<?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($genre = '', $order = 'asc', $artist = '', $query = '') {
        $this->db->select('album.name, album.id, year, artist.name as artistName, genre.name as genreName, jpeg');
        $this->db->from('album');
        $this->db->join('artist', 'album.artistid = artist.id');
        $this->db->join('genre', 'genre.id = album.genreid');
        $this->db->join('cover', 'cover.id = album.coverid');

        if(!empty($genre)){
            $this->db->where('genre.name', $genre);
        }

        if(!empty($artist)){
            $this->db->where('artist.name', $artist);
        }

        if($order == 'asc' || $order == 'desc'){
            $this->db->order_by('album.name', $order);
        }

        if(!empty($query)){
            $this->db->like('album.name', $query);
        }

        $query = $this->db->get();
        return $query->result();
    }

    public function researchtype(){
        $this->db->select('name');
        $this->db->from('genre');
        $query = $this->db->get();
        return $query->result();
    }

    public function nameArtist(){
        $this->db->select('name');
        $this->db->from('artist');
        $query = $this->db->get();
        return $query->result();
    }

    public function getArtists($genre = '', $order = 'asc', $query = '') {
        $this->db->select('artist.name as artistName, artist.id as artistId');
        $this->db->from('artist');
        $this->db->join('album', 'album.artistid = artist.id');
        $this->db->join('genre', 'genre.id = album.genreid');
        $this->db->join('cover', 'cover.id = album.coverid');
    
        $this->db->distinct("artist.name");
    
        if (!empty($genre)) {
            $this->db->where('genre.name', $genre);
        }
    
        if ($order == 'asc' || $order == 'desc') {
            $this->db->order_by('artist.name', $order);
        }
    
        if (!empty($query)) {
            $this->db->like('artist.name', $query);
        }
    
        $result = $this->db->get();
        return $result->result();
    }

    public function getMusics($genre = '', $order = '', $artist = '', $query = '') {
        $this->db->select('album.name as albumName, album.id as albumId, year, artist.name as artistName, genre.name as genreName, jpeg, song.name as trackName, track.id as trackId');
        $this->db->from('track');
        $this->db->join('album', 'track.albumId = album.id');
        $this->db->join('song', 'song.id = track.songId');
        $this->db->join('artist', 'album.artistid = artist.id');
        $this->db->join('genre', 'genre.id = album.genreid');
        $this->db->join('cover', 'cover.id = album.coverid');
        $this->db->limit(100);
    
        if (!empty($genre)) {
            $this->db->where('genre.name', $genre);
        }
    
        if (!empty($artist)) {
            $this->db->where('artist.name', $artist);
        }
    
        if ($order == 'asc' || $order == 'desc') {
            $this->db->order_by('song.name', $order);
        }
    
        if (!empty($query)) {
            $this->db->like('song.name', $query);
        }
    
        $result = $this->db->get();
        return $result->result();
    }

    public function getAlbumDetails($albumId) {
        $this->db->select('album.name as albumName, album.id, year, artist.name as artistName, genre.name as genreName, jpeg');
        $this->db->from('album');
        $this->db->join('artist', 'album.artistid = artist.id');
        $this->db->join('genre', 'genre.id = album.genreid');
        $this->db->join('cover', 'cover.id = album.coverid');
        $this->db->where('album.id', $albumId);
        $albumQuery = $this->db->get();
        $albumDetails = $albumQuery->row();
    
        $this->db->select('song.name as trackName, track.id as trackId');
        $this->db->from('track');
        $this->db->join('song', 'track.songId = song.id');
        $this->db->where('track.albumId', $albumId);
        $songsQuery = $this->db->get();
        $songs = $songsQuery->result();
    
        return array('album' => $albumDetails, 'songs' => $songs);
    }

    public function getAlbumsByArtist($artistId) {
        $this->db->select('album.id as albumId, album.name as albumName, album.year, cover.jpeg, genre.name as genreName');
        $this->db->from('album');
        $this->db->join('genre', 'album.genreid = genre.id');
        $this->db->join('cover', 'album.coverid = cover.id');
        $this->db->where('album.artistid', $artistId);
        $albumsQuery = $this->db->get();
        $albums = $albumsQuery->result();
    
        foreach ($albums as $album) {
            $this->db->select('track.id as trackId, song.name as songName');
            $this->db->from('track');
            $this->db->join('song', 'track.songid = song.id');
            $this->db->where('track.albumid', $album->albumId);
            $album->songs = $this->db->get()->result();
        }
    
        return $albums;
    }

    public function getArtistDetails($artistId) {
        $this->db->select('artist.name as artistName, artist.id');
        $this->db->from('artist');
        $this->db->where('artist.id', $artistId);
        $artistQuery = $this->db->get();
        return $artistQuery->row();
    }

    public function getSongDetails($songId) {
        $this->db->select('
            song.name as songName, 
            song.id as songId, 
            album.name as albumName, 
            album.id as albumId, 
            album.year, 
            artist.name as artistName, 
            artist.id as artistId, 
            cover.jpeg,
            track.diskNumber, 
            track.number, 
            track.duration
        ');
        $this->db->from('track');
        $this->db->join('album', 'track.albumid = album.id');
        $this->db->join('song', 'song.id = track.songid');
        $this->db->join('artist', 'album.artistid = artist.id');
        $this->db->join('cover', 'cover.id = album.coverid');
        $this->db->where('track.id', $songId);
    
        $result = $this->db->get();
        return $result->row_array();
    }

    public function getSongsByAlbum($albumId) {
        $this->db->select('track.id');
        $this->db->from('track');
        $this->db->where('track.albumid', $albumId);
        $query = $this->db->get();
        return $query->result();
    }

    public function getSongsByArtist($artistId) {
        $this->db->select('track.id');
        $this->db->from('track');
        $this->db->join('album', 'track.albumid = album.id');
        $this->db->where('album.artistid', $artistId);
        $query = $this->db->get();
        return $query->result();
    }    
    

    public function getRandomSongs($numSongs, $artist = '', $genre = '') {
        $this->db->select('track.id as trackId');
        $this->db->from('track');
        $this->db->join('album', 'track.albumid = album.id');
        $this->db->join('song', 'song.id = track.songid');
        $this->db->join('artist', 'album.artistid = artist.id');
        $this->db->join('genre', 'album.genreid = genre.id');
    
        if (!empty($artist)) {
            $this->db->where('artist.name', $artist);
        }
    
        if (!empty($genre)) {
            $this->db->where('genre.name', $genre);
        }
    
        $this->db->order_by('RAND()');
        $this->db->limit($numSongs);
    
        $query = $this->db->get();
        return $query->result();
    }
    

    public function getGenres() {
        $this->db->select('id, name');
        $this->db->from('genre');
        $query = $this->db->get();
        return $query->result();
    }
}