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path: root/backend/internal/api/handlers/user_handler.go
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package handlers

import (
	"finance/backend/internal/database"
	"finance/backend/internal/models"
	"net/http"

	"github.com/gin-gonic/gin"
)

// UserHandler handles user-related operations
type UserHandler struct {
}

// NewUserHandler creates and returns a new UserHandler instance
func NewUserHandler() *UserHandler {
	return &UserHandler{}
}

// GetCurrentUser returns the authenticated user's information
func (h *UserHandler) GetCurrentUser(c *gin.Context) {
	// Get user from context (set by auth middleware)
	user, exists := c.Get("user")
	if !exists {
		c.JSON(http.StatusNotFound, gin.H{"error": "User not found"})
		return
	}

	c.JSON(http.StatusOK, gin.H{"user": user})
}

// UpdateCurrentUser updates the authenticated user's information
func (h *UserHandler) UpdateCurrentUser(c *gin.Context) {
	userID := c.MustGet("userID").(uint)
	var user models.User

	// Fetch the current user
	if err := database.DB.First(&user, userID).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"error": "User not found"})
		return
	}

	// Define update structure
	type UpdateUserInput struct {
		Name string `json:"name"`
	}

	var input UpdateUserInput
	if err := c.ShouldBindJSON(&input); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	// Update fields if provided
	if input.Name != "" {
		user.Name = input.Name
	}

	// Save the changes
	if err := database.DB.Save(&user).Error; err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to update user"})
		return
	}

	// Hide sensitive data
	user.PasswordHash = ""

	c.JSON(http.StatusOK, gin.H{"user": user})
}