<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');                                             

class Model_music extends CI_Model {
	public function __construct(){
		$this->load->database();
	}

	public function getAlbums(){
		$query = $this->db->query(
			"SELECT album.name,album.id,year,artist.name as artistName, genre.name as genreName,jpeg 
			FROM album 
			JOIN artist ON album.artistid = artist.id
			JOIN genre ON genre.id = album.genreid
			JOIN cover ON cover.id = album.coverid
			ORDER BY year
			"
		);
	return $query->result();
	}

	public function getArtistes(){
		$query = $this->db->query(
			"SELECT artist.id AS artistId, artist.name AS artistName, album.name AS albumName, album.year, cover.jpeg
			FROM album
			INNER JOIN artist ON album.artistId = artist.id
			JOIN cover ON cover.id = album.coverId
			GROUP BY artist.name, album.year
			"
		);
		
		return $query->result();
	}

	public function getTracksByAlbumId($albumId){
        $query = $this->db->query(
            "SELECT track.number, track.duration, song.name as songName 
            FROM track 
            JOIN album ON album.id = track.albumid
            JOIN artist ON artist.id = album.artistId
            JOIN song ON song.id = track.songId
            WHERE track.albumId = ?
			ORDER BY track.number",
            array($albumId)
        );
        return $query->result();
    }
}