package user

import (
	"context"
	"encoding/json"
	"fmt"
	"time"

	"github.com/perfect-panel/server/internal/config"
	"github.com/perfect-panel/server/internal/model/user"
	"github.com/perfect-panel/server/internal/svc"
	"github.com/perfect-panel/server/internal/types"
	"github.com/perfect-panel/server/pkg/constant"
	"github.com/perfect-panel/server/pkg/jwt"
	"github.com/perfect-panel/server/pkg/logger"
	"github.com/perfect-panel/server/pkg/tool"
	"github.com/perfect-panel/server/pkg/uuidx"
	"github.com/perfect-panel/server/pkg/xerr"
	"github.com/pkg/errors"
	"gorm.io/gorm"
)

type BindEmailWithVerificationLogic struct {
	logger.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// NewBindEmailWithVerificationLogic Bind Email With Verification
func NewBindEmailWithVerificationLogic(ctx context.Context, svcCtx *svc.ServiceContext) *BindEmailWithVerificationLogic {
	return &BindEmailWithVerificationLogic{
		Logger: logger.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

// BindEmailWithVerification 处理邮箱绑定流程，并在邮箱已存在时转移设备归属
// 参数说明：
// - req: 绑定邮箱请求，包含邮箱地址等信息
// 返回值：
// - *types.BindEmailWithVerificationResponse: 包含绑定结果、消息、token、用户ID
// - error: 发生错误时返回具体错误
func (l *BindEmailWithVerificationLogic) BindEmailWithVerification(req *types.BindEmailWithVerificationRequest) (*types.BindEmailWithVerificationResponse, error) {
	// 获取当前用户
	u, ok := l.ctx.Value(constant.CtxKeyUser).(*user.User)
	if !ok {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidAccess), "Invalid Access")
	}

	type payload struct {
		Code   string `json:"code"`
		LastAt int64  `json:"lastAt"`
	}
	var (
		scenes   = []string{constant.Security.String(), constant.Register.String()}
		verified = false
	)
	for _, scene := range scenes {
		cacheKey := fmt.Sprintf("%s:%s:%s", config.AuthCodeCacheKey, scene, req.Email)
		value, getErr := l.svcCtx.Redis.Get(l.ctx, cacheKey).Result()
		if getErr != nil || value == "" {
			continue
		}
		var p payload
		if err := json.Unmarshal([]byte(value), &p); err != nil {
			continue
		}
		// 校验验证码及有效期（15分钟）
		if p.Code == req.Code && time.Now().Unix()-p.LastAt <= l.svcCtx.Config.VerifyCode.ExpireTime {
			_ = l.svcCtx.Redis.Del(l.ctx, cacheKey).Err()
			verified = true
			break
		}
	}
	if !verified {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.VerifyCodeError), "code error or expired")
	}

	// 获取当前用户的设备标识符
	deviceIdentifier, err := l.getCurrentUserDeviceIdentifier(l.ctx, u.Id)
	if err != nil {
		l.Errorw("获取用户设备标识符失败", logger.Field("error", err.Error()))
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "获取用户设备信息失败: %v", err)
	}

	// 检测当设备是否已经绑定过邮箱
	existingDevice, err := l.svcCtx.UserModel.FindUserAuthMethods(l.ctx, u.Id)
	if err != nil {
		l.Errorw("查询用户设备信息失败", logger.Field("error", err.Error()), logger.Field("device_identifier", deviceIdentifier))
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "查询用户设备信息失败")
	}
	for _, method := range existingDevice {
		if method.AuthType == "email" {
			return nil, errors.Wrapf(xerr.NewErrCode(xerr.EmailBindError), "该设备已绑定邮箱")
		}
	}

	// 检查邮箱是否已被其他用户绑定
	existingMethod, err := l.svcCtx.UserModel.FindUserAuthMethodByOpenID(l.ctx, "email", req.Email)
	var emailUserId int64
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			// 邮箱不存在，绑定邮箱认证到当前设备用户（不增加设备数量）
			l.Infow(" 为当前设备做 邮箱绑定操作； 在 user_auth_methods 中添加记录", logger.Field("email", req.Email))
			err = l.addAuthMethodForEmailUser(u.Id, req.Email)
			if err != nil {
				l.Errorw("添加邮箱用户认证方法失败", logger.Field("error", err.Error()), logger.Field("user_id", u.Id))
				return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "添加邮箱用户认证方法失败")
			}
			emailUserId = u.Id
		} else {
			l.Errorw("查询邮箱绑定状态失败", logger.Field("error", err.Error()))
			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "查询邮箱绑定状态失败")
		}
	} else if existingMethod.Id != 0 {
		// 邮箱已存在，使用现有的邮箱用户
		emailUserId = existingMethod.UserId
		// 设备绑定数量上限校验（目标邮箱用户）
		if limit := l.svcCtx.SessionLimit(); limit > 0 {
			if _, count, cntErr := l.svcCtx.UserModel.QueryDeviceList(l.ctx, emailUserId); cntErr == nil {
				if count >= limit {
					return nil, xerr.NewErrCodeMsg(xerr.DeviceBindLimitExceeded, "账户绑定设备数已达上限，请移除其他设备后再登录，您也可以再注册一个新账户使用，点击帮助中心查看更多详情。")
				}
			}
		}
		// 获取原设备信息，以保留IP和UserAgent
		// oldDevice, err := l.svcCtx.UserModel.FindOneDeviceByIdentifier(l.ctx, deviceIdentifier)
		// var deviceIP, deviceUA string
		// if err == nil && oldDevice != nil {
		// 	deviceIP = oldDevice.Ip
		// 	deviceUA = oldDevice.UserAgent
		// }

		l.Infow("邮箱已存在，将设备转移到现有邮箱用户",
			logger.Field("email", req.Email),
			logger.Field("email_user_id", emailUserId))
		// 创建前 需要 吧 原本的 user_devices 表中过的数据删除掉 防止出现两个记录
		devices, _, err := l.svcCtx.UserModel.QueryDeviceList(l.ctx, u.Id)
		if err != nil {
			l.Errorw("查询用户设备列表失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "查询用户设备列表失败")
		}
		// 保存原用户ID，用于踢出旧连接
		originalUserId := u.Id
		for _, device := range devices {
			// 删除原本的设备记录
			// err = l.svcCtx.UserModel.DeleteDevice(l.ctx, device.Id)
			// if err != nil {
			// 	l.Errorw("删除邮箱用户设备记录失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
			// 	return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "删除原本的设备记录失败")
			// }
			// 更新 设备 归属
			device.UserId = emailUserId
			err = l.svcCtx.UserModel.UpdateDevice(l.ctx, device)
			if err != nil {
				l.Errorw("更新邮箱用户设备记录失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
				return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "更新原本的设备记录失败")
			}

			// 踢出设备的旧 WebSocket 连接（使用原用户ID）
			l.svcCtx.DeviceManager.KickDevice(originalUserId, device.Identifier)
			l.Infow("已踢出设备旧连接",
				logger.Field("device_identifier", device.Identifier),
				logger.Field("original_user_id", originalUserId),
				logger.Field("new_user_id", emailUserId))

			// 清理设备相关的 Redis 缓存
			deviceCacheKey := fmt.Sprintf("%v:%v", config.DeviceCacheKeyKey, device.Identifier)
			if sessionId, rerr := l.svcCtx.Redis.Get(l.ctx, deviceCacheKey).Result(); rerr == nil && sessionId != "" {
				_ = l.svcCtx.Redis.Del(l.ctx, deviceCacheKey).Err()
				sessionIdCacheKey := fmt.Sprintf("%v:%v", config.SessionIdKey, sessionId)
				_ = l.svcCtx.Redis.Del(l.ctx, sessionIdCacheKey).Err()
				// 清理 user_sessions
				sessionsKey := fmt.Sprintf("%s%v", config.UserSessionsKeyPrefix, originalUserId)
				_ = l.svcCtx.Redis.ZRem(l.ctx, sessionsKey, sessionId).Err()
				l.Infow("已清理设备缓存",
					logger.Field("device_identifier", device.Identifier),
					logger.Field("session_id", sessionId))
			}
		}
		// 再次更新 user_auth_method ： 因为之前 默认 设备登录的时候 创建了一个设备认证数据
		// 现在需要 更新 为 邮箱认证
		err = l.updateAuthMethodForEmailUser(emailUserId, deviceIdentifier)
		if err != nil {
			l.Errorw("更新邮箱用户认证方法失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "更新邮箱用户认证方法失败")
		}
		// 需要删除原本 user 表中的 记录： 根据 设备 ID
		err = l.deleteUserRecordForEmailUser(u.Id)
		if err != nil {
			l.Errorw("删除用户记录失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "删除用户记录失败")
		}

		// err = l.createDeviceRecordForEmailUser(emailUserId, deviceIdentifier, deviceIP, deviceUA)
		// if err != nil {
		// 	l.Errorw("创建邮箱用户设备记录失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
		// 	return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "创建邮箱用户设备记录失败")
		// }
	}
	// 4. 生成新的JWT token
	token, err := l.generateTokenForUser(emailUserId)
	if err != nil {
		l.Errorw("生成JWT token失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "生成JWT token失败")
	}
	return &types.BindEmailWithVerificationResponse{
		Success: true,
		Message: "设备关联成功",
		Token:   token,
		UserId:  emailUserId,
	}, nil
}

// getCurrentUserDeviceIdentifier 获取当前用户的设备标识符
func (l *BindEmailWithVerificationLogic) getCurrentUserDeviceIdentifier(ctx context.Context, userId int64) (string, error) {
	authMethods, err := l.svcCtx.UserModel.FindUserAuthMethods(ctx, userId)
	if err != nil {
		return "", err
	}

	// 查找设备认证方式
	for _, method := range authMethods {
		if method.AuthType == "device" {
			return method.AuthIdentifier, nil
		}
	}

	return "", errors.New("用户没有设备认证方式")
}

// checkIfPureDeviceUser 检查用户是否为纯设备用户（只有设备认证方式）
func (l *BindEmailWithVerificationLogic) checkIfPureDeviceUser(ctx context.Context, userId int64) (bool, string, error) {
	authMethods, err := l.svcCtx.UserModel.FindUserAuthMethods(ctx, userId)
	if err != nil {
		l.Errorw("查询用户认证方式失败", logger.Field("error", err.Error()), logger.Field("user_id", userId))
		return false, "", errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "查询用户认证方式失败")
	}

	// 检查是否只有一个设备认证方式
	if len(authMethods) == 1 && authMethods[0].AuthType == "device" {
		return true, authMethods[0].AuthIdentifier, nil
	}

	return false, "", nil
}

// 邮箱存在的情况：在 user_devices 中创建一条设备记录
func (l *BindEmailWithVerificationLogic) createDeviceRecordForEmailUser(emailUserId int64, deviceIdentifier, ip, userAgent string) error {
	// online 默认 0 enabled 默认 1
	l.Infow("创建邮箱用户设备记录",
		logger.Field("email_user_id", emailUserId),
		logger.Field("device_identifier", deviceIdentifier),
		logger.Field("online", true),
		logger.Field("enabled", false),
		logger.Field("user_agent", userAgent),
		logger.Field("ip", ip),
	)

	err := l.svcCtx.UserModel.InsertDevice(l.ctx, &user.Device{
		UserId:     emailUserId,
		Identifier: deviceIdentifier,
		Online:     false,
		Enabled:    false,
		UserAgent:  userAgent,
		Ip:         ip,
	})
	if err != nil {
		l.Errorw("创建邮箱用户设备记录失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "创建邮箱用户设备记录失败")
	}

	l.Infow("成功创建邮箱用户设备记录",
		logger.Field("email_user_id", emailUserId),
		logger.Field("device_identifier", deviceIdentifier))
	return nil
}

// 邮箱不存在的情况: 在 user_auth_methods 中添加记录 以当前设备ID 做关联， 此时 user_devices 中不需要变动
func (l *BindEmailWithVerificationLogic) addAuthMethodForEmailUser(userId int64, email string) error {
	l.Infow("添加邮箱用户认证方法",
		logger.Field("user_id", userId),
		logger.Field("email", email))

	// 插入邮箱用户认证方法
	err := l.svcCtx.UserModel.InsertUserAuthMethods(l.ctx, &user.AuthMethods{
		UserId:         userId,
		AuthType:       "email",
		AuthIdentifier: email,
	})
	if err != nil {
		l.Errorw("插入邮箱用户认证方法失败", logger.Field("error", err.Error()), logger.Field("user_id", userId))
		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "插入邮箱用户认证方法失败")
	}
	l.Infow("成功添加邮箱用户认证方法",
		logger.Field("user_id", userId),
		logger.Field("email", email))
	return nil
}

// transferDeviceToEmailUser
func (l *BindEmailWithVerificationLogic) transferDeviceToEmailUser(deviceUserId, emailUserId int64, deviceIdentifier string) (*types.BindEmailWithVerificationResponse, error) {
	l.Infow("开始设备转移",
		logger.Field("device_user_id", deviceUserId),
		logger.Field("email_user_id", emailUserId),
		logger.Field("device_identifier", deviceIdentifier))

	// 1. 先获取当前用户的SessionId，用于后续清理  可以不需要

	currentSessionId := ""
	if sessionIdValue := l.ctx.Value(constant.CtxKeySessionID); sessionIdValue != nil {
		currentSessionId = sessionIdValue.(string)
	}

	// 2. 在事务中执行设备转移
	err := l.svcCtx.UserModel.Transaction(l.ctx, func(db *gorm.DB) error {
		// 1. 检查目标邮箱用户状态
		emailUser, err := l.svcCtx.UserModel.FindOne(l.ctx, emailUserId)
		if err != nil {
			l.Errorw("查询邮箱用户失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
			return err
		}

		// 2. 获取原设备用户信息
		deviceUser, err := l.svcCtx.UserModel.FindOne(l.ctx, deviceUserId)
		if err != nil {
			l.Errorw("查询设备用户失败", logger.Field("error", err.Error()), logger.Field("device_user_id", deviceUserId))
			return err
		}

		// 3. 如果邮箱用户没有ReferCode，则从设备用户转移或生成新的
		if emailUser.ReferCode == "" {
			if deviceUser.ReferCode != "" {
				// 转移设备用户的ReferCode
				if err := db.Model(&user.User{}).Where("id = ?", emailUserId).Update("refer_code", deviceUser.ReferCode).Error; err != nil {
					l.Errorw("转移ReferCode失败", logger.Field("error", err.Error()))
					return err
				}
				l.Infow("已转移设备用户的ReferCode到邮箱用户",
					logger.Field("device_user_id", deviceUserId),
					logger.Field("email_user_id", emailUserId),
					logger.Field("refer_code", deviceUser.ReferCode))
			} else {
				// 为邮箱用户生成新的ReferCode
				newReferCode := uuidx.UserInviteCode(emailUserId)
				if err := db.Model(&user.User{}).Where("id = ?", emailUserId).Update("refer_code", newReferCode).Error; err != nil {
					l.Errorw("生成邮箱用户ReferCode失败", logger.Field("error", err.Error()))
					return err
				}
				l.Infow("已为邮箱用户生成新的ReferCode",
					logger.Field("email_user_id", emailUserId),
					logger.Field("refer_code", newReferCode))
			}
		}

		// 4. 如果邮箱用户没有RefererId，但设备用户有，则转移RefererId
		if emailUser.RefererId == 0 && deviceUser.RefererId != 0 {
			if err := db.Model(&user.User{}).Where("id = ?", emailUserId).Update("referer_id", deviceUser.RefererId).Error; err != nil {
				l.Errorw("转移RefererId失败", logger.Field("error", err.Error()))
				return err
			}
			l.Infow("已转移设备用户的RefererId到邮箱用户",
				logger.Field("device_user_id", deviceUserId),
				logger.Field("email_user_id", emailUserId),
				logger.Field("referer_id", deviceUser.RefererId))
		}

		// 5. 检查设备是否已经关联到目标用户
		existingDevice, err := l.svcCtx.UserModel.FindOneDeviceByIdentifier(l.ctx, deviceIdentifier)
		if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
			l.Errorw("查询设备信息失败", logger.Field("error", err.Error()), logger.Field("device_identifier", deviceIdentifier))
			return err
		}

		if existingDevice != nil && existingDevice.UserId == emailUserId {
			// 设备已经关联到目标用户，直接生成token
			l.Infow("设备已关联到目标用户", logger.Field("device_id", existingDevice.Id))
			return nil
		}

		// 6. 处理设备冲突 - 将现有设备记录的归属修改为邮箱用户
		if existingDevice != nil && existingDevice.UserId != emailUserId {
			l.Infow("更新冲突设备记录的归属", logger.Field("existing_device_id", existingDevice.Id), logger.Field("old_user_id", existingDevice.UserId), logger.Field("new_user_id", emailUserId))
			if err := db.Model(&user.Device{}).Where("identifier = ? AND user_id = ?", deviceIdentifier, existingDevice.UserId).Update("user_id", emailUserId).Error; err != nil {
				l.Errorw("更新冲突设备记录归属失败", logger.Field("error", err.Error()))
				return err
			}
		}

		// 7. 更新user_auth_methods表 - 将设备认证方式转移到邮箱用户
		if err := db.Model(&user.AuthMethods{}).
			Where("user_id = ? AND auth_type = ? AND auth_identifier = ?", deviceUserId, "device", deviceIdentifier).
			Update("user_id", emailUserId).Error; err != nil {
			l.Errorw("更新设备认证方式失败", logger.Field("error", err.Error()))
			return err
		}

		// 8. 更新user_device表 - 将设备记录转移到邮箱用户
		if err := db.Model(&user.Device{}).
			Where("user_id = ? AND identifier = ?", deviceUserId, deviceIdentifier).
			Update("user_id", emailUserId).Error; err != nil {
			l.Errorw("更新设备记录失败", logger.Field("error", err.Error()))
			return err
		}

		l.Infow("设备转移成功",
			logger.Field("device_user_id", deviceUserId),
			logger.Field("email_user_id", emailUserId),
			logger.Field("device_identifier", deviceIdentifier))

		return nil
	})

	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "设备转移失败: %v", err)
	}

	// 3. 清理原用户的SessionId缓存（使旧token失效）
	if currentSessionId != "" {
		sessionKey := fmt.Sprintf("%v:%v", config.SessionIdKey, currentSessionId)
		if err := l.svcCtx.Redis.Del(l.ctx, sessionKey).Err(); err != nil {
			l.Errorw("清理原SessionId缓存失败", logger.Field("error", err.Error()), logger.Field("session_id", currentSessionId))
			// 不返回错误，继续执行
		} else {
			l.Infow("已清理原SessionId缓存", logger.Field("session_id", currentSessionId))
		}
	}

	// 4. 生成新的JWT token
	token, err := l.generateTokenForUser(emailUserId)
	if err != nil {
		return nil, err
	}

	// // 5. 强制清除邮箱用户的所有相关缓存（确保获取最新数据）// 清除邮箱用户缓存
	// emailUser, _ := l.svcCtx.UserModel.FindOne(l.ctx, emailUserId)
	// if emailUser != nil {
	// 	// 清除用户的批量相关缓存（包括设备、认证方法等）
	// 	if err := l.svcCtx.UserModel.BatchClearRelatedCache(l.ctx, emailUser); err != nil {
	// 		l.Errorw("清理邮箱用户相关缓存失败", logger.Field("error", err.Error()), logger.Field("user_id", emailUser.Id))
	// 	}
	// }

	// 6. 清除设备相关缓存
	// l.clearDeviceRelatedCache(deviceIdentifier, deviceUserId, emailUserId)

	return &types.BindEmailWithVerificationResponse{
		Success: true,
		Message: "设备关联成功",
		Token:   token,
		UserId:  emailUserId,
	}, nil
}

// generateTokenForUser 为指定用户生成JWT token
func (l *BindEmailWithVerificationLogic) generateTokenForUser(userId int64) (string, error) {
	// 生成JWT token
	accessExpire := l.svcCtx.Config.JwtAuth.AccessExpire
	sessionId := uuidx.NewUUID().String()

	jwtToken, err := jwt.NewJwtToken(
		l.svcCtx.Config.JwtAuth.AccessSecret,
		time.Now().Unix(),
		l.svcCtx.Config.JwtAuth.AccessExpire,
		jwt.WithOption("UserId", userId),
		jwt.WithOption("SessionId", sessionId),
		jwt.WithOption("LoginType", "device"),
	)
	if err != nil {
		l.Errorw("生成JWT token失败", logger.Field("error", err.Error()), logger.Field("user_id", userId))
		return "", errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "生成token失败: %v", err)
	}

	// 设置session缓存
	sessionKey := fmt.Sprintf("%v:%v", config.SessionIdKey, sessionId)
	if err := l.svcCtx.Redis.Set(l.ctx, sessionKey, userId, time.Duration(accessExpire)*time.Second).Err(); err != nil {
		l.Errorw("设置session缓存失败", logger.Field("error", err.Error()), logger.Field("user_id", userId))
		// session缓存失败不影响token生成，只记录错误
	}

	l.Infow("为用户生成token成功", logger.Field("user_id", userId))
	return jwtToken, nil
}

// createEmailUser 创建新的邮箱用户
func (l *BindEmailWithVerificationLogic) createEmailUser(email string) (int64, error) {
	// 检查是否启用了强制邀请码
	if l.svcCtx.Config.Invite.ForcedInvite {
		l.Errorw("邮箱绑定创建新用户时需要邀请码，但当前API不支持邀请码参数",
			logger.Field("email", email),
			logger.Field("forced_invite", true))
		return 0, xerr.NewErrMsg("创建新用户需要邀请码，请使用支持邀请码的注册方式")
	}

	var newUserId int64

	err := l.svcCtx.UserModel.Transaction(l.ctx, func(tx *gorm.DB) error {
		// 1. 创建新用户
		enabled := true
		newUser := &user.User{
			Enable:            &enabled, // 启用状态
			OnlyFirstPurchase: &l.svcCtx.Config.Invite.OnlyFirstPurchase,
		}
		if err := tx.Create(newUser).Error; err != nil {
			l.Errorw("创建用户失败", logger.Field("error", err.Error()))
			return err
		}

		newUserId = newUser.Id
		l.Infow("创建新用户成功", logger.Field("user_id", newUserId))

		// 2. 生成并设置用户的ReferCode
		newUser.ReferCode = uuidx.UserInviteCode(newUserId)
		if err := tx.Model(&user.User{}).Where("id = ?", newUserId).Update("refer_code", newUser.ReferCode).Error; err != nil {
			l.Errorw("更新用户ReferCode失败", logger.Field("error", err.Error()))
			return err
		}
		l.Infow("设置用户ReferCode成功",
			logger.Field("user_id", newUserId),
			logger.Field("refer_code", newUser.ReferCode))

		// 3. 创建邮箱认证方法
		emailAuth := &user.AuthMethods{
			UserId:         newUserId,
			AuthType:       "email",
			AuthIdentifier: email,
			Verified:       true, // 直接设置为已验证
		}
		if err := tx.Create(emailAuth).Error; err != nil {
			l.Errorw("创建邮箱认证方法失败", logger.Field("error", err.Error()))
			return err
		}

		l.Infow("创建邮箱认证方法成功",
			logger.Field("user_id", newUserId),
			logger.Field("email", email))

		// 4. 检查是否需要激活试用订阅
		if l.svcCtx.Config.Register.EnableTrial {
			if err := l.activeTrial(newUserId, tx); err != nil {
				l.Errorw("激活试用订阅失败",
					logger.Field("error", err.Error()),
					logger.Field("user_id", newUserId))
				return err
			}
			l.Infow("激活试用订阅成功", logger.Field("user_id", newUserId))
		}

		return nil
	})

	if err != nil {
		return 0, err
	}

	return newUserId, nil
}

// clearDeviceRelatedCache 清除设备相关缓存
func (l *BindEmailWithVerificationLogic) clearDeviceRelatedCache(deviceIdentifier string, oldUserId, newUserId int64) {
	// 清除设备相关的缓存键
	deviceCacheKeys := []string{
		fmt.Sprintf("cache:device:identifier:%s", deviceIdentifier),
		fmt.Sprintf("cache:user:devices:%d", oldUserId),
		fmt.Sprintf("cache:user:devices:%d", newUserId),
		fmt.Sprintf("cache:user:auth_methods:%d", oldUserId),
		fmt.Sprintf("cache:user:auth_methods:%d", newUserId),
		fmt.Sprintf("cache:user:%d", oldUserId),
		fmt.Sprintf("cache:user:%d", newUserId),
	}

	for _, key := range deviceCacheKeys {
		if err := l.svcCtx.Redis.Del(l.ctx, key).Err(); err != nil {
			l.Errorw("清除设备缓存失败", logger.Field("error", err.Error()), logger.Field("cache_key", key))
		} else {
			l.Infow("已清除设备缓存", logger.Field("cache_key", key))
		}
	}
}

// activeTrial 为新用户激活试用订阅
func (l *BindEmailWithVerificationLogic) activeTrial(userId int64, tx *gorm.DB) error {
	// 获取试用订阅模板
	sub, err := l.svcCtx.SubscribeModel.FindOne(l.ctx, l.svcCtx.Config.Register.TrialSubscribe)
	if err != nil {
		l.Errorw("获取试用订阅模板失败",
			logger.Field("user_id", userId),
			logger.Field("trial_subscribe_id", l.svcCtx.Config.Register.TrialSubscribe),
			logger.Field("error", err.Error()))
		return err
	}

	// 计算试用期时间
	startTime := time.Now()
	expireTime := tool.AddTime(l.svcCtx.Config.Register.TrialTimeUnit, l.svcCtx.Config.Register.TrialTime, startTime)
	subscribeToken := uuidx.SubscribeToken(fmt.Sprintf("Trial-%v", userId))
	subscribeUUID := uuidx.NewUUID().String()

	// 创建用户订阅记录
	userSub := &user.Subscribe{
		UserId:      userId,
		OrderId:     0,
		SubscribeId: sub.Id,
		StartTime:   startTime,
		ExpireTime:  expireTime,
		Traffic:     sub.Traffic,
		Download:    0,
		Upload:      0,
		Token:       subscribeToken,
		UUID:        subscribeUUID,
		Status:      1,
	}

	// 插入订阅记录
	if err := tx.Create(userSub).Error; err != nil {
		l.Errorw("插入试用订阅记录失败",
			logger.Field("user_id", userId),
			logger.Field("error", err.Error()))
		return err
	}

	l.Infow("试用订阅激活成功",
		logger.Field("user_id", userId),
		logger.Field("subscribe_id", sub.Id),
		logger.Field("expire_time", expireTime),
		logger.Field("traffic", sub.Traffic))

	return nil
}

// updateAuthMethodForEmailUser 根据 设备ID 找到原本的记录 然后 调整 user_id
func (l *BindEmailWithVerificationLogic) updateAuthMethodForEmailUser(userId int64, deviceIdentifier string) error {
	var userAuth user.AuthMethods
	if err := l.svcCtx.UserModel.Transaction(l.ctx, func(tx *gorm.DB) error {
		// 查询设备认证方法
		if err := tx.Model(&user.AuthMethods{}).
			Where("auth_identifier = ? AND auth_type = ?", deviceIdentifier, "device").
			First(&userAuth).Error; err != nil {
			l.Errorw("查询设备认证方法失败",
				logger.Field("device_identifier", deviceIdentifier),
				logger.Field("error", err.Error()))
			return err
		}

		// 更新用户认证方法为 email
		if err := tx.Model(&user.AuthMethods{}).
			Where("id = ?", userAuth.Id).
			Update("user_id", userId).Error; err != nil {
			l.Errorw("更新用户设备 用户关联 失败",
				logger.Field("user_id", userId),
				logger.Field("device_identifier", deviceIdentifier),
				logger.Field("error", err.Error()))
			return err
		}

		l.Infow("更新用户设备 用户关联 成功",
			logger.Field("user_id", userId),
			logger.Field("device_identifier", deviceIdentifier))

		return nil
	}); err != nil {
		return err
	}

	return nil
}

// 根据用户iD 删除 user 表中的记录
func (l *BindEmailWithVerificationLogic) deleteUserRecordForEmailUser(userId int64) error {
	if err := l.svcCtx.UserModel.Transaction(l.ctx, func(tx *gorm.DB) error {
		// 删除用户记录
		if err := tx.Delete(&user.User{}, userId).Error; err != nil {
			l.Errorw("删除用户记录失败",
				logger.Field("user_id", userId),
				logger.Field("error", err.Error()))
			return err
		}

		l.Infow("删除用户记录成功", logger.Field("user_id", userId))
		return nil
	}); err != nil {
		return err
	}

	return nil
}