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

package db

import (
	"context"
	"cp-organization-management/errors"
	"cp-organization-management/model"
	pb_v1 "cp-organization-management/pb/v1"
	"cp-organization-management/utils"
	"encoding/json"
	"fmt"

	"github.com/jinzhu/gorm"

	"github.com/jaryhe/gopkgs/database"

	"github.com/jaryhe/gopkgs/logger"
	"go.uber.org/zap"
	"google.golang.org/grpc/status"
)

func initTable(db *gorm.DB, dbname string) error {
	err := model.NewDevice(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}
	err = model.NewRbacGroup(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewRbacUser(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewRbacNode(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewStaff(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewStaffType(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewStation(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewUserZone(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewTLog(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	err = model.NewZone(dbname).CreateTable(db)
	if err != nil {
		return errors.DataBaseError
	}

	zoneIndexSql := fmt.Sprintf("ALTER TABLE `%s`.`t_zone` ADD UNIQUE INDEX `code_index`(`zone_code`) USING BTREE", dbname)
	err = db.Exec(zoneIndexSql).Error
	if err != nil {
		return errors.DataBaseError
	}
	p := model.NewZone(dbname)
	p.ZoneCode = "001"
	p.ParentZoneCode = "000"
	p.ZoneName = "全部区域"
	err = p.Insert(database.DB())
	if err != nil {
		return errors.DataBaseError
	}
	return nil
}

func initDb(ctx context.Context, organizationCode string) error {
	dbname := utils.GetDbName(organizationCode)
	// create database
	createDbSql := fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s DEFAULT CHARSET utf8 COLLATE utf8_general_ci;", dbname)
	db := database.DB()
	err := db.Exec(createDbSql).Error
	if err != nil {
		return errors.DataBaseError
	}

	err = initTable(db, dbname)
	if err != nil {
		return errors.DataBaseError
	}
	createViewSql := fmt.Sprintf("CREATE VIEW `%s`.`view_user` AS select t1.*, t2.zone_code, t3.zone_name, t3.level as zone_level from %s.t_rbac_user as t1 left join %s.t_user_zone as t2 on t1.id=t2.user_id left join %s.t_zone as t3 on t2.zone_code=t3.zone_code;", dbname, dbname, dbname, dbname)
	err = db.Exec(createViewSql).Error
	if err != nil {
		return errors.DataBaseError
	}


	return nil
}

// 初始化机构schema
func InitOrganizationDb(ctx context.Context, req *pb_v1.InitOrganizationDbRequest) (reply *pb_v1.InitOrganizationDbReply, err error) {
	reply = &pb_v1.InitOrganizationDbReply{}

	// 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.OrganizationCode == "" {
		return reply, status.Error(10003, "参数错误，机构编码为空")
	}

	err = initDb(ctx, req.OrganizationCode)

	return reply, err
}