package service

import (
	"errors"
	"fmt"
	"hospital-admin-api/api/dao"
	"hospital-admin-api/api/model"
	"hospital-admin-api/api/requests"
	"hospital-admin-api/global"
	"strconv"
)

type AreaService struct{}

// AddArea 新增地区
func (r *AreaService) AddArea(req requests.AddArea) (bool, error) {
	if *req.AreaType == 1 {
		return false, errors.New("不可添加国家")
	}

	// 检测上级是否存在
	maps := make(map[string]interface{})
	maps["parent_id"] = req.ParentId
	if *req.AreaType == 4 {
		maps["area_type"] = 3
	}
	if *req.AreaType == 3 {
		maps["area_type"] = 2
	}

	if *req.AreaType == 2 {
		maps["area_type"] = 1
	}

	areaDao := dao.AreaDao{}
	_, err := areaDao.GetAreaList(maps)
	if err != nil {
		return false, errors.New("上级地区错误")
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
			fmt.Println(r)
		}
	}()

	parentId, err := strconv.ParseInt(req.ParentId, 10, 64)
	if err != nil {
		tx.Rollback()
		return false, errors.New("新增失败")
	}

	// 新增优惠卷表
	area := &model.Area{
		AreaName: req.AreaName,
		ParentId: parentId,
		Zip:      req.Zip,
		AreaType: *req.AreaType,
	}

	area, err = areaDao.AddArea(tx, area)
	if err != nil || area == nil {
		tx.Rollback()
		return false, errors.New(err.Error())
	}

	tx.Commit()
	return true, nil
}

// PutArea 修改地区
func (r *AreaService) PutArea(areaId int, req requests.PutArea) (bool, error) {
	areaDao := dao.AreaDao{}
	area, err := areaDao.GetAreaById(areaId)
	if err != nil {
		return false, err
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
			fmt.Println(r)
		}
	}()

	areaData := make(map[string]interface{})

	if req.AreaName != area.AreaName {
		areaData["area_name"] = req.AreaName
	}

	if req.Zip != "" {
		if req.Zip != area.Zip {
			areaData["zip"] = req.Zip
		}
	}

	if len(areaData) > 0 {
		err = areaDao.EditAreaById(tx, areaId, areaData)
		if err != nil || area == nil {
			tx.Rollback()
			return false, errors.New(err.Error())
		}
	}

	tx.Commit()
	return true, nil
}