public DirectoryScanResult ScanDirectory(string directoryPath)
{
var filesToScan = _getFilesToProcess(directoryPath);
Console.WriteLine($"Found {filesToScan.Count} files to process.");
var result = new DirectoryScanResult();
foreach (var file in filesToScan)
{
try
{
var directories = ImageMetadataReader.ReadMetadata(file);
var subIfdDirectory = directories.OfType <ExifSubIfdDirectory>().FirstOrDefault();
var dateTakenText = subIfdDirectory?.Tags?.FirstOrDefault(x =>
string.Equals(x.Name, ExifDateTimeTagName, StringComparison.OrdinalIgnoreCase))?.Description;
DateTime?parsedDateTime = ExifDateTimeParser.Parse(dateTakenText);
if (parsedDateTime.HasValue)
{
if (!result.StartingDate.HasValue || result.StartingDate > parsedDateTime.Value)
{
result.StartingDate = parsedDateTime.Value;
}
if (!result.EndingDate.HasValue || result.EndingDate < parsedDateTime.Value)
{
result.EndingDate = parsedDateTime.Value;
}
}
}
catch (ImageProcessingException ex)
{
Console.WriteLine($"Error while processing the file '{file}': {ex.Message}");
}
}
return(result);
}
public void UpdateDirectoryName(string directoryPath, DirectoryScanResult scanResult)
{
var directoryName = new DirectoryInfo(directoryPath).Name;
if (scanResult.StartingDate.HasValue && scanResult.EndingDate.HasValue)
{
// start and end dates are set
if (scanResult.StartingDate.Value.Year != scanResult.EndingDate.Value.Year)
{
Console.WriteLine("Detected a directory that has pictures taken in different years, skipping.");
return;
}
string suggestedDirectoryName;
if (scanResult.StartingDate.Value.Month != scanResult.EndingDate.Value.Month)
{
suggestedDirectoryName =
$"{scanResult.StartingDate.Value.ToString("yyyy-MM-dd")}-{scanResult.EndingDate.Value.ToString("yyyy-MM-dd")} {directoryName}";
}
else if (scanResult.StartingDate.Value.Day != scanResult.EndingDate.Value.Day)
{
suggestedDirectoryName =
$"{scanResult.StartingDate.Value.ToString("yyyy-MM-dd")}-{scanResult.EndingDate.Value.ToString("yyyy-MM-dd")} {directoryName}";
}
else
{
suggestedDirectoryName = $"{scanResult.StartingDate.Value.ToString("yyyy-MM-dd")} {directoryName}";
}
Console.WriteLine($"Changing {directoryName} -> {suggestedDirectoryName}");
Directory.Move(directoryPath, directoryPath.Replace(directoryName, suggestedDirectoryName));
}
else
{
Console.WriteLine($"Directory {directoryName} did not return any scan result, no need to change its name.");
}
}