koel/app/Models/Album.php

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<?php
namespace App\Models;
use App\Facades\Lastfm;
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use Illuminate\Database\Eloquent\Model;
/**
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* @property string cover The path to the album's cover
* @property bool has_cover If the album has a cover image
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* @property int id
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* @property string name Name of the album
* @property bool is_compilation If the album is a compilation from multiple artists
* @property Artist artist The album's artist
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*/
class Album extends Model
{
const UNKNOWN_ID = 1;
const UNKNOWN_NAME = 'Unknown Album';
const UNKNOWN_COVER = 'unknown-album.png';
protected $guarded = ['id'];
protected $hidden = ['created_at', 'updated_at'];
public function artist()
{
return $this->belongsTo(Artist::class);
}
public function songs()
{
return $this->hasMany(Song::class);
}
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public function isUnknown()
{
return $this->id === self::UNKNOWN_ID;
}
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/**
* Get an album using some provided information.
*
* @param Artist $artist
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* @param string $name
* @param bool $isCompilation
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*
* @return self
*/
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public static function get(Artist $artist, $name, $isCompilation = false)
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{
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// If this is a compilation album, its artist must be "Various Artists"
if ($isCompilation) {
$artist = Artist::getVarious();
}
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return self::firstOrCreate([
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'artist_id' => $artist->id,
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'name' => $name ?: self::UNKNOWN_NAME,
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]);
}
/**
* Get extra information about the album from Last.fm.
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*
* @return array|false
*/
public function getInfo()
{
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if ($this->isUnknown()) {
return false;
}
$info = Lastfm::getAlbumInfo($this->name, $this->artist->name);
// If our current album has no cover, and Last.fm has one, why don't we steal it?
// Great artists steal for their great albums!
if (!$this->has_cover &&
is_string($image = array_get($info, 'image')) &&
ini_get('allow_url_fopen')
) {
$extension = explode('.', $image);
$this->writeCoverFile(file_get_contents($image), last($extension));
$info['cover'] = $this->cover;
}
return $info;
}
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/**
* Generate a cover from provided data.
*
* @param array $cover The cover data in array format, extracted by getID3.
* For example:
* [
* 'data' => '<binary data>',
* 'image_mime' => 'image/png',
* 'image_width' => 512,
* 'image_height' => 512,
* 'imagetype' => 'PNG', // not always present
* 'picturetype' => 'Other',
* 'description' => '',
* 'datalength' => 7627,
* ]
*/
public function generateCover(array $cover)
{
$extension = explode('/', $cover['image_mime']);
$extension = empty($extension[1]) ? 'png' : $extension[1];
$this->writeCoverFile($cover['data'], $extension);
}
/**
* Write a cover image file with binary data and update the Album with the new cover file.
*
* @param string $binaryData
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* @param string $extension The file extension
*/
private function writeCoverFile($binaryData, $extension)
{
$extension = trim(strtolower($extension), '. ');
$fileName = uniqid().".$extension";
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$coverPath = app()->publicPath().'/public/img/covers/'.$fileName;
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file_put_contents($coverPath, $binaryData);
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$this->update(['cover' => $fileName]);
}
public function setCoverAttribute($value)
{
$this->attributes['cover'] = $value ?: self::UNKNOWN_COVER;
}
public function getCoverAttribute($value)
{
return app()->staticUrl('public/img/covers/'.($value ?: self::UNKNOWN_COVER));
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}
/**
* Determine if the current album has a cover.
*
* @return bool
*/
public function getHasCoverAttribute()
{
return $this->cover !== $this->getCoverAttribute(null);
}
/**
* Sometimes the tags extracted from getID3 are HTML entity encoded.
* This makes sure they are always sane.
*
* @param $value
*
* @return string
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*/
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public function getNameAttribute($value)
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{
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return html_entity_decode($value);
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}
}