Valida concorrencia e aplica orcamento com recuperacao verificada

tests/Concurrency/budget-worker.php

@@ -0,0 +1,36 @@
+<?php
+
+use App\Models\Requisition;
+use App\Models\User;
+use App\Services\BudgetWorkflow;
+use App\Services\ConflictGuard;
+use Illuminate\Contracts\Console\Kernel;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Validation\ValidationException;
+
+require __DIR__.'/../../vendor/autoload.php';
+$database = $argv[1] ?? '';
+if (! preg_match('/^compras_receipts_test_[a-f0-9]{12}$/', $database)) {
+    throw new LogicException('Base de teste inválida.');
+}
+$app = require __DIR__.'/../../bootstrap/app.php';
+$app->make(Kernel::class)->bootstrap();
+if (! $app->environment('testing') || DB::connection()->getDatabaseName() !== $database) {
+    throw new LogicException('Worker não isolado.');
+}
+DB::select('select set_config(?, ?, false)', ['application_name', 'sgc_budget_'.$argv[4]]);
+$pid = DB::selectOne('select pg_backend_pid() as pid')->pid;
+$user = User::query()->findOrFail($argv[2]);
+auth()->guard()->setUser($user);
+$payload = json_decode(stream_get_contents(STDIN), true, 512, JSON_THROW_ON_ERROR);
+try {
+    DB::transaction(function () use ($user, $argv, $payload) {
+        app(ConflictGuard::class)->lockCompany($user);
+        $requisition = Requisition::query()->lockForUpdate()->findOrFail($argv[3]);
+        app(BudgetWorkflow::class)->record($user, $requisition, $payload['kind'], $payload['amount'], $payload['amount']);
+    });
+    $status = 200;
+} catch (ValidationException) {
+    $status = 422;
+}
+echo json_encode(['status' => $status, 'backend_pid' => $pid], JSON_THROW_ON_ERROR);