<?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('conversations', function (Blueprint $table) {
            $table->id();
            $table->unsignedBigInteger('user_one_id'); // The first user in the conversation
            $table->unsignedBigInteger('user_two_id'); // The second user in the conversation (or it could be a group)

            // Foreign keys
            $table->foreign('user_one_id')->references('id')->on('users')->onDelete('cascade');
            $table->foreign('user_two_id')->references('id')->on('users')->onDelete('cascade');

            // Ensure that the same pair of users cannot have multiple conversations
            $table->unique(['user_one_id', 'user_two_id']);
            $table->timestamps();
        });
    }

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