<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;

class CommitmentForm extends Model
{
    use SoftDeletes;

    protected $fillable = [
        'title',
        'description',
        'file_path',
        'file_type',
        'file_size',
        'direction',
        'is_active',
        'sort_order',
        'uploaded_by',
    ];

    protected $casts = [
        'is_active' => 'boolean',
        'sort_order' => 'integer',
        'file_size' => 'integer',
    ];

    /**
     * کاربری که فایل را آپلود کرده
     */
    public function uploader(): BelongsTo
    {
        return $this->belongsTo(User::class, 'uploaded_by');
    }

    /**
     * آدرس کامل فایل
     */
    public function getFileUrlAttribute(): string
    {
        return asset('storage/' . $this->file_path);
    }

    /**
     * فرمت حجم فایل
     */
    public function getFormattedSizeAttribute(): string
    {
        $bytes = $this->file_size;
        $units = ['B', 'KB', 'MB', 'GB'];
        
        for ($i = 0; $bytes >= 1024 && $i < count($units) - 1; $i++) {
            $bytes /= 1024;
        }
        
        return round($bytes, 2) . ' ' . $units[$i];
    }
}