<?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('stock_operations', function (Blueprint $table) {
            $table->id();
            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
            $table->foreignId('created_by')->constrained('users')->restrictOnDelete();
            $table->foreignId('responsible_id')->constrained('users')->restrictOnDelete();
            $table->foreignId('warehouse_id')->constrained()->restrictOnDelete();
            $table->foreignId('destination_warehouse_id')->nullable()->constrained('warehouses')->restrictOnDelete();
            $table->foreignId('stock_item_id')->constrained()->restrictOnDelete();
            $table->foreignId('count_id')->nullable()->unique()->constrained('stock_operations')->restrictOnDelete();
            $table->string('kind');
            $table->string('reference', 100);
            $table->uuid('idempotency_key');
            $table->string('payload_hash', 64);
            $table->string('destination', 200)->nullable();
            $table->text('reason');
            $table->bigInteger('quantity_milli');
            $table->bigInteger('theoretical_milli')->nullable();
            $table->unsignedBigInteger('ledger_version')->nullable();
            $table->json('snapshot');
            $table->timestamp('recorded_at');
            $table->unique(['tenant_id', 'reference']);
            $table->unique(['tenant_id', 'idempotency_key']);
        });
        Schema::table('stock_movements', function (Blueprint $table) {
            $table->unsignedBigInteger('goods_receipt_item_id')->nullable()->change();
            $table->bigInteger('quantity_milli')->change();
            $table->foreignId('stock_operation_id')->nullable()->constrained()->restrictOnDelete();
            $table->unique(['stock_operation_id', 'warehouse_id']);
        });
    }

    public function down(): void
    {
        // Signed ledger entries must never be coerced back to unsigned quantities.
        throw new LogicException('Migração de histórico irreversível; preservar movimentos e usar migrações aditivas.');
    }
};