public void Execute(string input)
{
//Remove question mark
input = input.Substring(0, input.Length - 1);
string[] parts = input.Split(new string[] { " is " }, StringSplitOptions.RemoveEmptyEntries);
string[] preIsWords = parts[0].Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
string[] postIsWords = parts[1].Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
string sourceCommodity = postIsWords.Skip(postIsWords.Length - 1).ToString();
string destinationCommodity = preIsWords[2];
string[] aliases = postIsWords.Take(postIsWords.Length - 1).ToArray();
StringBuilder sb = new StringBuilder();
//Create Roman Numeral from aliases
for (int i = 0; i < aliases.Length - 1; i++)
{
sb.Append(aliasMap.GetValueForAlias(aliases[i]));
}
double sourceCommodityPrice = commodityIndex.GetPriceByCommodity(sourceCommodity);
double destinationCommodityPrice = commodityIndex.GetPriceByCommodity(destinationCommodity);
//Convert Roman to Decimal
double?totalUnits = converter.ToDecimal(sb.ToString());
if (totalUnits.HasValue)
{
double totalSourceCommodity = sourceCommodityPrice * totalUnits.Value;
Console.WriteLine(String.Format("{0} is {1} {2}", parts[1], (totalSourceCommodity / destinationCommodityPrice), destinationCommodity));
}
}
public void UnitExpressionTest()
{
AliasMapper aliasMap = new AliasMapper();
RomanConverter converter = new RomanConverter();
CommodityIndex commodityIndex = new CommodityIndex();
aliasMap.AddAlias("glob", "C");
aliasMap.AddAlias("pish", "X");
ExpressionValidationHelper helper = new ExpressionValidationHelper(aliasMap, commodityIndex);
UnitExpression expression = new UnitExpression(commodityIndex, aliasMap, converter, helper);
expression.Execute("pish glob Iron is 7020 Credits");
Assert.IsTrue(commodityIndex.Exists("Iron"));
Assert.AreEqual <double>(commodityIndex.GetPriceByCommodity("Iron"), 78);
expression.Execute("pish glob Iron is 6300 Credits");
Assert.AreEqual <double>(commodityIndex.GetPriceByCommodity("Iron"), 70);
}
public void UnitExpressionTest()
{
AliasMapper aliasMap = new AliasMapper();
RomanConverter converter = new RomanConverter();
CommodityIndex commodityIndex = new CommodityIndex();
aliasMap.AddAlias("glob", "I");
aliasMap.AddAlias("prok", "V");
aliasMap.AddAlias("pish", "X");
aliasMap.AddAlias("tegj", "L");
ExpressionValidationHelper helper = new ExpressionValidationHelper(aliasMap, commodityIndex);
UnitExpression expression = new UnitExpression(commodityIndex, aliasMap, converter, helper);
expression.Execute("glob glob silver is 34 Credits");
Assert.True(commodityIndex.Exists("silver"));
Assert.Equal <double>(17, commodityIndex.GetPriceByCommodity("silver"));
expression.Execute("glob prok iron is 400 Credits");
Assert.Equal <double>(100, commodityIndex.GetPriceByCommodity("iron"));
}
public void Execute(string input)
{
//Remove question mark
input = input.Substring(0, input.Length - 1);
string[] parts = input.Split(new string[] { " is " }, StringSplitOptions.RemoveEmptyEntries);
string[] words = parts[1].Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
string commodity = words[words.Length - 1];
StringBuilder sb = new StringBuilder();
//Create Roman Numeral from aliases
for (int i = 0; i < words.Length - 1; i++)
{
sb.Append(aliasMap.GetValueForAlias(words[i]));
}
//Convert Roman to Decimal
double?totalUnits = converter.ToDecimal(sb.ToString());
if (totalUnits.HasValue)
{
Console.WriteLine(String.Format("{0} is {1}", parts[1], totalUnits.Value * commodityIndex.GetPriceByCommodity(commodity)));
}
}