<?php

namespace App\Modules\Finance\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Facades\Storage;

class UtilityFeeAttachment extends Model
{
    protected $fillable = [
        'utility_fee_id',
        'file_path',
        'original_name',
        'mime_type',
        'size',
    ];

    protected $appends = ['url'];

    /**
     * 附件所属的公共事業費
     */
    public function utilityFee(): BelongsTo
    {
        return $this->belongsTo(UtilityFee::class);
    }

    /**
     * 獲取附件的全路徑 URL
     */
    public function getUrlAttribute()
    {
        return tenant_asset($this->file_path);
    }
}