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/* Copyright (C) 2008 Jason A. Donenfeld <Jason@zx2c4.com> */

/* Use at your own risk. */

#include <iostream>
#include <mpegfile.h>
#include <tstring.h>
#include <tag.h>
#include <id3v2tag.h>
#include <textidentificationframe.h>

using namespace TagLib;
using namespace std;

int main(int argc, char *argv[])
{
    for(int i = 1; i < argc; i++) {
	MPEG::File *file = new MPEG::File(argv[i]);
	if(argc > 2)
	    cout << "--File " << i << " of " << argc - 1 << "--" << endl;
	if(!file->isValid()) {
	    cout << "[!] Could not open " << argv[i] << "." << endl;
	    continue;
	}
	Tag *tag = file->tag();
	if(tag->isEmpty()) {
	    cout << "[!] No tags in " << argv[i] << "." << endl;
	    continue;
	}
	cout << "[*] Reading " << argv[i] << ":" << endl;
	String artist = tag->artist().stripWhiteSpace();
	String album = tag->album().stripWhiteSpace();
	String title = tag->title().stripWhiteSpace();
	TagLib::uint track = tag->track();
	TagLib::uint year = tag->year();
	String genre = tag->genre().stripWhiteSpace();
	// COMMENTS ARE NOT SAVED. I HATE ID3 COMMENTS, SO THEY'RE STRIPPED OUT
	String disc;
	String bpm;
	String composer;
	String albumArtist;
	String compilation;
	if(file->ID3v2Tag()) {
	    if(!file->ID3v2Tag()->frameListMap()["TPOS"].isEmpty())
		disc = file->ID3v2Tag()->frameListMap()["TPOS"].front()->toString().stripWhiteSpace();
	    if(!file->ID3v2Tag()->frameListMap()["TBPM"].isEmpty())
		bpm = file->ID3v2Tag()->frameListMap()["TBPM"].front()->toString().stripWhiteSpace();
	    if(!file->ID3v2Tag()->frameListMap()["TCOM"].isEmpty())
		composer = file->ID3v2Tag()->frameListMap()["TCOM"].front()->toString().stripWhiteSpace();
	    if(!file->ID3v2Tag()->frameListMap()["TPE2"].isEmpty())
		albumArtist = file->ID3v2Tag()->frameListMap()["TPE2"].front()->toString().stripWhiteSpace();
	    if(!file->ID3v2Tag()->frameListMap()["TCMP"].isEmpty())
		compilation = file->ID3v2Tag()->frameListMap()["TCMP"].front()->toString().stripWhiteSpace();
	}
	cout
	    << "\tArtist: " << artist << endl
	    << "\tComposer: " << composer << endl
	    << "\tAlbum: " << album << endl 
	    << "\tAlbum Artist: " << albumArtist << endl
	    << "\tTitle: " << title << endl
	    << "\tTrack: " << track << endl
	    << "\tDisc: " << disc << endl
	    << "\tCompilation: " << compilation << endl
	    << "\tYear: " << year << endl
	    << "\tGenre: " << genre << endl;
	cout << "[*] Stripping tags and saving." << endl;
	file->strip(MPEG::File::AllTags);
	file->save();
	delete file;
	cout << "[*] Re-opening and re-writing new tags." << endl;
	file = new MPEG::File(argv[i]);
	tag = file->tag();
	tag->setArtist(artist);
	tag->setAlbum(album);
	tag->setTitle(title);
	tag->setTrack(track);
	tag->setYear(year);
	tag->setGenre(genre);
	::ID3v2::TextIdentificationFrame *frame;
	if(!disc.isEmpty()) {
	    frame = new ::ID3v2::TextIdentificationFrame("TPOS", ::ID3v2::FrameFactory::instance()->defaultTextEncoding());
	    frame->setText(disc);
	    file->ID3v2Tag()->addFrame(frame);
	}
	if(!bpm.isEmpty()) {
	    frame = new ::ID3v2::TextIdentificationFrame("TBPM", ::ID3v2::FrameFactory::instance()->defaultTextEncoding());
	    frame->setText(bpm);
	    file->ID3v2Tag()->addFrame(frame);
	}
	if(!composer.isEmpty()) {
	    frame = new ::ID3v2::TextIdentificationFrame("TCOM", ::ID3v2::FrameFactory::instance()->defaultTextEncoding());
	    frame->setText(composer);
	    file->ID3v2Tag()->addFrame(frame);
	}
	if(!albumArtist.isEmpty()) {
	    frame = new ::ID3v2::TextIdentificationFrame("TPE2", ::ID3v2::FrameFactory::instance()->defaultTextEncoding());
	    frame->setText(albumArtist);
	    file->ID3v2Tag()->addFrame(frame);
	}
	if(!compilation.isEmpty()) {
	    frame = new ::ID3v2::TextIdentificationFrame("TCMP", ::ID3v2::FrameFactory::instance()->defaultTextEncoding());
	    frame->setText(compilation);
	    file->ID3v2Tag()->addFrame(frame);
	}
	cout << "[*] Saving file." << endl;
	file->save();
	delete file;
	cout << "[*] Success." << endl;
    }
}