mempool/frontend/src/app/components/balance-widget/balance-widget.component.ts
2024-04-26 19:17:28 +00:00

72 lines
2.3 KiB
TypeScript

import { ChangeDetectionStrategy, ChangeDetectorRef, Component, Input, OnChanges, OnInit, SimpleChanges } from '@angular/core';
import { StateService } from '../../services/state.service';
import { Address, AddressTxSummary } from '../../interfaces/electrs.interface';
import { ElectrsApiService } from '../../services/electrs-api.service';
import { Observable, catchError, of } from 'rxjs';
@Component({
selector: 'app-balance-widget',
templateUrl: './balance-widget.component.html',
styleUrls: ['./balance-widget.component.scss'],
changeDetection: ChangeDetectionStrategy.OnPush,
})
export class BalanceWidgetComponent implements OnInit, OnChanges {
@Input() address: string;
@Input() addressInfo: Address;
@Input() addressSummary$: Observable<AddressTxSummary[]> | null;
@Input() isPubkey: boolean = false;
isLoading: boolean = true;
error: any;
delta7d: number = 0;
delta30d: number = 0;
constructor(
public stateService: StateService,
private electrsApiService: ElectrsApiService,
private cd: ChangeDetectorRef,
) { }
ngOnInit(): void {
}
ngOnChanges(changes: SimpleChanges): void {
this.isLoading = true;
if (!this.address || !this.addressInfo) {
return;
}
(this.addressSummary$ || (this.isPubkey
? this.electrsApiService.getScriptHashSummary$((this.address.length === 66 ? '21' : '41') + this.address + 'ac')
: this.electrsApiService.getAddressSummary$(this.address)).pipe(
catchError(e => {
this.error = `Failed to fetch address balance history: ${e?.status || ''} ${e?.statusText || 'unknown error'}`;
return of(null);
}),
)).subscribe(addressSummary => {
if (addressSummary) {
this.error = null;
this.calculateStats(addressSummary);
}
this.isLoading = false;
this.cd.markForCheck();
});
}
calculateStats(summary: AddressTxSummary[]): void {
let weekTotal = 0;
let monthTotal = 0;
const weekAgo = (Date.now() / 1000) - (60 * 60 * 24 * 7);
const monthAgo = (Date.now() / 1000) - (60 * 60 * 24 * 30);
for (let i = 0; i < summary.length && summary[i].time >= monthAgo; i++) {
monthTotal += summary[i].value;
if (summary[i].time >= weekAgo) {
weekTotal += summary[i].value;
}
}
this.delta7d = weekTotal;
this.delta30d = monthTotal;
}
}