import type { Song, PlaylistNode } from '../types/interfaces';

const API_BASE_URL = import.meta.env.VITE_API_URL || 'http://localhost:3000/api';

class Api {
  async getSongs(): Promise<Song[]> {
    const response = await fetch(`${API_BASE_URL}/songs`);
    if (!response.ok) throw new Error('Failed to fetch songs');
    return response.json();
  }

  async saveSongs(songs: Song[]): Promise<Song[]> {
    const response = await fetch(`${API_BASE_URL}/songs/batch`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify(songs),
    });
    if (!response.ok) throw new Error('Failed to save songs');
    return response.json();
  }

  async getPlaylists(): Promise<PlaylistNode[]> {
    const response = await fetch(`${API_BASE_URL}/playlists`);
    if (!response.ok) throw new Error('Failed to fetch playlists');
    return response.json();
  }

  async savePlaylists(playlists: PlaylistNode[]): Promise<PlaylistNode[]> {
    const response = await fetch(`${API_BASE_URL}/playlists/batch`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify(playlists),
    });
    if (!response.ok) throw new Error('Failed to save playlists');
    return response.json();
  }

  async resetDatabase(): Promise<boolean> {
    try {
      const response = await fetch(`${API_BASE_URL}/reset`, {
        method: 'POST',
      });
      
      if (!response.ok) {
        throw new Error('Failed to reset database');
      }
      
      return true;
    } catch (error) {
      console.error('Error resetting database:', error);
      throw error;
    }
  }
}

export const api = new Api();