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

package account

import (
	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
	"github.com/TeaOSLab/EdgeUser/internal/configloaders"
	teaconst "github.com/TeaOSLab/EdgeUser/internal/const"
	"github.com/TeaOSLab/EdgeUser/internal/web/actions/actionutils"
	"github.com/iwind/TeaGo/actions"
	"regexp"
	"strings"
)

type ResetAction struct {
	actionutils.ParentAction
}

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

func (this *ResetAction) RunGet(params struct{}) {
	// 界面
	config, err := configloaders.LoadUIConfig()
	if err != nil {
		this.ErrorPage(err)
		return
	}
	this.Data["systemName"] = config.UserSystemName
	this.Data["showVersion"] = config.ShowVersion
	if len(config.Version) > 0 {
		this.Data["version"] = config.Version
	} else {
		this.Data["version"] = teaconst.Version
	}
	this.Data["faviconFileId"] = config.FaviconFileId

	// 密码强度
	registerConfig, err := configloaders.LoadRegisterConfig()
	if err != nil {
		this.Fail("暂未开放注册功能")
	}
	this.Data["complexPassword"] = registerConfig.ComplexPassword

	this.Show()
}

func (this *ResetAction) RunPost(params struct {
	Action          string
	UsernameOrEmail string

	Code     string
	NewPass  string
	NewPass2 string

	Must *actions.Must
	CSRF *actionutils.CSRF
}) {
	// 检查用户名或邮箱是否存在
	if len(params.UsernameOrEmail) == 0 {
		this.FailField("usernameOrEmail", "请输入用户名或已经绑定的邮箱")
		return
	}

	var email string
	if strings.Contains(params.UsernameOrEmail, "@") { // 邮箱
		checkResp, err := this.RPC().UserRPC().CheckUserEmail(this.UserContext(), &pb.CheckUserEmailRequest{Email: params.UsernameOrEmail})
		if err != nil {
			this.ErrorPage(err)
			return
		}
		if !checkResp.Exists {
			this.FailField("usernameOrEmail", "找不到和此邮箱绑定的用户")
			return
		}
		email = params.UsernameOrEmail
	} else { // 用户名
		checkResp, err := this.RPC().UserRPC().CheckUserUsername(this.UserContext(), &pb.CheckUserUsernameRequest{
			UserId:   0,
			Username: params.UsernameOrEmail,
		})
		if err != nil {
			this.ErrorPage(err)
			return
		}
		if !checkResp.Exists {
			this.FailField("usernameOrEmail", "此用户名尚未注册")
			return
		}

		// 检查是否已绑定邮箱
		emailResp, err := this.RPC().UserRPC().FindUserVerifiedEmailWithUsername(this.UserContext(), &pb.FindUserVerifiedEmailWithUsernameRequest{Username: params.UsernameOrEmail})
		if err != nil {
			this.ErrorPage(err)
			return
		}
		if len(emailResp.Email) == 0 {
			this.FailField("usernameOrEmail", "此用户尚未绑定邮箱，不能通过邮箱找回密码")
			return
		}

		email = emailResp.Email
	}

	// 发送验证码
	if params.Action == "send" {
		_, err := this.RPC().UserVerifyCodeRPC().SendUserVerifyCode(this.UserContext(), &pb.SendUserVerifyCodeRequest{
			Type:   "resetPassword",
			Email:  email,
			Mobile: "", // TODO 将来实现通过手机号找回
		})
		if err != nil {
			this.ErrorPage(err)
			return
		}

		this.Data["email"] = email
	}

	// 修改密码
	if params.Action == "update" {
		// 密码
		params.Must.
			Field("newPass", params.NewPass).
			Require("请输入新登录密码").
			MinLength(6, "登录密码长度不能小于6位")

		registerConfig, err := configloaders.LoadRegisterConfig()
		if err == nil {
			if registerConfig.ComplexPassword && (!regexp.MustCompile(`[a-z]`).MatchString(params.NewPass) || !regexp.MustCompile(`[A-Z]`).MatchString(params.NewPass)) {
				this.FailField("newPass", "为了您的账号安全，密码中必须包含大写和小写字母")
				return
			}
		}

		if params.NewPass != params.NewPass2 {
			this.FailField("newPass2", "两次输入的密码不一致")
			return
		}

		// 校验验证码
		validateResp, err := this.RPC().UserVerifyCodeRPC().ValidateUserVerifyCode(this.UserContext(), &pb.ValidateUserVerifyCodeRequest{
			Type:        "resetPassword",
			Email:       email,
			Mobile:      "", // TODO 将来实现
			Code:        params.Code,
			NewPassword: params.NewPass,
		})
		if err != nil {
			this.ErrorPage(err)
			return
		}
		if !validateResp.IsOk {
			this.Fail("验证失败：" + validateResp.ErrorMessage)
			return
		}
	}

	this.Success()
}