public NewMail(OldMail oldMail, int _dMail,
int _uMail, int _iMail, string _remark = null)
{
//FormType 3 = LETTERS, MailType 1 = 2017-LetterMail
MailDate = oldMail.MailDate;
AckID = oldMail.AckNo;
FormID = 3;
MailType = oldMail.MailType;
MailTypeID = 1;
Pieces = oldMail.Pieces;
Postage = oldMail.Postage;
DomesticMail = _dMail;
USMail = _uMail;
IntlMail = _iMail;
Remark = _remark;
}
//Convert Function from old to new
public static List <NewMail> FormatSolver(OldMail oldMail)
{
List <NewMail> result = new List <NewMail>();
int sum;
//in 2016 domestic rate = 0.74, US rate 1.19, Int'l rate 2.36
//in 2017 domestic rate = 0.76, US rate 1.19, Int'l rate 2.42
decimal cr = 0.76M, ur = 1.19M, tr = 2.42M, cost;
sum = oldMail.Pieces;
cost = oldMail.Postage;
if (sum * cr == cost)
{
result.Add(new NewMail(oldMail, sum, 0, 0));
}
else if (sum * tr == cost)
{
result.Add(new NewMail(oldMail, 0, 0, sum));
}
else if (sum * cr < cost)
{
//ur>cr && ur<tr, so need to calculate other possibilities
if (sum * ur == cost)
{
result.Add(new NewMail(oldMail, 0, sum, 0));
}
//first loop if there are only 2 values
for (int i = (sum - 1); i > 0; i--)
{
if (i * cr + (sum - i) * ur == cost)
{
result.Add(new NewMail(oldMail, i, sum - i, 0));
}
else if (i * cr + (sum - i) * tr == cost)
{
result.Add(new NewMail(oldMail, i, 0, sum - i));
}
else if (i * ur + (sum - i) * tr == cost)
{
result.Add(new NewMail(oldMail, 0, i, sum - i));
}
else
{
//second loop if there are 3 valid values
for (int j = (i - 1); j > 0; j--)
{
if (j * cr + (i - j) * ur + (sum - i) * tr == cost)
{
result.Add(new NewMail(oldMail, j, i - j, sum - i));
}
}
}
}
}
else
{
result.Add(new NewMail(oldMail, 0, 0, 0, "Invalid Data"));
}
if (result.Count < 1)
{
result.Add(new NewMail(oldMail, 0, 0, 0, "Invalid Data"));
}
else if (result.Count > 1)
{
foreach (var mail in result)
{
mail.Remark = "Multiple Results";
}
}
return(result);
}