<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Category extends Model
{
    public const TYPE_MEDIA = 'media';
    public const TYPE_PLAYLIST = 'playlist';
    public const TYPE_BREATHING_TEMPLATE = 'breathing_template';

    public const TYPES = [
        self::TYPE_MEDIA,
        self::TYPE_PLAYLIST,
        self::TYPE_BREATHING_TEMPLATE,
    ];

    protected $fillable = ['name', 'type', 'order', 'description', 'icon', 'is_deeplink_only'];

    protected $casts = [
        'order' => 'integer',
        'is_deeplink_only' => 'boolean',
    ];

    protected $appends = ['icon_url', 'deep_link'];

    public function getIconUrlAttribute(): ?string
    {
        return $this->icon ? asset('storage/' . $this->icon) : null;
    }

    public function getDeepLinkAttribute(): ?string
    {
        $canonical = config('deeplinks.category_pattern');

        if ($canonical) {
            return rtrim(str_replace('{id}', $this->id, $canonical), '/');
        }

        return url('/category/' . $this->id);
    }

    public function questions()
    {
        return $this->hasMany(Question::class);
    }

    public function subcategories()
    {
        return $this->hasMany(SubCategory::class);
    }

    public function media()
    {
        return $this->belongsToMany(Media::class, 'category_media');
    }
}