-/fontawesome-common-types-6.6.0.tgz",
-      "integrity": "sha512-xyX0X9mc0kyz9plIyryrRbl7ngsA9jz77mCZJsUkLl+ZKs0KWObgaEBoSgQiYWAsSmjz/yjl0F++Got0Mdp4Rw=="
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-common-types/-/fontawesome-common-types-6.5.1.tgz",
+      "integrity": "sha512-GkWzv+L6d2bI5f/Vk6ikJ9xtl7dfXtoRu3YGE6nq0p/FFqA1ebMOAWg3XgRyb0I6LYyYkiAo+3/KrwuBp8xG7A=="
     },
     "@fortawesome/fontawesome-svg-core": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-svg-core/-/fontawesome-svg-core-6.6.0.tgz",
-      "integrity": "sha512-KHwPkCk6oRT4HADE7smhfsKudt9N/9lm6EJ5BVg0tD1yPA5hht837fB87F8pn15D8JfTqQOjhKTktwmLMiD7Kg==",
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-svg-core/-/fontawesome-svg-core-6.5.1.tgz",
+      "integrity": "sha512-MfRCYlQPXoLlpem+egxjfkEuP9UQswTrlCOsknus/NcMoblTH2g0jPrapbcIb04KGA7E2GZxbAccGZfWoYgsrQ==",
       "requires": {
-        "@fortawesome/fontawesome-common-types": "6.6.0"
+        "@fortawesome/fontawesome-common-types": "6.5.1"
       }
     },
     "@fortawesome/free-solid-svg-icons": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/@fortawesome/free-solid-svg-icons/-/free-solid-svg-icons-6.6.0.tgz",
-      "integrity": "sha512-IYv/2skhEDFc2WGUcqvFJkeK39Q+HyPf5GHUrT/l2pKbtgEIv1al1TKd6qStR5OIwQdN1GZP54ci3y4mroJWjA==",
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/@fortawesome/free-solid-svg-icons/-/free-solid-svg-icons-6.5.1.tgz",
+      "integrity": "sha512-S1PPfU3mIJa59biTtXJz1oI0+KAXW6bkAb31XKhxdxtuXDiUIFsih4JR1v5BbxY7hVHsD1RKq+jRkVRaf773NQ==",
       "requires": {
-        "@fortawesome/fontawesome-common-types": "6.6.0"
+        "@fortawesome/fontawesome-common-types": "6.5.1"
       }
     },
     "@goto-bus-stop/common-shake": {

frontend/package.json

@@ -76,9 +76,9 @@
     "@angular/router": "^17.3.1",
     "@angular/ssr": "^17.3.1",
     "@fortawesome/angular-fontawesome": "~0.14.1",
-    "@fortawesome/fontawesome-common-types": "~6.6.0",
-    "@fortawesome/fontawesome-svg-core": "~6.6.0",
-    "@fortawesome/free-solid-svg-icons": "~6.6.0",
+    "@fortawesome/fontawesome-common-types": "~6.5.1",
+    "@fortawesome/fontawesome-svg-core": "~6.5.1",
+    "@fortawesome/free-solid-svg-icons": "~6.5.1",
     "@mempool/mempool.js": "2.3.0",
     "@ng-bootstrap/ng-bootstrap": "^16.0.0",
     "@types/qrcode": "~1.5.0",

frontend/src/app/components/accelerate-checkout/accelerate-checkout.component.html

@@ -2,7 +2,7 @@
   @if (accelerateError) {
     <div class="row mb-1 text-center">
       <div class="col-sm">
-        <h1 style="font-size: larger;" i18n="accelerator.sorry-error-title">Sorry, something went wrong!</h1>
+        <h1 style="font-size: larger;">Sorry, something went wrong!</h1>
       </div>
     </div>
     <div class="row text-center mt-1">
@@ -552,15 +552,22 @@
 <ng-template #accelerateTo let-x i18n="accelerator.accelerate-to-x">Accelerate to ~{{ x | number : '1.0-0' }} sat/vB</ng-template>
 
 <ng-template #accelerateButton>
-  <div class="position-relative">
-    <button type="button" class="mt-1 btn btn-purple rounded-pill align-self-center d-flex flex-row justify-content-center align-items-center" [class.disabled]="!canPay || quoteError || cantPayReason || calculating || (!advancedEnabled && selectedOption !== 'accel')" style="width: 200px" (click)="moveToStep('checkout')">
+  @if (!couldPay && !quoteError && !(estimate?.availablePaymentMethods.bitcoin || estimate?.availablePaymentMethods.balance)) {
+    <button type="button" class="mt-1 btn btn-purple rounded-pill align-self-center d-flex flex-row justify-content-center align-items-center disabled" style="width: 200px">
       <img src="/resources/mempool-accelerator-sparkles-light.svg" height="20" class="mr-2" style="margin-left: -10px">
-      <span i18n="transaction.accelerate|Accelerate button label">Accelerate</span>
+      <span>Coming soon</span>
     </button>
-    @if (quoteError || cantPayReason) {
-      <div class="btn-error-wrapper"><span class="btn-error"><app-mempool-error [error]="quoteError || cantPayReason" [textOnly]="true" alertClass=""></app-mempool-error></span></div>
-    }
-  </div>
+  } @else {
+    <div class="position-relative">
+      <button type="button" class="mt-1 btn btn-purple rounded-pill align-self-center d-flex flex-row justify-content-center align-items-center" [class.disabled]="!canPay || quoteError || cantPayReason || calculating || (!advancedEnabled && selectedOption !== 'accel')" style="width: 200px" (click)="moveToStep('checkout')">
+        <img src="/resources/mempool-accelerator-sparkles-light.svg" height="20" class="mr-2" style="margin-left: -10px">
+        <span i18n="transaction.accelerate|Accelerate button label">Accelerate</span>
+      </button>
+      @if (quoteError || cantPayReason) {
+        <div class="btn-error-wrapper"><span class="btn-error"><app-mempool-error [error]="quoteError || cantPayReason" [textOnly]="true" alertClass=""></app-mempool-error></span></div>
+      }
+    </div>
+  }
 </ng-template>
 
 <ng-template #accountPayButton>

frontend/src/app/components/accelerate-checkout/accelerate-checkout.component.ts

@@ -1,14 +1,13 @@
 import { Component, OnInit, OnDestroy, Output, EventEmitter, Input, ChangeDetectorRef, SimpleChanges, HostListener } from '@angular/core';
 import { Subscription, tap, of, catchError, Observable, switchMap } from 'rxjs';
 import { ServicesApiServices } from '../../services/services-api.service';
-import { nextRoundNumber, insecureRandomUUID } from '../../shared/common.utils';
+import { nextRoundNumber } from '../../shared/common.utils';
 import { StateService } from '../../services/state.service';
 import { AudioService } from '../../services/audio.service';
 import { ETA, EtaService } from '../../services/eta.service';
 import { Transaction } from '../../interfaces/electrs.interface';
 import { MiningStats } from '../../services/mining.service';
 import { IAuth, AuthServiceMempool } from '../../services/auth.service';
-import { EnterpriseService } from '../../services/enterprise.service';
 
 export type PaymentMethod = 'balance' | 'bitcoin' | 'cashapp';
 
@@ -127,10 +126,9 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
     private etaService: EtaService,
     private audioService: AudioService,
     private cd: ChangeDetectorRef,
-    private authService: AuthServiceMempool,
-    private enterpriseService: EnterpriseService,
+    private authService: AuthServiceMempool
   ) {
-    this.accelerationUUID = insecureRandomUUID();
+    this.accelerationUUID = window.crypto.randomUUID();
   }
 
   ngOnInit() {
@@ -200,9 +198,6 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
     if (!this.estimate && ['quote', 'summary', 'checkout'].includes(this.step)) {
       this.fetchEstimate();
     }
-    if (this._step === 'checkout') {
-      this.enterpriseService.goal(8);
-    }
     if (this._step === 'checkout' && this.canPayWithBitcoin) {
       this.btcpayInvoiceFailed = false;
       this.loadingBtcpayInvoice = true;
@@ -297,14 +292,6 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
 
           this.validateChoice();
 
-          if (!this.couldPay) {
-            this.quoteError = `cannot_accelerate_tx`;
-            if (this.step === 'summary') {
-              this.unavailable.emit(true);
-            }
-            return;
-          }
-
           if (this.step === 'checkout' && this.canPayWithBitcoin && !this.loadingBtcpayInvoice) {
             this.loadingBtcpayInvoice = true;
             this.requestBTCPayInvoice();
@@ -559,7 +546,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
   }
 
   get couldPayWithCashapp() {
-    if (!this.cashappEnabled) {
+    if (!this.cashappEnabled || this.stateService.referrer !== 'https://cash.app/') {
       return false;
     }
     return !!this.estimate?.availablePaymentMethods?.cashapp;
@@ -582,7 +569,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
   }
 
   get canPayWithCashapp() {
-    if (!this.cashappEnabled || !this.conversions) {
+    if (!this.cashappEnabled || !this.conversions || this.stateService.referrer !== 'https://cash.app/') {
       return false;
     }
 

frontend/src/app/components/accelerate-checkout/accelerate-fee-graph.component.ts

@@ -88,7 +88,7 @@ export class AccelerateFeeGraphComponent implements OnInit, AfterViewInit, OnCha
         rate: option.rate,
         height: lastHeight,
         class: 'max',
-        label: this.showEstimate ? $localize`maximum` : $localize`accelerated`,
+        label: this.showEstimate ? $localize`maximum` : $localize`:@@25fbf6e80a945703c906a5a7d8c92e8729c7ab21:accelerated`,
         active: option.index === this.maxRateIndex,
         rateIndex: option.index,
         fee: option.fee,

frontend/src/app/components/acceleration-timeline/acceleration-timeline.component.html

@@ -1,38 +1,6 @@
-<div class="acceleration-timeline box" [class.lower-padding]="!tx.status.confirmed">
+@if (tx.status.confirmed) {
+<div class="acceleration-timeline box">
   <div class="timeline-wrapper">
-    @if (!tx.status.confirmed) {
-    <div class="timeline">
-      <div class="intervals">
-        <div class="node-spacer"></div>
-        <div class="interval-spacer"></div>
-        <div class="node-spacer"></div>
-        <div class="interval">
-          <div class="interval-time">
-            @if (eta) {
-              ~<app-time [time]="eta?.wait / 1000"></app-time> <!-- <span *ngIf="accelerateRatio > 1" class="compare"> ({{ accelerateRatio }}x faster)</span> -->
-              }
-          </div>
-        </div>
-        <div class="node-spacer"></div>
-      </div>
-      <div class="nodes">
-        <div class="node-spacer"></div>
-        <div class="interval-spacer"></div>
-        <div class="node">
-          <div class="acc-to-confirmed right go-faster"></div>
-        </div>
-        <div class="interval-spacer">
-        </div>
-        <div class="node" [id]="'confirmed'">
-          <div class="acc-to-confirmed left go-faster"></div>
-          <div class="shape-border waiting">
-            <div class="shape animate"></div>
-          </div>
-          <div class="status"><span class="badge badge-waiting" i18n="transaction.rbf.mined">Mined</span></div>
-        </div>
-      </div>
-    </div>
-    }
     <div class="timeline">
       <div class="intervals">
         <div class="node-spacer"></div>
@@ -44,13 +12,7 @@
         <div class="node-spacer"></div>
         <div class="interval">
           <div class="interval-time">
-            @if (tx.status.confirmed) {
-              <div class="interval-time">
-                <app-time [time]="tx.status.block_time - acceleratedAt"></app-time>
-              </div>
-            } @else if (standardETA && !tx.status.confirmed) {
-              <!-- ~<app-time [time]="standardETA / 1000 - now"></app-time> -->
-            }
+            <app-time [time]="tx.status.block_time - acceleratedAt"></app-time>
           </div>
         </div>
         <div class="node-spacer"></div>
@@ -63,71 +25,128 @@
           </div>
           <div class="status"><span class="badge badge-primary" i18n="transaction.first-seen|Transaction first seen">First seen</span></div>
           <div class="time">
-            @if (useAbsoluteTime) {
-            <span>{{ transactionTime * 1000 | date }}</span>
-            } @else {
-            <app-time kind="since" [time]="transactionTime"></app-time>
-            }
+            <app-time *ngIf="transactionTime > 0" kind="since" [time]="transactionTime"></app-time>
           </div>
         </div>
         <div class="interval-spacer">
           <div class="seen-to-acc"></div>
         </div>
-        <div class="node" [class.accelerated]="!tx.status.confirmed" [id]="'accelerated'">
+        <div class="node" [id]="'accelerated'">
           <div class="seen-to-acc left"></div>
-          @if (tx.status.confirmed) {
-            <div class="acc-to-confirmed right"></div>
-          } @else {
-          <div class="seen-to-acc right"></div>
-          }
-          <div  class="shape-border">
+          <div class="acc-to-confirmed right"></div>
+          <div class="shape-border">
             <div class="shape"></div>
-            @if (!tx.status.confirmed) {
-            <div class="connector down loading"></div>
-            }
           </div>
-          @if (tx.status.confirmed) {
-            <div class="status"><span class="badge badge-accelerated" i18n="transaction.audit.accelerated">Accelerated</span></div>
-          }
-          <div class="time offset-left" [class.no-margin]="!tx.status.confirmed">
-            @if (!tx.status.confirmed) {
-            <span i18n="transaction.audit.accelerated">Accelerated</span>{{ "" }} 
-            }
-            @if (useAbsoluteTime) {
-            <span>{{ acceleratedAt * 1000 | date }}</span>
-            } @else {
-            <app-time kind="since" [time]="acceleratedAt" [lowercaseStart]="true"></app-time>
-            }
+          <div class="status"><span class="badge badge-accelerated" i18n="transaction.audit.accelerated">Accelerated</span></div>
+          <div class="time">
+            <app-time *ngIf="acceleratedAt" kind="since" [time]="acceleratedAt"></app-time>
           </div>
         </div>
         <div class="interval-spacer">
-          @if (tx.status.confirmed) {
           <div class="acc-to-confirmed"></div>
-          } @else {
-          <div class="seen-to-acc"></div>
-          }
         </div>
-        <div class="node" [class.selected]="tx.status.confirmed" [id]="'confirmed'">
-          @if (tx.status.confirmed) {
-          <div class="acc-to-confirmed left"></div>
-          } @else {
-          <div class="seen-to-acc left"></div>
-          }
-          <div class="shape-border" [class.waiting]="!tx.status.confirmed">
+        <div class="node selected" [id]="'confirmed'">
+          <div class="acc-to-confirmed left" ></div>
+          <div class="shape-border">
             <div class="shape"></div>
           </div>
-          @if (tx.status.confirmed) {
           <div class="status"><span class="badge badge-success" i18n="transaction.rbf.mined">Mined</span></div>
           <div class="time">
-            @if (useAbsoluteTime) {
-            <span>{{ tx.status.block_time * 1000 | date }}</span>
-            } @else {
             <app-time kind="since" [time]="tx.status.block_time"></app-time>
-            }
           </div>
-          }
+        </div>
+      </div>  
+    </div>
+  </div>
+</div>
+} @else if (acceleratedETA) { <!-- Not yet accelerated; to be shown only in acceleration checkout -->
+} @else if (standardETA) { <!-- Accelerated -->
+  <div class="acceleration-timeline box lower-padding">
+    <div class="timeline-wrapper">
+      <div class="timeline">
+        <div class="intervals">
+          <div class="node-spacer"></div>
+          <div class="interval-spacer"></div>
+          <div class="node-spacer"></div>
+          <div class="interval">
+            <div class="interval-time">
+              @if (eta) {
+                ~<app-time [time]="eta?.wait / 1000"></app-time> <!-- <span *ngIf="accelerateRatio > 1" class="compare"> ({{ accelerateRatio }}x faster)</span> -->
+                }
+            </div>
+          </div>
+          <div class="node-spacer"></div>
+        </div>
+        <div class="nodes">
+          <div class="node-spacer"></div>
+          <div class="interval-spacer"></div>
+          <div class="node">
+            <div class="acc-to-confirmed right go-faster"></div>
+          </div>
+          <div class="interval-spacer">
+          </div>
+          <div class="node" [id]="'confirmed'">
+            <div class="acc-to-confirmed left go-faster"></div>
+            <div class="shape-border waiting">
+              <div class="shape animate"></div>
+            </div>
+            <div class="status"><span class="badge badge-waiting" i18n="transaction.rbf.mined">Mined</span></div>
+          </div>
+        </div>
+      </div>
+      <div class="timeline">
+        <div class="intervals">
+          <div class="node-spacer"></div>
+          <div class="interval">
+            <div class="interval-time">
+              <app-time [time]="acceleratedAt - transactionTime"></app-time>
+            </div>
+          </div>
+          <div class="node-spacer"></div>
+          <div class="interval">
+            <div class="interval-time">
+                <!-- ~<app-time [time]="standardETA / 1000 - now"></app-time> -->
+                -
+            </div>
+          </div>
+          <div class="node-spacer"></div>
+        </div>
+        <div class="nodes">
+          <div class="node" [id]="'first-seen'">
+            <div class="seen-to-acc right"></div>
+            <div class="shape-border">
+              <div class="shape"></div>
+            </div>
+            <div class="status"><span class="badge badge-primary" i18n="transaction.first-seen|Transaction first seen">First seen</span></div>
+            <div class="time">
+              <app-time *ngIf="transactionTime > 0" kind="since" [time]="transactionTime"></app-time>
+            </div>
+          </div>
+          <div class="interval-spacer">
+            <div class="seen-to-acc"></div>
+          </div>
+          <div class="node accelerated" [id]="'accelerated'">
+            <div class="seen-to-acc left"></div>
+            <div class="seen-to-acc right"></div>
+            <div  class="shape-border">
+              <div class="shape"></div>
+              <div class="connector down loading"></div>
+            </div>
+            <div class="time" style="margin-top: 3px;">
+              <span i18n="transaction.audit.accelerated">Accelerated</span>&nbsp;<app-time *ngIf="acceleratedAt" kind="since" [time]="acceleratedAt"></app-time>
+            </div>
+          </div>
+          <div class="interval-spacer">
+            <div class="seen-to-acc"></div>
+          </div>
+          <div class="node" [id]="'confirmed'">
+            <div class="seen-to-acc left"></div>
+            <div class="shape-border waiting">
+              <div class="shape"></div>
+            </div>
+          </div>
         </div>
       </div>
     </div>
   </div>
-</div>
+}

frontend/src/app/components/acceleration-timeline/acceleration-timeline.component.scss

@@ -209,7 +209,7 @@
       }
 
       .status {
-        margin-top: -66px;
+        margin-top: -64px;
 
         .badge.badge-waiting {
           opacity: 0.5;
@@ -224,20 +224,10 @@
       }
 
       .time {
-        margin-top: 32px;
+        margin-top: 33px;
         font-size: 12px;
         line-height: 16px;
         white-space: nowrap;
-
-        &.offset-left {
-          @media (max-width: 650px) {
-            margin-left: -20px;
-          }
-        }
-
-        &.no-margin {
-          margin-top: 0px;
-        }
       }
     }
   }

frontend/src/app/components/acceleration-timeline/acceleration-timeline.component.ts

@@ -19,23 +19,15 @@ export class AccelerationTimelineComponent implements OnInit, OnChanges {
   acceleratedAt: number;
   now: number;
   accelerateRatio: number;
-  useAbsoluteTime: boolean = false;
-  interval: number;
 
   constructor() {}
 
   ngOnInit(): void {
     this.acceleratedAt = this.tx.acceleratedAt ?? new Date().getTime() / 1000;
-    this.now = Math.floor(new Date().getTime() / 1000);
-    this.useAbsoluteTime = this.tx.status.block_time < this.now - 7 * 24 * 3600;
-
-    this.interval = window.setInterval(() => {
-      this.now = Math.floor(new Date().getTime() / 1000);
-      this.useAbsoluteTime = this.tx.status.block_time < this.now - 7 * 24 * 3600;
-    }, 60000);
   }
 
   ngOnChanges(changes): void {
+    this.now = Math.floor(new Date().getTime() / 1000);
     // Hide standard ETA while we don't have a proper standard ETA calculation, see https://github.com/mempool/mempool/issues/65
     
     // if (changes?.eta?.currentValue || changes?.standardETA?.currentValue || changes?.acceleratedETA?.currentValue) {
@@ -48,8 +40,4 @@ export class AccelerationTimelineComponent implements OnInit, OnChanges {
     //   }
     // }
   }
-
-  ngOnDestroy(): void {
-    clearInterval(this.interval);
-  }
 }

frontend/src/app/components/acceleration/acceleration-fees-graph/acceleration-fees-graph.component.html

@@ -45,8 +45,8 @@
     </form>
   </div>
 
-  <div [class.chart]="!widget" [class.chart-widget]="widget" *browserOnly [style]="{ height: widget ? ((height + 20) + 'px') : null, opacity: isLoading ? 0.5 : 1 }" echarts [initOpts]="chartInitOptions" [options]="chartOptions"
-    (chartInit)="onChartInit($event)">
+  <div [class.chart]="!widget" [class.chart-widget]="widget" *browserOnly [style]="{ height: widget ? ((height + 20) + 'px') : null}" echarts [initOpts]="chartInitOptions" [options]="chartOptions"
+    (chartInit)="onChartInit($event)" [style]="{opacity: isLoading ? 0.5 : 1}">
   </div>
   <div class="text-center loadingGraphs" *ngIf="!stateService.isBrowser || isLoading">
     <div class="spinner-border text-light"></div>

frontend/src/app/components/acceleration/acceleration-fees-graph/acceleration-fees-graph.component.ts

@@ -1,4 +1,4 @@
-import { ChangeDetectionStrategy, ChangeDetectorRef, Component, Inject, Input, LOCALE_ID, NgZone, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core';
+import { ChangeDetectionStrategy, ChangeDetectorRef, Component, Inject, Input, LOCALE_ID, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core';
 import { EChartsOption } from '../../../graphs/echarts';
 import { Observable, Subject, Subscription, combineLatest, fromEvent, merge, share } from 'rxjs';
 import { startWith, switchMap, tap } from 'rxjs/operators';
@@ -8,11 +8,10 @@ import { UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';
 import { download, formatterXAxis, formatterXAxisLabel, formatterXAxisTimeCategory } from '../../../shared/graphs.utils';
 import { StorageService } from '../../../services/storage.service';
 import { MiningService } from '../../../services/mining.service';
-import { ActivatedRoute, Router } from '@angular/router';
+import { ActivatedRoute } from '@angular/router';
 import { Acceleration } from '../../../interfaces/node-api.interface';
 import { ServicesApiServices } from '../../../services/services-api.service';
 import { StateService } from '../../../services/state.service';
-import { RelativeUrlPipe } from '../../../shared/pipes/relative-url/relative-url.pipe';
 
 @Component({
   selector: 'app-acceleration-fees-graph',
@@ -33,7 +32,7 @@ export class AccelerationFeesGraphComponent implements OnInit, OnChanges, OnDest
   @Input() height: number = 300;
   @Input() right: number | string = 45;
   @Input() left: number | string = 75;
-  @Input() period: '24h' | '3d' | '1w' | '1m' | 'all' = '1w';
+  @Input() period: '3d' | '1w' | '1m' = '1w';
   @Input() accelerations$: Observable<Acceleration[]>;
 
   miningWindowPreference: string;
@@ -49,7 +48,7 @@ export class AccelerationFeesGraphComponent implements OnInit, OnChanges, OnDest
   isLoading = true;
   formatNumber = formatNumber;
   timespan = '';
-  periodSubject$: Subject<'24h' | '3d' | '1w' | '1m' | 'all'> = new Subject();
+  periodSubject$: Subject<'3d' | '1w' | '1m'> = new Subject();
   chartInstance: any = undefined;
   daysAvailable: number = 0;
 
@@ -63,8 +62,6 @@ export class AccelerationFeesGraphComponent implements OnInit, OnChanges, OnDest
     private route: ActivatedRoute,
     public stateService: StateService,
     private cd: ChangeDetectorRef,
-    private router: Router,
-    private zone: NgZone,
   ) {
     this.radioGroupForm = this.formBuilder.group({ dateSpan: '1w' });
     this.radioGroupForm.controls.dateSpan.setValue('1w');
@@ -81,7 +78,7 @@ export class AccelerationFeesGraphComponent implements OnInit, OnChanges, OnDest
     this.radioGroupForm.controls.dateSpan.setValue(this.miningWindowPreference);
     
     this.route.fragment.subscribe((fragment) => {
-      if (['24h', '3d', '1w', '1m', '3m', 'all'].indexOf(fragment) > -1) {
+      if (['24h', '3d', '1w', '1m', '3m'].indexOf(fragment) > -1) {
         this.radioGroupForm.controls.dateSpan.setValue(fragment, { emitEvent: false });
       }
     });
@@ -297,19 +294,6 @@ export class AccelerationFeesGraphComponent implements OnInit, OnChanges, OnDest
 
   onChartInit(ec) {
     this.chartInstance = ec;
-
-    this.chartInstance.on('click', (e) => {
-      this.zone.run(() => {
-        if (['24h', '3d'].includes(this.timespan)) {
-          const url = new RelativeUrlPipe(this.stateService).transform(`/block/${e.data[2]}`);
-          if (e.event.event.shiftKey || e.event.event.ctrlKey || e.event.event.metaKey) {
-            window.open(url);
-          } else {
-            this.router.navigate([url]);
-          }
-        }
-      });
-    });
   }
 
   isMobile() {

frontend/src/app/components/acceleration/acceleration-stats/acceleration-stats.component.html

@@ -4,7 +4,7 @@
       <h5 class="card-title" i18n="accelerator.requests">Requests</h5>
       <div class="card-text">
         <div>{{ stats.totalRequested }}</div>
-        <div class="symbol" i18n="accelerator.total-accelerated-plural">accelerated</div>
+        <div class="symbol" i18n="accelerator.total-accelerated">accelerated</div>
       </div>
     </div>
     <div class="item">

frontend/src/app/components/acceleration/acceleration-stats/acceleration-stats.component.ts

@@ -16,7 +16,7 @@ export type AccelerationStats = {
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class AccelerationStatsComponent implements OnInit, OnChanges {
-  @Input() timespan: '24h' | '3d' | '1w' | '1m' | 'all' = '1w';
+  @Input() timespan: '3d' | '1w' | '1m' = '1w';
   accelerationStats$: Observable<AccelerationStats>;
   blocksInPeriod: number = 7 * 144;
 
@@ -35,9 +35,6 @@ export class AccelerationStatsComponent implements OnInit, OnChanges {
   updateStats(): void {
     this.accelerationStats$ = this.servicesApiService.getAccelerationStats$({ timeframe: this.timespan });
     switch (this.timespan) {
-      case '24h':
-        this.blocksInPeriod = 144;
-        break;
       case '3d':
         this.blocksInPeriod = 3 * 144;
         break;
@@ -47,9 +44,6 @@ export class AccelerationStatsComponent implements OnInit, OnChanges {
       case '1m':
         this.blocksInPeriod = 30 * 144;
         break;
-      case 'all':
-        this.blocksInPeriod = Infinity;
-        break;
     }
   }
 }

frontend/src/app/components/acceleration/accelerator-dashboard/accelerator-dashboard.component.html

@@ -23,18 +23,12 @@
       <div class="main-title">
         <span [attr.data-cy]="'acceleration-stats'" i18n="accelerator.acceleration-stats">Acceleration stats</span>&nbsp;
         @switch (timespan) {
-          @case ('24h') {
-            <span style="font-size: xx-small" i18n="mining.1-day">(1 day)</span>
-          }
           @case ('1w') {
             <span style="font-size: xx-small" i18n="mining.1-week">(1 week)</span>
           }
           @case ('1m') {
             <span style="font-size: xx-small" i18n="mining.1-month">(1 month)</span>
           }
-          @case ('all') {
-            <span style="font-size: xx-small" i18n="mining.all-time">(all time)</span>
-          }
         }
       </div>
       <div class="card-wrapper">
@@ -42,17 +36,11 @@
           <div class="card-body more-padding">
             <app-acceleration-stats [timespan]="timespan"></app-acceleration-stats>
             <div class="widget-toggler">
-              <a href="" (click)="setTimespan('24h')" class="toggler-option"
-                [ngClass]="{'inactive': timespan === '24h'}"><small>24h</small></a>
-              <span style="color: #ffffff66; font-size: 8px"> | </span>
               <a href="" (click)="setTimespan('1w')" class="toggler-option"
                 [ngClass]="{'inactive': timespan === '1w'}"><small>1w</small></a>
               <span style="color: #ffffff66; font-size: 8px"> | </span>
               <a href="" (click)="setTimespan('1m')" class="toggler-option"
               [ngClass]="{'inactive': timespan === '1m'}"><small>1m</small></a>
-              <span style="color: #ffffff66; font-size: 8px"> | </span>
-              <a href="" (click)="setTimespan('all')" class="toggler-option"
-              [ngClass]="{'inactive': timespan === 'all'}"><small>all</small></a>
             </div>
           </div>
         </div>

frontend/src/app/components/acceleration/accelerator-dashboard/accelerator-dashboard.component.ts

@@ -37,7 +37,7 @@ export class AcceleratorDashboardComponent implements OnInit, OnDestroy {
   webGlEnabled = true;
   seen: Set<string> = new Set();
   firstLoad = true;
-  timespan: '24h' | '3d' | '1w' | '1m' | 'all' = '1w';
+  timespan: '3d' | '1w' | '1m' = '1w';
 
   accelerationDeltaSubscription: Subscription;
 
@@ -99,7 +99,7 @@ export class AcceleratorDashboardComponent implements OnInit, OnDestroy {
     this.minedAccelerations$ = this.stateService.chainTip$.pipe(
       distinctUntilChanged(),
       switchMap(() => {
-        return this.serviceApiServices.getAccelerationHistory$({ status: 'completed_provisional,completed', pageLength: 6 }).pipe(
+        return this.serviceApiServices.getAccelerationHistory$({ status: 'completed', pageLength: 6 }).pipe(
           catchError(() => {
             return of([]);
           }),

frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.html

@@ -18,12 +18,7 @@
         </div>
       </td>
       <td class="pie-chart" rowspan="2" *ngIf="!chartPositionLeft">
-        <div class="d-flex justify-content-between align-items-start">
-          @if (hasCpfp) {
-            <button type="button" class="btn btn-outline-info btn-sm btn-small-height float-right mt-0" (click)="onToggleCpfp()">CPFP <fa-icon [icon]="['fas', 'info-circle']" [fixedWidth]="true"></fa-icon></button>
-          }
-          <ng-container *ngTemplateOutlet="pieChart"></ng-container>
-        </div>
+        <ng-container *ngTemplateOutlet="pieChart"></ng-container>
       </td>
     </tr>
     <tr>
@@ -32,15 +27,6 @@
         <ng-container i18n="accelerator.x-of-hash-rate">{{ acceleratedByPercentage }} <span class="symbol hashrate-label">of hashrate</span></ng-container>
       </td>
     </tr>
-    @if (hasCpfp && chartPositionLeft) {
-      <tr>
-        <td colspan="3" class="pt-0">
-          <div class="d-flex justify-content-end align-items-start">
-            <button type="button" class="btn btn-outline-info btn-sm btn-small-height float-right mt-0" (click)="onToggleCpfp()">CPFP <fa-icon [icon]="['fas', 'info-circle']" [fixedWidth]="true"></fa-icon></button>
-          </div>
-        </td>
-      </tr>
-    }
   </tbody>
 </table>
 }

frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.ts

@@ -1,4 +1,4 @@
-import { Component, ChangeDetectionStrategy, Input, Output, OnChanges, SimpleChanges, EventEmitter } from '@angular/core';
+import { Component, ChangeDetectionStrategy, Input, OnChanges, SimpleChanges } from '@angular/core';
 import { Transaction } from '../../../interfaces/electrs.interface';
 import { Acceleration, SinglePoolStats } from '../../../interfaces/node-api.interface';
 import { EChartsOption, PieSeriesOption } from '../../../graphs/echarts';
@@ -27,10 +27,8 @@ export class ActiveAccelerationBox implements OnChanges {
   @Input() accelerationInfo: Acceleration;
   @Input() miningStats: MiningStats;
   @Input() pools: number[];
-  @Input() hasCpfp: boolean = false;
   @Input() chartOnly: boolean = false;
   @Input() chartPositionLeft: boolean = false;
-  @Output() toggleCpfp = new EventEmitter();
 
   acceleratedByPercentage: string = '';
 
@@ -135,8 +133,4 @@ export class ActiveAccelerationBox implements OnChanges {
     }
     this.chartInstance = ec;
   }
-
-  onToggleCpfp(): void {
-    this.toggleCpfp.emit();
-  }
 }

frontend/src/app/components/address/address.component.html

@@ -201,7 +201,7 @@
         <span i18n="address.error.loading-address-data">Error loading address data.</span>
         <br>
         <ng-container i18n="Electrum server limit exceeded error">
-          <i>There are too many transactions on this address, more than your backend can handle. See more on <a href="/docs/faq#address-lookup-issues">setting up a stronger backend</a>.</i>
+          <i>There many transactions on this address, more than your backend can handle. See more on <a href="/docs/faq#address-lookup-issues">setting up a stronger backend</a>.</i>
           <br><br>
           Consider viewing this address on the official Mempool website instead:
         </ng-container>

frontend/src/app/components/bitcoin-invoice/bitcoin-invoice.component.ts

@@ -3,7 +3,7 @@ import { FormBuilder, FormGroup } from '@angular/forms';
 import { DomSanitizer, SafeUrl } from '@angular/platform-browser';
 import { ActivatedRoute } from '@angular/router';
 import { Subscription, of, timer } from 'rxjs';
-import { filter, repeat, retry, switchMap, take, tap } from 'rxjs/operators';
+import { retry, switchMap, tap } from 'rxjs/operators';
 import { ServicesApiServices } from '../../services/services-api.service';
 
 @Component({
@@ -73,11 +73,8 @@ export class BitcoinInvoiceComponent implements OnInit, OnChanges, OnDestroy {
       this.paymentStatus = 4;
     }
     this.paymentStatusSubscription = this.apiService.getPaymentStatus$(this.invoice.btcpayInvoiceId).pipe(
-      retry({ delay: () => timer(2000)}),
-      repeat({delay: 2000}),
-      filter((response) => response.status !== 204 && response.status !== 404),
-      take(1),
-    ).subscribe(() => {
+      retry({ delay: () => timer(2000)})
+    ).subscribe((result) => {
       this.paymentStatus = 3;
       this.completed.emit();
     });

frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.ts

@@ -68,7 +68,7 @@ export class BlockOverviewTooltipComponent implements OnChanges {
       this.effectiveRate = this.tx.rate;
       const txFlags = BigInt(this.tx.flags) || 0n;
       this.acceleration = this.tx.acc || (txFlags & TransactionFlags.acceleration);
-      this.hasEffectiveRate = this.tx.acc || !(Math.abs((this.fee / this.vsize) - this.effectiveRate) <= 0.1 && Math.abs((this.fee / Math.ceil(this.vsize)) - this.effectiveRate) <= 0.1)
+      this.hasEffectiveRate = this.tx.acc || Math.abs((this.fee / this.vsize) - this.effectiveRate) > 0.05
         || (txFlags && (txFlags & (TransactionFlags.cpfp_child | TransactionFlags.cpfp_parent)) > 0n);
       this.filters = this.tx.flags ? toFilters(txFlags).filter(f => f.tooltip) : [];
       this.activeFilters = {}

frontend/src/app/components/block/block-preview.component.html

@@ -52,9 +52,9 @@
           <tr *ngIf="network !== 'liquid' && network !== 'liquidtestnet'">
             <td i18n="block.miner">Miner</td>
             <td *ngIf="stateService.env.MINING_DASHBOARD">
-              <a placement="bottom" [routerLink]="['/mining/pool' | relativeUrl, block.extras.pool.slug]" class="badge" style="color: #FFF;padding:0;">
-                <img class="pool-logo" [src]="'/resources/mining-pools/' + block.extras.pool.slug + '.svg'" onError="this.src = '/resources/mining-pools/default.svg'" [alt]="'Logo of ' + block.extras.pool.name + ' mining pool'">
-                {{ block.extras.pool.name }}
+              <a [attr.data-cy]="'block-details-miner-badge'" placement="bottom" [routerLink]="['/mining/pool' | relativeUrl, block?.extras.pool.slug]" class="badge"
+                [class]="!block?.extras.pool.name || block?.extras.pool.slug === 'unknown' ? 'badge-secondary' : 'badge-primary'">
+                {{ block?.extras.pool.name }}
               </a>
             </td>
             <td *ngIf="!stateService.env.MINING_DASHBOARD && stateService.env.BASE_MODULE === 'mempool'">

frontend/src/app/components/block/block-preview.component.scss

@@ -65,11 +65,3 @@
 .badge {
   transition: none;
 }
-
-.pool-logo {
-  width: 25px;
-  height: 25px;
-  position: relative;
-  top: -1px;
-  margin-right: 2px;
-}

frontend/src/app/components/block/block-transactions.component.html

@@ -20,7 +20,7 @@
 </ng-template>
 
 <ng-template #loading>
-  <div class="tx-skeleton">
+  <div class="text-center mb-4" class="tx-skeleton">
     <ng-container *ngIf="(txsLoadingStatus$ | async) as txsLoadingStatus; else headerLoader">
       <div class="header-bg box">
         <div class="progress progress-dark" style="margin: 4px; height: 14px;">

frontend/src/app/components/block/block.component.html

@@ -182,7 +182,7 @@
         <td i18n="block.miner">Miner</td>
         <td *ngIf="stateService.env.MINING_DASHBOARD">
           <a placement="bottom" [routerLink]="['/mining/pool' | relativeUrl, block.extras.pool.slug]" class="badge" style="color: #FFF;padding:0;">
-            <img class="pool-logo" [src]="'/resources/mining-pools/' + block.extras.pool.slug + '.svg'" onError="this.src = '/resources/mining-pools/default.svg'" [alt]="'Logo of ' + block.extras.pool.name + ' mining pool'">
+            <app-pool-logo [pool]="block.extras.pool" style="position: relative; top: -1px; margin-right: 2px;"></app-pool-logo>
             {{ block.extras.pool.name }}
           </a>
         </td>
@@ -338,7 +338,7 @@
           <ngb-pagination class="pagination-container float-right" [disabled]="true" [collectionSize]="block.tx_count" [rotate]="true" [pageSize]="stateService.env.ITEMS_PER_PAGE" [maxSize]="paginationMaxSize" [boundaryLinks]="true" [ellipses]="false"></ngb-pagination>
         </div>
         <div class="clearfix"></div>
-        <div class="tx-skeleton">
+        <div class="text-center mb-4" class="tx-skeleton">
   
           <div class="header-bg box">
             <span class="skeleton-loader"></span>

frontend/src/app/components/blockchain-blocks/blockchain-blocks.component.html

@@ -61,7 +61,7 @@
         </div>
         <div class="animated" *ngIf="block.extras?.pool != undefined && showPools">
           <a [attr.data-cy]="'bitcoin-block-' + offset + '-index-' + i + '-pool'" class="badge" [routerLink]="[('/mining/pool/' + block.extras.pool.slug) | relativeUrl]">
-            <img class="pool-logo" [src]="'/resources/mining-pools/' + block.extras.pool.slug + '.svg'" onError="this.src = '/resources/mining-pools/default.svg'" [alt]="'Logo of ' + block.extras.pool.name + ' mining pool'"> 
+            <app-pool-logo [pool]="block.extras.pool" style="position: relative; top: -1px; margin-right: 2px;"></app-pool-logo>
             {{ block.extras.pool.name}}
           </a>
         </div>

frontend/src/app/components/blocks-list/blocks-list.component.html

@@ -32,15 +32,13 @@
           <td  *ngIf="isMempoolModule" class="pool text-left" [ngClass]="{'widget': widget, 'legacy': !isMempoolModule}">
             <div *ngIf="indexingAvailable" class="tooltip-custom">
               <a class="clear-link" [routerLink]="['/mining/pool' | relativeUrl, block.extras.pool.slug]">
-                <img width="22" height="22" src="{{ block.extras.pool['logo'] }}"
-                  onError="this.onerror=null; this.src = '/resources/mining-pools/default.svg'" [alt]="'Logo of ' + block.extras.pool.name + ' mining pool'">
+                <app-pool-logo [pool]="block.extras.pool" [width]="22" [height]="22"></app-pool-logo>
                 <span class="pool-name">{{ block.extras.pool.name }}</span>
               </a>
               <span *ngIf="!widget" class="tooltiptext badge badge-secondary scriptmessage">{{ block.extras.coinbaseRaw | hex2ascii }}</span>
             </div>
             <div *ngIf="!indexingAvailable" class="tooltip-custom">
-              <img width="22" height="22" src="{{ block.extras.pool['logo'] }}"
-                onError="this.src = '/resources/mining-pools/default.svg'" [alt]="'Logo of ' + block.extras.pool.name + ' mining pool'">
+              <app-pool-logo [pool]="block.extras.pool" [width]="22" [height]="22"></app-pool-logo>
               <span class="pool-name">{{ block.extras.pool.name }}</span>
               <span *ngIf="!widget" class="tooltiptext badge badge-secondary scriptmessage">{{ block.extras.coinbaseRaw | hex2ascii }}</span>
             </div>

frontend/src/app/components/blocks-list/blocks-list.component.ts

@@ -126,12 +126,6 @@ export class BlocksList implements OnInit {
                 this.lastBlockHeight = Math.max(...blocks.map(o => o.height));
               }),
               map(blocks => {
-                if (this.stateService.env.BASE_MODULE === 'mempool') {
-                  for (const block of blocks) {
-                    // @ts-ignore: Need to add an extra field for the template
-                    block.extras.pool.logo = `/resources/mining-pools/` + block.extras.pool.slug + '.svg';
-                  }
-                }
                 if (this.widget) {
                   return blocks.slice(0, 6);
                 }

frontend/src/app/components/menu/menu.component.html

@@ -34,12 +34,7 @@
             <li class="nav-item d-flex justify-content-start align-items-center menu-click">
               <fa-icon class="menu-click" [icon]="['fas', item.faIcon]" [fixedWidth]="true"></fa-icon>
               <button *ngIf="item.link === 'logout'" class="btn nav-link menu-click" role="tab" (click)="logout()">{{ item.title }}</button>
-              <a *ngIf="item.title !== 'Logout'" class="nav-link menu-click" [routerLink]="[item.link]" role="tab">
-                {{ item.title }}
-                @if (item.isExternal === true) {
-                  <fa-icon [icon]="['fas', 'external-link-alt']" [fixedWidth]="true" style="margin-left: 5px; font-size: 13px; color: lightgray"></fa-icon>
-                }
-              </a>
+              <a *ngIf="item.title !== 'Logout'" class="nav-link menu-click" [routerLink]="[item.link]" role="tab">{{ item.title }}</a>
             </li>
           </ul>
         </div>

frontend/src/app/components/pool-ranking/pool-ranking.component.html

@@ -102,7 +102,7 @@
         <tr *ngFor="let pool of miningStats.pools">
           <td class="d-none d-md-table-cell">{{ pool.rank }}</td>
           <td class="text-right">
-            <img width="25" height="25" src="{{ pool.logo }}" [alt]="pool.name + ' mining pool logo'" onError="this.onerror=null; this.src = '/resources/mining-pools/default.svg'">
+            <app-pool-logo [pool]="pool" [width]="25" [height]="25"></app-pool-logo>
           </td>
           <td class="pool-name"><a [routerLink]="[('/mining/pool/' + pool.slug) | relativeUrl]">{{ pool.name }}</a></td>
           <td class="" *ngIf="this.miningWindowPreference === '24h'">{{ pool.lastEstimatedHashrate | number: '1.2-2' }} {{

frontend/src/app/components/pool/pool.component.html

@@ -5,8 +5,7 @@
   <!-- Pool overview -->
   <div *ngIf="poolStats$ | async as poolStats; else loadingMain">
     <div style="display:flex" class="mb-3">
-      <img width="50" height="50" src="{{ poolStats['logo'] }}" [alt]="poolStats.pool.name + ' mining pool logo'"
-        onError="this.onerror=null; this.src = '/resources/mining-pools/default.svg'" class="mr-3">
+      <app-pool-logo [pool]="poolStats.pool" [width]="50" [height]="50" class="mr-3"></app-pool-logo>
       <h1 class="m-0 pt-1 pt-md-0">{{ poolStats.pool.name }}</h1>
     </div>
 

frontend/src/app/components/reward-stats/reward-stats.component.html

@@ -5,7 +5,7 @@
       ngbTooltip="Miners Reward" placement="bottom" #minersreward [disableTooltip]="!isEllipsisActive(minersreward)">Miners Reward</h5>
       <div class="card-text" i18n-ngbTooltip="mining.rewards-desc" ngbTooltip="Amount being paid to miners in the past 144 blocks" placement="bottom">
         <div class="fee-text">
-          <app-amount [satoshis]="rewardStats.totalReward" digitsInfo="1.2-2" [noFiat]="true" [ignoreViewMode]="true"></app-amount>
+          <app-amount [satoshis]="rewardStats.totalReward" digitsInfo="1.2-2" [noFiat]="true"></app-amount>
         </div>
         <span class="fiat">
           <app-fiat [value]="rewardStats.totalReward" digitsInfo="1.0-0" ></app-fiat>

frontend/src/app/components/search-form/search-results/search-results.component.html

@@ -47,7 +47,7 @@
     <div class="card-title" i18n="search.mining-pools">Mining Pools</div>
     <ng-template ngFor [ngForOf]="results.pools" let-pool let-i="index">
       <button (click)="clickItem(results.hashQuickMatch + results.addresses.length + i)" [class.active]="results.hashQuickMatch + results.addresses.length + i === activeIdx" [class.inactive]="!pool.active" type="button" role="option" class="dropdown-item">
-        <img class="pool-logo" [src]="'/resources/mining-pools/' + pool.slug + '.svg'" onError="this.src = '/resources/mining-pools/default.svg'" [alt]="'Logo of ' + pool.name + ' mining pool'">
+        <app-pool-logo [pool]="pool" style="position: relative; top: -1px; margin-right: 10px;"></app-pool-logo>
         <ngb-highlight [result]="pool.name" [term]="results.searchText"></ngb-highlight>
       </button>
     </ng-template>

frontend/src/app/components/search-form/search-results/search-results.component.scss

@@ -26,11 +26,3 @@
 .active {
   background-color: var(--active-bg);
 }
-
-.pool-logo {
-  width: 15px;
-  height: 15px;
-  position: relative;
-  top: -1px;
-  margin-right: 10px;
-}

frontend/src/app/components/time/time.component.ts

@@ -35,7 +35,6 @@ export class TimeComponent implements OnInit, OnChanges, OnDestroy {
   @Input() units: string[] = ['year', 'month', 'week', 'day', 'hour', 'minute', 'second'];
   @Input() minUnit: 'year' | 'month' | 'week' | 'day' | 'hour' | 'minute' | 'second' = 'second';
   @Input() fractionDigits: number = 0;
-  @Input() lowercaseStart = false;
 
   constructor(
     private ref: ChangeDetectorRef,
@@ -107,9 +106,6 @@ export class TimeComponent implements OnInit, OnChanges, OnDestroy {
       return $localize`:@@date-base.immediately:Immediately`;
     } else if (seconds < 60) {
       if (this.relative || this.kind === 'since') {
-        if (this.lowercaseStart) {
-          return $localize`:@@date-base.just-now:Just now`.charAt(0).toLowerCase() + $localize`:@@date-base.just-now:Just now`.slice(1);
-        }
         return $localize`:@@date-base.just-now:Just now`;
       } else if (this.kind === 'until' || this.kind === 'within') {
         seconds = 60;

frontend/src/app/components/tracker/tracker.component.html

@@ -75,6 +75,9 @@
                   } @else {
                     <app-time kind="until" [time]="eta.time" [fastRender]="false" [fixedRender]="true"></app-time>
                   }
+                  <!-- @if (!showAccelerationSummary && isMobile && !tx.acceleration && acceleratorAvailable && accelerateCtaType === 'button' && !tx?.acceleration) {
+                    <a class="btn btn-sm accelerate btn-small-height" i18n="transaction.accelerate|Accelerate button label" (click)="onAccelerateClicked()">Accelerate</a>
+                  } -->
                 </span>
               </ng-container>
               <ng-template #etaSkeleton>
@@ -117,71 +120,68 @@
           <div class="spinner-border text-light" style="width: 1em; height: 1em"></div>
         </div>
         <span class="explainer">&nbsp;</span>
+      } @else if (showAccelerationSummary) {
+        <ng-container *ngIf="(ETA$ | async) as eta;">
+          <app-accelerate-checkout
+            *ngIf="(da$ | async) as da;"
+            [cashappEnabled]="cashappEligible"
+            [advancedEnabled]="false"
+            [forceMobile]="true"
+            [tx]="tx"
+            [accelerating]="isAcceleration"
+            [miningStats]="miningStats"
+            [eta]="eta"
+            [scrollEvent]="scrollIntoAccelPreview"
+            (unavailable)="eligibleForAcceleration = false"
+            class="h-100 w-100"
+          ></app-accelerate-checkout>
+        </ng-container>
       } @else {
-        @if (!tx.status?.confirmed && showAccelerationSummary) {
-          <ng-container *ngIf="(ETA$ | async) as eta;">
-            <app-accelerate-checkout
-              *ngIf="(da$ | async) as da;"
-              [cashappEnabled]="cashappEligible"
-              [advancedEnabled]="false"
-              [forceMobile]="true"
-              [tx]="tx"
-              [accelerating]="isAcceleration"
-              [miningStats]="miningStats"
-              [eta]="eta"
-              [scrollEvent]="scrollIntoAccelPreview"
-              (unavailable)="eligibleForAcceleration = false"
-              class="w-100"
-            ></app-accelerate-checkout>
-          </ng-container>
-        }
-        <div class="status-panel d-flex flex-column h-100 w-100 justify-content-center align-items-center" [class.small-status]="!tx.status?.confirmed && showAccelerationSummary">
-          @if (tx?.acceleration && !tx.status?.confirmed) {
-            <div class="progress-icon">
-              <fa-icon [icon]="['fas', 'wand-magic-sparkles']" [fixedWidth]="true"></fa-icon>
-            </div>
-            <span class="explainer" i18n="tracker.explain.accelerated">Your transaction has been accelerated</span>
-          } @else {
-            @switch (trackerStage) {
-              @case ('waiting') {
-                <div class="progress-icon">
-                  <div class="spinner-border text-light" style="width: 1em; height: 1em"></div>
-                </div>
-                <span class="explainer" i18n="tracker.explain.waiting">Waiting for your transaction to appear in the mempool</span>
-              }
-              @case ('pending') {
-                <div class="progress-icon">
-                  <fa-icon [icon]="['fas', 'hourglass-start']" [fixedWidth]="true"></fa-icon>
-                </div>
-                <span class="explainer" i18n="tracker.explain.pending">Your transaction is in the mempool, but it will not be confirmed for some time.</span>
-              }
-              @case ('soon') {
-                <div class="progress-icon">
-                  <fa-icon [icon]="['fas', 'hourglass-half']" [fixedWidth]="true"></fa-icon>
-                </div>
-                <span class="explainer" i18n="tracker.explain.soon">Your transaction is near the top of the mempool, and is expected to confirm soon.</span>
-              }
-              @case ('next') {
-                <div class="progress-icon">
-                  <fa-icon [icon]="['fas', 'hourglass-end']" [fixedWidth]="true"></fa-icon>
-                </div>
-                <span class="explainer" i18n="tracker.explain.next-block">Your transaction is expected to confirm in the next block</span>
-              }
-              @case ('confirmed') {
-                <div class="progress-icon">
-                  <fa-icon [icon]="['fas', 'circle-check']" [fixedWidth]="true"></fa-icon>
-                </div>
-                <span class="explainer" i18n="tracker.explain.confirmed">Your transaction is confirmed!</span>
-              }
-              @case ('replaced') {
-                <div class="progress-icon">
-                  <fa-icon [icon]="['fas', 'timeline']" [fixedWidth]="true"></fa-icon>
-                </div>
-                <span class="explainer" i18n="tracker.explain.replaced">Your transaction has been replaced by a newer version!</span>
-              }
+        @if (tx?.acceleration && !tx.status?.confirmed) {
+          <div class="progress-icon">
+            <fa-icon [icon]="['fas', 'wand-magic-sparkles']" [fixedWidth]="true"></fa-icon>
+          </div>
+          <span class="explainer" i18n="tracker.explain.accelerated">Your transaction has been accelerated</span>
+        } @else {
+          @switch (trackerStage) {
+            @case ('waiting') {
+              <div class="progress-icon">
+                <div class="spinner-border text-light" style="width: 1em; height: 1em"></div>
+              </div>
+              <span class="explainer" i18n="tracker.explain.waiting">Waiting for your transaction to appear in the mempool</span>
+            }
+            @case ('pending') {
+              <div class="progress-icon">
+                <fa-icon [icon]="['fas', 'hourglass-start']" [fixedWidth]="true"></fa-icon>
+              </div>
+              <span class="explainer" i18n="tracker.explain.pending">Your transaction is in the mempool, but it will not be confirmed for some time.</span>
+            }
+            @case ('soon') {
+              <div class="progress-icon">
+                <fa-icon [icon]="['fas', 'hourglass-half']" [fixedWidth]="true"></fa-icon>
+              </div>
+              <span class="explainer" i18n="tracker.explain.soon">Your transaction is near the top of the mempool, and is expected to confirm soon.</span>
+            }
+            @case ('next') {
+              <div class="progress-icon">
+                <fa-icon [icon]="['fas', 'hourglass-end']" [fixedWidth]="true"></fa-icon>
+              </div>
+              <span class="explainer" i18n="tracker.explain.next-block">Your transaction is expected to confirm in the next block</span>
+            }
+            @case ('confirmed') {
+              <div class="progress-icon">
+                <fa-icon [icon]="['fas', 'circle-check']" [fixedWidth]="true"></fa-icon>
+              </div>
+              <span class="explainer" i18n="tracker.explain.confirmed">Your transaction is confirmed!</span>
+            }
+            @case ('replaced') {
+              <div class="progress-icon">
+                <fa-icon [icon]="['fas', 'timeline']" [fixedWidth]="true"></fa-icon>
+              </div>
+              <span class="explainer" i18n="tracker.explain.replaced">Your transaction has been replaced by a newer version!</span>
             }
           }
-        </div>
+        }
       }
     </div>
 

frontend/src/app/components/tracker/tracker.component.scss

@@ -166,7 +166,7 @@
   display: flex;
   flex-direction: column;
   align-items: center;
-  justify-content: start;
+  justify-content: center;
 
   .explainer {
     margin: 0 1em;
@@ -178,15 +178,6 @@
   font-size: clamp(30px, 20vw, 150px);
 }
 
-.status-panel {
-  &.small-status {
-    min-height: 180px;
-    .progress-icon {
-      font-size: clamp(20px, 13vw, 100px);
-    }
-  }
-}
-
 .footer-link {
   display: flex;
   flex-direction: row;

frontend/src/app/components/tracker/tracker.component.ts

@@ -596,9 +596,6 @@ export class TrackerComponent implements OnInit, OnDestroy {
       this.isAccelerated$,
       this.txChanged$,
     ]).pipe(
-      filter(([position, mempoolBlocks, da, isAccelerated]) => {
-        return this.tx && !this.tx?.status?.confirmed && position && this.tx.txid === position.txid;
-      }),
       map(([position, mempoolBlocks, da, isAccelerated]) => {
         return this.etaService.calculateETA(
           this.network,
@@ -731,6 +728,7 @@ export class TrackerComponent implements OnInit, OnDestroy {
     if (!this.txId) {
       return;
     }
+    this.enterpriseService.goal(8);
     this.accelerationFlowCompleted = false;
     if (this.showAccelerationSummary) {
       this.scrollIntoAccelPreview = true;

frontend/src/app/components/transaction/transaction.component.html

@@ -481,7 +481,7 @@
       <td i18n="transaction.first-seen|Transaction first seen">First seen</td>
       <td><i><app-time kind="since" [time]="transactionTime" [fastRender]="true" [showTooltip]="true"></app-time></i></td>
     </tr>
-  } @else if (isLoadingFirstSeen) {
+  } @else {
     <tr>
       <td i18n="transaction.first-seen|Transaction first seen">First seen</td>
       <td><span class="skeleton-loader"></span></td>
@@ -639,7 +639,7 @@
         }
         <td>
           <div class="effective-fee-container">
-            @if (accelerationInfo?.acceleratedFeeRate && (!tx.effectiveFeePerVsize || accelerationInfo.acceleratedFeeRate >= tx.effectiveFeePerVsize || tx.acceleration)) {
+            @if (accelerationInfo?.acceleratedFeeRate && (!tx.effectiveFeePerVsize || accelerationInfo.acceleratedFeeRate >= tx.effectiveFeePerVsize)) {
               <app-fee-rate [fee]="accelerationInfo.acceleratedFeeRate"></app-fee-rate>
             } @else {
               <app-fee-rate [fee]="tx.effectiveFeePerVsize"></app-fee-rate>
@@ -663,7 +663,7 @@
 <ng-template #acceleratingRow>
   <tr>
     <td rowspan="2" colspan="2" style="padding: 0;">
-      <app-active-acceleration-box [tx]="tx" [accelerationInfo]="accelerationInfo" [miningStats]="miningStats" [hasCpfp]="hasCpfp" (toggleCpfp)="showCpfpDetails = !showCpfpDetails" [chartPositionLeft]="isMobile"></app-active-acceleration-box>
+      <app-active-acceleration-box [tx]="tx" [accelerationInfo]="accelerationInfo" [miningStats]="miningStats" [chartPositionLeft]="isMobile"></app-active-acceleration-box>
     </td>
   </tr>
   <tr></tr>
@@ -677,7 +677,7 @@
         @if (pool) {
           <td class="wrap-cell">
             <a placement="bottom" [routerLink]="['/mining/pool' | relativeUrl, pool.slug]" class="badge" style="color: #FFF;padding:0;">
-              <img class="pool-logo" [src]="'/resources/mining-pools/' + pool.slug + '.svg'" onError="this.src = '/resources/mining-pools/default.svg'" [alt]="'Logo of ' + pool.name + ' mining pool'">
+              <app-pool-logo [pool]="pool" style="position: relative; top: -1px; margin-right: 2px;"></app-pool-logo>
               {{ pool.name  }}
             </a>
           </td>

frontend/src/app/components/transaction/transaction.component.ts

@@ -42,7 +42,7 @@ interface Pool {
   slug: string;
 }
 
-export interface TxAuditStatus {
+interface AuditStatus {
   seen?: boolean;
   expected?: boolean;
   added?: boolean;
@@ -100,7 +100,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
   sigops: number | null;
   adjustedVsize: number | null;
   pool: Pool | null;
-  auditStatus: TxAuditStatus | null;
+  auditStatus: AuditStatus | null;
   isAcceleration: boolean = false;
   filters: Filter[] = [];
   showCpfpDetails = false;
@@ -132,8 +132,6 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
   tooltipPosition: { x: number, y: number };
   isMobile: boolean;
   firstLoad = true;
-  waitingForAccelerationInfo: boolean = false;
-  isLoadingFirstSeen = false;
 
   featuresEnabled: boolean;
   segwitEnabled: boolean;
@@ -319,19 +317,11 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
         this.setIsAccelerated();
       }),
       switchMap((blockHeight: number) => {
-        return this.servicesApiService.getAccelerationHistory$({ blockHeight }).pipe(
-          switchMap((accelerationHistory: Acceleration[]) => {
-            if (this.tx.acceleration && !accelerationHistory.length) { // If the just mined transaction was accelerated, but services backend did not return any acceleration data, retry
-              return throwError('retry');
-            }
-            return of(accelerationHistory);
-          }),
-          retry({ count: 3, delay: 2000 }),
-          catchError(() => {
-            return of([]);
-          })
-        );
+        return this.servicesApiService.getAccelerationHistory$({ blockHeight });
       }),
+      catchError(() => {
+        return of([]);
+      })
     ).subscribe((accelerationHistory) => {
       for (const acceleration of accelerationHistory) {
         if (acceleration.txid === this.txId && (acceleration.status === 'completed' || acceleration.status === 'completed_provisional')) {
@@ -340,7 +330,6 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
           acceleration.boost = boostCost;
           this.tx.acceleratedAt = acceleration.added;
           this.accelerationInfo = acceleration;
-          this.waitingForAccelerationInfo = false;
           this.setIsAccelerated();
         }
       }
@@ -375,41 +364,33 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
         const auditAvailable = this.isAuditAvailable(height);
         const isCoinbase = this.tx.vin.some(v => v.is_coinbase);
         const fetchAudit = auditAvailable && !isCoinbase;
-        if (fetchAudit) {
-        // If block audit is already cached, use it to get transaction audit
-          const blockAuditLoaded = this.apiService.getBlockAuditLoaded(hash);
-          if (blockAuditLoaded) {
-            return this.apiService.getBlockAudit$(hash).pipe(
-              map(audit => {
-                const isAdded = audit.addedTxs.includes(txid);
-                const isPrioritized = audit.prioritizedTxs.includes(txid);
-                const isAccelerated = audit.acceleratedTxs.includes(txid);
-                const isConflict = audit.fullrbfTxs.includes(txid);
-                const isExpected = audit.template.some(tx => tx.txid === txid);
-                const firstSeen = audit.template.find(tx => tx.txid === txid)?.time;
-                return {
-                  seen: isExpected || isPrioritized || isAccelerated,
-                  expected: isExpected,
-                  added: isAdded,
-                  prioritized: isPrioritized,
-                  conflict: isConflict,
-                  accelerated: isAccelerated,
-                  firstSeen,
-                };
-              })
-            )
-          } else {
-            return this.apiService.getBlockTxAudit$(hash, txid).pipe(
-              retry({ count: 3, delay: 2000 }),
-              catchError(() => {
-                return of(null);
-              })
-            )
-          }
-        } else {
-          return of(isCoinbase ? { coinbase: true } : null);
-        }
+        return fetchAudit ? this.apiService.getBlockAudit$(hash).pipe(
+          map(audit => {
+            const isAdded = audit.addedTxs.includes(txid);
+            const isPrioritized = audit.prioritizedTxs.includes(txid);
+            const isAccelerated = audit.acceleratedTxs.includes(txid);
+            const isConflict = audit.fullrbfTxs.includes(txid);
+            const isExpected = audit.template.some(tx => tx.txid === txid);
+            const firstSeen = audit.template.find(tx => tx.txid === txid)?.time;
+            return {
+              seen: isExpected || isPrioritized || isAccelerated,
+              expected: isExpected,
+              added: isAdded,
+              prioritized: isPrioritized,
+              conflict: isConflict,
+              accelerated: isAccelerated,
+              firstSeen,
+            };
+          }),
+          retry({ count: 3, delay: 2000 }),
+          catchError(() => {
+            return of(null);
+          })
+        ) : of(isCoinbase ? { coinbase: true } : null);
       }),
+      catchError((e) => {
+        return of(null);
+      })
     ).subscribe(auditStatus => {
       this.auditStatus = auditStatus;
       if (this.auditStatus?.firstSeen) {
@@ -599,7 +580,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
                 bestDescendant: tx.bestDescendant,
               });
               const hasRelatives = !!(tx.ancestors?.length || tx.bestDescendant);
-              this.hasEffectiveFeeRate = hasRelatives || (tx.effectiveFeePerVsize && (Math.abs(tx.effectiveFeePerVsize - tx.feePerVsize) >= 0.1));
+              this.hasEffectiveFeeRate = hasRelatives || (tx.effectiveFeePerVsize && (Math.abs(tx.effectiveFeePerVsize - tx.feePerVsize) > 0.01));
             } else {
               this.fetchCpfp$.next(this.tx.txid);
             }
@@ -627,9 +608,6 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
 
     this.stateService.txConfirmed$.subscribe(([txConfirmed, block]) => {
       if (txConfirmed && this.tx && !this.tx.status.confirmed && txConfirmed === this.tx.txid) {
-        if (this.tx.acceleration) {
-          this.waitingForAccelerationInfo = true;
-        }
         this.tx.status = {
           confirmed: true,
           block_height: block.height,
@@ -747,6 +725,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
     }
 
     document.location.hash = '#accelerate';
+    this.enterpriseService.goal(8);
     this.openAccelerator();
     this.scrollIntoAccelPreview = true;
     return false;
@@ -764,16 +743,8 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
   }
 
   getTransactionTime() {
-    this.isLoadingFirstSeen = true;
     this.apiService
       .getTransactionTimes$([this.tx.txid])
-      .pipe(
-        retry({ count: 2, delay: 2000 }),
-        catchError(() => {
-          this.isLoadingFirstSeen = false;
-          return throwError(() => new Error(''));
-        })
-      )
       .subscribe((transactionTimes) => {
         if (transactionTimes?.length && transactionTimes[0]) {
           this.transactionTime = transactionTimes[0];
@@ -833,7 +804,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
   }
 
   setIsAccelerated(initialState: boolean = false) {
-    this.isAcceleration = ((this.tx.acceleration && (!this.tx.status.confirmed || this.waitingForAccelerationInfo)) || (this.accelerationInfo && this.pool && this.accelerationInfo.pools.some(pool => (pool === this.pool.id))));
+    this.isAcceleration = (this.tx.acceleration || (this.accelerationInfo && this.pool && this.accelerationInfo.pools.some(pool => (pool === this.pool.id))));
     if (this.isAcceleration) {
       if (initialState) {
         this.accelerationFlowCompleted = true;

frontend/src/app/docs/api-docs/api-docs-data.ts

@@ -9017,89 +9017,18 @@ export const restApiDocsData = [
     "effectiveFee": 154,
     "ancestorCount": 1
   },
-  "cost": 1386,
-  "targetFeeRate": 10,
-  "nextBlockFee": 1540,
-  "userBalance": 0,
-  "mempoolBaseFee": 50000,
-  "vsizeFee": 0,
-  "pools": [
-    111,
-    102,
-    112,
-    142,
-    115
-  ],
-  "options": [
-    {
-      "fee": 1500
-    },
-    {
-      "fee": 3000
-    },
-    {
-      "fee": 12500
-    }
-  ],
-  "hasAccess": false,
-  "availablePaymentMethods": {
-    "bitcoin": {
-      "enabled": true,
-      "min": 1000,
-      "max": 10000000
-    },
-    "cashapp": {
-      "enabled": true,
-      "min": 10,
-      "max": 200
-    }
-  },
-  "unavailable": false
+  "cost": 3850,
+  "targetFeeRate": 26,
+  "nextBlockFee": 4004,
+  "userBalance": 99900000,
+  "mempoolBaseFee": 40000,
+  "vsizeFee": 50000,
+  "hasAccess": true
 }`,
         },
       }
     }
   },
-  {
-    options: { officialOnly: true },
-    type: "endpoint",
-    category: "accelerator-public",
-    httpRequestMethod: "POST",
-    fragment: "accelerator-get-invoice",
-    title: "POST Generate Acceleration Invoice",
-    description: {
-      default: "<p>Request a LN invoice to accelerate a transaction.</p>"
-    },
-    urlString: "/v1/services/payments/bitcoin",
-    showConditions: [""],
-    showJsExamples: showJsExamplesDefaultFalse,
-    codeExample: {
-      default: {
-        codeTemplate: {
-          curl: `%{1}" "[[hostname]][[baseNetworkUrl]]/api/v1/services/payments/bitcoin`, //custom interpolation technique handled in replaceCurlPlaceholder()
-          commonJS: ``,
-          esModule: ``
-        },
-        codeSampleMainnet: {
-          esModule: [],
-          commonJS: [],
-          curl: ["product=ee13ebb99632377c15c94980357f674d285ac413452050031ea6dcd3e9b2dc29&amount=12500"],
-          headers: "",
-          response: `[
-  {
-    "btcpayInvoiceId": "4Ww53d7VgSa596jmCFufe7",
-    "btcDue": "0.000625",
-    "addresses": {
-      "BTC": "bc1qcvqx2kr5mktd7gvym0atrrx0sn27mwv5kkghl3m78kegndm5t8ksvcqpja",
-      "BTC_LNURLPAY": null,
-      "BTC_LightningLike": "lnbc625u1pngl0wzpp56j7cqghsw2y5q7vdu9shmpxgpzsx4pqra4wcm9vdnvqegutplk2qdxj2pskjepqw3hjqnt9d4cx7mmvypqkxcm9d3jhyct5daezq2z0wfjx2u3qf9zr5grpvd3k2mr9wfshg6t0dckk2ef3xdjkyc3e8ymrxv3nxumkxvf4vvungwfcxqen2dmxxcmngepj8q6kzce5xyengdfjxq6nqvpnx9jkzdnyvdjrxefevgexgcej8yknzdejxqmrjd3jx5mrgdpj9ycqzpuxqrpr5sp58593dzj2uauaj3afa7x47qeam8k9yyqrh9qasj2ssdzstew6qv3q9qxpqysgqj8qshfkxmj0gfkly5xfydysvsx55uhnc6fgpw66uf6hl8leu07454axe2kq0q788yysg8guel2r36d6f75546nkhmdcmec4mmlft8dsq62rnsj"
-    }
-  }
-]`,
-        },
-      }
-    }
-  },
   {
     options: { officialOnly: true },
     type: "endpoint",
@@ -9190,18 +9119,14 @@ export const restApiDocsData = [
     "txid": "d7e1796d8eb4a09d4e6c174e36cfd852f1e6e6c9f7df4496339933cd32cbdd1d",
     "status": "completed",
     "added": 1707421053,
-    "lastUpdated": 1719134667,
+    "lastUpdated": 1707422952,
     "effectiveFee": 146,
     "effectiveVsize": 141,
     "feeDelta": 14000,
     "blockHash": "00000000000000000000482f0746d62141694b9210a813b97eb8445780a32003",
     "blockHeight": 829559,
-    "bidBoost": 3239,
-    "boostVersion": "v1",
-    "pools": [
-      111
-    ],
-    "minedByPoolUniqueId": 111
+    "bidBoost": 6102,
+    "pools": [111]
   }
 ]`,
         },
@@ -9304,7 +9229,7 @@ export const restApiDocsData = [
     category: "accelerator-private",
     httpRequestMethod: "POST",
     fragment: "accelerator-accelerate",
-    title: "POST Accelerate A Transaction (Pro)",
+    title: "POST Accelerate A Transaction",
     description: {
       default: "<p>Sends a request to accelerate a transaction.</p>"
     },

frontend/src/app/docs/api-docs/api-docs.component.html

@@ -194,7 +194,7 @@
 </ng-template>
 
 <ng-template type="how-to-get-transaction-confirmed-quickly">
-  <p>To get your transaction confirmed quicker, you will need to increase its effective feerate.</p><p>If your transaction was created with RBF enabled, your stuck transaction can simply be replaced with a new one that has a higher fee. Otherwise, if you control any of the stuck transaction's outputs, you can use CPFP to increase your stuck transaction's effective feerate.</p><p>If you are not sure how to do RBF or CPFP, work with the tool you used to make the transaction (wallet software, exchange company, etc).</p><p>Another option to get your transaction confirmed more quickly is <a [href]="[ isMempoolSpaceBuild ? '/accelerator' : 'https://mempool.space/accelerator']" [target]="isMempoolSpaceBuild ? '' : 'blank'">Mempool Accelerator™</a>.</p>
+  <p>To get your transaction confirmed quicker, you will need to increase its effective feerate.</p><p>If your transaction was created with RBF enabled, your stuck transaction can simply be replaced with a new one that has a higher fee. Otherwise, if you control any of the stuck transaction's outputs, you can use CPFP to increase your stuck transaction's effective feerate.</p><p>If you are not sure how to do RBF or CPFP, work with the tool you used to make the transaction (wallet software, exchange company, etc).</p><p *ngIf="officialMempoolInstance">Another option to get your transaction confirmed more quickly is Mempool Accelerator™. This service is still in development, but you can <a href="https://mempool.space/accelerator">sign up for the waitlist</a> to be notified when it's ready.</p>
 </ng-template>
 
 <ng-template type="how-prevent-stuck-transaction">

frontend/src/app/docs/api-docs/api-docs.component.ts

@@ -33,7 +33,6 @@ export class ApiDocsComponent implements OnInit, AfterViewInit {
   showMobileEnterpriseUpsell: boolean = true;
   timeLtrSubscription: Subscription;
   timeLtr: boolean = this.stateService.timeLtr.value;
-  isMempoolSpaceBuild = this.stateService.isMempoolSpaceBuild;
 
   @ViewChildren(FaqTemplateDirective) faqTemplates: QueryList<FaqTemplateDirective>;
   dict = {};

frontend/src/app/graphs/graphs.routing.module.ts

@@ -50,7 +50,7 @@ const routes: Routes = [
       },
       {
         path: 'acceleration',
-        data: { networks: ['bitcoin'], networkSpecific: true, onlySubnet: [''] },
+        data: { networks: ['bitcoin'] },
         component: StartComponent,
         children: [
           {
@@ -61,7 +61,7 @@ const routes: Routes = [
       },
       {
         path: 'acceleration/list/:page',
-        data: { networks: ['bitcoin'], networkSpecific: true, onlySubnet: [''] },
+        data: { networks: ['bitcoin'] },
         component: AccelerationsListComponent,
       },
       {
@@ -140,7 +140,7 @@ const routes: Routes = [
           },
           {
             path: 'acceleration/fees',
-            data: { networks: ['bitcoin'], networkSpecific: true, onlySubnet: [''] },
+            data: { networks: ['bitcoin'] },
             component: AccelerationFeesGraphComponent,
           },
           {

frontend/src/app/interfaces/node-api.interface.ts

@@ -411,7 +411,7 @@ export interface Acceleration {
 }
 
 export interface AccelerationHistoryParams {
-  status?: string; // Single status or comma separated list of status
+  status?: string;
   timeframe?: string;
   poolUniqueId?: number;
   blockHash?: string;

frontend/src/app/interfaces/services.interface.ts

@@ -5,7 +5,6 @@ export type MenuItem = {
   i18n: string;
   faIcon: IconName;
   link: string;
-  isExternal?: boolean;
 };
 export type MenuGroup = {
   title: string;

frontend/src/app/lightning/lightning-dashboard/lightning-dashboard.component.scss

@@ -1,6 +1,6 @@
 .dashboard-container {
   text-align: center;
-  margin-top: 18px;
+  margin-top: 0.5rem;
   @media (min-width: 992px) {
     padding-bottom: 0px;
   }

frontend/src/app/services/api.service.ts

@@ -8,7 +8,6 @@ import { Transaction } from '../interfaces/electrs.interface';
 import { Conversion } from './price.service';
 import { StorageService } from './storage.service';
 import { WebsocketResponse } from '../interfaces/websocket.interface';
-import { TxAuditStatus } from '../components/transaction/transaction.component';
 
 @Injectable({
   providedIn: 'root'
@@ -18,7 +17,6 @@ export class ApiService {
   private apiBasePath: string; // network path is /testnet, etc. or '' for mainnet
 
   private requestCache = new Map<string, { subject: BehaviorSubject<any>, expiry: number }>;
-  public blockAuditLoaded: { [hash: string]: boolean } = {};
 
   constructor(
     private httpClient: HttpClient,
@@ -371,18 +369,11 @@ export class ApiService {
   }
 
   getBlockAudit$(hash: string) : Observable<BlockAudit> {
-    this.setBlockAuditLoaded(hash);
     return this.httpClient.get<BlockAudit>(
       this.apiBaseUrl + this.apiBasePath + `/api/v1/block/${hash}/audit-summary`
     );
   }
 
-  getBlockTxAudit$(hash: string, txid: string) : Observable<TxAuditStatus> {
-    return this.httpClient.get<TxAuditStatus>(
-      this.apiBaseUrl + this.apiBasePath + `/api/v1/block/${hash}/tx/${txid}/audit`
-    );
-  }
-
   getBlockAuditScores$(from: number): Observable<AuditScore[]> {
     return this.httpClient.get<AuditScore[]>(
       this.apiBaseUrl + this.apiBasePath + `/api/v1/mining/blocks/audit/scores` +
@@ -535,13 +526,4 @@ export class ApiService {
       this.apiBaseUrl + this.apiBasePath + '/api/v1/accelerations/total' + (queryString?.length ? '?' + queryString : '')
     );
   }
-
-  // Cache methods
-  async setBlockAuditLoaded(hash: string) {
-    this.blockAuditLoaded[hash] = true;
-  }
-
-  getBlockAuditLoaded(hash) {
-    return this.blockAuditLoaded[hash];
-  }
 }

frontend/src/app/services/cache.service.ts

@@ -124,7 +124,6 @@ export class CacheService {
   resetBlockCache() {
     this.blockHashCache = {};
     this.blockCache = {};
-    this.apiService.blockAuditLoaded = {};
     this.blockLoading = {};
     this.copiesInBlockQueue = {};
     this.blockPriorities = [];

frontend/src/app/services/navigation.service.ts

@@ -3,7 +3,6 @@ import { Router, NavigationEnd, ActivatedRouteSnapshot } from '@angular/router';
 import { BehaviorSubject } from 'rxjs';
 import { filter, map } from 'rxjs/operators';
 import { StateService } from './state.service';
-import { RelativeUrlPipe } from '../shared/pipes/relative-url/relative-url.pipe';
 
 @Injectable({
   providedIn: 'root'
@@ -31,30 +30,15 @@ export class NavigationService {
   constructor(
     private stateService: StateService,
     private router: Router,
-    private relativeUrlPipe: RelativeUrlPipe,
   ) {
     this.router.events.pipe(
       filter(event => event instanceof NavigationEnd),
       map(() => this.router.routerState.snapshot.root),
     ).subscribe((state) => {
-      if (this.enforceSubnetRestrictions(state)) {
-        this.updateSubnetPaths(state);
-      }
+      this.updateSubnetPaths(state);
     });
   }
 
-  enforceSubnetRestrictions(root: ActivatedRouteSnapshot): boolean {
-    let route = root;
-    while (route) {
-      if (route.data.onlySubnet && !route.data.onlySubnet.includes(this.stateService.network)) {
-        this.router.navigate([this.relativeUrlPipe.transform('')]);
-        return false;
-      }
-      route = route.firstChild;
-    }
-    return true;
-  }
-
   // For each network (bitcoin/liquid), find and save the longest url path compatible with the current route
   updateSubnetPaths(root: ActivatedRouteSnapshot): void {
     let path = '';

frontend/src/app/services/services-api.service.ts

@@ -181,7 +181,7 @@ export class ServicesApiServices {
     return this.httpClient.get<any[]>(`${this.stateService.env.SERVICES_API}/payments/bitcoin/invoice?id=${invoiceId}`);
   }
 
-  getPaymentStatus$(orderId: string): Observable<any> {
-    return this.httpClient.get<any>(`${this.stateService.env.SERVICES_API}/payments/bitcoin/check?order_id=${orderId}`, { observe: 'response' });
+  getPaymentStatus$(orderId: string): Observable<any[]> {
+    return this.httpClient.get<any[]>(`${this.stateService.env.SERVICES_API}/payments/bitcoin/check?order_id=${orderId}`);
   }
 }

frontend/src/app/shared/common.utils.ts

@@ -181,17 +181,4 @@ export function uncompressDeltaChange(delta: MempoolBlockDeltaCompressed): Mempo
       acc: !!tx[3],
     }))
   };
-}
-
-export function insecureRandomUUID(): string {
-  const hexDigits = '0123456789abcdef';
-  const uuidLengths = [8, 4, 4, 4, 12];
-  let uuid = '';
-  for (const length of uuidLengths) {
-      for (let i = 0; i < length; i++) {
-          uuid += hexDigits[Math.floor(Math.random() * 16)];
-      }
-      uuid += '-';
-  }
-  return uuid.slice(0, -1);
-}
+}

frontend/src/app/shared/components/pool-logo/pool-logo.component.html

@@ -0,0 +1,11 @@
+<img
+  #poolImg
+  class="pool-logo"
+  [width]="width"
+  [height]="height"
+  [style]="{ width: width + 'px', maxWidth: width + 'px', height: height + 'px' }"
+  [src]="'/resources/mining-pools/' + pool.slug + '.svg'"
+  onLoad="this.style.opacity = 1;"
+  onError="this.src = 'data:image/svg+xml;base64,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'"
+  [alt]="'Logo of ' + pool.name + ' mining pool'"
+>

frontend/src/app/shared/components/pool-logo/pool-logo.component.scss

@@ -0,0 +1,6 @@
+.pool-logo {
+  position: relative;
+  overflow: hidden;
+  opacity: 0;
+  color: transparent;
+}

frontend/src/app/shared/components/pool-logo/pool-logo.component.ts

@@ -0,0 +1,26 @@
+import { Component, ElementRef, Input, OnChanges, SimpleChanges, ViewChild } from '@angular/core';
+import { nextTick } from 'process';
+
+@Component({
+  selector: 'app-pool-logo',
+  templateUrl: './pool-logo.component.html',
+  styleUrls: ['./pool-logo.component.scss']
+})
+export class PoolLogoComponent implements OnChanges{
+  @Input() pool: { slug: string, name: string };
+  @Input() width: number = 15;
+  @Input() height: number = 15;
+
+  @ViewChild('poolImg') img: ElementRef<HTMLImageElement>;
+
+  ngOnChanges(changes: SimpleChanges): void {
+    if (changes.pool) {
+      if (this.img?.nativeElement) {
+        this.img.nativeElement.style.opacity = '0';
+        setTimeout(() => {
+          this.img.nativeElement.style.opacity = '1';
+        }, 50);
+      }
+    }
+  }
+}

frontend/src/app/shared/shared.module.ts

@@ -88,6 +88,7 @@ import { BtcComponent } from './components/btc/btc.component';
 import { FeeRateComponent } from './components/fee-rate/fee-rate.component';
 import { AddressTypeComponent } from './components/address-type/address-type.component';
 import { TruncateComponent } from './components/truncate/truncate.component';
+import { PoolLogoComponent } from './components/pool-logo/pool-logo.component';
 import { SearchResultsComponent } from '../components/search-form/search-results/search-results.component';
 import { TimestampComponent } from './components/timestamp/timestamp.component';
 import { ConfirmationsComponent } from './components/confirmations/confirmations.component';
@@ -201,6 +202,7 @@ import { OnlyVsizeDirective, OnlyWeightDirective } from './components/weight-dir
     FeeRateComponent,
     AddressTypeComponent,
     TruncateComponent,
+    PoolLogoComponent,
     SearchResultsComponent,
     TimestampComponent,
     ConfirmationsComponent,
@@ -340,6 +342,7 @@ import { OnlyVsizeDirective, OnlyWeightDirective } from './components/weight-dir
     FeeRateComponent,
     AddressTypeComponent,
     TruncateComponent,
+    PoolLogoComponent,
     SearchResultsComponent,
     TimestampComponent,
     ConfirmationsComponent,