/// <summary>
/// Backs up all given bitmaps and replaces them with the given placeholder.
/// </summary>
/// <param name="bitmapPaths">Array of bitmaps to back up and replace.</param>
/// <param name="placeholderPath">Path to the placeholder file.</param>
public static async Task ApplyPlaceholderAsync(string[] bitmapPaths, string placeholderPath)
{
var tasks = new List <Task>();
for (var i = 0; i < bitmapPaths.Length; i++)
{
var file = bitmapPaths[i];
var bbkpFile = $"{file}.{Extension}";
// looks like: [1/10]
var progress = Ascii.Progress(i, bitmapPaths.Length);
// check if the current file has been handled in a previous execution
if (!file.Contains(Extension) && !File.Exists(bbkpFile))
{
tasks.Add(Task.Run(() =>
{
Line.Write($"{progress}\t| HANDLING {file}", ConsoleColor.Green);
// backup by renaming, and replace with the placeholder
File.Move(file, bbkpFile);
File.Copy(placeholderPath, file);
}));
}
else
{
Line.Write($"{progress}\t| SKIPPING {file}", ConsoleColor.Yellow);
}
}
await Task.WhenAll(tasks);
}
/// <summary>
/// Restores the backed up bitmaps and discards the placeholders.
/// </summary>
/// <param name="bitmapBbkpPaths">
/// Bitmaps to restore. They must end in ".bbkp"!
/// </param>
/// <exception cref="InvalidEnumArgumentException">
/// One of the files in the array is not a ".bbkp" file.
/// </exception>
public static void ResetBitmapFiles(string[] bitmapBbkpPaths)
{
Console.ForegroundColor = ConsoleColor.Green;
for (var i = 0; i < bitmapBbkpPaths.Length; i++)
{
var currentFile = bitmapBbkpPaths[i];
if (!currentFile.Contains($".{Extension}"))
{
throw new InvalidEnumArgumentException($"Bitmap '{currentFile}' is not a backup file.");
}
var placeholder = currentFile.Substring(0, currentFile.Length - Extension.Length - 1);
var progress = Ascii.Progress(i, bitmapBbkpPaths.Length);
Line.Write($"{progress}\t| RESTORING {placeholder}", ConsoleColor.Green);
File.Delete(placeholder);
File.Move(currentFile, placeholder);
}
}