<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ActivityLog extends Model
{
    protected $fillable = [
        'user_id', 'loggable_type', 'loggable_id', 'action', 
        'old_data', 'new_data', 'ip_address', 'user_agent'
    ];

    protected $casts = [
        'old_data' => 'array',
        'new_data' => 'array',
    ];

    // Links back to the User who made the change
    public function user()
    {
        return $this->belongsTo(StaffMember::class);
    }

    // Links back to the affected Model (Client, Server, VpnConfig, etc.)
    public function loggable()
    {
        return $this->morphTo();
    }
}