<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;  // ← Add this
use Illuminate\Database\Eloquent\Relations\HasMany;    // ← Add this
class MusicCategory extends Model
{
    protected $table = 'music_categories';
    
    protected $fillable = [
        'name', 'slug', 'description', 'image_id', 'order', 'is_active'
    ];
    
    protected $casts = [
        'is_active' => 'boolean',
        'order' => 'integer',
    ];

    public function playlists(): HasMany
    {
        return $this->hasMany(MusicPlaylist::class, 'category_id');
    }

    public function subcategories(): HasMany
    {
        return $this->hasMany(MusicSubcategory::class, 'category_id');
    }
       // All playlists (including those in subcategories)
    public function allPlaylists()
    {
        $playlists = collect($this->playlists);
        
        foreach ($this->subcategories as $subcategory) {
            $playlists = $playlists->merge($subcategory->playlists);
        }
        
        return $playlists;
    }
    public function image(): BelongsTo
    {
        return $this->belongsTo(Image::class);
    }
    
    public function getActivePlaylistsAttribute()
    {
        return $this->playlists()->where('is_active', true)->get();
    }

      // Total music count across all playlists and subcategories
    public function getTotalMusicCountAttribute()
    {
        $count = $this->playlists->sum(function($playlist) {
            return $playlist->musics->count();
        });
        
        foreach ($this->subcategories as $subcategory) {
            $count += $subcategory->total_music_count;
        }
        
        return $count;
    }
}