//return a repo of change based on the amount of coins currently in this repo
public ICurrencyRepo MakeChange(double Amount)
{
//create temporary repo
CurrencyRepo temp = new CurrencyRepo();
//while the amount is greater than 0, add coins
while (Amount > 0)
{
Amount = Math.Round(Amount, 2);
//If the amount is greater than or equal to 1 and the current repo has a dollar coin,
//add the dollar coin to the new repo and remove it from the current repo
if (Amount >= 1 &&
Coins.Exists(x => x.MonetaryValue == 1))
{
DollarCoin dollar = new DollarCoin();
temp.AddCoin(dollar);
RemoveCoin(Coins.Find(x => x.MonetaryValue == 1));
Amount--;
}
//If the amount is greater than or equal to .5 and the current repo has a half dollar,
//add the half dollar to the new repo and remove it from the current repo
else if (Amount >= .5 &&
Coins.Exists(x => x.MonetaryValue == .5))
{
HalfDollar dollar = new HalfDollar();
temp.AddCoin(dollar);
RemoveCoin(Coins.Find(x => x.MonetaryValue == .5));
Amount -= .5;
}
//If the amount is greater than or equal to .25 and the current repo has a quarter,
//add the quarter to the new repo and remove it from the current repo
else if (Amount >= .25 &&
Coins.Exists(x => x.MonetaryValue == .25))
{
Quarter quater = new Quarter();
temp.AddCoin(quater);
RemoveCoin(Coins.Find(x => x.MonetaryValue == .25));
Amount -= .25;
}
//If the amount is greater than or equal to .1 and the current repo has a dime,
//add the dime to the new repo and remove it from the current repo
else if (Amount >= .1 &&
Coins.Exists(x => x.MonetaryValue == .1))
{
Dime dime = new Dime();
temp.AddCoin(dime);
RemoveCoin(Coins.Find(x => x.MonetaryValue == .1));
Amount -= .1;
}
//If the amount is greater than or equal to .05 and the current repo has a nickel,
//add the nickel to the new repo and remove it from the current repo
else if (Amount >= .05 &&
Coins.Exists(x => x.MonetaryValue == .05))
{
Nickel nickel = new Nickel();
temp.AddCoin(nickel);
RemoveCoin(Coins.Find(x => x.MonetaryValue == .05));
Amount -= .05;
}
//If the amount is greater than or equal to .01 and the current repo has a penny,
//add the penny to the new repo and remove it from the current repo
else if (Amount >= .01 &&
Coins.Exists(x => x.MonetaryValue == .01))
{
Penny penny = new Penny();
temp.AddCoin(penny);
RemoveCoin(Coins.Find(x => x.MonetaryValue == .01));
Amount -= .01;
}
//If there aren't enough coins then zero out the amount to break the loop
else if (this.TotalValue() > Amount)
{
Amount = 0;
}
}
return(temp);
}