//
// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu>
// Creation Date: Wed Feb 18 20:48:48 PST 2015
// Last Modified: Wed Feb 18 20:48:51 PST 2015
// Filename:      tools/tobinary.cpp
// URL:           https://github.com/craigsapp/midifile/blob/master/tools/tobinary.cpp
// Syntax:        C++11
// vim:           ts=3
//
// Description:   Convert a Standard MIDI file into binary format from
//                the binasc format (ASCII version of the MIDI file which
//                can be converted back into the binary format without
//                information loss).
//

#include "Options.h"
#include "MidiFile.h"

#include <iostream>

using namespace std;
using namespace smf;


void     checkOptions        (Options& opts);
void     example             (void);
void     usage               (const string& command);

// User interface variables:
Options  options;


///////////////////////////////////////////////////////////////////////////

int main(int argc, char** argv) {
	options.setOptions(argc, argv);
	checkOptions(options);

	int status;
	MidiFile midifile;

	if (options.getArgCount() == 2) {
		// input from first filename
		status = midifile.read(options.getArg(1));
		if (status == 0) {
			cerr << "Error: could not read MIDI file " << options.getArg(1) << endl;
			exit(1);
		}
		status = midifile.write(options.getArg(2));
		if (status == 0) {
			cerr << "Error: could not write MIDI file " << options.getArg(2) << endl;
			exit(1);
		}
	} else if (options.getArgCount() == 1) {
		// input from standard input
		status = midifile.read(cin);
		if (status == 0) {
			cerr << "Error: could not read MIDI file from standard input" << endl;
			exit(1);
		}
		status = midifile.write(options.getArg(1));
		if (status == 0) {
			cerr << "Error: could not write MIDI file " << options.getArg(1) << endl;
			exit(1);
		}
	}

	return 0;
}

///////////////////////////////////////////////////////////////////////////


//////////////////////////////
//
// checkOptions --
//

void checkOptions(Options& opts) {
	opts.define("author=b",   "Author of the program");
	opts.define("version=b",  "Version of the program");
	opts.define("example=b",  "Example useage of the program");
	opts.define("h|help=b",   "List of options for the program");
	opts.process();

	if (opts.getBoolean("author")) {
		cout << "Written by Craig Stuart Sapp, "
		     << "craig@ccrma.stanford.edu, February 2015" << endl;
		exit(0);
	} else if (opts.getBoolean("version")) {
		cout << "tobinary, version 1.0 (18 Feb 2015)\n"
		     << "compiled: " << __DATE__ << endl;
		exit(0);
	} else if (opts.getBoolean("help")) {
		usage(opts.getCommand());
		exit(0);
	} else if (opts.getBoolean("example")) {
		example();
		exit(0);
	}

	if (opts.getArgCount() > 2) {
		cerr << "Error: Too many filenames given." << endl;
		exit(1);
	}
	if (opts.getArgCount() == 0) {
		cerr << "Error: Too few filenames given." << endl;
		exit(1);
	}

}



//////////////////////////////
//
// example -- shows various command-line option calls to program.
//

void example(void) {
	cout <<
	"\n"
	<< endl;
}



//////////////////////////////
//
// usage -- how to run this program from the command-line.
//

void usage(const string& command) {
	cout <<
	"\n"
	<< endl;
}