/**

  * SysEx to SMF convertor

  * Copyright © 2020 František Kučera (Frantovo.cz, GlobalCode.info)

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, version 3 of the License.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. If not, see <http://www.gnu.org/licenses/>.

  */

 #include <iostream>

 #include <sstream>

 #include <smf.h>

 /**

  * Translates System Exclusive (SysEx) message (binary not HEX) from standard input to a Standard MIDI file (SMF).

  * The file path must be passed as a CLI argument.

  * 

  * Usage examples:

  *     cat test.syx | ./sysex2smf test.mid

  * 

  * Dependencies:

  *     libsmf (in Debian-based distributions do: apt install libsmf-dev)

  * 

  * @param argc

  * @param argv

  * @return 

  */

 int main(int argc, char**argv) {

 	int exitCode = 0;

 	if (argc == 2) {

 		smf_t* smf = smf_new();

 		smf_track_t* track = smf_track_new();

 		smf_add_track(smf, track);

 		std::stringstream data;

 		for (char ch; std::cin.read(&ch, 1).good();) {

 			data.put(ch);

 		}

 		// TODO: review the (void*) – it works but…

 		smf_event_t* event = smf_event_new_from_pointer((void*) data.str().c_str(), data.tellp());

 		smf_track_add_event_pulses(track, event, 0);

 		// TODO: check whether file exists?

 		int res = smf_save(smf, argv[1]);

 		if (res) {

 			std::cerr << "Error: Unable to save MIDI file: " << argv[1] << " Error code: " << res << std::endl;

 			exitCode = 1;

 		}

 		smf_delete(smf);

 	} else {

 		std::cerr << "Usage: " << argv[0] << " 'output-file.mid'" << std::endl;

 		exitCode = 1;

 	}

 	return exitCode;

 }