public static string LookupUpEmailSourceCode(string sourceCode)
{
var sourceType = sourceCode[0];
var subType = sourceCode[1];
var hyphenPos = sourceCode.IndexOf('-');
var stateCode = Empty;
if (hyphenPos <= 0 || hyphenPos > 2 || sourceCode.Length < hyphenPos + 2)
{
return(null);
}
switch (sourceType)
{
case 'S':
case 'C':
case 'L':
if (sourceCode.Length < 5)
{
return(null);
}
if (subType != 'P' && subType != 'A')
{
return(null);
}
stateCode = sourceCode.Substring(hyphenPos + 1, 2);
hyphenPos = 4;
if (!StateCache.IsValidStateCode(stateCode))
{
return(null);
}
break;
case 'P':
if (subType != 'M' && subType != 'C' && subType != 'S' && subType != 'V')
{
return(null);
}
break;
case 'A':
case 'Z':
case 'O':
break;
default:
return(null);
}
var idString = sourceCode.Substring(hyphenPos + 1);
if (!int.TryParse(idString, out var id) && sourceType != 'S')
{
return(null);
}
switch (sourceType)
{
case 'S':
switch (subType)
{
case 'P':
return(States.GetContactEmail(stateCode));
case 'A':
return(States.GetAltEmail(stateCode));
}
break;
case 'C':
switch (subType)
{
case 'P':
return(Counties.GetContactEmail(stateCode, idString));
case 'A':
return(Counties.GetAltEmail(stateCode, idString));
}
break;
case 'L':
switch (subType)
{
case 'P':
return(LocalDistricts.GetContactEmail(stateCode, idString));
case 'A':
return(LocalDistricts.GetAltEmail(stateCode, idString));
}
break;
case 'P':
switch (subType)
{
case 'M':
return(Politicians.GetEmailById(id));
case 'C':
return(Politicians.GetCampaignEmailById(id));
case 'S':
return(Politicians.GetStateEmailById(id));
case 'V':
return(Politicians.GetEmailVoteUSAById(id));
}
break;
case 'A':
return(Addresses.GetEmailById(id));
case 'Z':
return(PartiesEmails.GetPartyEmailById(id));
case 'O':
return(OrganizationContacts.GetEmailByContactId(id));
}
return(null);
}