package msg

import (
	"errors"
	openapi "github.com/alibabacloud-go/darabonba-openapi/v2/client"
	dysmsapi20180501 "github.com/alibabacloud-go/dysmsapi-20180501/v2/client"
	util "github.com/alibabacloud-go/tea-utils/v2/service"
	"github.com/alibabacloud-go/tea/tea"
	"github.com/patrickmn/go-cache"
	uuid "github.com/satori/go.uuid"
	"sync"
	"time"
	"wss-pool/config"
	"wss-pool/internal"
	"wss-pool/internal/data/mysqlbusiness"
	"wss-pool/internal/redis"
	"wss-pool/logging/applogger"
	"wss-pool/pkg/model/sqlmodel"
)

type aLiYun struct {
	verificationCodeReqCache *cache.Cache // You can only send the verification code once within a minute
}

var (
	aLiYunOnce   sync.Once
	aLiYunEntity *aLiYun
)

// getALiYunEntity
func getALiYunEntity() *aLiYun {
	aLiYunOnce.Do(func() {
		aLiYunEntity = new(aLiYun)
		aLiYunEntity.verificationCodeReqCache = cache.New(time.Minute, time.Minute)
	})

	return aLiYunEntity
}

// SendVerificationCode
func (al *aLiYun) SendVerificationCode(phoneNumber string) (code string, err error) {
	// Verify if the verification code can be obtained (1-minute validity period)
	_, found := al.verificationCodeReqCache.Get(phoneNumber)
	if found {
		err = errors.New("请勿重复发送验证码")
		return
	}

	// Generate verification code
	verifyCode := CreateRandCode()
	// Generate Message Body
	message := al.getVerifyCodeReq(phoneNumber, verifyCode)

	// Write to database
	applogger.Debug("send message info：%v", message)
	if err = mysqlbusiness.SaveBoUserSms(sqlmodel.BoUserSms{
		From:    tea.StringValue(message.From),
		To:      tea.StringValue(message.To),
		Message: tea.StringValue(message.Message),
		TaskId:  tea.StringValue(message.TaskId),
	}); err != nil {
		err = errors.New("add data db error")
		return internal.ResultStr, err
	}

	// Sends sms
	//result, _err := al.SendSms(message)
	//if _err != nil {
	//	_err = errors.New("请输入正确的手机号")
	//	return internal.ResultStr, _err
	//}
	result := "发送短信之后的返回值"

	applogger.Debug("Send the returned results：%v", tea.StringValue(util.ToJSONString(util.ToMap(result))))
	// Update to database
	if err = mysqlbusiness.UpdateBoUserSms(sqlmodel.BoUserSms{
		From:          tea.StringValue(message.From),
		To:            tea.StringValue(message.To),
		Message:       tea.StringValue(message.Message),
		TaskId:        tea.StringValue(message.TaskId),
		MessageResult: tea.StringValue(util.ToJSONString(util.ToMap(result))),
		UpdateTime:    time.Now(),
	}); err != nil {
		err = errors.New("update data db error")
		return internal.ResultStr, err
	}

	// Request valid within 1 minute
	al.verificationCodeReqCache.SetDefault(phoneNumber, 1)

	// Set SMS verification code cache to be valid within 5 minutes
	err = redis.Set_Cache_Data(phoneNumber, verifyCode, 5)
	if err != nil {
		err = errors.New("cache key error")
		return internal.ResultStr, err
	}

	return verifyCode, nil
}

// CheckVerificationCode
func (al *aLiYun) CheckVerificationCode(phoneNumber, verificationCode string) (err error) {
	code, err := redis.Get_Cache_Data(phoneNumber)
	if err != nil {
		if err.Error() == "redis: nil" {
			// init cache data
			if err = redis.Set_Cache_Data(phoneNumber, verificationCode, 5); err != nil {
				return errors.New("内部服务出错")
			}
			code = verificationCode
		}
	}

	if len(code) == 0 {
		err = errors.New("验证码已失效")
		return
	}

	if verificationCode != code {
		err = errors.New("验证码输入错误")
		return
	}

	return err
}

// CheckVerificationCodeNew
func (al *aLiYun) CheckVerificationCodeNew(phoneNumber string) (string, error) {
	code, err := redis.Get_Cache_Data(phoneNumber)
	if err != nil {
		if err.Error() == "redis: nil" {
			code = ""
		} else {
			err = errors.New("内部服务错误")
			return "", err
		}
	}

	return code, nil
}

// getVerifyCodeReq
func (al *aLiYun) getVerifyCodeReq(phoneNumber, code string) (req dysmsapi20180501.SendMessageToGlobeRequest) {
	verifyCodeFrom := CreateRandCodeTest()

	req = dysmsapi20180501.SendMessageToGlobeRequest{
		From:    tea.String(verifyCodeFrom),        // 发送方标识;支持SenderId的发送,只允许数字+字母,含有字母标识最长11位,纯数字标识支持15位
		To:      tea.String(phoneNumber),           // 接收短信号码;号码格式为:国际区号+号码
		Message: tea.String(code),                  // TODO: 修改短信内容
		TaskId:  tea.String(uuid.NewV4().String()), // 任务ID;长度不要超过255
	}

	return
}

// CreateClient Initialize the Client with the AccessKey of the account
func (al *aLiYun) CreateClient(accessKeyId *string, accessKeySecret *string) (_result *dysmsapi20180501.Client, _err error) {
	configs := &openapi.Config{
		// Required, your AccessKey ID
		AccessKeyId: accessKeyId,
		// Required, your AccessKey secret
		AccessKeySecret: accessKeySecret,
	}
	// Endpoint
	configs.Endpoint = tea.String(config.Config.ALiYun.EndPoint)
	_result = &dysmsapi20180501.Client{}
	_result, _err = dysmsapi20180501.NewClient(configs)
	return _result, _err
}

// SendSms
func (al *aLiYun) SendSms(req dysmsapi20180501.SendMessageToGlobeRequest) (res *dysmsapi20180501.SendMessageToGlobeResponse, _err error) {
	client, _err := al.CreateClient(tea.String(config.Config.ALiYun.AccessKeyId), tea.String(config.Config.ALiYun.AccessKeySecret))
	if _err != nil {
		return nil, _err
	}

	defer func() {
		if r := tea.Recover(recover()); r != nil {
			_err = r
		}
	}()

	runtime := &util.RuntimeOptions{}

	// Copy the code to run, please print the return value of the API by yourself.
	result, _err := client.SendMessageToGlobeWithOptions(&req, runtime)
	if _err != nil {
		return nil, _err
	}

	if *result.Body.ResponseCode != "OK" {
		_err = errors.New(result.String())
	}

	return result, _err
}

func RunSendSms(phoneNumber string) (string, error) {
	sms := NewSms()
	code, err := sms.CheckVerificationCodeNew(phoneNumber)
	if err != nil {
		return err.Error(), err
	}

	if len(code) > 0 {
		return code, err
	}

	// Request verification code
	codeMsg, err := sms.SendVerificationCode(phoneNumber)
	if err != nil {
		return internal.ResultStr, err
	}

	return codeMsg, nil
}