public void Create(string message)
{
//Loads the files in the working directory
Version working = directory.GetWorkingVersion();
//Aggregates the files from all commits up to HEAD
Head head = directory.GetHead();
Commit parentCommit = head.GetTarget();
AggregatedChangelog parentAggregate = parentCommit.AggregateChangelog();
Version parent = directory.AggregateVersion(parentAggregate);
//Creates the data fields for commit
Changelog diffChangelog = parent.GetChangelog(working);
Version diffVersion = working.GetChangelogVersion(diffChangelog);
CommitMetadata metadata = new CommitMetadata(message);
//Creates the commit
Commit newCommit = new Commit(parentCommit, diffChangelog, diffVersion, metadata);
//Adds the data fields to the file directory
directory.CreateVersion(diffVersion);
directory.CreateChangelog(diffChangelog);
directory.CreateCommit(newCommit);
//Update the position of the HEAD
directory.UpdateHead(head, newCommit);
}