package repository

import (
	"electricity_bill_calc/cache"
	"electricity_bill_calc/global"
	"electricity_bill_calc/model"
)

type _RegionRepository struct{}

var RegionRepo _RegionRepository

func (_RegionRepository) FetchRegion(code string) (*model.Region, error) {
	cachedRegion, _ := cache.RetreiveData[model.Region]("region", code)
	if cachedRegion != nil {
		return cachedRegion, nil
	}
	region := new(model.Region)
	has, err := global.DBConn.ID(code).NoAutoCondition().Get(region)
	if has {
		cache.CacheData(region, "region", code)
	}
	return _postProcessSingle(region, has, err)
}