Label channel closes

frontend/src/app/components/address-labels/address-labels.component.ts

@@ -34,7 +34,8 @@ export class AddressLabelsComponent implements OnChanges {
   }
 
   handleChannel() {
-    this.label = `Channel open: ${this.channel.node_left.alias} <> ${this.channel.node_right.alias}`;
+    const type = this.vout ? 'open' : 'close';
+    this.label = `Channel ${type}: ${this.channel.node_left.alias} <> ${this.channel.node_right.alias}`;
   }
 
   handleVin() {

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

@@ -77,7 +77,7 @@
                           {{ vin.prevout.scriptpubkey_type?.toUpperCase() }}
                         </ng-template>
                         <div>
-                          <app-address-labels [vin]="vin"></app-address-labels>
+                          <app-address-labels [vin]="vin" [channel]="channels && channels.inputs[i] || null"></app-address-labels>
                         </div>
                       </ng-template>
                     </ng-container>
@@ -172,7 +172,7 @@
                     </span>
                   </a>
                   <div>
-                    <app-address-labels [vout]="vout" [channel]="channels && channels[i] && channels[i].transaction_vout === vindex ? channels[i] : null"></app-address-labels>
+                    <app-address-labels [vout]="vout" [channel]="channels && channels.outputs[i] && channels.outputs[i].transaction_vout === vindex ? channels.outputs[i] : null"></app-address-labels>
                   </div>
                   <ng-template #scriptpubkey_type>
                     <ng-template [ngIf]="vout.pegout" [ngIfElse]="defaultscriptpubkey_type">

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

@@ -36,7 +36,7 @@ export class TransactionsListComponent implements OnInit, OnChanges {
   showDetails$ = new BehaviorSubject<boolean>(false);
   outspends: Outspend[][] = [];
   assetsMinimal: any;
-  channels: any[];
+  channels: { inputs: any[], outputs: any[] };
 
   constructor(
     public stateService: StateService,

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

@@ -232,12 +232,12 @@ export class ApiService {
     return this.httpClient.get<RewardStats>(this.apiBaseUrl + this.apiBasePath + `/api/v1/mining/reward-stats/${blockCount}`);
   }
 
-  getChannelByTxIds$(txIds: string[]): Observable<any[]> {
+  getChannelByTxIds$(txIds: string[]): Observable<{ inputs: any[], outputs: any[] }> {
     let params = new HttpParams();
     txIds.forEach((txId: string) => {
       params = params.append('txId[]', txId);
     });
-    return this.httpClient.get<any[]>(this.apiBaseUrl + this.apiBasePath + '/lightning/api/v1/channels/txids/', { params });
+    return this.httpClient.get<{ inputs: any[], outputs: any[] }>(this.apiBaseUrl + this.apiBasePath + '/lightning/api/v1/channels/txids/', { params });
   }
 
   lightningSearch$(searchText: string): Observable<any[]> {

lightning-backend/src/api/explorer/channels.api.ts

@@ -74,7 +74,7 @@ class ChannelsApi {
   public async $getChannelsByTransactionId(transactionIds: string[]): Promise<any[]> {
     try {
       transactionIds = transactionIds.map((id) => '\'' + id + '\'');
-      const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.* FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key WHERE channels.transaction_id IN (${transactionIds.join(', ')})`;
+      const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.* FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key WHERE channels.transaction_id IN (${transactionIds.join(', ')}) OR channels.closing_transaction_id IN (${transactionIds.join(', ')})`;
       const [rows]: any = await DB.query(query);
       const channels = rows.map((row) => this.convertChannel(row));
       return channels;

lightning-backend/src/api/explorer/channels.routes.ts

@@ -67,17 +67,27 @@ class ChannelsRoutes {
         }
       }
       const channels = await channelsApi.$getChannelsByTransactionId(txIds);
-      const result: any[] = [];
+      const inputs: any[] = [];
+      const outputs: any[] = [];
       for (const txid of txIds) {
-        const foundChannel = channels.find((channel) => channel.transaction_id === txid);
-        if (foundChannel) {
-          result.push(foundChannel);
+        const foundChannelInputs = channels.find((channel) => channel.closing_transaction_id === txid);
+        if (foundChannelInputs) {
+          inputs.push(foundChannelInputs);
         } else {
-          result.push(null);
+          inputs.push(null);
+        }
+        const foundChannelOutputs = channels.find((channel) => channel.transaction_id === txid);
+        if (foundChannelOutputs) {
+          outputs.push(foundChannelOutputs);
+        } else {
+          outputs.push(null);
         }
       }
 
-      res.json(result);
+      res.json({
+        inputs: inputs,
+        outputs: outputs,
+      });
     } catch (e) {
       res.status(500).send(e instanceof Error ? e.message : e);
     }

lightning-backend/src/database-migration.ts

@@ -236,7 +236,8 @@ class DatabaseMigration {
       KEY node2_public_key (node2_public_key),
       KEY status (status),
       KEY short_id (short_id),
-      KEY transaction_id (transaction_id)
+      KEY transaction_id (transaction_id),
+      KEY closing_transaction_id (closing_transaction_id)
     ) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
   }