<?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('employee_payroll_components', function (Blueprint $table) {
            $table->id();
            $table->unsignedBigInteger('company_id')->nullable();
            $table->unsignedBigInteger('employee_payroll_id');
            $table->string('component_code', 64);
            $table->string('name');
            $table->string('category', 32); // earning, deduction, employer_contribution
            $table->decimal('amount', 15, 2)->default(0);
            $table->json('meta')->nullable();
            $table->unsignedInteger('display_order')->default(0);
            $table->timestamps();

            $table->foreign('company_id')->references('id')->on('companies')->nullOnDelete();
            $table->foreign('employee_payroll_id')->references('id')->on('employee_payrolls')->cascadeOnDelete();
            $table->index(['employee_payroll_id', 'category']);
        });
    }

    public function down(): void
    {
        Schema::dropIfExists('employee_payroll_components');
    }
};