Files
affiliate_dash/backend/internal/service/user.go
T

248 lines
6.8 KiB
Go

package service
import (
"errors"
"affiliate_dash/internal/model"
"golang.org/x/crypto/bcrypt"
"gorm.io/gorm"
)
type UserService struct {
db *gorm.DB
tenant *TenantService
}
func NewUserService(db *gorm.DB, tenant *TenantService) *UserService {
return &UserService{db: db, tenant: tenant}
}
type UserListQuery struct {
MerchantID uint
Page int
Size int
Keyword string
Role string
Status *int
}
func (s *UserService) List(q UserListQuery) ([]model.User, int64, error) {
if q.Page < 1 {
q.Page = 1
}
if q.Size < 1 || q.Size > 100 {
q.Size = 20
}
tx := s.db.Model(&model.User{})
if q.MerchantID != 0 {
tx = tx.Joins("JOIN merchant_members ON merchant_members.user_id = users.id").
Where("merchant_members.merchant_id = ?", q.MerchantID)
}
if q.Keyword != "" {
like := "%" + q.Keyword + "%"
tx = tx.Where("users.username LIKE ? OR users.nickname LIKE ?", like, like)
}
if q.Role != "" {
tx = tx.Where("users.role = ?", q.Role)
}
if q.Status != nil {
tx = tx.Where("users.status = ?", *q.Status)
}
var total int64
if err := tx.Count(&total).Error; err != nil {
return nil, 0, err
}
var list []model.User
err := tx.Order("users.id DESC").Offset((q.Page - 1) * q.Size).Limit(q.Size).Find(&list).Error
return list, total, err
}
func (s *UserService) Create(username, password, nickname, role string, merchantID uint) (*model.User, error) {
var count int64
s.db.Model(&model.User{}).Where("username = ?", username).Count(&count)
if count > 0 {
return nil, errors.New("用户名已存在")
}
if role == "" {
role = model.RoleMerchant
}
if role != model.RoleAdmin && role != model.RoleMerchant {
return nil, errors.New("无效的账号角色")
}
hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return nil, err
}
user := &model.User{
Username: username,
PasswordHash: string(hash),
Nickname: nickname,
Role: role,
Status: 1,
}
if user.Nickname == "" {
user.Nickname = username
}
err = s.db.Transaction(func(tx *gorm.DB) error {
if err := tx.Create(user).Error; err != nil {
return err
}
if s.tenant != nil && merchantID != 0 {
memberRole := model.MemberRoleOperator
if role == model.RoleAdmin {
memberRole = model.MemberRoleOwner
}
member := model.MerchantMember{
MerchantID: merchantID,
UserID: user.ID,
Role: memberRole,
Status: user.Status,
IsDefault: role == model.RoleAdmin,
}
if err := tx.Create(&member).Error; err != nil {
return err
}
}
return nil
})
if err != nil {
return nil, err
}
return user, nil
}
type UpdatePlatformAdminInput struct {
Username string
Nickname string
Password string
Status int
}
func (s *UserService) ListPlatformAdmins(page, size int) ([]model.User, int64, error) {
return s.List(UserListQuery{Page: page, Size: size, Role: model.RoleAdmin})
}
// CreatePlatformAdmin creates an account with platform-only privileges. It
// deliberately does not assign the account to any merchant.
func (s *UserService) CreatePlatformAdmin(username, password, nickname string) (*model.User, error) {
return s.Create(username, password, nickname, model.RoleAdmin, 0)
}
func (s *UserService) UpdatePlatformAdmin(id uint, in UpdatePlatformAdminInput, actorUserID uint) (*model.User, error) {
if id == 0 {
return nil, errors.New("用户不存在")
}
if id == actorUserID {
return nil, errors.New("当前账号请通过右上角账户菜单修改密码")
}
if in.Status != 0 && in.Status != 1 {
return nil, errors.New("用户状态无效")
}
returnUser := &model.User{}
err := s.db.Transaction(func(tx *gorm.DB) error {
var user model.User
if err := tx.First(&user, id).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return errors.New("用户不存在")
}
return err
}
if user.Role != model.RoleAdmin {
return errors.New("只能管理平台管理员账号")
}
if user.Status == 1 && in.Status == 0 {
var admins int64
if err := tx.Model(&model.User{}).Where("role = ? AND status = ?", model.RoleAdmin, 1).Count(&admins).Error; err != nil {
return err
}
if admins <= 1 {
return errors.New("至少保留一个启用的平台管理员")
}
}
if in.Username != user.Username {
var count int64
if err := tx.Model(&model.User{}).Where("username = ? AND id <> ?", in.Username, user.ID).Count(&count).Error; err != nil {
return err
}
if count > 0 {
return errors.New("用户名已存在")
}
}
updates := map[string]interface{}{"username": in.Username, "nickname": in.Nickname, "status": in.Status}
if in.Password != "" {
hash, err := bcrypt.GenerateFromPassword([]byte(in.Password), bcrypt.DefaultCost)
if err != nil {
return err
}
updates["password_hash"] = string(hash)
}
if err := tx.Model(&user).Updates(updates).Error; err != nil {
return err
}
return tx.First(returnUser, user.ID).Error
})
if err != nil {
return nil, err
}
return returnUser, nil
}
func (s *UserService) UpdateStatus(id uint, status int) error {
if status != 0 && status != 1 {
return errors.New("用户状态无效")
}
return s.db.Transaction(func(tx *gorm.DB) error {
var user model.User
if err := tx.First(&user, id).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return errors.New("用户不存在")
}
return err
}
if user.Role == model.RoleAdmin && user.Status == 1 && status == 0 {
var admins int64
if err := tx.Model(&model.User{}).Where("role = ? AND status = ?", model.RoleAdmin, 1).Count(&admins).Error; err != nil {
return err
}
if admins <= 1 {
return errors.New("至少保留一个启用的平台管理员")
}
}
return tx.Model(&user).Update("status", status).Error
})
}
// DeletePlatformAdmin removes a platform-only account. It protects the current
// account and the final enabled platform administrator so the platform cannot be locked out.
func (s *UserService) DeletePlatformAdmin(id, actorUserID uint) error {
if id == 0 {
return errors.New("用户不存在")
}
if id == actorUserID {
return errors.New("不能删除当前登录账号")
}
return s.db.Transaction(func(tx *gorm.DB) error {
var user model.User
if err := tx.First(&user, id).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return errors.New("用户不存在")
}
return err
}
if user.Role != model.RoleAdmin {
return errors.New("只能删除平台管理员账号")
}
if user.Role == model.RoleAdmin && user.Status == 1 {
var admins int64
if err := tx.Model(&model.User{}).Where("role = ? AND status = ?", model.RoleAdmin, 1).Count(&admins).Error; err != nil {
return err
}
if admins <= 1 {
return errors.New("至少保留一个启用的平台管理员")
}
}
return tx.Delete(&user).Error
})
}