Implement user login with password hash verification and username lookup

internal/auth/password.go

@@ -8,3 +8,8 @@ func HashPassword(password string) (string, error) {
 	bytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
 	return string(bytes), err
 }
+
+func CheckPasswordHash(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}

internal/models/requestModels/login.go

@@ -0,0 +1,6 @@
+package requestmodels
+
+type LoginInput struct {
+	Username string `json:"username" binding:"required"`
+	Password string `json:"password" binding:"required"`
+}

internal/repositories/userRepo.go

@@ -1 +0,0 @@
-package repositories

internal/services/userService.go

@@ -16,3 +16,9 @@ func NewUserService(db *gorm.DB) *UserService {
 func (us *UserService) CreateUser(user models.ComUser) int {
 	return int(us.db.Create(&user).RowsAffected)
 }
+
+func (us *UserService) GetUserByUsername(username string) models.ComUser {
+	var user models.ComUser
+	us.db.Where("username = ?", username).First(&user)
+	return user
+}

internal/web/handlers/admin/adminDash.go

@@ -61,15 +61,30 @@ func (appContext *AdminDashboardHandler) Register(c *gin.Context) {
 			"success": false,
 			"error": "failed to create user",
 		})
+	} else {
+		c.JSON(200, gin.H{
+			"success": true,
+		})
 	}
-
-	c.JSON(200, gin.H{
-		"success": true,
-	})
 }
 
 func (appContext *AdminDashboardHandler) Login(c *gin.Context) {
-	c.JSON(200, gin.H{
-		"YouAreOn": "Login",
-	})
+
+	var input requestmodels.LoginInput
+
+	if err := c.ShouldBindJSON(&input); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	var user = appContext.AppContext.UserService.GetUserByUsername(input.Username)
+	if auth.CheckPasswordHash(input.Password, user.Password) && user.IsVerified { // TODO: Add verification process
+		c.JSON(200, gin.H{
+			"success": true,
+		})
+	} else {
+		c.JSON(200, gin.H{
+			"success": false,
+		})
+	}
 }