From 063e677869d6c732022e27aac994a53a88e03ac1 Mon Sep 17 00:00:00 2001
From: James Tombleson <luther38@gmail.com>
Date: Tue, 26 Mar 2024 17:52:15 -0700
Subject: [PATCH] trying to remove the user repo and use a service

---
 .vscode/settings.json                         |   9 ++
 api/services/userService.go                   | 105 ++++++++++++++++++
 .../{users_test.go => userService_test.go}    |   0
 api/services/users.go                         |  43 -------
 4 files changed, 114 insertions(+), 43 deletions(-)
 create mode 100644 api/services/userService.go
 rename api/services/{users_test.go => userService_test.go} (100%)
 delete mode 100644 api/services/users.go

diff --git a/.vscode/settings.json b/.vscode/settings.json
index ae2f0c1..a160986 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,9 +1,18 @@
 {
     "cSpell.words": [
+        "echojwt",
         "glebarez",
         "gocook",
         "huandu",
         "labstack",
         "sqlbuilder"
+    ],
+    "sqltools.connections": [
+        {
+            "previewLimit": 50,
+            "driver": "SQLite",
+            "database": "${workspaceFolder:go-cook}/gocook.db",
+            "name": "gocook"
+        }
     ]
 }
\ No newline at end of file
diff --git a/api/services/userService.go b/api/services/userService.go
new file mode 100644
index 0000000..2a7e83f
--- /dev/null
+++ b/api/services/userService.go
@@ -0,0 +1,105 @@
+package services
+
+import (
+	"database/sql"
+	"errors"
+	"go-cook/api/models"
+	"go-cook/api/repositories"
+	"strings"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+const (
+	ErrPasswordNotLongEnough           = "password needs to be 8 character or longer"
+	ErrPasswordMissingSpecialCharacter = "password needs to contain one of the following: !, @, #"
+	ErrInvalidPassword                 = "invalid password"
+)
+
+// This will handle operations that are user related, but one layer higher then the repository
+type UserService struct {
+	repo repositories.IUserTable
+}
+
+func NewUserService(conn *sql.DB) UserService {
+	return UserService{
+		repo: repositories.NewUserRepository(conn),
+	}
+}
+
+func (us UserService) DoesUserExist(username string) error {
+	_, err := us.repo.GetByName(username)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (us UserService) DoesPasswordMatchHash(username, password string) error {
+	passwordBytes := []byte(password)
+	hash, err := bcrypt.GenerateFromPassword(passwordBytes, bcrypt.DefaultCost)
+	if err != nil {
+		return err
+	}
+
+	model, err := us.GetUser(username)
+	if err != nil {
+		return err
+	}
+
+	if model.Hash != string(hash) {
+		return errors.New(ErrInvalidPassword)
+	}
+
+	return nil
+}
+
+func (us UserService) GetUser(username string) (models.UserModel, error) {
+	return us.repo.GetByName(username)
+}
+
+func (us UserService) CreateNewUser(name, password string) (models.UserModel, error) {
+	err := us.CheckPasswordForRequirements(password)
+	if err != nil {
+		return models.UserModel{}, err
+	}
+
+	us.repo.Create(name, password)
+	return models.UserModel{}, nil
+}
+
+func (us UserService) CheckPasswordForRequirements(password string) error {
+	err := us.checkPasswordLength(password)
+	if err != nil {
+		return err
+	}
+
+	err = us.checkPasswordForSpecialCharacters(password)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (us UserService) checkPasswordLength(password string) error {
+	if len(password) <= 8 {
+		return errors.New(ErrPasswordNotLongEnough)
+	}
+	return nil
+}
+
+func (us UserService) checkPasswordForSpecialCharacters(password string) error {
+	var chars []string
+	chars = append(chars, "!")
+	chars = append(chars, "@")
+	chars = append(chars, "#")
+
+	for _, char := range chars {
+		if strings.Contains(password, char) {
+			return nil
+		}
+	}
+
+	return errors.New(ErrPasswordMissingSpecialCharacter)
+}
diff --git a/api/services/users_test.go b/api/services/userService_test.go
similarity index 100%
rename from api/services/users_test.go
rename to api/services/userService_test.go
diff --git a/api/services/users.go b/api/services/users.go
deleted file mode 100644
index bb2d355..0000000
--- a/api/services/users.go
+++ /dev/null
@@ -1,43 +0,0 @@
-package services
-
-import (
-	"database/sql"
-	"errors"
-	"go-cook/api/models"
-	"go-cook/api/repositories"
-)
-
-const (
-	ErrPasswordNotLongEnough = "password needs to be 8 character or longer"
-)
-
-// This will handle operations that are user related, but one layer higher then the repository
-type UserService struct {
-	repo repositories.UserRepository
-}
-
-func NewUserService(conn *sql.DB) UserService {
-	return UserService{
-		repo: repositories.NewUserRepository(conn),
-	}
-}
-
-func (us UserService) DoesUserExist(username string) error {
-	_, err := us.repo.GetByName(username)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-func (us UserService) CreateNewUser(name, password string) (models.UserModel, error) {
-	us.repo.NewUser(name, password)
-	return models.UserModel{}, nil
-}
-
-func (us UserService) CheckPasswordForRequirements(password string) error {
-	if len(password) <= 8 {
-		return errors.New(ErrPasswordNotLongEnough)
-	}
-	return nil
-}