<?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
    {
        Schema::create('product_variants', function (Blueprint $table) {
            $table->id();
            $table->foreignId('product_id')->constrained()->cascadeOnDelete();
            $table->foreignId('color_id')->nullable()->constrained()->nullOnDelete();
            $table->foreignId('size_id')->nullable()->constrained()->nullOnDelete();

            $table->string('sku')->unique();
            $table->string('barcode')->nullable();
            $table->decimal('price_override', 10, 2)->nullable();
            $table->enum('status', ['active', 'inactive'])->default('active');

            $table->timestamps();

            $table->unique(['product_id', 'color_id', 'size_id'], 'product_variant_combination_unique');
        });
    }

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