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

package emailverify

import (
	"errors"
	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
	"github.com/TeaOSLab/EdgeUser/internal/configloaders"
	"github.com/TeaOSLab/EdgeUser/internal/web/actions/actionutils"
	"github.com/iwind/TeaGo/actions"
	"github.com/iwind/TeaGo/maps"
	timeutil "github.com/iwind/TeaGo/utils/time"
	"net/mail"
)

type IndexAction struct {
	actionutils.ParentAction
}

func (this *IndexAction) Init() {
	this.Nav("", "", "")
}

func (this *IndexAction) RunGet(params struct{}) {
	// 是否可以激活Email
	registerConfig, _ := configloaders.LoadRegisterConfig()
	this.Data["canVerify"] = false
	if registerConfig == nil {
		this.Show()
		return
	}
	var canVerify = registerConfig.EmailVerification.IsOn
	if !canVerify {
		this.Show()
		return
	}

	this.Data["canVerify"] = true

	// 当前已激活邮箱
	userResp, err := this.RPC().UserRPC().FindEnabledUser(this.UserContext(), &pb.FindEnabledUserRequest{
		UserId: this.UserId(),
	})
	if err != nil {
		this.ErrorPage(err)
		return
	}
	if userResp.User == nil {
		this.ErrorPage(errors.New("can not find user info"))
		return
	}
	this.Data["verifiedEmail"] = userResp.User.VerifiedEmail

	// 现在正等待激活的邮箱
	latestVerificationResp, err := this.RPC().UserEmailVerificationRPC().FindLatestUserEmailVerification(this.UserContext(), &pb.FindLatestUserEmailVerificationRequest{})
	if err != nil {
		this.ErrorPage(err)
		return
	}
	var latestVerification = latestVerificationResp.UserEmailVerification
	if latestVerification == nil {
		this.Data["latestVerification"] = nil
	} else {
		this.Data["latestVerification"] = maps.Map{
			"email":       latestVerification.Email,
			"expiresTime": timeutil.FormatTime("Y-m-d H:i:s", latestVerification.ExpiresAt),
			"isSent":      latestVerification.IsSent,
		}
	}

	this.Show()
}

func (this *IndexAction) RunPost(params struct {
	Email string

	Must *actions.Must
	CSRF *actionutils.CSRF
}) {
	if len(params.Email) == 0 {
		this.FailField("email", "请输入要激活的邮箱")
		return
	}

	_, err := mail.ParseAddress(params.Email)
	if err != nil {
		this.FailField("email", "邮箱格式不正确")
		return
	}

	// 检查邮件是否已被使用
	checkResp, err := this.RPC().UserRPC().CheckUserEmail(this.UserContext(), &pb.CheckUserEmailRequest{Email: params.Email})
	if err != nil {
		this.ErrorPage(err)
		return
	}
	if checkResp.Exists {
		this.FailField("email", "当前邮箱已被别的用户使用，请换一个")
		return
	}

	// 如果同自己已认证邮箱一致，则不重复发送
	userResp, err := this.RPC().UserRPC().FindEnabledUser(this.UserContext(), &pb.FindEnabledUserRequest{UserId: this.UserId()})
	if err != nil {
		this.ErrorPage(err)
		return
	}
	if userResp.User == nil {
		this.Fail("can not find current user")
		return
	}
	if userResp.User.VerifiedEmail == params.Email {
		this.FailField("email", "此邮箱已激活，无需再次激活")
		return
	}

	// 发送激活邮件
	_, err = this.RPC().UserEmailVerificationRPC().SendUserEmailVerification(this.UserContext(), &pb.SendUserEmailVerificationRequest{Email: params.Email})
	if err != nil {
		this.ErrorPage(err)
		return
	}

	this.Success()
}