package services

import (
	"errors"
	"hongze/hongze_api/models"
	"hongze/hongze_api/utils"
	"strconv"
	"time"
)

var ERR_NO_USER_RECORD = errors.New("用户关系没有入库")
var ERR_USER_NOT_BIND = errors.New("用户没有绑定")

//通过openid获取用户信息
func GetWxUserItemByOpenId(openid string)  (item *models.WxUserItem,err error){
	//通过openid获取用户关联信息
	userRecord,userRecordErr := models.GetUserRecordByOpenId(openid)
	if userRecordErr != nil{
		if userRecordErr.Error() == utils.ErrNoRow(){
			err = ERR_NO_USER_RECORD
			return
		}else{
			err = userRecordErr
			return
		}
	}

	//该openid在系统中没有关联关系
	if userRecord == nil {
		err = ERR_NO_USER_RECORD
		return
	}

	//该openid没有绑定用户
	if userRecord.UserId <= 0{
		err = ERR_USER_NOT_BIND
		item = new(models.WxUserItem)
		//格式化返回用户数据
		formatWxUserAndUserRecord(item,userRecord)
		return
	}

	//获取用户信息
	item,wxUserErr := models.GetWxUserItemByUserId(userRecord.UserId)
	if wxUserErr != nil{
		err = wxUserErr
		return
	}
	//格式化返回用户数据
	formatWxUserAndUserRecord(item,userRecord)
	return
}

//根据用户id和平台id获取用户信息
func GetWxUserItemByUserId(userId,platform int)  (wxUserItem *models.WxUserItem,err error){
	//获取用户信息
	wxUserItem,wxUserErr := models.GetWxUserItemByUserId(userId)
	if wxUserErr != nil{
		err = wxUserErr
		return
	}
	//格式化返回用户数据
	formatWxUser(wxUserItem,platform)
	return
}

//根据用户邮箱和平台id获取用户信息
func GetWxUserItemByEmail(email string,platform int) (wxUserItem *models.WxUserItem,err error) {
	//获取用户信息
	wxUserItem,wxUserErr := models.GetWxUserItemByEmail(email)
	if wxUserErr != nil{
		err = wxUserErr
		return
	}

	//格式化返回用户数据
	formatWxUser(wxUserItem,platform)
	return
}

//根据用户手机号和平台id获取用户信息
func GetWxUserItemByMobile(mobile string,platform int) (wxUserItem *models.WxUserItem,err error) {
	//获取用户信息
	wxUserItem,wxUserErr := models.GetWxUserItemByMobile(mobile)
	if wxUserErr != nil{
		err = wxUserErr
		return
	}
	//格式化返回用户数据
	formatWxUser(wxUserItem,platform)
	return
}

//根据用户unionid和平台id获取用户信息
func GetWxUserItemByUnionId(unionId string,platform int) (wxUserItem *models.WxUserItem,err error) {
	//获取用户信息
	wxUserItem,wxUserErr := models.GetWxUserItemByUnionid(unionId)
	if wxUserErr != nil{
		err = wxUserErr
		return
	}
	//格式化返回用户数据
	formatWxUser(wxUserItem,platform)
	return
}

//通过用户 关系表记录  和  用户记录  格式化返回 用户数据
func formatWxUserAndUserRecord(wxUser *models.WxUserItem,userRecord *models.UserRecord)  {
	wxUser.OpenId = userRecord.OpenId
	wxUser.UnionId = userRecord.UnionId
	wxUser.NickName = userRecord.NickName
	//wxUser.RealName = userRecord.RealName
	//wxUser.BindAccount = userRecord.BindAccount
	wxUser.Headimgurl = userRecord.Headimgurl
}

//通过用户 用户记录  和  来源平台  格式化返回 用户数据
func formatWxUser(wxUser *models.WxUserItem,platform int)  {
	//根据用户id和平台id获取用户关系
	userRecord,userRecordErr := models.GetUserRecordByUserId(wxUser.UserId,platform)
	if userRecordErr != nil{
		if userRecordErr.Error() != utils.ErrNoRow(){
			return
		}
		if userRecordErr.Error() == utils.ErrNoRow(){
			return
		}
	}

	//该openid在系统中没有关联关系
	if userRecord == nil {
		return
	}

	wxUser.OpenId = userRecord.OpenId
	wxUser.UnionId = userRecord.UnionId
	wxUser.NickName = userRecord.NickName
	//wxUser.RealName = userRecord.RealName
	//wxUser.BindAccount = userRecord.BindAccount
	wxUser.Headimgurl = userRecord.Headimgurl
	return
}

//用户绑定
func BindWxUser(openid,mobile,email string) (wxUser *models.WxUserItem,err error)  {
	if mobile == "" && email == ""{
		err = errors.New("手机号或邮箱必填一个")
		return
	}
	var bindAccount string
	//根据手机号获取用户信息
	if mobile != ""{
		tmpWxUser,wxUserErr := models.GetWxUserItemByMobile(mobile)
		if wxUserErr != nil && wxUserErr.Error() != utils.ErrNoRow(){
			err = wxUserErr
			return
		}
		wxUser = tmpWxUser
		bindAccount = mobile
	}
	//根据邮箱获取用户信息
	if wxUser == nil && email != ""{
		tmpWxUser,wxUserErr := models.GetWxUserItemByEmail(email)
		if wxUserErr != nil && wxUserErr.Error() != utils.ErrNoRow(){
			err = wxUserErr
			return
		}
		wxUser = tmpWxUser
		bindAccount = email
	}

	//查询openid的第三方（微信）信息
	userRecord,err := models.GetUserRecordByOpenId(openid)
	if err != nil{
		return
	}


	var userId int
	//如果查询出来的用户是nil，那么需要新增用户
	if wxUser == nil{
		user := &models.WxUser{
			CompanyId:1,
			CreatedTime:time.Now(),
			FirstLogin:1,
			Enabled:1,
			RegisterPlatform:1,
			RegisterTime:time.Now(),
			Mobile: mobile,
			Email: email,
		}
		tmpUserId, addUserErr := models.AddWxUser(user)
		if err != nil{
			err = addUserErr
			return
		}
		user.UserId = int(tmpUserId)
		userId = int(tmpUserId)
		wxUser,err  = models.GetWxUserItemByUserId(userId)
	}else{
		userId = wxUser.UserId
	}
	//如果存在该手机号/邮箱，那么需要校验
	if userRecord.UserId > 0 && userRecord.UserId != userId{
		err = errors.New("用户已绑定，不允许重复绑定")
		return
	}

	err = models.BindUserRecordByOpenid(userId,openid,bindAccount)
	if err != nil{
		return
	}
	userRecord.UserId = userId
	//如果当前该第三方用户信息的昵称为空串的话，那么需要去查询该用户的第一个绑定信息的数据作为来源做数据修复
	if userRecord.NickName == ""{
		oldUserRecord, err := models.GetUserThirdRecordByUserId(userId)
		if err == nil && oldUserRecord != nil{
			//如果该用户绑定的第一条数据的头像信息不为空串，那么就去做新数据的修复
			if oldUserRecord.NickName != ""{
				_ = models.ModifyUserRecordInfo(userRecord.OpenId,oldUserRecord.NickName, oldUserRecord.Headimgurl, oldUserRecord.City, oldUserRecord.Province, oldUserRecord.Country, oldUserRecord.Sex, userId)
			}
		}
	}
	//格式化用户数据
	formatWxUserAndUserRecord(wxUser,userRecord)
	return
}

//微信登录
func WxLogin(code string,wxAccessToken *WxAccessToken,wxUserInfo *WxUserInfo)(token string,userId,firstLogin,permission int,err error){
	openId := wxAccessToken.Openid
	unionId := wxAccessToken.Unionid
	if unionId == ""{
		unionId = wxUserInfo.Unionid
	}

	//firstLogin==1，强制绑定手机号或者邮箱
	firstLogin = 1

QUERY_WX_USER:
	wxUser, wxUserErr := GetWxUserItemByOpenId(openId)
	if wxUserErr == ERR_NO_USER_RECORD{	//没有用户openid记录
		_,recordErr := AddUserRecord(openId,unionId,wxUserInfo.Nickname,"",wxUserInfo.Province,wxUserInfo.City,wxUserInfo.Country,wxUserInfo.Headimgurl,"",utils.WxPlatform,wxUserInfo.Sex,0)
		//如果插入失败，那么直接将错误信息返回
		if recordErr != nil{
			err = recordErr
			return
		}
		//插入成功后，需要重新查询该用户，并进入下面的逻辑
		goto QUERY_WX_USER
	}else if wxUserErr == ERR_USER_NOT_BIND{
		//没有用户信息
		//wxUser.FirstLogin = 1
	}else if wxUserErr != nil{
		err = wxUserErr
		return
	}

	//如果已经登录注册绑定的情况下
	if wxUser != nil && wxUserErr == nil{
		//获取用户权限
		firstLogin = wxUser.FirstLogin
		userId = wxUser.UserId

		permission, permissionErr := CheckUserPermission(userId)
		if permissionErr != nil {
			//记录日志
			utils.FileLog.Info("userId:%s,err:%s", strconv.Itoa(userId), err)
		}

		if wxUserInfo != nil {
			go models.ModifyUserRecordInfo(openId,wxUserInfo.Nickname, wxUserInfo.Headimgurl, wxUserInfo.City, wxUserInfo.Province, wxUserInfo.Country, wxUserInfo.Sex, userId)
		}

		{
			codeLog := new(models.WxUserCode)
			codeLog.WxCode = code
			codeLog.UserId = userId
			codeLog.Code = 0
			codeLog.FirstLogin = firstLogin
			codeLog.Authorization = token
			codeLog.UserPermission = permission
			codeLog.CreateTime=time.Now()
			models.AddWxUserCode(codeLog)
		}
		if wxUser.Mobile == "" && wxUser.Email == "" {
			firstLogin = 1
		}
	}


	//获取登录token
	tokenItem, tokenErr := models.GetTokenByOpenId(openId)
	if tokenErr != nil && tokenErr.Error() != utils.ErrNoRow() {
		err  = errors.New("登录失败，获取token失败:" + tokenErr.Error())
		return
	}

	if tokenItem == nil || (tokenErr != nil && tokenErr.Error() == utils.ErrNoRow()) {
		timeUnix := time.Now().Unix()
		timeUnixStr := strconv.FormatInt(timeUnix, 10)
		token = utils.MD5(openId) + utils.MD5(timeUnixStr)
		//新增session
		{
			session := new(models.Session)
			session.OpenId = openId
			session.UserId = userId
			session.CreatedTime = time.Now()
			session.LastUpdatedTime = time.Now()
			session.ExpireTime = time.Now().AddDate(0, 3, 0)
			session.AccessToken = token
			sessionErr := models.AddSession(session)
			if err != nil {
				err  = errors.New("登录失败，新增用户session信息失败:" + sessionErr.Error())
				return
			}
		}
	} else {
		token = tokenItem.AccessToken
	}

	//新增登录日志
	{
		loginLog := new(models.WxUserLog)
		loginLog.UserId = userId
		loginLog.OpenId = openId
		loginLog.UnionId = unionId
		loginLog.CreateTime = time.Now()
		loginLog.Handle = "wechat_login"
		loginLog.Remark = token
		go models.AddWxUserLog(loginLog)
	}
	return
}


//添加第三方用户（微信）记录
func AddUserRecord(openId,unionId,nickName,realName,province,city,country,headimgurl,sessionKey string,platform,sex,subscribe int) (userRecord *models.UserRecord,err error) {
	find,err := models.GetUserRecordByOpenId(openId)
	if err != nil && err.Error() != utils.ErrNoRow(){
		return
	}
	if find != nil{
		userRecord = find
		return
	}
	userRecord = &models.UserRecord{
		OpenId :openId,	//用户open_id
		UnionId :unionId,//用户union_id
		Subscribe :subscribe,
		NickName :nickName,	//用户昵称，最大长度：32
		RealName :realName,	//用户实际名称，最大长度：32
		Sex :sex,	//普通用户性别，1为男性，2为女性
		Province :province,//普通用户个人资料填写的省份,最大长度：30
		City :city,	//普通用户个人资料填写的城市,最大长度：30
		Country :country,	//国家，如中国为CN,最大长度：30
		Headimgurl :headimgurl,	//用户第三方（微信）头像,最大长度：512
		CreateTime :time.Now(),	//创建时间，关系添加时间、用户授权时间
		CreatePlatform :platform,	//注册平台,1:日度点评公众号,2:管理后台，3：pc端网站,4:查研观向小程序；默认：1
		SessionKey :sessionKey,	//微信小程序会话密钥，最大长度：255
	}
	recordId, err := models.AddUserRecord(userRecord)
	if err !=nil{
		return
	}
	userRecord.UserRecordId = int(recordId)
	return
}