59 lines
2.3 KiB
TypeScript
59 lines
2.3 KiB
TypeScript
import { ChangeDetectionStrategy, Component, Input, OnChanges, SimpleChanges } from '@angular/core';
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@Component({
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selector: 'app-channel-close-box',
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templateUrl: './channel-close-box.component.html',
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styleUrls: ['./channel-close-box.component.scss'],
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changeDetection: ChangeDetectionStrategy.OnPush,
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})
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export class ChannelCloseBoxComponent implements OnChanges {
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@Input() channel: any;
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@Input() local: any;
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@Input() remote: any;
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showStartingBalance: boolean = false;
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showClosingBalance: boolean = false;
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minStartingBalance: number;
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maxStartingBalance: number;
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minClosingBalance: number;
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maxClosingBalance: number;
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constructor() { }
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ngOnChanges(changes: SimpleChanges): void {
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if (this.channel && this.local && this.remote) {
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this.showStartingBalance = (this.local.funding_balance || this.remote.funding_balance) && this.channel.funding_ratio;
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this.showClosingBalance = this.local.closing_balance || this.remote.closing_balance;
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if (this.channel.single_funded) {
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if (this.local.funding_balance) {
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this.minStartingBalance = this.channel.capacity;
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this.maxStartingBalance = this.channel.capacity;
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} else if (this.remote.funding_balance) {
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this.minStartingBalance = 0;
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this.maxStartingBalance = 0;
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}
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} else {
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this.minStartingBalance = clampRound(0, this.channel.capacity, this.local.funding_balance * this.channel.funding_ratio);
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this.maxStartingBalance = clampRound(0, this.channel.capacity, this.channel.capacity - (this.remote.funding_balance * this.channel.funding_ratio));
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}
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const closingCapacity = this.channel.capacity - this.channel.closing_fee;
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this.minClosingBalance = clampRound(0, closingCapacity, this.local.closing_balance);
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this.maxClosingBalance = clampRound(0, closingCapacity, closingCapacity - this.remote.closing_balance);
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// margin of error to account for 2 x 330 sat anchor outputs
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if (Math.abs(this.minClosingBalance - this.maxClosingBalance) <= 660) {
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this.maxClosingBalance = this.minClosingBalance;
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}
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} else {
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this.showStartingBalance = false;
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this.showClosingBalance = false;
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}
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}
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}
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function clampRound(min: number, max: number, value: number): number {
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return Math.max(0, Math.min(max, Math.round(value)));
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}
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