mempool/frontend/src/app/components/assets/assets.component.ts
2022-09-21 17:23:45 +02:00

100 lines
3.1 KiB
TypeScript

import { Component, OnInit, ChangeDetectionStrategy } from '@angular/core';
import { AssetsService } from '../../services/assets.service';
import { environment } from 'src/environments/environment';
import { FormGroup } from '@angular/forms';
import { filter, map, switchMap, take } from 'rxjs/operators';
import { ActivatedRoute, Router } from '@angular/router';
import { combineLatest, Observable } from 'rxjs';
import { AssetExtended } from '../../interfaces/electrs.interface';
import { SeoService } from '../../services/seo.service';
import { StateService } from '../../services/state.service';
@Component({
selector: 'app-assets',
templateUrl: './assets.component.html',
styleUrls: ['./assets.component.scss'],
changeDetection: ChangeDetectionStrategy.OnPush
})
export class AssetsComponent implements OnInit {
nativeAssetId = this.stateService.network === 'liquidtestnet' ? environment.nativeTestAssetId : environment.nativeAssetId;
paginationMaxSize = window.matchMedia('(max-width: 670px)').matches ? 4 : 6;
ellipses = window.matchMedia('(max-width: 670px)').matches ? false : true;
assets: AssetExtended[];
assetsCache: AssetExtended[];
searchForm: FormGroup;
assets$: Observable<AssetExtended[]>;
page = 1;
error: any;
itemsPerPage: number;
contentSpace = window.innerHeight - (250 + 200);
fiveItemsPxSize = 250;
constructor(
private assetsService: AssetsService,
private route: ActivatedRoute,
private router: Router,
private seoService: SeoService,
private stateService: StateService,
) { }
ngOnInit() {
this.seoService.setTitle($localize`:@@ee8f8008bae6ce3a49840c4e1d39b4af23d4c263:Assets`);
this.itemsPerPage = Math.max(Math.round(this.contentSpace / this.fiveItemsPxSize) * 5, 10);
this.assets$ = combineLatest([
this.assetsService.getAssetsJson$,
this.route.queryParams,
])
.pipe(
take(1),
switchMap(([assets, qp]) => {
this.assets = assets.array;
return this.route.queryParams
.pipe(
filter((queryParams) => {
const newPage = parseInt(queryParams.page, 10);
if (newPage !== this.page) {
return true;
}
return false;
}),
map((queryParams) => {
if (queryParams.page) {
const newPage = parseInt(queryParams.page, 10);
this.page = newPage;
} else {
this.page = 1;
}
return '';
})
);
}),
map(() => {
const start = (this.page - 1) * this.itemsPerPage;
return this.assets.slice(start, this.itemsPerPage + start);
})
);
}
pageChange(page: number) {
const queryParams = { page: page };
if (queryParams.page === 1) {
queryParams.page = null;
}
this.page = -1;
this.router.navigate([], {
relativeTo: this.route,
queryParams: queryParams,
queryParamsHandling: 'merge',
});
}
trackByAsset(index: number, asset: any) {
return asset.asset_id;
}
}