import { HttpClient, HttpParams } from '@angular/common/http';
import { firstValueFrom } from 'rxjs';
import type { ProviderAdapter, ProviderSearchParams, SearchResult } from '../models';
import { VideoItem } from 'src/app/shared/models/video-item.model';
import { withFilterParams } from './filter-params';

export class OdAdapter implements ProviderAdapter<VideoItem> {
  key = 'od' as const;
  label = 'Odysee';
  constructor(private http: HttpClient) {}
  async search(params: ProviderSearchParams, _signal: AbortSignal): Promise<SearchResult<VideoItem>> {
    let httpParams = new HttpParams().set('q', params.q).set('providers', 'od');
    if (params.pageToken) httpParams = httpParams.set('page', params.pageToken);
    if (params.sort) httpParams = httpParams.set('sort', params.sort);
    // Filtres (type / durée / période) : appliqués côté serveur quand le provider
    // le sait, affinés en post-traitement sinon.
    httpParams = withFilterParams(httpParams, params.filters);
    const res = await firstValueFrom(this.http.get<any>(`/api/search`, { params: httpParams }));
    const providerError = typeof res?.errors?.od?.message === 'string' ? res.errors.od.message : undefined;
    const items: VideoItem[] = (res?.groups?.od || []).map((it: any) => {
      let slug: string | undefined;
      try {
        const url: string | undefined = it?.url;
        if (url && /^https?:\/\/odysee\.com\//i.test(url)) {
          slug = url.replace(/^https?:\/\/odysee\.com\//i, '').replace(/^\//, '');
        }
      } catch {}
      return {
        id: it.id,
        provider: 'odysee',
        title: it.title,
        channelName: it.uploaderName,
        durationSec: it.duration,
        thumbnailUrl: it.thumbnail,
        viewCount: undefined,
        publishedAt: undefined,
        slug,
        // Nom de chaîne LBRY (ex. @MaChaine) : le backend /api/channels/od
        // sait le résoudre avec ou sans préfixe @.
        channelExternalId: it.uploaderName || undefined,
        // Signaux de type pour le raffinement client des filtres.
        type: typeof it.type === 'string' ? it.type : undefined,
        isShort: it.isShort === true ? true : undefined,
      } as VideoItem;
    });
    return { items, total: Array.isArray(res?.groups?.od) ? res.groups.od.length : 0, providerError };
  }
}