kontor-echo: setup project to show homepage

kontor-echo/internal/service/auth.go

@@ -0,0 +1,47 @@
+package service
+
+import (
+	"kontor-api-echo/internal/helpers"
+	"kontor-api-echo/internal/repository"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+type AuthService struct {
+	repository *repository.ProfileRepository
+}
+
+func NewAuthService(repository *repository.ProfileRepository) *AuthService {
+	service := &AuthService{repository: repository}
+	return service
+}
+
+func VerifyPassword(password, hashedPassword string) error {
+	return bcrypt.CompareHashAndPassword([]byte(hashedPassword), []byte(password))
+}
+
+func (service *AuthService) LoginCheck(email string, password string) (string, error) {
+
+	var err error
+
+	profile, err := service.repository.FindProfileByEmail(email)
+
+	if err != nil {
+		return "", err
+	}
+
+	err = VerifyPassword(password, profile.Password)
+
+	if err != nil && err == bcrypt.ErrMismatchedHashAndPassword {
+		return "", err
+	}
+
+	token, err := helpers.GenerateToken(profile.ID)
+
+	if err != nil {
+		return "", err
+	}
+
+	return token, nil
+
+}