private static void ReadSwitchArguments(
Action <LogType?, string[]> loggerCallback,
IEnumerable <string> args,
UserArguments userArguments,
Queue <string> argsQueue
)
{
foreach (var arg in args)
{
switch (arg)
{
case "verbose":
case "v":
userArguments.Verbose = true;
break;
case "image":
case "i":
if (argsQueue.Count < 1)
{
UsageAndExit(loggerCallback, @"File switch wasn't provided a file name (ex: C:\gecko.bmp)");
}
userArguments.ImageFile = argsQueue.Dequeue();
break;
case "fit":
case "f":
if (argsQueue.Count < 1)
{
UsageAndExit(loggerCallback, "Visual Studio switch wasn't provided a version number (ex: 2017).");
}
var fit = argsQueue.Dequeue().ToLower();
userArguments.Style = fit switch
{
"fill" => Wallpaper.Style.Fill,
"fit" => Wallpaper.Style.Fit,
"stretch" => Wallpaper.Style.Stretch,
"center" => Wallpaper.Style.Center,
"span" => Wallpaper.Style.Span,
_ => Wallpaper.Style.Tile,
};
break;
case "help":
case "?":
UsageAndExit(loggerCallback);
break;
default:
UsageAndExit(loggerCallback, $"Unknown argument: {arg}");
break;
}
}
}
private static void ReadNonSwitchArgument(Action <LogType?, string[]> loggerCallback, ref UserArguments userArguments, string arg)
{
if (userArguments.ImageFile != null)
{
UsageAndExit(loggerCallback,
$"Only one image file argument is allowed. Two were provided: {userArguments.ImageFile}, {arg}");
}
if (!File.Exists(arg))
{
throw new FileNotFoundException($"File could not be found: {arg}");
}
userArguments.ImageFile = arg;
}