internal static Dictionary<String, String> TransactionalApply(Boolean UseDistinctFolder, Boolean UseServerFilenames,
String MaxDownloadThreads, String SavedFilesPath, String UserAgent, String FilenameTemplate)
{
Dictionary<String, String> output = new Dictionary<string, string>();
if (UserAgent.HasAlphaNumericChars() == false)
{
output.Add(UserAgent.MemberName(_ => UserAgent), "User-Agent can not be empty");
}
if (SavedFilesPath.HasAlphaNumericChars() == false)
{
output.Add(SavedFilesPath.MemberName(_ => SavedFilesPath), "File path for saving files can not be empty");
}
else if (FilePathTools.IsValidFilePath(SavedFilesPath) == false)
{
output.Add(SavedFilesPath.MemberName(_ => SavedFilesPath), "File path is invalid");
}
Nullable<Byte> mdt = MaxDownloadThreads.TryParseNumber<Byte>(NumberStyles.None, CultureInfo.InvariantCulture);
if (mdt == null)
{
output.Add(MaxDownloadThreads.MemberName(_ => MaxDownloadThreads), "Value '" + MaxDownloadThreads+"' is invalid");
}
Char[] intersects = FilenameTemplate.ToCharArray().Intersect(Path.GetInvalidFileNameChars()).ToArray();
if (intersects.IsNullOrEmpty()==false)
{
output.Add(FilenameTemplate.MemberName(_ => FilenameTemplate)+"1",
"Filename template contains next invalid characters: "+intersects.ConcatToString(", ")+".");
}
if (FilenameTemplate.Contains(_TITLE_TOKEN, StringComparison.Ordinal) == false &&
FilenameTemplate.Contains(_NUMBER_TOKEN, StringComparison.Ordinal) == false)
{
output.Add(FilenameTemplate.MemberName(_ => FilenameTemplate)+"2",
"Filename template must contain "+_TITLE_TOKEN+" or "+_NUMBER_TOKEN+" token");
}
if (output.Any() == true)
{
return output;
}
Byte value = mdt.Value > (Byte)99 ? (Byte)99 : mdt.Value;
ProgramSettings._instance =
new ProgramSettings(UseDistinctFolder, UseServerFilenames, value, SavedFilesPath.Trim(), UserAgent.Trim(), FilenameTemplate.Trim());
return null;
}
internal static Boolean SetDefault()
{
if (ProgramSettings._default.IsDefault == true) { return false; }
ProgramSettings._instance = ProgramSettings._default;
return true;
}