<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    public function up()
    {
        Schema::create('audit_logs', function (Blueprint $table) {
            $table->id();
            $table->morphs('auditable');
            $table->unsignedBigInteger('user_id')->nullable();
            $table->string('event'); // created, updated, deleted, bulk_upload, etc.
            $table->json('old_values')->nullable();
            $table->json('new_values')->nullable();
            $table->string('ip_address')->nullable();
            $table->string('user_agent')->nullable();
            $table->text('description')->nullable();
            $table->timestamps();
            
            $table->index('user_id');
            $table->index('event');
        });
    }

    public function down()
    {
        Schema::dropIfExists('audit_logs');
    }
};