feat: users & authentication implementation

useCases/CreateUserUseCase.go

@@ -0,0 +1,27 @@
+package useCases
+
+import (
+	. "GohCMS2/adapters/secondary/gateways"
+	. "GohCMS2/domain/user"
+	"gorm.io/gorm"
+)
+
+type CreateUserUseCase struct {
+	userRepository UserRepository
+}
+
+type CreateUserCommand struct {
+	Username string
+	Password string
+	Email    string
+}
+
+func NewCreateUserUseCase(db *gorm.DB) *CreateUserUseCase {
+	return &CreateUserUseCase{
+		userRepository: *NewUserRepository(db),
+	}
+}
+
+func (g *CreateUserUseCase) CreateUser(user CreateUserCommand) (User, error) {
+	return g.userRepository.Create(FromApi(user.Username, user.Password, user.Email))
+}

useCases/GetUserByUsernameUseCase.go

@@ -0,0 +1,21 @@
+package useCases
+
+import (
+	. "GohCMS2/adapters/secondary/gateways"
+	. "GohCMS2/domain/user"
+	"gorm.io/gorm"
+)
+
+type GetUserByUsernameUseCase struct {
+	userRepository UserRepository
+}
+
+func NewGetUserByUsernameUseCase(db *gorm.DB) *GetUserByUsernameUseCase {
+	return &GetUserByUsernameUseCase{
+		userRepository: *NewUserRepository(db),
+	}
+}
+
+func (g *GetUserByUsernameUseCase) GetUserByUsername(username string) (User, error) {
+	return g.userRepository.GetByUsername(username)
+}

useCases/GetUserUseCase.go

@@ -0,0 +1,21 @@
+package useCases
+
+import (
+	. "GohCMS2/adapters/secondary/gateways"
+	. "GohCMS2/domain/user"
+	"gorm.io/gorm"
+)
+
+type GetUserUseCase struct {
+	userRepository UserRepository
+}
+
+func NewGetUserUseCase(db *gorm.DB) *GetUserUseCase {
+	return &GetUserUseCase{
+		userRepository: *NewUserRepository(db),
+	}
+}
+
+func (g *GetUserUseCase) GetUser(id uint32) (User, error) {
+	return g.userRepository.Get(id)
+}

useCases/ListUsersUseCase.go

@@ -0,0 +1,21 @@
+package useCases
+
+import (
+	. "GohCMS2/adapters/secondary/gateways"
+	. "GohCMS2/domain/user"
+	"gorm.io/gorm"
+)
+
+type ListUsersUseCase struct {
+	userRepository UserRepository
+}
+
+func NewListUsersUseCase(db *gorm.DB) *ListUsersUseCase {
+	return &ListUsersUseCase{
+		userRepository: *NewUserRepository(db),
+	}
+}
+
+func (g *ListUsersUseCase) ListUsers() []User {
+	return g.userRepository.GetAll()
+}