public class DepthMapNeedle
{
	public static void main(String[] args)
	{
		if(args.length==0 || args[0].equals("-h")) help();
		if(args.length >= 2 && args[0].equals("-e"))
		{
			for(int i=1; i<args.length; i++)
			{
				JPEG image = new JPEG(args[i]);
				image.exportDepthMap();
			}
		}
		else if(args.length >=2 && args[0].equals("-s"))
		{
			for(int i=1; i<args.length; i++)
			{
				JPEG image = new JPEG(args[i]);
				image.exportSourceImage();
			}
		}
		else if(args.length >= 3 && args[0].equals("-i"))
		{
			String depthmap = args[1];
			for(int i=2; i<args.length; i++)
			{
				JPEG image = new JPEG(args[i]);
				image.injectDepthMap(depthmap);
				image.save();
			}
		}
	}
	
	public static void help()
	{
		System.out.println("Welcome to DepthMapNeedle!"
				+ "\nDepthMapNeedle is a tool to inject or extract depth information in form of depthmaps from photos shot using Google Cameras Blur function."
				+ "\n"
				+ "\nAvailable Options:"
				+ "\n'-e <file1>.jpg ... <fileN>.jpg':"
				+ "\n   Extract the depthmap from the specified photo(s). The depthmaps will be stored with the suffix \"_d.png\"."
				+ "\n'-s <file1>.jpg ... <fileN>.jpg':"
				+ "\n   Extract the unblurred source image from the photo(s). These files will be stored with the suffix \"_s.jpg\"."
				+ "\n'-i <depthmap>.png <file1>.jpg <fileN>.jpg':"
				+ "\n   Inject a png file as Depthmap into the following specified jpg files."
				+ "\n'-h':"
				+ "\n   Show this help text.");
	}
}