Generate mining basic pool ranking (sorted by block found) for a specified timeframe

backend/src/api/bitcoin/bitcoin-api.ts

@@ -115,6 +115,11 @@ class BitcoinApi implements AbstractBitcoinApi {
     return outSpends;
   }
 
+  $getEstimatedHashrate(blockHeight: number): Promise<number> {
+    // 120 is the default block span in Core
+    return this.bitcoindClient.getNetworkHashPs(120, blockHeight);
+  }
+
   protected async $convertTransaction(transaction: IBitcoinApi.Transaction, addPrevout: boolean): Promise<IEsploraApi.Transaction> {
     let esploraTransaction: IEsploraApi.Transaction = {
       txid: transaction.txid,

backend/src/api/blocks.ts

@@ -115,7 +115,7 @@ class Blocks {
    */
   private async $findBlockMiner(txMinerInfo: TransactionMinerInfo | undefined) : Promise<PoolTag> {
     if (txMinerInfo === undefined) {
-      return poolsRepository.getUnknownPool();
+      return await poolsRepository.$getUnknownPool();
     }
 
     const asciiScriptSig = transactionUtils.hex2ascii(txMinerInfo.vin[0].scriptsig);
@@ -139,7 +139,7 @@ class Blocks {
       }
     }
 
-    return poolsRepository.getUnknownPool();
+    return await poolsRepository.$getUnknownPool();
   }
 
   /**
@@ -147,7 +147,7 @@ class Blocks {
    */
   public async $generateBlockDatabase() {
     let currentBlockHeight = await bitcoinApi.$getBlockHeightTip();
-    let maxBlocks = 100; // tmp
+    let maxBlocks = 1008*2; // tmp
 
     while (currentBlockHeight-- > 0 && maxBlocks-- > 0) {
       if (await blocksRepository.$isBlockAlreadyIndexed(currentBlockHeight)) {

backend/src/api/mining.ts

@@ -0,0 +1,53 @@
+import { PoolInfo, PoolStats } from "../mempool.interfaces";
+import BlocksRepository, { EmptyBlocks } from "../repositories/BlocksRepository";
+import PoolsRepository from "../repositories/PoolsRepository";
+import bitcoinClient from "./bitcoin/bitcoin-client";
+import BitcoinApi from "./bitcoin/bitcoin-api";
+
+class Mining {
+  private bitcoinApi: BitcoinApi;
+
+  constructor() {
+    this.bitcoinApi = new BitcoinApi(bitcoinClient);
+  }
+
+  /**
+   * Generate high level overview of the pool ranks and general stats
+   */
+  public async $getPoolsStats(interval: string = "100 YEAR") : Promise<object> {
+    let poolsStatistics = {};
+
+    const lastBlockHashrate = await this.bitcoinApi.$getEstimatedHashrate(717960);
+    const poolsInfo: PoolInfo[] = await PoolsRepository.$getPoolsInfo(interval);
+    const blockCount: number = await BlocksRepository.$blockCount(interval);
+    const emptyBlocks: EmptyBlocks[] = await BlocksRepository.$countEmptyBlocks(interval);
+
+    let poolsStats: PoolStats[] = [];
+    let rank = 1;
+
+    poolsInfo.forEach((poolInfo: PoolInfo) => {
+      let poolStat: PoolStats = {
+        poolId: poolInfo.poolId, // mysql row id
+        name: poolInfo.name,
+        link: poolInfo.link,
+        blockCount: poolInfo.blockCount,
+        rank: rank++,
+        emptyBlocks: 0, 
+      }
+      for (let i = 0; i < emptyBlocks.length; ++i) {
+        if (emptyBlocks[i].poolId === poolInfo.poolId) {
+          poolStat.emptyBlocks++;
+        }
+      }
+      poolsStats.push(poolStat);
+    })
+
+    poolsStatistics["blockCount"] = blockCount;
+    poolsStatistics["poolsStats"] = poolsStats;
+    poolsStatistics["lastEstimatedHashrate"] = lastBlockHashrate;
+
+    return poolsStatistics;
+  }
+}
+
+export default new Mining();