// Copyright 2019 getensh.com. All rights reserved.
// Use of this source code is governed by getensh.com.

package user

import (
	"context"
	"crypto/sha256"
	"encoding/json"
	"fmt"
	"git.getensh.com/common/gopkgs/database"
	"git.getensh.com/common/gopkgs/logger"
	"git.getensh.com/common/gopkgs/util"
	"go.uber.org/zap"
	"google.golang.org/grpc/status"
	"gorm.io/gorm"
	"time"
	"xingjia-management-gateway/apis"
	"xingjia-management-gateway/consts"
	"xingjia-management-gateway/errors"
	dbmodel "xingjia-management-gateway/model"
)

//
func Login(ctx context.Context, req *apis.LoginRequest) (reply *apis.LoginReply, err error) {

	reply = &apis.LoginReply{}

	// 捕获各个task中的异常并返回给调用者
	defer func() {
		if r := recover(); r != nil {
			err = fmt.Errorf("%+v", r)
			e := &status.Status{}
			if er := json.Unmarshal([]byte(err.Error()), e); er != nil {
				logger.Error("err",
					zap.String("system_err", err.Error()),
					zap.Stack("stacktrace"))
			}
		}
	}()

	if req.User == "" || req.Password == "" {
		return reply, errors.ParamsError
	}

	p := &dbmodel.TUser{}
	db := database.DB()

	where := map[string]interface{}{
		"user": req.User,
	}

	//  查找用户是否存在
	err = p.Find(db, where)
	if err != nil {
		if err == gorm.ErrRecordNotFound {
			return reply, errors.UserNotExist
		}
		return reply, errors.DataBaseError
	}
	passwd, _ := util.GetMd5Pass(req.Password, consts.CRYPTO_KEY)
	if passwd != p.Password {
		return reply, errors.PasswordError
	}

	if p.UserType == consts.UserTypeTemp && (p.EffectiveEnd < time.Now().Unix() || p.EffectiveStart > time.Now().Unix()) {
		return reply, errors.UserNotEffective
	}

	reply.Uid = p.ID
	reply.UserType = p.UserType
	reply.EffectiveEnd = p.EffectiveEnd
	reply.EffectiveStart = p.EffectiveStart

	return reply, nil
}

func InitUser() {
	// 检查是否存在默认管理员
	p := &dbmodel.TUser{}
	count, err := p.Count(database.DB(), nil, nil)
	if err != nil {
		panic(err.Error())
	}
	if count > 0 {
		return
	}

	// 不存在则创建
	now := time.Now()
	password := fmt.Sprintf("%x", sha256.Sum256([]byte("zaq123edc")))
	md5pass, _ := util.GetMd5Pass(password, consts.CRYPTO_KEY)
	p = &dbmodel.TUser{
		User:           "admin",
		Password:       md5pass,
		CreatedAt:      now,
		UpdatedAt:      now,
		UserType:       consts.UserTypeSuper,
		RealName:       "超级管理员",
		EffectiveStart: now.Unix(),
	}
	err = p.Insert(database.DB())
	if err != nil {
		panic(err.Error())
	}
	return
}