import { Router } from '@oak/oak';
import type { Context } from '@oak/oak';
import { TrackService } from '../../application/mod.ts';
import { logger } from '../../shared/logger.ts';

/**
 * Track/Playlist routes
 */
export function createTrackRoutes(trackService: TrackService): Router {
  const router = new Router();

  /**
   * GET /api/playlists
   * Get list of available playlists
   */
  router.get('/api/playlists', async (ctx: Context) => {
    try {
      const playlists = await trackService.getAvailablePlaylists();
      ctx.response.body = { ok: true, playlists };
      ctx.response.status = 200;
    } catch (error) {
      logger.error(`Error fetching playlists: ${error}`);
      ctx.response.body = { ok: false, error: 'Failed to fetch playlists' };
      ctx.response.status = 500;
    }
  });

  /**
   * GET /api/tracks?playlist=<id>
   * Get tracks from a specific playlist
   */
  router.get('/api/tracks', async (ctx: Context) => {
    try {
      const playlistId = ctx.request.url.searchParams.get('playlist') || 'default';
      const tracks = await trackService.loadPlaylistTracks(playlistId);
      
      ctx.response.body = { ok: true, tracks, playlist: playlistId };
      ctx.response.status = 200;
    } catch (error) {
      logger.error(`Error fetching tracks: ${error}`);
      ctx.response.body = { ok: false, error: 'Failed to fetch tracks' };
      ctx.response.status = 500;
    }
  });

  /**
   * GET /api/reload-years?playlist=<id>
   * Reload years index for a playlist
   */
  router.get('/api/reload-years', async (ctx: Context) => {
    try {
      const playlistId = ctx.request.url.searchParams.get('playlist') || 'default';
      const result = await trackService.reloadYearsIndex(playlistId);
      
      ctx.response.body = { 
        ok: true, 
        count: result.count, 
        playlist: playlistId 
      };
      ctx.response.status = 200;
    } catch (error) {
      logger.error(`Error reloading years: ${error}`);
      ctx.response.body = { ok: false, error: 'Failed to reload years' };
      ctx.response.status = 500;
    }
  });

  return router;
}