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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | 1x 1x 1x 1x 1x 1x 1x 1x 24x 24x 24x 24x 24x 24x 24x 24x 24x 24x 43x 24x 51x 24x 2x 24x 53x 50x 50x 36x 1x 34x 34x 34x 29x 29x 6x 6x 6x 6x 1x 5x 5x 2x 5x 3x 3x 5x | import { ArticleService } from '../../services/articles';
import { ChangeDetectionStrategy, Component, computed, DestroyRef, inject, OnInit, signal } from '@angular/core';
import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { RouterLink } from '@angular/router';
import { ArticleSearchResult } from '@drevo-web/shared';
import {
SpinnerComponent,
TextInputComponent,
VirtualScrollerComponent,
VirtualScrollerItemDirective,
MODAL_DATA,
ModalData,
} from '@drevo-web/ui';
import { catchError, debounceTime, distinctUntilChanged, map, of, startWith, Subject, switchMap, tap } from 'rxjs';
const DEBOUNCE_TIME_MS = 500;
@Component({
selector: 'app-search',
imports: [
RouterLink,
TextInputComponent,
SpinnerComponent,
VirtualScrollerComponent,
VirtualScrollerItemDirective,
],
templateUrl: './search.component.html',
styleUrl: './search.component.scss',
changeDetection: ChangeDetectionStrategy.OnPush,
})
export class SearchComponent implements OnInit {
private readonly articleService = inject(ArticleService);
private readonly destroyRef = inject(DestroyRef);
private readonly modalData = inject<ModalData>(MODAL_DATA, {
optional: true,
});
private readonly searchSubject = new Subject<string>();
readonly searchQuery = signal('');
readonly searchResults = signal<ArticleSearchResult[]>([]);
readonly isLoading = signal(false);
readonly isLoadingMore = signal(false);
readonly totalResults = signal(0);
readonly currentPage = signal(1);
readonly hasResults = computed(() => this.searchResults().length > 0 && !this.isLoading());
readonly showNoResults = computed(
() =>
this.searchQuery().length > 0 &&
!this.isLoading() &&
this.totalResults() === 0 &&
this.searchResults().length === 0
);
readonly trackByFn = (_index: number, item: ArticleSearchResult): number => item.id;
closeModal(): void {
this.modalData?.close();
}
ngOnInit(): void {
this.searchSubject
.pipe(
startWith(''),
map(query => query.trim()),
distinctUntilChanged(),
tap(() => {
this.isLoading.set(true);
this.currentPage.set(1);
}),
debounceTime(DEBOUNCE_TIME_MS),
switchMap(query => {
return this.articleService
.searchArticles({
query,
page: 1,
})
.pipe(
catchError(() => {
return of({ items: [], total: 0 });
})
);
}),
takeUntilDestroyed(this.destroyRef)
)
.subscribe(response => {
this.searchResults.set([...response.items]);
this.totalResults.set(response.total);
this.isLoading.set(false);
});
}
onSearchChange(value: string): void {
this.searchQuery.set(value);
this.searchSubject.next(value);
}
onLoadMore(): void {
const query = this.searchQuery();
const nextPage = this.currentPage() + 1;
const currentResults = this.searchResults();
// Check if we already have all results
if (currentResults.length >= this.totalResults()) {
return;
}
this.isLoadingMore.set(true);
this.articleService
.searchArticles({ query, page: nextPage })
.pipe(
catchError(() => {
return of({ items: [], total: 0 });
}),
takeUntilDestroyed(this.destroyRef)
)
.subscribe(response => {
if (response.items.length > 0) {
this.searchResults.set([...currentResults, ...response.items]);
this.currentPage.set(nextPage);
}
this.isLoadingMore.set(false);
});
}
}
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