<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class AuditLog extends Model
{
    use HasFactory;

    public const UPDATED_AT = null;

    protected $fillable = [
        'user_id',
        'tenant_id',
        'model_type',
        'model_id',
        'action',
        'old_values',
        'new_values',
        'ip_address',
        'user_agent',
        'url',
        'method',
    ];

    protected $casts = [
        'old_values' => 'array',
        'new_values' => 'array',
    ];

    public function user()
    {
        return $this->belongsTo(User::class);
    }

    /**
     * Get the auditable model (polymorphic-like relationship using model_type/model_id).
     */
    public function subject()
    {
        if ($this->model_type && class_exists($this->model_type)) {
            return $this->morphTo(null, 'model_type', 'model_id');
        }

        return null;
    }
}