//
// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu>
// Creation Date: Mon Jul 26 13:10:22 PDT 2010
// Last Modified: Mon Feb  9 20:34:40 PST 2015 Updated for C++11.
// Filename:      tools/miditime.cpp
// URL:           https://github.com/craigsapp/midifile/blob/master/tools/miditime.cpp
// Syntax:        C++11
// vim:           ts=3
//
// Description:   Displays the absolute tick time and absolute time
//                in seconds for MIDI events in a MIDI file, along with
//                the track information.
//

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

#include <cstdlib>
#include <iostream>

using namespace std;
using namespace smf;


void   checkOptions        (Options& opts);
void   example             (void);
void   usage               (const char* command);
void   processMidiFile     (MidiFile& midifile);

// User interface variables:
double starttime = 0.0;    // used with -s option
double endtime   = 0.0;    // used with -e option
int    onsetQ    = 0;      // used with -o option


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

int main(int argc, char** argv) {
	int       status;
	MidiFile  inputfile;
	Options   options(argc, argv);

	checkOptions(options);

	status = inputfile.read(options.getArg(1));
	if (status == 0) {
		cout << "Syntax error in file: " << options.getArg(1) << "\n";
	}

	processMidiFile(inputfile);
	return 0;
}

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


//////////////////////////////
//
// processMidiFile -- extract track and timing information from the MIDI file.
//

void processMidiFile(MidiFile& midifile) {
	midifile.absoluteTicks();
	midifile.joinTracks();
	int eventcount = midifile.getEventCount(0);
	MidiEvent *ptr;
	for (int i=0; i<eventcount; i++) {
		ptr = &(midifile[0][i]);
		int track       = ptr->track;
		int timeinticks = ptr->tick;
		double timeinsecs  = midifile.getTimeInSeconds(0, i);
		int attack = ((*ptr)[0] & 0xf0) == 0x90;
		if (onsetQ && !attack) {
			continue;
		}
		if (onsetQ && attack) {
			if ((*ptr)[2] == 0) {
				continue;
			}
		}

		cout << timeinticks << "\t";
		cout << timeinsecs << "\t";
		cout << track << "\t";
		cout << i << "\t";
		for (int j=0; j<(int)ptr->size(); j++) {
			if (j == 0) {
				cout << "0x" << hex << (int)(*ptr)[j] << dec << " ";
			} else {
				cout << (int)(*ptr)[j] << " ";
			}
		}
		cout << endl;
	}
}



//////////////////////////////
//
// checkOptions -- handle command-line options.
//

void checkOptions(Options& opts) {

	opts.define("author=b");
	opts.define("version=b");
	opts.define("example=b");
	opts.define("help=b");
	opts.define("o|on|onset=b");
	opts.process();

	if (opts.getBoolean("author")) {
		cout << "Written by Craig Stuart Sapp, "
			  << "craig@ccrma.stanford.edu, July 2010" << endl;
		exit(0);
	}
	if (opts.getBoolean("version")) {
		cout << "midiextract version 1.0" << endl;
		cout << "compiled: " << __DATE__ << endl;
	}
	if (opts.getBoolean("help")) {
		usage(opts.getCommand().c_str());
		exit(0);
	}
	if (opts.getBoolean("example")) {
		example();
		exit(0);
	}

	onsetQ = opts.getBoolean("onset");
}



//////////////////////////////
//
// example -- gives example calls to the midiexcerpt program.
//

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



//////////////////////////////
//
// usage -- how to run the midiexcerpt program on the command line.
//

void usage(const char* command) {
	cout <<
	"                                                                         \n"
	<< endl;
}