<?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('resource_versions', function (Blueprint $table) {
            $table->id();
            $table->foreignId('product_id')
                ->constrained('products')
                ->cascadeOnUpdate()
                ->cascadeOnDelete();
            $table->string('version', 10); // YYYYMMDDXX
            $table->text('description')->nullable();
            $table->foreignId('created_by')
                ->nullable()
                ->constrained('users')
                ->nullOnDelete()
                ->cascadeOnUpdate();
            $table->foreignId('updated_by')
                ->nullable()
                ->constrained('users')
                ->nullOnDelete()
                ->cascadeOnUpdate();
            $table->timestamps();
            $table->unique(['product_id', 'version']);
            $table->index(['product_id', 'version']);
        });
    }

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