package service

import "dddexample/pkg/domain/entity"

func Transfer(sourceAccount, targetAccount *entity.AccountEntity, money entity.Money, exchangeRate *entity.ExchangeRate) (err error) {
	var sourceMoney = exchangeRate.ExchageTo(money)

	err = targetAccount.Deposit(money) //转入
	if err != nil {
		return err
	}

	err = sourceAccount.Withdraw(sourceMoney) //转出
	if err != nil {
		return err
	}

	return
}