import { ChangeDetectionStrategy, Component, Input, OnInit } from '@angular/core'; import { ActivatedRoute } from '@angular/router'; import { map, Observable, share } from 'rxjs'; import { ApiService } from 'src/app/services/api.service'; import { SeoService } from 'src/app/services/seo.service'; import { getFlagEmoji } from 'src/app/shared/common.utils'; import { GeolocationData } from 'src/app/shared/components/geolocation/geolocation.component'; @Component({ selector: 'app-nodes-per-country', templateUrl: './nodes-per-country.component.html', styleUrls: ['./nodes-per-country.component.scss'], changeDetection: ChangeDetectionStrategy.OnPush, }) export class NodesPerCountry implements OnInit { nodes$: Observable; country: {name: string, flag: string}; skeletonLines: number[] = []; constructor( private apiService: ApiService, private seoService: SeoService, private route: ActivatedRoute, ) { for (let i = 0; i < 20; ++i) { this.skeletonLines.push(i); } } ngOnInit(): void { this.nodes$ = this.apiService.getNodeForCountry$(this.route.snapshot.params.country) .pipe( map(response => { this.seoService.setTitle($localize`Lightning nodes in ${response.country.en}`); this.country = { name: response.country.en, flag: getFlagEmoji(this.route.snapshot.params.country) }; for (const i in response.nodes) { response.nodes[i].geolocation = { country: response.nodes[i].country?.en, city: response.nodes[i].city?.en, subdivision: response.nodes[i].subdivision?.en, iso: response.nodes[i].iso_code, }; } const sumLiquidity = response.nodes.reduce((partialSum, a) => partialSum + a.capacity, 0); const sumChannels = response.nodes.reduce((partialSum, a) => partialSum + a.channels, 0); const isps = {}; const topIsp = { count: 0, id: '', name: '', }; for (const node of response.nodes) { if (!node.isp) { continue; } if (!isps[node.isp]) { isps[node.isp] = { count: 0, asns: [], }; } if (isps[node.isp].asns.indexOf(node.as_number) === -1) { isps[node.isp].asns.push(node.as_number); } isps[node.isp].count++; if (isps[node.isp].count > topIsp.count) { topIsp.count = isps[node.isp].count; topIsp.id = isps[node.isp].asns.join(','); topIsp.name = node.isp; } } return { nodes: response.nodes, sumLiquidity: sumLiquidity, sumChannels: sumChannels, topIsp: topIsp, ispCount: Object.keys(isps).length }; }), share() ); } trackByPublicKey(index: number, node: any): string { return node.public_key; } }