48 lines
1.5 KiB
TypeScript
48 lines
1.5 KiB
TypeScript
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import { Injectable, inject } from '@angular/core';
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import { AuthService } from '../../../services/auth.service';
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import { SearchHistory } from '../models/search.model';
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import { BackendSearchHistoryRepository, LocalSearchHistoryRepository, SearchHistoryRepository } from './search-history.repository';
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@Injectable({ providedIn: 'root' })
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export class SearchHistoryService {
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private readonly authService = inject(AuthService);
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private readonly localRepository = inject(LocalSearchHistoryRepository);
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private readonly backendRepository = inject(BackendSearchHistoryRepository);
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private readonly maxSize = 12;
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private get repository(): SearchHistoryRepository {
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return this.authService.session() ? this.backendRepository : this.localRepository;
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}
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getSnapshot(): SearchHistory {
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const items = this.repository.load();
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return {
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items,
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recent: items.slice(0, 8),
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};
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}
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push(query: string, maxHistory = this.maxSize): SearchHistory {
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const normalized = query.trim();
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if (!normalized.length) {
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return this.getSnapshot();
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}
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const existing = this.repository.load();
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const next = [normalized, ...existing.filter(item => item.toLowerCase() !== normalized.toLowerCase())]
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.slice(0, Math.max(1, maxHistory));
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this.repository.save(next);
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return {
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items: next,
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recent: next.slice(0, 8),
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};
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}
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clear(): SearchHistory {
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this.repository.clear();
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return { items: [], recent: [] };
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}
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}
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