Index new hashrates once every 24 hours

backend/src/api/database-migration.ts

@@ -261,6 +261,10 @@ class DatabaseMigration {
       }
     }
 
+    if (version < 7) {
+      queries.push(`INSERT INTO state(name, number, string) VALUES ('last_hashrates_indexing', 0, NULL)`);
+    }
+
     return queries;
   }
 

backend/src/api/mining.ts

@@ -14,7 +14,7 @@ class Mining {
   /**
    * Generate high level overview of the pool ranks and general stats
    */
-  public async $getPoolsStats(interval: string | null) : Promise<object> {
+  public async $getPoolsStats(interval: string | null): Promise<object> {
     const poolsStatistics = {};
 
     const poolsInfo: PoolInfo[] = await PoolsRepository.$getPoolsInfo(interval);
@@ -30,8 +30,8 @@ class Mining {
         link: poolInfo.link,
         blockCount: poolInfo.blockCount,
         rank: rank++,
-        emptyBlocks: 0, 
-      }
+        emptyBlocks: 0
+      };
       for (let i = 0; i < emptyBlocks.length; ++i) {
         if (emptyBlocks[i].poolId === poolInfo.poolId) {
           poolStat.emptyBlocks++;
@@ -84,32 +84,41 @@ class Mining {
     return {
       adjustments: difficultyAdjustments,
       oldestIndexedBlockTimestamp: oldestBlock.getTime(),
-    }
+    };
   }
 
   /**
    * Return the historical hashrates and oldest indexed block timestamp
    */
-   public async $getHistoricalHashrates(interval: string | null): Promise<object> {
+  public async $getHistoricalHashrates(interval: string | null): Promise<object> {
     const hashrates = await HashratesRepository.$get(interval);
     const oldestBlock = new Date(await BlocksRepository.$oldestBlockTimestamp());
 
     return {
       hashrates: hashrates,
       oldestIndexedBlockTimestamp: oldestBlock.getTime(),
-    }
+    };
   }
 
   /**
-   * 
+   * Generate daily hashrate data
    */
-  public async $generateNetworkHashrateHistory() : Promise<void> {
+  public async $generateNetworkHashrateHistory(): Promise<void> {
+    // We only run this once a day
+    const latestTimestamp = await HashratesRepository.$getLatestRunTimestamp();
+    const now = new Date().getTime() / 1000;
+    if (now - latestTimestamp < 86400) {
+      return;
+    }
+
+    logger.info(`Indexing hashrates`);
+
     if (this.hashrateIndexingStarted) {
       return;
     }
     this.hashrateIndexingStarted = true;
 
-    const totalIndexed = await BlocksRepository.$blockCount(null, null);
+    const oldestIndexedBlockHeight = await BlocksRepository.$getOldestIndexedBlockHeight();
     const indexedTimestamp = (await HashratesRepository.$get(null)).map(hashrate => hashrate.timestamp);
 
     const genesisTimestamp = 1231006505; // bitcoin-cli getblock 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
@@ -128,16 +137,18 @@ class Mining {
         null, fromTimestamp, toTimestamp
       );
 
-      let lastBlockHashrate = 0;
-      if (blockStats.blockCount > 0) {
-        lastBlockHashrate = await bitcoinClient.getNetworkHashPs(blockStats.blockCount,
-          blockStats.lastBlockHeight);
+      if (blockStats.blockCount === 0) { // We are done indexing, no blocks left
+        break;
       }
 
-      if (toTimestamp % 864000 === 0) {
-        const progress = Math.round((totalIndexed - blockStats.lastBlockHeight) / totalIndexed * 100);
+      let lastBlockHashrate = 0;
+      lastBlockHashrate = await bitcoinClient.getNetworkHashPs(blockStats.blockCount,
+        blockStats.lastBlockHeight);
+
+      if (toTimestamp % 864000 === 0) { // Log every 10 days during initial indexing
         const formattedDate = new Date(fromTimestamp * 1000).toUTCString();
-        logger.debug(`Counting blocks and hashrate for ${formattedDate}. Progress: ${progress}%`);
+        const blocksLeft = blockStats.lastBlockHeight - oldestIndexedBlockHeight;
+        logger.debug(`Counting blocks and hashrate for ${formattedDate}. ${blocksLeft} blocks left`);
       }
 
       await HashratesRepository.$saveDailyStat({
@@ -149,6 +160,9 @@ class Mining {
       toTimestamp -= 86400;
     }
 
+    await HashratesRepository.$setLatestRunTimestamp();
+    this.hashrateIndexingStarted = false;
+
     logger.info(`Hashrates indexing completed`);
   }
 

backend/src/repositories/BlocksRepository.ts

@@ -281,6 +281,13 @@ class BlocksRepository {
 
     return rows;
   }
+
+  public async $getOldestIndexedBlockHeight(): Promise<number> {
+    const connection = await DB.pool.getConnection();
+    const [rows]: any[] = await connection.query(`SELECT MIN(height) as minHeight FROM blocks`);
+    connection.release();
+    return rows[0].minHeight;
+  }
 }
 
 export default new BlocksRepository();

backend/src/repositories/HashratesRepository.ts

@@ -43,11 +43,28 @@ class HashratesRepository {
       query += ` WHERE hashrate_timestamp BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()`;
     }
 
+    query += ` ORDER by hashrate_timestamp DESC`;
+
     const [rows]: any[] = await connection.query(query);
     connection.release();
 
     return rows;
   }
+
+  public async $setLatestRunTimestamp() {
+    const connection = await DB.pool.getConnection();
+    const query = `UPDATE state SET number = ? WHERE name = 'last_hashrates_indexing'`;
+    await connection.query<any>(query, [Math.round(new Date().getTime() / 1000)]);
+    connection.release();
+  }
+
+  public async $getLatestRunTimestamp(): Promise<number> {
+    const connection = await DB.pool.getConnection();
+    const query = `SELECT number FROM state WHERE name = 'last_hashrates_indexing'`;
+    const [rows] = await connection.query<any>(query);
+    connection.release();
+    return rows[0]['number'];
+  }
 }
 
 export default new HashratesRepository();

frontend/src/app/components/difficulty-chart/difficulty-chart.component.ts

@@ -134,17 +134,18 @@ export class DifficultyChartComponent implements OnInit {
           }
         }
       },
-      series: [
-        {
-          data: data,
-          type: 'line',
-          smooth: false,
-          lineStyle: {
-            width: 3,
-          },
-          areaStyle: {}
+      series: {
+        showSymbol: false,
+        data: data,
+        type: 'line',
+        smooth: false,
+        lineStyle: {
+          width: 2,
         },
-      ],
+        areaStyle: {
+          opacity: 0.25
+        },
+      },
     };
   }
 

frontend/src/app/components/hashrate-chart/hashrate-chart.component.html

@@ -4,50 +4,29 @@
   <div class="text-center loadingGraphs" *ngIf="isLoading">
     <div class="spinner-border text-light"></div>
   </div>
-
-  <div class="card-header mb-0 mb-lg-4" [style]="widget ? 'display:none' : ''">
-    <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(hashrateObservable$ | async) as diffChanges">
+  
+  <div class="card-header mb-0 mb-lg-4 mt-3" [style]="widget ? 'display:none' : ''">
+    <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(hashrateObservable$ | async) as hashrates">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">
-        <label ngbButtonLabel class="btn-primary btn-sm" [routerLink]="['/mining/hashrate' | relativeUrl]" *ngIf="diffChanges.availableTimespanDay >= 90">
-          <input ngbButton type="radio" [value]="'3m'" fragment="3m"> 3M
+        <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="hashrates.availableTimespanDay >= 90">
+          <input ngbButton type="radio" [value]="'3m'"> 3M
         </label>
-        <label ngbButtonLabel class="btn-primary btn-sm" [routerLink]="['/mining/hashrate' | relativeUrl]" *ngIf="diffChanges.availableTimespanDay >= 180">
-          <input ngbButton type="radio" [value]="'6m'" fragment="6m"> 6M
+        <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="hashrates.availableTimespanDay >= 180">
+          <input ngbButton type="radio" [value]="'6m'"> 6M
         </label>
-        <label ngbButtonLabel class="btn-primary btn-sm" [routerLink]="['/mining/hashrate' | relativeUrl]" *ngIf="diffChanges.availableTimespanDay >= 365">
-          <input ngbButton type="radio" [value]="'1y'" fragment="1y"> 1Y
+        <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="hashrates.availableTimespanDay >= 365">
+          <input ngbButton type="radio" [value]="'1y'"> 1Y
         </label>
-        <label ngbButtonLabel class="btn-primary btn-sm" [routerLink]="['/mining/hashrate' | relativeUrl]" *ngIf="diffChanges.availableTimespanDay >= 730">
-          <input ngbButton type="radio" [value]="'2y'" fragment="2y"> 2Y
+        <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="hashrates.availableTimespanDay >= 730">
+          <input ngbButton type="radio" [value]="'2y'"> 2Y
         </label>
-        <label ngbButtonLabel class="btn-primary btn-sm" [routerLink]="['/mining/hashrate' | relativeUrl]" *ngIf="diffChanges.availableTimespanDay >= 1095">
-          <input ngbButton type="radio" [value]="'3y'" fragment="3y"> 3Y
+        <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="hashrates.availableTimespanDay >= 1095">
+          <input ngbButton type="radio" [value]="'3y'"> 3Y
         </label>
         <label ngbButtonLabel class="btn-primary btn-sm">
-          <input ngbButton type="radio" [value]="'all'" [routerLink]="['/mining/hashrate' | relativeUrl]" fragment="all"> ALL
+          <input ngbButton type="radio" [value]="'all'"> ALL
         </label>
       </div>
     </form>
   </div>
-
-  <!-- <table class="table table-borderless table-sm text-center" *ngIf="!widget">
-    <thead>
-      <tr>
-        <th i18n="mining.rank">Block</th>
-        <th i18n="block.timestamp">Timestamp</th>
-        <th i18n="mining.hashrate">Difficulty</th>
-        <th i18n="mining.change">Change</th>
-      </tr>
-    </thead>
-    <tbody *ngIf="(hashrateObservable$ | async) as diffChanges">
-      <tr *ngFor="let diffChange of diffChanges.data">
-        <td><a [routerLink]="['/block' | relativeUrl, diffChange.height]">{{ diffChange.height }}</a></td>
-        <td>&lrm;{{ diffChange.timestamp * 1000 | date:'yyyy-MM-dd HH:mm' }}</td>
-        <td class="d-none d-md-block">{{ formatNumber(diffChange.hashrate, locale, '1.2-2') }}</td>
-        <td class="d-block d-md-none">{{ diffChange.difficultyShorten }}</td>
-        <td [style]="diffChange.change >= 0 ? 'color: #42B747' : 'color: #B74242'">{{ formatNumber(diffChange.change, locale, '1.2-2') }}%</td>
-      </tr>
-    </tbody>
-  </table> -->
-
 </div>

frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts

@@ -66,15 +66,15 @@ export class HashrateChartComponent implements OnInit {
                 };
               }),
             );
-          }),
-          share()
-        );
+        }),
+        share()
+      );
   }
 
   prepareChartOptions(data) {
     this.chartOptions = {
       title: {
-        text: this.widget? '' : $localize`:@@mining.hashrate:Hashrate`,
+        text: this.widget ? '' : $localize`:@@mining.hashrate:Hashrate`,
         left: 'center',
         textStyle: {
           color: '#FFF',
@@ -102,7 +102,7 @@ export class HashrateChartComponent implements OnInit {
               giga: Math.pow(10, 9),
               mega: Math.pow(10, 6),
               kilo: Math.pow(10, 3),
-            }
+            };
 
             let selectedPowerOfTen = { divider: powerOfTen.exa, unit: 'E' };
             if (val < powerOfTen.mega) {
@@ -135,9 +135,11 @@ export class HashrateChartComponent implements OnInit {
         type: 'line',
         smooth: false,
         lineStyle: {
-          width: 3,
+          width: 2,
+        },
+        areaStyle: {
+          opacity: 0.25
         },
-        areaStyle: {},
       },
       dataZoom: this.widget ? null : [{
         type: 'inside',