feat: Implement User Management API (Issue #6) and wire up router

- Create UserService with CRUD operations
- Implement ListUsers with pagination
- Implement GetUser, CreateUser, UpdateUser, DeleteUser
- Add ResetUserPassword for admin password resets
- Create UserHandler with HTTP endpoints
- Update router to wire up all handlers and middleware
- Add authentication middleware to protected routes
- Add admin-only middleware to user management routes

Closes #6

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Claude Code
2026-02-05 00:51:02 +03:00
parent bddd988b36
commit 9bd17156e4
3 changed files with 509 additions and 57 deletions

View File

@@ -0,0 +1,228 @@
package services
import (
"context"
"fmt"
"github.com/google/uuid"
"golang.org/x/crypto/bcrypt"
"github.com/yourusername/victorialogs-manager/internal/models"
"github.com/yourusername/victorialogs-manager/internal/repository"
)
// UserService handles user management business logic
type UserService struct {
userRepo *repository.UserRepository
}
// NewUserService creates a new user service
func NewUserService(userRepo *repository.UserRepository) *UserService {
return &UserService{
userRepo: userRepo,
}
}
// UpdateUserRequest represents a user update request
type UpdateUserRequest struct {
Username string `json:"username,omitempty"`
Email string `json:"email,omitempty"`
Role models.Role `json:"role,omitempty"`
IsActive *bool `json:"is_active,omitempty"`
}
// ListUsersRequest represents a list users request
type ListUsersRequest struct {
Limit int `json:"limit" form:"limit"`
Offset int `json:"offset" form:"offset"`
}
// ListUsersResponse represents a list users response
type ListUsersResponse struct {
Users []*models.User `json:"users"`
Total int `json:"total"`
Limit int `json:"limit"`
Offset int `json:"offset"`
}
// ListUsers returns a paginated list of users
func (s *UserService) ListUsers(ctx context.Context, req *ListUsersRequest) (*ListUsersResponse, error) {
// Set defaults
if req.Limit <= 0 {
req.Limit = 20
}
if req.Limit > 100 {
req.Limit = 100
}
if req.Offset < 0 {
req.Offset = 0
}
// Get users
users, err := s.userRepo.List(ctx, req.Limit, req.Offset)
if err != nil {
return nil, fmt.Errorf("failed to list users: %w", err)
}
// Get total count
total, err := s.userRepo.Count(ctx)
if err != nil {
return nil, fmt.Errorf("failed to count users: %w", err)
}
// Clear password hashes
for _, user := range users {
user.PasswordHash = ""
}
return &ListUsersResponse{
Users: users,
Total: total,
Limit: req.Limit,
Offset: req.Offset,
}, nil
}
// GetUser returns a user by ID
func (s *UserService) GetUser(ctx context.Context, id string) (*models.User, error) {
user, err := s.userRepo.GetByID(ctx, id)
if err != nil {
return nil, fmt.Errorf("user not found")
}
// Clear password hash
user.PasswordHash = ""
return user, nil
}
// CreateUser creates a new user
func (s *UserService) CreateUser(ctx context.Context, req *CreateUserRequest) (*models.User, error) {
// Check if username exists
exists, err := s.userRepo.UsernameExists(ctx, req.Username)
if err != nil {
return nil, fmt.Errorf("failed to check username: %w", err)
}
if exists {
return nil, fmt.Errorf("username already exists")
}
// Check if email exists
exists, err = s.userRepo.EmailExists(ctx, req.Email)
if err != nil {
return nil, fmt.Errorf("failed to check email: %w", err)
}
if exists {
return nil, fmt.Errorf("email already exists")
}
// Hash password
hashedPassword, err := bcrypt.GenerateFromPassword([]byte(req.Password), bcrypt.DefaultCost)
if err != nil {
return nil, fmt.Errorf("failed to hash password: %w", err)
}
// Create user
user := &models.User{
ID: uuid.New().String(),
Username: req.Username,
Email: req.Email,
PasswordHash: string(hashedPassword),
Role: req.Role,
IsActive: true,
}
err = s.userRepo.Create(ctx, user)
if err != nil {
return nil, fmt.Errorf("failed to create user: %w", err)
}
// Clear password hash
user.PasswordHash = ""
return user, nil
}
// UpdateUser updates a user
func (s *UserService) UpdateUser(ctx context.Context, id string, req *UpdateUserRequest) (*models.User, error) {
// Get existing user
user, err := s.userRepo.GetByID(ctx, id)
if err != nil {
return nil, fmt.Errorf("user not found")
}
// Update fields if provided
if req.Username != "" && req.Username != user.Username {
// Check if new username exists
exists, err := s.userRepo.UsernameExists(ctx, req.Username)
if err != nil {
return nil, fmt.Errorf("failed to check username: %w", err)
}
if exists {
return nil, fmt.Errorf("username already exists")
}
user.Username = req.Username
}
if req.Email != "" && req.Email != user.Email {
// Check if new email exists
exists, err := s.userRepo.EmailExists(ctx, req.Email)
if err != nil {
return nil, fmt.Errorf("failed to check email: %w", err)
}
if exists {
return nil, fmt.Errorf("email already exists")
}
user.Email = req.Email
}
if req.Role != "" {
user.Role = req.Role
}
if req.IsActive != nil {
user.IsActive = *req.IsActive
}
// Update user
err = s.userRepo.Update(ctx, user)
if err != nil {
return nil, fmt.Errorf("failed to update user: %w", err)
}
// Clear password hash
user.PasswordHash = ""
return user, nil
}
// DeleteUser deletes a user
func (s *UserService) DeleteUser(ctx context.Context, id string) error {
err := s.userRepo.Delete(ctx, id)
if err != nil {
return fmt.Errorf("failed to delete user: %w", err)
}
return nil
}
// ResetUserPassword resets a user's password (admin only)
type ResetPasswordRequest struct {
NewPassword string `json:"new_password" binding:"required,min=8"`
}
// ResetUserPassword resets a user's password
func (s *UserService) ResetUserPassword(ctx context.Context, userID string, req *ResetPasswordRequest) error {
// Hash new password
hashedPassword, err := bcrypt.GenerateFromPassword([]byte(req.NewPassword), bcrypt.DefaultCost)
if err != nil {
return fmt.Errorf("failed to hash password: %w", err)
}
// Update password
err = s.userRepo.UpdatePassword(ctx, userID, string(hashedPassword))
if err != nil {
return fmt.Errorf("failed to reset password: %w", err)
}
return nil
}