package service

import (
	"crypto/tls"
	"github.com/gogf/gf/v2/encoding/gjson"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/gctx"
	"github.com/jordan-wright/email"
	"log"
	"net/smtp"
	"strings"
)

type IEmail interface {
	SendEmail(emailAddr, code string) (err error)
}

type emailServiceTmpl struct {
}

var emailService = emailServiceTmpl{}

func Email() IEmail {
	return &emailService
}

type EmailTmpl struct {
	From      string
	EmailAddr string
	Password  string
	Smtp      string
	Port      string
	Subject   string
	HTML      string
}

var (
	emailConfig EmailTmpl
)

func init() {
	//加载游戏相关配置
	ctx := gctx.New()

	emailConfig.From = g.Cfg().MustGet(ctx, "game.email.from").String()
	emailConfig.EmailAddr = g.Cfg().MustGet(ctx, "game.email.emailAddr").String()
	emailConfig.Smtp = g.Cfg().MustGet(ctx, "game.email.smtp").String()
	emailConfig.Password = g.Cfg().MustGet(ctx, "game.email.password").String()
	emailConfig.Port = g.Cfg().MustGet(ctx, "game.email.port").String()
	emailConfig.Subject = g.Cfg().MustGet(ctx, "game.email.subject").String()
	emailConfig.HTML = g.Cfg().MustGet(ctx, "game.email.html").String()

}

/*
*	Description:
*
* 使用凭据初始化账号Client
* @return Client
* @throws Exception
 */
func (a *emailServiceTmpl) SendEmail(emailAddr, code string) (err error) {
	e := email.NewEmail()

	e.From = emailConfig.From
	e.To = []string{emailAddr}
	e.Bcc = []string{emailConfig.EmailAddr}
	e.Subject = emailConfig.Subject
	e.HTML = []byte(strings.Replace(emailConfig.HTML, "CODE", code, -1))
	log.Println("SendEmail: ", gjson.MustEncodeString(emailConfig))
	auth := smtp.PlainAuth("", emailConfig.EmailAddr, emailConfig.Password, emailConfig.Smtp)
	if emailConfig.Port == "25" {
		err = e.Send(emailConfig.Smtp+":"+emailConfig.Port, auth)
		if err != nil {
			log.Println("SendEmail: Send：", err)
		}
	} else {
		tc := &tls.Config{
			ServerName:         emailConfig.Smtp,
			InsecureSkipVerify: true,
		}
		err = e.SendWithTLS(emailConfig.Smtp+":"+emailConfig.Port, auth, tc)
		if err != nil {
			log.Println("SendEmail: SendWithTLS: ", err)
		}
	}
	return
}