📄 2024_04_01_000005_create_reviews_table.php

<?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('reviews')) Schema::create('reviews', function (Blueprint $table) {
            $table->id();
            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
            $table->foreignId('product_id')->constrained()->cascadeOnDelete();
            $table->foreignId('order_id')->nullable()->constrained()->nullOnDelete();
            $table->foreignId('order_item_id')->nullable()->constrained('order_items')->nullOnDelete();
            $table->unsignedTinyInteger('rating'); // 1-5
            $table->string('title')->nullable();
            $table->text('body')->nullable();
            $table->json('media')->nullable(); // uploaded review photos
            $table->boolean('is_verified_purchase')->default(false);
            $table->text('vendor_reply')->nullable();
            $table->timestamp('vendor_replied_at')->nullable();
            $table->enum('status', ['pending', 'approved', 'rejected'])->default('pending');
            $table->string('rejection_reason')->nullable();
            $table->unsignedInteger('helpful_count')->default(0);
            $table->timestamps();

            $table->unique(['user_id', 'product_id', 'order_item_id']);
            $table->index(['product_id', 'status', 'rating']);
            $table->index(['user_id', 'status']);
        });
    }

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