package gift

import (
	"github.com/shopspring/decimal"
	"live-service/app/user_center/rpc/internal/config"
)

func calcCoin(cfg *config.GameConfig, platform string, isPaid bool, price float64, num int64) int64 {
	giftToRMBRadio, _ := cfg.GiftToRMB[platform]
	freeToRadio, _ := cfg.Coin.FreeToCoin[platform]
	rmbTo := cfg.Coin.RMBToCoin

	var newPrice float64
	if isPaid {
		newPrice = price * giftToRMBRadio
	} else {
		newPrice = price * freeToRadio
	}

	decimal.DivisionPrecision = 2

	resp := decimal.NewFromFloat(newPrice).
		Mul(decimal.NewFromInt(num))
	if isPaid {
		resp = resp.Mul(decimal.NewFromFloat(rmbTo))
	}
	return resp.Round(0).IntPart()
}