Generete Module Handler

internal/handlers/auth/auth.go

@@ -0,0 +1,132 @@
+package handlers
+
+import (
+	models "api-service/internal/models/auth"
+	services "api-service/internal/services/auth"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+// AuthHandler handles authentication endpoints
+type AuthHandler struct {
+	authService *services.AuthService
+}
+
+// NewAuthHandler creates a new authentication handler
+func NewAuthHandler(authService *services.AuthService) *AuthHandler {
+	return &AuthHandler{
+		authService: authService,
+	}
+}
+
+// Login godoc
+// @Summary Login user and get JWT token
+// @Description Authenticate user with username and password to receive JWT token
+// @Tags Authentication
+// @Accept json
+// @Produce json
+// @Param login body models.LoginRequest true "Login credentials"
+// @Success 200 {object} models.TokenResponse
+// @Failure 400 {object} map[string]string "Bad request"
+// @Failure 401 {object} map[string]string "Unauthorized"
+// @Router /api/v1/auth/login [post]
+func (h *AuthHandler) Login(c *gin.Context) {
+	var loginReq models.LoginRequest
+
+	// Bind JSON request
+	if err := c.ShouldBindJSON(&loginReq); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	// Authenticate user
+	tokenResponse, err := h.authService.Login(loginReq.Username, loginReq.Password)
+	if err != nil {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, tokenResponse)
+}
+
+// RefreshToken godoc
+// @Summary Refresh JWT token
+// @Description Refresh the JWT token using a valid refresh token
+// @Tags Authentication
+// @Accept json
+// @Produce json
+// @Param refresh body map[string]string true "Refresh token"
+// @Success 200 {object} models.TokenResponse
+// @Failure 400 {object} map[string]string "Bad request"
+// @Failure 401 {object} map[string]string "Unauthorized"
+// @Router /api/v1/auth/refresh [post]
+func (h *AuthHandler) RefreshToken(c *gin.Context) {
+	// For now, this is a placeholder for refresh token functionality
+	// In a real implementation, you would handle refresh tokens here
+	c.JSON(http.StatusNotImplemented, gin.H{"error": "refresh token not implemented"})
+}
+
+// Register godoc
+// @Summary Register new user
+// @Description Register a new user account
+// @Tags Authentication
+// @Accept json
+// @Produce json
+// @Param register body map[string]string true "Registration data"
+// @Success 201 {object} map[string]string
+// @Failure 400 {object} map[string]string "Bad request"
+// @Router /api/v1/auth/register [post]
+func (h *AuthHandler) Register(c *gin.Context) {
+	var registerReq struct {
+		Username string `json:"username" binding:"required"`
+		Email    string `json:"email" binding:"required,email"`
+		Password string `json:"password" binding:"required,min=6"`
+		Role     string `json:"role" binding:"required"`
+	}
+
+	if err := c.ShouldBindJSON(&registerReq); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	err := h.authService.RegisterUser(
+		registerReq.Username,
+		registerReq.Email,
+		registerReq.Password,
+		registerReq.Role,
+	)
+
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusCreated, gin.H{"message": "user registered successfully"})
+}
+
+// Me godoc
+// @Summary Get current user info
+// @Description Get information about the currently authenticated user
+// @Tags Authentication
+// @Produce json
+// @Security Bearer
+// @Success 200 {object} models.User
+// @Failure 401 {object} map[string]string "Unauthorized"
+// @Router /api/v1/auth/me [get]
+func (h *AuthHandler) Me(c *gin.Context) {
+	// Get user info from context (set by middleware)
+	userID, exists := c.Get("user_id")
+	if !exists {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "user not authenticated"})
+		return
+	}
+
+	// In a real implementation, you would fetch user details from database
+	c.JSON(http.StatusOK, gin.H{
+		"id":       userID,
+		"username": c.GetString("username"),
+		"email":    c.GetString("email"),
+		"role":     c.GetString("role"),
+	})
+}