// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
//go:build plus

package tasks

import (
	"fmt"
	teaconst "github.com/TeaOSLab/EdgeAPI/internal/const"
	"github.com/TeaOSLab/EdgeAPI/internal/db/models"
	"github.com/TeaOSLab/EdgeAPI/internal/goman"
	"github.com/TeaOSLab/EdgeAPI/internal/remotelogs"
	"github.com/TeaOSLab/EdgeAPI/internal/senders/mediasenders"
	"github.com/iwind/TeaGo/dbs"
	"github.com/iwind/TeaGo/types"
	"strings"
	"time"
)

func init() {
	dbs.OnReadyDone(func() {
		goman.New(func() {
			NewUserVerifyCodeTask(30 * time.Second).Start()
		})
	})
}

// UserVerifyCodeTask 验证码相关任务
type UserVerifyCodeTask struct {
	BaseTask

	duration time.Duration
}

func NewUserVerifyCodeTask(duration time.Duration) *UserVerifyCodeTask {
	return &UserVerifyCodeTask{
		duration: duration,
	}
}

func (this *UserVerifyCodeTask) Start() {
	var ticker = time.NewTicker(this.duration)
	for range ticker.C {
		err := this.Loop()
		if err != nil {
			remotelogs.Error("UserVerifyCodeTask", err.Error())
		}
	}
}

func (this *UserVerifyCodeTask) Loop() error {
	if !this.IsPrimaryNode() {
		return nil
	}

	// 删除过期
	var tx *dbs.Tx
	err := models.SharedUserVerifyCodeDAO.DeleteExpiredCodes(tx)
	if err != nil {
		return err
	}

	// 注册信息
	registerConfig, _ := models.SharedSysSettingDAO.ReadUserRegisterConfig(tx)
	if registerConfig == nil {
		return nil
	}

	// 邮件设置
	senderConfig, err := models.SharedSysSettingDAO.ReadUserSenderConfig(tx)
	if err != nil {
		return err
	}
	var verifyEmail = senderConfig.VerifyEmail

	// 准备邮件、短信中的参数
	productName, err := models.SharedSysSettingDAO.ReadProductName(tx)
	if err != nil {
		return err
	}
	if len(productName) == 0 {
		productName = teaconst.ProductNameZH
	}

	userNodeAddr, err := models.SharedUserNodeDAO.FindUserNodeAccessAddr(tx)
	if err != nil {
		return err
	}

	// 待发送
	verifyCodes, err := models.SharedUserVerifyCodeDAO.ListSendingCodes(tx, 10)
	if err != nil {
		return err
	}

	var mailInfos = []*mediasenders.MailInfo{}
	var verifyIds = []int64{}

	for _, verifyCode := range verifyCodes {
		// 已过期
		if int64(verifyCode.ExpiresAt) < time.Now().Unix() {
			continue
		}

		switch verifyCode.Type {
		case models.UserVerifyCodeTypeResetPassword:
			// 通过邮件
			if len(verifyCode.Email) > 0 && verifyEmail != nil && verifyEmail.IsOn {
				if registerConfig.EmailResetPassword.IsOn {
					var subject = registerConfig.EmailResetPassword.Subject
					subject = strings.ReplaceAll(subject, "${product.name}", productName)

					var body = registerConfig.EmailResetPassword.Body
					body = strings.ReplaceAll(body, "${product.name}", productName)
					body = strings.ReplaceAll(body, "${url.home}", userNodeAddr)
					body = strings.ReplaceAll(body, "${code}", verifyCode.Code)

					mailInfos = append(mailInfos, &mediasenders.MailInfo{
						To:      verifyCode.Email,
						Subject: subject,
						Body:    body,
					})

					verifyIds = append(verifyIds, int64(verifyCode.Id))
				}
			}

			// 通过手机号
			if len(verifyCode.Mobile) > 0 {
				// TODO 需要实现

				verifyIds = append(verifyIds, int64(verifyCode.Id))
			}
		}
	}

	// 发送邮件
	if len(mailInfos) > 0 && verifyEmail != nil {
		var mailSender = mediasenders.NewEmailMedia()
		mailSender.Protocol = verifyEmail.Protocol
		mailSender.SMTP = verifyEmail.SMTPHost + ":" + types.String(verifyEmail.SMTPPort)
		mailSender.Username = verifyEmail.Username
		mailSender.Password = verifyEmail.Password
		mailSender.From = verifyEmail.FromEmail
		mailSender.FromName = verifyEmail.FromName
		err = mailSender.SendMails(mailInfos, productName)
		if err != nil {
			return fmt.Errorf("send mail failed: %w", err)
		}
	}

	// 设置为已发送
	for _, verifyId := range verifyIds {
		err = models.SharedUserVerifyCodeDAO.UpdateCodeIsSent(tx, verifyId)
		if err != nil {
			return err
		}
	}

	return nil
}