<?php

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

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('chats', function (Blueprint $table) {
            $table->id();
            $table->foreignId('user_id')->constrained()->onDelete('cascade');
            $table->foreignId('agent_id')->constrained()->onDelete('cascade');
            $table->string('message');
            $table->boolean('is_agent')->default(false);
            $table->string('message_type')->default('text'); // text, image, file
            $table->string('file_path')->nullable();
            $table->boolean('is_read')->default(false);
            $table->timestamps();
            
            $table->index(['user_id', 'agent_id']);
            $table->index(['created_at']);
        });
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('chats');
    }
};
