/// <summary>
/// Main method. First argument should be a filename, otherwise it will prompt the user.
/// A path ending with ".md" will be considered a single-file output. Otherwise, the output
/// will be a directory with a .md file for each slide. In both cases, images will be output
/// as separate files alongside the slide(s). If no argument was provided, the output will
/// be printed, and no image files will be written.
/// </summary>
/// <param name="args">The arguments.</param>
public static void Main(string[] args)
{
string file = GetFilename(args);
string output = GetOutput(args);
ISlideFormatter format = GetFormat(args);
using (ISlideParser parser = GetParser(file))
{
var slides = parser.Parse();
GenerateOutput(output, slides, format);
}
}
/// <summary>
/// Generates the output with the specified formatter.
/// </summary>
/// <param name="output">The output path. May be null to represent STDOUT.</param>
/// <param name="parsedSlides">The parsed slides.</param>
/// <param name="formatter">The output specifier.</param>
private static void GenerateOutput(string output, List <Model.Slide> parsedSlides, ISlideFormatter formatter)
{
// Scrub empty strings
parsedSlides.ForEach(slide => {
slide.Titles.RemoveAll(s => String.IsNullOrWhiteSpace(s));
slide.SubTitles.RemoveAll(s => String.IsNullOrWhiteSpace(s));
slide.Bullets.RemoveAll(b => String.IsNullOrWhiteSpace(b.Text));
});
bool consoleOut = output == null;
bool singleFileOutput = false;
string outputDirectory = null;
if (!consoleOut)
{
singleFileOutput = output.EndsWith(".MD", StringComparison.CurrentCultureIgnoreCase);
outputDirectory = singleFileOutput ?
output.Substring(0, output.LastIndexOf(Path.DirectorySeparatorChar)) :
output;
Directory.CreateDirectory(outputDirectory);
var imgOutputDirectory = outputDirectory + Path.DirectorySeparatorChar + "img";
Directory.CreateDirectory(imgOutputDirectory);
// Dump the image files
foreach (var slide in parsedSlides)
{
for (int i = 0; i < slide.Images.Count; i++)
{
string fileName = imgOutputDirectory +
Path.DirectorySeparatorChar +
$"{slide.ID.ToString()}-img{i + 1}.jpg";
slide.Images[i].Data.Save(fileName);
}
}
}
var lastDir = outputDirectory != null ?
"/" + outputDirectory.Substring(outputDirectory.LastIndexOf(Path.DirectorySeparatorChar) + 1) :
String.Empty;
var imgPath = $".{lastDir}/img";
// One long dump of markdown, put it all in a StringBuilder and vomit
if (consoleOut || singleFileOutput)
{
var markdownString = new StringBuilder();
parsedSlides.ForEach(slide => markdownString.Append(formatter.Convert(slide, imgPath)));
if (consoleOut)
{
Console.Write(markdownString.ToString());
// Give the user a chance to copy it all out before the shell potentially dies.
Console.WriteLine("END OF SLIDESHOW - PRESS ANY KEY TO EXIT");
Console.ReadKey();
}
else
{
File.WriteAllText(output, markdownString.ToString());
}
}
else
{
// Dump each slide individually
for (int i = 0; i < parsedSlides.Count; i++)
{
File.WriteAllText(output + Path.DirectorySeparatorChar + $"slide{i + 1}.MD", formatter.Convert(parsedSlides[i], imgPath));
}
}
}