const models = require('../models');
import * as api from '../../client/src/api';
import { EndpointError, EndpointHandler } from './types';

export const ListSongsEndpointHandler:EndpointHandler = async (req: any, res: any) => {
    if (!api.checkListSongsRequest(req)) {
        const e:EndpointError = {
            internalMessage: 'Invalid ListSongs request: ' + JSON.stringify(req.body),
            httpStatus: 400
        };
        throw e;
    }
    await models.Song.findAll({
        include: [models.Artist, models.Album]
    })
        .then((songs: any[]) => {
            console.log(songs);
            const response: api.ListSongsResponse = songs.map((song: any) => {
                return {
                    title: song.title,
                    id: song.id,
                    artists: song.Artists.map((artist: any) => {
                        return {
                            name: artist.name,
                            id: artist.id,
                        };
                    }),
                    albums: song.Albums.map((album: any) => {
                        return {
                            name: album.name,
                            id: album.id,
                        };
                    }),
                };
            });
            res.send(response);
        });
}