egg_app/app/svc/svc_home_page.go

package svc

import (
	"applet/app/db"
	"code.fnuoos.com/EggPlanet/egg_models.git/src/implement"
	"code.fnuoos.com/EggPlanet/egg_models.git/src/model"
	"github.com/shopspring/decimal"
	"time"
	"xorm.io/xorm"
)

// CalcTodayEggEnergyPriceRises 计算蛋蛋能量今日涨跌幅
func CalcTodayEggEnergyPriceRises(engine *xorm.Engine, now time.Time) (err error, rises float64, isRises bool, nowPrice string, initialPrice string) {

	//1、查找昨日价格、今日价格 计算涨跌幅
	var m *model.EggEnergyPrice
	dateStr := now.AddDate(0, 0, -1).Format("2006-01-02")
	hourStr := now.AddDate(0, 0, -1).Hour()
	priceDb := implement.NewEggEnergyPriceDb(db.Db)
	m, err = priceDb.EggEnergyPriceGetOneByParams(dateStr, hourStr)
	if err != nil {
		return err, 0, false, "", ""
	}
	initialPrice = m.Price
	// todo 有数据后不需要此判断
	if initialPrice == "" {
		initialPrice = "1"
	}
	yesterdayPrice, _ := decimal.NewFromString(initialPrice)
	coreDataDb := implement.NewEggEnergyCoreDataDb(db.Db)
	coreData, err := coreDataDb.EggEnergyCoreDataGet()
	if err != nil {
		return err, 0, false, "", ""
	}
	nowPrice = coreData.NowPrice
	todayPrice, _ := decimal.NewFromString(coreData.NowPrice)
	if todayPrice.GreaterThanOrEqual(yesterdayPrice) {
		isRises = true
		rises, _ = todayPrice.Sub(yesterdayPrice).Div(yesterdayPrice).Float64()
	} else {
		rises, _ = yesterdayPrice.Sub(todayPrice).Div(todayPrice).Float64()
	}
	return nil, rises, isRises, nowPrice, initialPrice
}