78 lines
2.3 KiB
TypeScript
78 lines
2.3 KiB
TypeScript
import { Component, ChangeDetectionStrategy, OnChanges, Input, OnInit, ChangeDetectorRef, OnDestroy } from '@angular/core';
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import { Transaction } from '../../interfaces/electrs.interface';
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import { StateService } from '../../services/state.service';
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import { Subscription } from 'rxjs';
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import { BlockExtended } from '../../interfaces/node-api.interface';
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import { CacheService } from '../../services/cache.service';
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@Component({
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selector: 'app-tx-fee-rating',
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templateUrl: './tx-fee-rating.component.html',
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styleUrls: ['./tx-fee-rating.component.scss'],
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changeDetection: ChangeDetectionStrategy.OnPush,
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})
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export class TxFeeRatingComponent implements OnInit, OnChanges, OnDestroy {
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@Input() tx: Transaction;
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blocksSubscription: Subscription;
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medianFeeNeeded: number;
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overpaidTimes: number;
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feeRating: number;
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blocks: BlockExtended[] = [];
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constructor(
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private stateService: StateService,
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private cacheService: CacheService,
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private cd: ChangeDetectorRef,
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) { }
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ngOnInit() {
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this.blocksSubscription = this.cacheService.loadedBlocks$.subscribe((block) => {
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if (this.tx.status.confirmed && this.tx.status.block_height === block.height && block?.extras?.medianFee > 0) {
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this.calculateRatings(block);
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this.cd.markForCheck();
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}
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});
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}
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ngOnChanges() {
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this.feeRating = undefined;
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if (!this.tx.status.confirmed) {
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return;
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}
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this.cacheService.loadBlock(this.tx.status.block_height);
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const foundBlock = this.cacheService.getCachedBlock(this.tx.status.block_height) || null;
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if (foundBlock && foundBlock?.extras?.medianFee > 0) {
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this.calculateRatings(foundBlock);
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}
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}
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ngOnDestroy() {
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this.blocksSubscription.unsubscribe();
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}
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calculateRatings(block: BlockExtended) {
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const feePervByte = this.tx.effectiveFeePerVsize || this.tx.fee / (this.tx.weight / 4);
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this.medianFeeNeeded = block?.extras?.medianFee;
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// Block not filled
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if (block.weight < this.stateService.env.BLOCK_WEIGHT_UNITS * 0.95) {
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this.medianFeeNeeded = 1;
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}
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this.overpaidTimes = Math.round(feePervByte / this.medianFeeNeeded);
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if (feePervByte <= this.medianFeeNeeded || this.overpaidTimes < 2) {
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this.feeRating = 1;
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} else {
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this.feeRating = 2;
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if (this.overpaidTimes > 10) {
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this.feeRating = 3;
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}
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}
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}
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}
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