refac: runtime settings are read once at startup and passed in through the composition root; no handler, router or repository reads environment variables

api/dependecyInjection.go

@@ -5,6 +5,7 @@ import (
 	domainImage "RenewCMS/internal/domain/image"
 	domainMail "RenewCMS/internal/domain/mail"
 	domainUser "RenewCMS/internal/domain/user"
+	"RenewCMS/internal/infrastructure/config"
 	"RenewCMS/internal/infrastructure/hashing"
 	"RenewCMS/internal/infrastructure/mailer"
 	"RenewCMS/internal/infrastructure/persistence/models"
@@ -43,8 +44,7 @@ type Repositories struct {
 	MailRepo    domainMail.Repository
 }
 
-func getDb() *gorm.DB {
-	dbName := os.Getenv("DB_FILE")
+func getDb(dbName string) *gorm.DB {
 	if err := os.MkdirAll(filepath.Dir(dbName), os.ModePerm); err != nil {
 		panic("Unable to create necessary subdirectories: " + err.Error())
 	}
@@ -60,20 +60,20 @@ func getDb() *gorm.DB {
 	return db
 }
 
-func getRepositories(db *gorm.DB) *Repositories {
+func getRepositories(db *gorm.DB, settings config.Settings) *Repositories {
 	return &Repositories{
 		ArticleRepo: persistence.NewArticleRepository(db),
 		UserRepo:    persistence.NewUserRepository(db),
-		ImageRepo:   persistence.NewImageRepository(db),
-		MailRepo:    mailer.NewMailRepository(),
+		ImageRepo:   persistence.NewImageRepository(db, settings.UploadDir),
+		MailRepo:    mailer.NewMailRepository(settings.Smtp),
 	}
 }
 
-func getUseCases(repos *Repositories) *UseCases {
+func getUseCases(repos *Repositories, settings config.Settings) *UseCases {
 	hasher := hashing.NewBcryptHasher()
 
 	return &UseCases{
-		Token:                   jwtauth.New("HS256", []byte(os.Getenv("JWT_SECRET")), nil),
+		Token:                   jwtauth.New("HS256", []byte(settings.JWTSecret), nil),
 		CreateArticleUseCase:    useCases.NewCreateArticleUseCase(repos.ArticleRepo),
 		GetArticleUseCase:       useCases.NewGetArticleUseCase(repos.ArticleRepo),
 		ListArticlesUseCase:     useCases.NewListArticlesUseCase(repos.ArticleRepo),
@@ -91,10 +91,10 @@ func getUseCases(repos *Repositories) *UseCases {
 	}
 }
 
-func InitContainer() (*UseCases, func() error) {
-	db := getDb()
-	repos := getRepositories(db)
-	return getUseCases(repos), closeDb(db)
+func InitContainer(settings config.Settings) (*UseCases, func() error) {
+	db := getDb(settings.DBFile)
+	repos := getRepositories(db, settings)
+	return getUseCases(repos, settings), closeDb(db)
 }
 
 func closeDb(db *gorm.DB) func() error {