feat: standardize error handling and response format

cmd/main.go

@@ -2,7 +2,9 @@ package main
 
 import (
 	"net/http"
+	"os"
 
+	_ "github.com/FelipeAJdev/dev-cloud-challenge/docs" // Importa os documentos gerados pelo swagger
 	"github.com/FelipeAJdev/dev-cloud-challenge/internal/handlers"
 	"github.com/FelipeAJdev/dev-cloud-challenge/internal/repository"
 	"github.com/FelipeAJdev/dev-cloud-challenge/internal/services"
@@ -13,6 +15,7 @@ import (
 	"github.com/gorilla/mux"
 	"github.com/joho/godotenv"
 	logrus "github.com/sirupsen/logrus"
+	httpSwagger "github.com/swaggo/http-swagger"
 )
 
 // @title API de Gestão de Alunos
@@ -25,38 +28,10 @@ import (
 // @host localhost:8080
 // @BasePath /
 // @schemes http
-
-func initLogger() *logrus.Logger {
-	log := logrus.New()
-	log.SetFormatter(&logrus.JSONFormatter{})
-	log.SetLevel(logrus.InfoLevel)
-	return log
-}
-
-func runMigrations(databaseURL string, log *logrus.Logger) {
-	m, err := migrate.New(
-		"file://./internal/store/pgstore/migrations",
-		databaseURL)
-	if err != nil {
-		log.WithFields(logrus.Fields{
-			"error": err,
-			"url":   databaseURL,
-		}).Fatal("Falha ao criar a instância de migrate")
-	}
-
-	if err := m.Up(); err != nil && err != migrate.ErrNoChange {
-		log.WithFields(logrus.Fields{
-			"error": err,
-		}).Fatal("Falha ao aplicar migrations")
-	}
-
-	log.Info("Migrations aplicadas com sucesso!")
-}
-
 func main() {
 	log := initLogger()
 
-	if err := godotenv.Load(); err != nil {
+	if err := godotenv.Load("../.env"); err != nil {
 		log.WithFields(logrus.Fields{
 			"error": err,
 		}).Fatal("Erro ao carregar arquivo .env")
@@ -68,16 +43,21 @@ func main() {
 			log.WithFields(logrus.Fields{
 				"error": err,
 			}).Error("Erro ao fechar a conexão com o banco de dados")
+		} else {
+			log.Info("Conexão com o banco de dados fechada com sucesso")
 		}
 	}()
 
-	databaseURL := "postgres://postgres:123456789@localhost:5432/wsrs?sslmode=disable"
+	databaseURL := os.Getenv("DATABASE_URL")
+	if databaseURL == "" {
+		log.Fatal("DATABASE_URL is not set in the environment")
+	}
 
 	runMigrations(databaseURL, log)
 
 	alunoRepository := repository.NewAlunoRepository(database)
 	alunoService := services.NewAlunoService(alunoRepository)
-	alunoHandler := handlers.NewAlunoHandler(alunoService)
+	alunoHandler := handlers.NewAlunoHandler(alunoService, log)
 
 	router := mux.NewRouter()
 
@@ -87,10 +67,39 @@ func main() {
 	router.HandleFunc("/alunos/{id}", alunoHandler.UpdateAluno).Methods("PUT")
 	router.HandleFunc("/alunos/{id}", alunoHandler.DeleteAluno).Methods("DELETE")
 
+	router.PathPrefix("/swagger/").Handler(httpSwagger.WrapHandler)
+
 	log.Info("Servidor rodando na porta 8080")
 	if err := http.ListenAndServe(":8080", router); err != nil {
 		log.WithFields(logrus.Fields{
 			"error": err,
 		}).Fatal("Erro ao iniciar o servidor HTTP")
 	}
 }
+
+func initLogger() *logrus.Logger {
+	log := logrus.New()
+	log.SetFormatter(&logrus.JSONFormatter{})
+	log.SetLevel(logrus.InfoLevel)
+	return log
+}
+
+func runMigrations(databaseURL string, log *logrus.Logger) {
+	m, err := migrate.New(
+		"file://../internal/store/pgstore/migrations",
+		databaseURL)
+	if err != nil {
+		log.WithFields(logrus.Fields{
+			"error": err,
+			"url":   databaseURL,
+		}).Fatal("Falha ao criar a instância de migrate")
+	}
+
+	if err := m.Up(); err != nil && err != migrate.ErrNoChange {
+		log.WithFields(logrus.Fields{
+			"error": err,
+		}).Fatal("Falha ao aplicar migrations")
+	}
+
+	log.Info("Migrations aplicadas com sucesso!")
+}