public IngestionItem WithDurationAndFileSizeByReadingFile(string?basePath = null)
{
var fullPath = basePath is null
? FilePath
: Path.Combine(basePath, FilePath);
return(new IngestionItem(
FilePath,
new FileInfo(fullPath).Length,
Tag,
Timestamp,
FFMpeg.ParseDuration(fullPath)));
}
public static IngestionItem FromFileSystem(
string?basePath,
string fullPath,
Match?metadataMatch,
bool parseDuration = true)
{
var path = basePath is null
? fullPath
: fullPath.Substring(basePath.Length + 1);
var fileSize = new FileInfo(fullPath).Length;
if (metadataMatch is null)
{
return(new IngestionItem(path, fileSize));
}
var tzString = Match("zzzz", "zzz", "zz", "z");
var tzOffset = TimeZoneInfo.Local.BaseUtcOffset;
if (tzString is string)
{
tzString = tzString.Replace(":", string.Empty);
if (int.TryParse(tzString, out var tzInt))
{
tzOffset = TimeSpan
.FromHours(tzInt / 100)
.Add(TimeSpan.FromMinutes(Math.Abs(tzInt % 100)));
}
else
{
tzOffset = TimeZoneInfo
.FindSystemTimeZoneById(tzString)
.BaseUtcOffset;
}
}
var timestamp = new DateTimeOffset(
MatchInt("yyyyy", "yyyy", "yyy", "yy") ?? 1,
MatchInt("MM", "M") ?? 1,
MatchInt("dd", "d") ?? 1,
MatchInt("HH", "H") ?? 0,
MatchInt("mm", "m") ?? 0,
MatchInt("ss", "s") ?? 0,
tzOffset);
TimeSpan?duration = null;
if (parseDuration)
{
duration = FFMpeg.ParseDuration(fullPath);
}
return(new IngestionItem(
path,
fileSize,
Match("tag"),
timestamp,
duration));
string?Match(params string[] keys)
{
// FIXME: Roslyn: this should never be null
if (metadataMatch is null)
{
return(null);
}
foreach (var key in keys)
{
if (metadataMatch.Groups.TryGetValue(key, out var group) && group.Success)
{
return(group.Value);
}
}
return(null);
}
int?MatchInt(params string[] keys)
{
// FIXME: Roslyn: this should never be null
if (metadataMatch is null)
{
return(null);
}
foreach (var key in keys)
{
if (metadataMatch.Groups.TryGetValue(key, out var group) &&
group.Success &&
int.TryParse(group.Value, out var intValue))
{
return(intValue);
}
}
return(null);
}
}
