package login

import (
	"epur-pay/cache"
	"epur-pay/model"
	"epur-pay/pkg/dapi"
	"epur-pay/pkg/logger"
	"epur-pay/pkg/redis"
	"epur-pay/pkg/utils"
	"fmt"
	redigo "github.com/gomodule/redigo/redis"
	"golang.org/x/crypto/bcrypt"
	"regexp"
)

type SsoRegisterParams struct {
	Password string `json:"password"` // 密码
	Mobile   string `json:"mobile"`   // 手机号
	Email    string `json:"email"`    // 邮箱（可选）
	Invite   string `json:"invite"`   // 邀请码（可选）
	Captcha  string `json:"captcha"`  // 验证码
}

type SsoRegisterResponse struct {
	*dapi.ResponseCommon
	Data struct {
		Token string `json:"token"`
	} `json:"data"`
}

// SsoRegister 用户注册接口
// @Summary 用户注册
// @Description 该接口用于用户通过手机号、密码、验证码等信息进行注册。如果注册成功，返回用户的Token。
// @Tags register
// @Accept json
// @Produce json
// @Param body body SsoRegisterParams true "用户注册信息"
// @Success 200 {object} SsoRegisterResponse "注册成功返回Token"
// @Router /api/v1/login/register [post]
func SsoRegister(a *dapi.ApiBase, data *SsoRegisterParams) error {
	if len(data.Mobile) == 0 {
		return a.ReturnPublicErrorResponse(a.Translate("mobile_required"))
	}
	if len(data.Captcha) == 0 {
		return a.ReturnPublicErrorResponse(a.Translate("captcha_required"))
	}

	mobileRegex := `^1[3-9]\d{9}$`
	matched, err := regexp.MatchString(mobileRegex, data.Mobile)
	if err != nil || !matched {
		return a.ReturnPublicErrorResponse(a.Translate("invalid_mobile"))
	}

	if len(data.Password) < 6 || len(data.Password) > 72 {
		return a.ReturnPublicErrorResponse(a.Translate("password_length_invalid"))
	}
	hasLetter := false
	hasNumber := false
	for _, char := range data.Password {
		if char >= 'a' && char <= 'z' || char >= 'A' && char <= 'Z' {
			hasLetter = true
		}
		if char >= '0' && char <= '9' {
			hasNumber = true
		}
	}
	if !hasLetter || !hasNumber {
		return a.ReturnPublicErrorResponse(a.Translate("password_complexity_invalid"))
	}

	if len(data.Email) > 0 {
		emailRegex := `^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`
		matched, err := regexp.MatchString(emailRegex, data.Email)
		if err != nil || !matched {
			return a.ReturnPublicErrorResponse(a.Translate("invalid_email"))
		}
	}

	redisCodeKey := fmt.Sprintf("smscode:%s", data.Mobile)
	conn := redis.RPool.Get()
	defer func() {
		if err := conn.Close(); err != nil {
			logger.ErrorLogger.Infoln(err.Error())
		}
	}()

	storedCaptcha, err := redigo.String(conn.Do("GET", redisCodeKey))
	if err != nil || storedCaptcha != data.Captcha {
		return a.ReturnPublicErrorResponse(a.Translate("invalid_captcha"))
	}

	//_, _ = conn.Do("DEL", redisCodeKey)

	var count int64
	user := model.User{}
	err = a.Ts.Table(user.TableName()).Where("mobile", data.Mobile).Count(&count).Error
	if err != nil {
		utils.Error(err)
	}
	if count > 0 {
		return a.ReturnPublicErrorResponse(a.Translate("account_exists"))
	}

	hashedPass, err := bcrypt.GenerateFromPassword([]byte(data.Password), bcrypt.DefaultCost)
	if err != nil {
		utils.Error(err)
	}

	currentTime := utils.Time2StampSecond()
	clientIp := a.ClientIp()

	newUser := model.User{
		Mobile: data.Mobile,
		Email:  data.Email,
		Invite: data.Invite,
		Status: "0", // 状态 0-正常 1-拉黑
		Role:   model.ArryString{},
	}

	newUser.Detail = model.UserDetail{
		PassWord:          string(hashedPass),
		CreateTime:        currentTime,
		RegisterIp:        clientIp,
		RegisterIpAddress: cache.GetIpAddress(clientIp),
		Nickname:          data.Mobile, // 默认昵称与手机号一致
	}

	err = a.Ts.Table(newUser.TableName()).Create(&newUser).Error
	if err != nil {
		utils.Error(err)
	}

	token := dapi.EncryptToken(newUser.Uid)
	newUser.Detail.Token = token

	err = a.Ts.Table(newUser.TableName()).Where("uid", newUser.Uid).
		Updates(map[string]interface{}{"detail": newUser.Detail}).Error
	if err != nil {
		utils.Error(err)
	}

	response := SsoRegisterResponse{}
	response.ResponseCommon = a.NewSuccessResponseCommon()
	response.Data.Token = token

	return a.ReturnSuccessCustomResponse(response)
}