made usage of first class citizen functions in go

backend-go/internal/application/repository/helper.go

@@ -0,0 +1,14 @@
+package repository
+
+import (
+	"context"
+
+	E "github.com/IBM/fp-go/either"
+)
+
+// curried delegiert eine Methode mit Kontext und gibt eine Funktion zurück.
+func curried[T any, R any](ctx context.Context, fn func(context.Context, T) E.Either[error, R]) func(T) E.Either[error, R] {
+	return func(input T) E.Either[error, R] {
+		return fn(ctx, input)
+	}
+}

backend-go/internal/application/repository/user_repository_impl.go

@@ -1,9 +1,8 @@
 package repository
 
 import (
-	"actatempus_backend/internal/domain/entities"
-	"actatempus_backend/internal/domain/repository"
 	"actatempus_backend/internal/domain/data"
+	"actatempus_backend/internal/domain/entities"
 	"context"
 
 	E "github.com/IBM/fp-go/either"
@@ -14,37 +13,32 @@ type UserRepositoryImpl struct {
 	dataSource data.UserDataSource
 }
 
-// NewUserRepository creates a new instance of UserRepositoryImpl.
-func NewUserRepository(dataSource data.UserDataSource) repository.UserRepository {
-	return &UserRepositoryImpl{dataSource: dataSource}
+// Create delegiert die Erstellung eines Benutzers an die Datenquelle.
+func (r *UserRepositoryImpl) Create(ctx context.Context) func(user entities.UserCreate) E.Either[error, entities.User] {
+	return curried(ctx, r.dataSource.Create)
 }
 
-// Create delegates the creation of a user to the data source.
-func (r *UserRepositoryImpl) Create(ctx context.Context, user entities.UserCreate) E.Either[error, entities.User] {
-	return r.dataSource.Create(ctx, user)
+// FindByID delegiert das Abrufen eines Benutzers nach ID an die Datenquelle.
+func (r *UserRepositoryImpl) FindByID(ctx context.Context) func(id string) E.Either[error, entities.User] {
+	return curried(ctx, r.dataSource.FindByID)
 }
 
-// FindByID delegates fetching a user by ID to the data source.
-func (r *UserRepositoryImpl) FindByID(ctx context.Context, id string) E.Either[error, entities.User] {
-	return r.dataSource.FindByID(ctx, id)
+// FindByEmail delegiert das Abrufen eines Benutzers nach E-Mail an die Datenquelle.
+func (r *UserRepositoryImpl) FindByEmail(ctx context.Context) func(email string) E.Either[error, entities.User] {
+	return curried(ctx, r.dataSource.FindByEmail)
 }
 
-// FindByEmail delegates fetching a user by email to the data source.
-func (r *UserRepositoryImpl) FindByEmail(ctx context.Context, email string) E.Either[error, entities.User] {
-	return r.dataSource.FindByEmail(ctx, email)
+// Update delegiert das Aktualisieren eines Benutzers an die Datenquelle.
+func (r *UserRepositoryImpl) Update(ctx context.Context) func(user entities.UserUpdate) E.Either[error, entities.User] {
+	return curried(ctx, r.dataSource.Update)
 }
 
-// Update delegates updating a user to the data source.
-func (r *UserRepositoryImpl) Update(ctx context.Context, user entities.UserUpdate) E.Either[error, entities.User] {
-	return r.dataSource.Update(ctx, user)
+// Delete delegiert das Löschen eines Benutzers an die Datenquelle.
+func (r *UserRepositoryImpl) Delete(ctx context.Context) func(id string) E.Either[error, entities.User] {
+	return curried(ctx, r.dataSource.Delete)
 }
 
-// Delete delegates deleting a user to the data source.
-func (r *UserRepositoryImpl) Delete(ctx context.Context, id string) E.Either[error, entities.User] {
-	return r.dataSource.Delete(ctx, id)
-}
-
-// FindAll delegates fetching all users to the data source.
+// FindAll delegiert das Abrufen aller Benutzer an die Datenquelle.
 func (r *UserRepositoryImpl) FindAll(ctx context.Context) E.Either[error, []entities.User] {
 	return r.dataSource.FindAll(ctx)
 }