public CarInfo GetCarInfo(string vin)
{
CarInfo ret = null;
if (mWmiLookup != null)
{
string key = vin.Substring(0, 3);
if (mWmiLookup.ContainsKey(key))
{
ret = mWmiLookup[key];
}
else
{
key = vin.Substring(0, 2);
if (mWmiLookup.ContainsKey(key))
{
ret = mWmiLookup[key];
}
}
}
if (ret == null)
{
ret = new CarInfo
{
CarType = CarType.Unknown,
Make = "Unknown",
Model = "Unknown"
};
}
if (mMakeLookup != null)
{
MakeMap map = null;
if (mMakeMaps.ContainsKey(vin.Substring(0, 3)))
{
map = mMakeMaps[vin.Substring(0, 3)];
}
else if (mMakeLookup.ContainsKey(vin.Substring(0, 2)))
{
map = mMakeMaps[vin.Substring(0, 2)];
}
if (map != null)
{
ExpandCarInfo(ret, map, vin);
}
}
if (string.IsNullOrEmpty(ret.Model))
{
ret.Model = "Unknown";
}
if (string.IsNullOrEmpty(ret.Make))
{
ret.Make = "Unknown";
}
return(ret);
}
private void ExpandCarInfo(CarInfo info, MakeMap map, string vin)
{
for (int i = map.MaxLength; i >= 1; i--)
{
string part = vin.Substring(map.StartDigit - 1, i);
if (map.Map.ContainsKey(part))
{
if (map.Map[part].CarType != CarType.Unknown)
{
info.CarType = map.Map[part].CarType;
}
if (!string.IsNullOrEmpty(map.Map[part].Model))
{
info.Model = map.Map[part].Model;
}
return;
}
}
}
