package service

import (
	"database/sql"
	"drive-linked/pkg/common"
	"drive-linked/pkg/dto"
	"drive-linked/pkg/model"
	"drive-linked/pkg/serializer"
	"drive-linked/pkg/utils"
	"github.com/kataras/iris/v12"
	"net/http"
	"regexp"
)

type UsersService struct {
	Ctx iris.Context
}

var (
	UserConditions = [...]string{"id", "name", "email", "nickname"}
)

func NewUsersService(ctx iris.Context) *UsersService {
	return &UsersService{Ctx: ctx}
}

func (serv *UsersService) GetOneUser(conditions *map[string]interface{}) {
	var err error
	resp := dto.NewResponse(serv.Ctx)
	user := &model.User{}

	err = user.GetProfileWithConditions(conditions)

	switch err {
	case nil:
		// 复制到dto对象
		var userResult dto.UserProfile
		err = userResult.CopyOf(user)
		if err != nil {
			resp.Error(http.StatusInternalServerError, "service.users Error")
		}
		resp.Success(userResult)
	case sql.ErrNoRows:
		resp.Error(serializer.ErrNoUser, "用户不存在")
	default:
		resp.Error(http.StatusInternalServerError, "获取用户信息失败，数据库异常")
	}
}

func (serv *UsersService) Login(loginParams dto.LoginParams) {
	var err error
	resp := dto.NewResponse(serv.Ctx)

	// 登录逻辑
	// 判断账号类型 邮箱/用户名
	var method string
	emailExp := regexp.MustCompile("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?")
	if emailExp.Match([]byte(loginParams.Account)) {
		method = model.LoginMethodEmail
	} else {
		method = model.LoginMethodName
	}

	// 从数据库取出原密码
	userLogin := model.Login{}
	err = userLogin.GetLoginInfo(loginParams.Account, method)
	switch err {
	case nil:
		// 检查密码
		match, _ := utils.CheckPasswd(loginParams.Password, userLogin.Password)
		if match {
			// 登录成功，签发token
			sToken, _ := common.NewShortToken(userLogin.Name)
			rToken, _ := common.NewRefreshToken(userLogin.Name)
			resp.Success(serializer.LoginResponse{
				Token:        sToken,
				RefreshToken: rToken,
			})
		} else {
			resp.ErrBadAccPasswd()
		}
	case sql.ErrNoRows:
		resp.Error(serializer.ErrNoUser, "用户不存在")
	default:
		resp.Error(http.StatusInternalServerError, "获取用户信息失败，数据库异常")
	}
}