init

server/internal/service/admin.go

@@ -0,0 +1,226 @@
+package service
+
+import (
+	"dianshang/internal/model"
+	"dianshang/internal/repository"
+	"dianshang/pkg/jwt"
+	"errors"
+	"time"
+
+	"golang.org/x/crypto/bcrypt"
+	"gorm.io/gorm"
+)
+
+// AdminService 管理员服务
+type AdminService struct {
+	adminRepo *repository.AdminRepository
+	db        *gorm.DB
+}
+
+// NewAdminService 创建管理员服务
+func NewAdminService(db *gorm.DB) *AdminService {
+	return &AdminService{
+		adminRepo: repository.NewAdminRepository(db),
+		db:        db,
+	}
+}
+
+// LoginRequest 管理员登录请求
+type LoginRequest struct {
+	Username string `json:"username" binding:"required"`
+	Password string `json:"password" binding:"required"`
+}
+
+// CreateAdminRequest 创建管理员请求
+type CreateAdminRequest struct {
+	Username string `json:"username" binding:"required"`
+	Password string `json:"password" binding:"required,min=6"`
+	Nickname string `json:"nickname"`
+	Email    string `json:"email"`
+	Phone    string `json:"phone"`
+	RoleID   uint   `json:"role_id" binding:"required"`
+}
+
+// UpdateAdminRequest 更新管理员请求
+type UpdateAdminRequest struct {
+	Nickname string `json:"nickname"`
+	Email    string `json:"email"`
+	Phone    string `json:"phone"`
+	RoleID   uint   `json:"role_id"`
+	Status   *uint8 `json:"status"`
+}
+
+// AdminLoginResponse 管理员登录响应
+type AdminLoginResponse struct {
+	Token     string           `json:"token"`
+	AdminUser *model.AdminUser `json:"admin_user"`
+}
+
+// Login 管理员登录
+func (s *AdminService) Login(req *LoginRequest) (*AdminLoginResponse, error) {
+	// 查找管理员
+	admin, err := s.adminRepo.GetByUsername(req.Username)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, errors.New("用户名或密码错误")
+		}
+		return nil, err
+	}
+
+	// 检查管理员状态
+	if admin.Status == 0 {
+		return nil, errors.New("账户已被禁用")
+	}
+
+	// 验证密码
+	if err := bcrypt.CompareHashAndPassword([]byte(admin.Password), []byte(req.Password)); err != nil {
+		return nil, errors.New("用户名或密码错误")
+	}
+
+	// 生成JWT token
+	tokenExpiry := 8 * 3600 // 8小时有效期
+	token, err := jwt.GenerateToken(admin.ID, "admin", tokenExpiry)
+	if err != nil {
+		return nil, errors.New("生成token失败")
+	}
+
+	// 更新最后登录时间
+	now := time.Now()
+	admin.LastLogin = &now
+	s.adminRepo.Update(admin.ID, map[string]interface{}{
+		"last_login": now,
+	})
+
+	// 加载角色信息
+	admin, _ = s.adminRepo.GetByIDWithRole(admin.ID)
+
+	return &AdminLoginResponse{
+		Token:     token,
+		AdminUser: admin,
+	}, nil
+}
+
+// CreateAdmin 创建管理员
+func (s *AdminService) CreateAdmin(req *CreateAdminRequest) (*model.AdminUser, error) {
+	// 检查用户名是否已存在
+	if _, err := s.adminRepo.GetByUsername(req.Username); err == nil {
+		return nil, errors.New("用户名已存在")
+	}
+
+	// 加密密码
+	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(req.Password), bcrypt.DefaultCost)
+	if err != nil {
+		return nil, errors.New("密码加密失败")
+	}
+
+	// 创建管理员
+	admin := &model.AdminUser{
+		Username: req.Username,
+		Password: string(hashedPassword),
+		Nickname: req.Nickname,
+		Email:    req.Email,
+		Phone:    req.Phone,
+		RoleID:   req.RoleID,
+		Status:   1, // 默认启用
+	}
+
+	if err := s.adminRepo.Create(admin); err != nil {
+		return nil, err
+	}
+
+	// 返回时不包含密码
+	admin.Password = ""
+	return admin, nil
+}
+
+// GetAdminList 获取管理员列表
+func (s *AdminService) GetAdminList(page, pageSize int, keyword string) ([]model.AdminUser, int64, error) {
+	return s.adminRepo.GetList(page, pageSize, keyword)
+}
+
+// GetAdminByID 根据ID获取管理员
+func (s *AdminService) GetAdminByID(id uint) (*model.AdminUser, error) {
+	return s.adminRepo.GetByIDWithRole(id)
+}
+
+// UpdateAdmin 更新管理员
+func (s *AdminService) UpdateAdmin(id uint, req *UpdateAdminRequest) error {
+	updates := make(map[string]interface{})
+	
+	if req.Nickname != "" {
+		updates["nickname"] = req.Nickname
+	}
+	if req.Email != "" {
+		updates["email"] = req.Email
+	}
+	if req.Phone != "" {
+		updates["phone"] = req.Phone
+	}
+	if req.RoleID != 0 {
+		updates["role_id"] = req.RoleID
+	}
+	if req.Status != nil {
+		updates["status"] = *req.Status
+	}
+
+	return s.adminRepo.Update(id, updates)
+}
+
+// DeleteAdmin 删除管理员
+func (s *AdminService) DeleteAdmin(id uint) error {
+	return s.adminRepo.Delete(id)
+}
+
+// ChangePassword 修改密码
+func (s *AdminService) ChangePassword(id uint, oldPassword, newPassword string) error {
+	// 获取管理员信息
+	admin, err := s.adminRepo.GetByID(id)
+	if err != nil {
+		return err
+	}
+
+	// 验证旧密码
+	if err := bcrypt.CompareHashAndPassword([]byte(admin.Password), []byte(oldPassword)); err != nil {
+		return errors.New("原密码错误")
+	}
+
+	// 加密新密码
+	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(newPassword), bcrypt.DefaultCost)
+	if err != nil {
+		return errors.New("密码加密失败")
+	}
+
+	// 更新密码
+	return s.adminRepo.Update(id, map[string]interface{}{
+		"password": string(hashedPassword),
+	})
+}
+
+// GetProfile 获取管理员个人信息
+func (s *AdminService) GetProfile(id uint) (*model.AdminUser, error) {
+	admin, err := s.adminRepo.GetByIDWithRole(id)
+	if err != nil {
+		return nil, err
+	}
+	
+	// 不返回密码
+	admin.Password = ""
+	return admin, nil
+}
+
+// UpdateProfile 更新管理员个人信息
+func (s *AdminService) UpdateProfile(id uint, nickname, email, phone string) error {
+	updates := make(map[string]interface{})
+	
+	if nickname != "" {
+		updates["nickname"] = nickname
+	}
+	if email != "" {
+		updates["email"] = email
+	}
+	if phone != "" {
+		updates["phone"] = phone
+	}
+
+	return s.adminRepo.Update(id, updates)
+}