private static void EnrichWithMissingFiles(BestMatchInfo bestMatchInfo, string outputDirPath)
{
var a = bestMatchInfo.MatchingFiles.First(); // NOTE: there are at least 2 files in the list (see previous note)
for (var i = 1; i < bestMatchInfo.MatchingFiles.Count; i++)
{
var b = bestMatchInfo.MatchingFiles[i];
var nbMissingNumbers = b.Number - a.Number - 1;
var missingNum = a.Number;
while ((nbMissingNumbers--) > 0)
{
missingNum++;
var missingNumStr = bestMatchInfo.RefNumberSeemsPadded ? missingNum.ToPaddedString(bestMatchInfo.RefNumberStr.Length) : missingNum.ToString();
var missingFileName = bestMatchInfo.Prefix + missingNumStr + bestMatchInfo.Suffix;
var missingFilePath = Path.Combine(outputDirPath, missingFileName);
var missingMatchingFile = new MatchingFile(new FileInfo(missingFilePath), missingNumStr, missingNum);
bestMatchInfo.MatchingFiles.Insert(i++, missingMatchingFile);
}
a = b;
}
}
/// <summary>
/// Try to guess the list of files to join according to the given file example
/// </summary>
/// <param name="exampleFile"></param>
/// <param name="inputFiles"></param>
/// <param name="outputFile"></param>
/// <param name="guessMissingFiles"></param>
/// <returns></returns>
public static bool TryGuessFilesToJoin(string exampleFile, out string[] inputFiles, out string outputFile, bool guessMissingFiles = true)
{
var exampleFileInfo = new FileInfo(exampleFile);
var exampleFileDirectory = exampleFileInfo.Directory;
if (exampleFileDirectory == null || !exampleFileDirectory.Exists)
{
inputFiles = new string[0];
outputFile = "";
return(false);
}
var allFiles = exampleFileDirectory.GetFiles();
var regex = new Regex("\\d+");
var exampleFileName = exampleFileInfo.Name;
BestMatchInfo?bestMatchInfo = null;
foreach (Match numberMatch in regex.Matches(exampleFileName))
{
var prefixTmp = exampleFileName.Substring(0, numberMatch.Index);
var suffixTmp = exampleFileName.Substring(numberMatch.Index + numberMatch.Length);
var refNumber = numberMatch.Value;
var matchingFiles = ListMatchingFiles(prefixTmp, refNumber, suffixTmp, allFiles, out var refNumberSeemsPadded);
if (matchingFiles.Count < 2) // NOTE: At least 2 files needed (the current matching file + another)
{
continue;
}
if (bestMatchInfo == null || matchingFiles.Count > bestMatchInfo.MatchingFiles.Count)
{
bestMatchInfo = new BestMatchInfo(matchingFiles, prefixTmp, suffixTmp, refNumber, refNumberSeemsPadded);
}
}
if (bestMatchInfo == null)
{
inputFiles = new string[0];
outputFile = "";
return(false);
}
if (guessMissingFiles)
{
EnrichWithMissingFiles(bestMatchInfo, exampleFileDirectory.FullName);
}
inputFiles = bestMatchInfo.MatchingFiles.Select(m => m.FileInfo.FullName).ToArray();
outputFile = Path.Combine(exampleFileDirectory.FullName, BuildOutputFileName(bestMatchInfo.Prefix, bestMatchInfo.Suffix, exampleFileDirectory.FullName));
return(true);
}
