public static TorrentVideoFileInfo Parse(string torrentFileName)
{
var dto = new TorrentVideoFileInfo();
foreach (var pattern in TorrentVideoFileNamingPattern.Patterns)
{
torrentFileName = torrentFileName.ParsePatterns(dto, pattern.Key, pattern.Value);
}
dto.Title = torrentFileName.ParseTitle();
return(dto);
}
private static string ParsePatterns(this string torrentFileName, TorrentVideoFileInfo dto, Expression <Func <TorrentVideoFileInfo, object> > property,
string pattern)
{
var result = Regex.Match(torrentFileName, pattern);
if (result.Success)
{
var match = result.Groups.Count > 1 ? result.Groups[2].Value : result.Groups[0].Value;
var raw = result.Groups.Count > 1 ? result.Groups[1].Value : result.Groups[0].Value;
if (TryAssignValue(dto, property, match))
{
torrentFileName = string.Join("", torrentFileName.Split(new[] { raw }, StringSplitOptions.RemoveEmptyEntries));
}
}
return(torrentFileName);
}
public static bool TryAssignValue(TorrentVideoFileInfo dto, Expression <Func <TorrentVideoFileInfo, object> > property, string match)
{
var key = (property.Body is MemberExpression)
? (property.Body as MemberExpression).Member.Name
: ((property.Body as UnaryExpression).Operand as MemberExpression).Member.Name;
var dtoExpression = Expression.Constant(dto);
var propertyExpression = Expression.PropertyOrField(dtoExpression, key);
if (!TryGetConvertExpression(match, propertyExpression.Type))
{
return(false);
}
var matchExpression = Expression.Constant(match);
var convertExpression = GetConvertExpression(matchExpression, propertyExpression.Type);
var assignExpression = Expression.Assign(propertyExpression, convertExpression);
var lambda = Expression.Lambda(assignExpression);
var compiledExpression = lambda.Compile();
compiledExpression.DynamicInvoke();
return(true);
}
