// database/migrations/2024_01_01_000009_create_invoice_items_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()
    {
        Schema::create('invoice_items', function (Blueprint $table) {
            $table->id();
            $table->foreignId('invoice_id')->constrained()->onDelete('cascade');
            $table->foreignId('product_id')->nullable()->constrained()->onDelete('cascade');
            $table->integer('quantity');
            $table->decimal('unit_price', 15, 2);
            $table->decimal('total', 15, 2);
            $table->decimal('purchase_price', 15, 2);
            $table->decimal('cogs', 15, 2); // Cost of Goods Sold
            $table->decimal('profit', 15, 2);
            $table->timestamps();
        });
    }

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