<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    public function up(): void
    {
        if (Schema::hasTable('ticket_messages')) {
            return;
        }

        Schema::create('ticket_messages', function (Blueprint $table) {
            $table->id();
            $table->foreignId('ticket_id')->constrained()->onDelete('cascade');
            $table->foreignId('sender_id')->constrained('users')->onDelete('cascade');
            $table->string('sender_type', 20);
            $table->text('message');
            $table->boolean('is_internal')->default(false);
            $table->timestamps();

            $table->index(['ticket_id', 'created_at']);
            $table->index(['sender_id', 'sender_type']);
        });
    }

    public function down(): void
    {
        Schema::dropIfExists('ticket_messages');
    }
};