#include <iostream>
#include <string>
#include <cstring>
#include <sstream>
#include <dirent.h>
#include <fstream>
#include "genre.h"
#include <boost/progress.hpp>

using namespace std;

main()
{
	struct dirent *direct;
	DIR *flacdir = opendir(".");
	if(flacdir != NULL) { 
	while((direct = readdir(flacdir)) != NULL) {
		if(strstr(direct->d_name, ".flac")) {
			string file = (direct->d_name);

//start tagcode
	string mp3name;
	string album;
	string artist;
	string title;
	string genre;
	string date;
	string preset;
	int preIdent=3;
	int ident=1;  //this variable sets the filname format in readtag() ie [ album - artist - track - title.mp3 ] etc.

	//Start of code to read tags from the flac file.
	int trcknbr; //Track number to be converted to int from string using sstream.
	string tracknumber;
	string systrMeta = "metaflac --export-tags-to=metadata \"" + file + "\"";
	system(systrMeta.c_str());
	fstream meta;
 	meta.open("metadata", ios::in);
	if (meta.is_open()) { 
			while(! meta.eof() ) {
			string testAlb = "album=";  string testAlbUc = "ALBUM="; string testAlbUc1 = "Album=";
			string testArt = "artist="; string testArtUc = "ARTIST="; string testArtUc1 = "Artist=";
			string testTitl = "title="; string testTitlUc = "TITLE="; string testTitlUc1 = "Title=";
			string testGen = "genre=";  string testGenUc = "GENRE="; string testGenUc1 = "Genre=";
			string testDate = "date=";  string testDateUc = "DATE="; string testDateUc1 = "Date=";
			string testTrack = "tracknumber=";  string testTrackUc = "TRACKNUMBER="; 
			string testTrackUc1 = "TrackNumber="; string testTrackUc2 = "Tracknumber=";
			string line; // String to hold lines in metadata.
			getline(meta, line);
			static int i;
			for(i=0; i<line.length(); i++)
			if(strchr("\\/<>*\?\"|:", line[i])) line[i]=',';
			if(!(line.find(testAlb, 0)==string::npos) || !(line.find(testAlbUc, 0)==string::npos) || 
				!(line.find(testAlbUc1, 0)==string::npos)) {
				album = line.substr (6,(line.length()-6));  
				} 
			else if(!(line.find(testArt, 0)==string::npos) || !(line.find(testArtUc, 0)==string::npos) || 
				!(line.find(testArtUc1, 0)==string::npos)) { 
				artist = line.substr (7,(line.length()-7)); 
				}	
			else if(!(line.find(testTitl, 0)==string::npos) || !(line.find(testTitlUc, 0)==string::npos) || 
				!(line.find(testTitlUc1, 0)==string::npos)) { 
				title = line.substr (6,(line.length()-6));  
				}	
			else if(!(line.find(testGen, 0)==string::npos) || !(line.find(testGenUc, 0)==string::npos) || 
				!(line.find(testGenUc1, 0)==string::npos)) { 
				genre = line.substr (6,(line.length()-6)); 
				}
			else if(!(line.find(testDate, 0)==string::npos) || !(line.find(testDateUc, 0)==string::npos) || 
				!(line.find(testDateUc1, 0)==string::npos)) { 
				date = line.substr (5,(line.length()-5));  
				}
			else if(!(line.find(testTrack, 0)==string::npos) || !(line.find(testTrackUc, 0)==string::npos) 
				|| !(line.find(testTrackUc1, 0)==string::npos) || !(line.find(testTrackUc2, 0)==string::npos)) { 
				tracknumber = line.substr (12,(line.length()-12));  
				}
			else continue;
			}
		}
	meta.close();
	unlink("metadata");
	stringstream(tracknumber) >> trcknbr;
	stringstream strm;
	strm << trcknbr;
	string str(strm.str());
	string track;
	string wavStr = file.substr(0, (file.length()-5)) + ".wav";
	string noTagStr = file.substr(0, (file.length()-5)) + ".mp3";
	if(trcknbr <= 9) track = "0" + str;
	else track = str;
	if(ident==1) {
		 if(!title.empty() && !tracknumber.empty()) mp3name = track + " - " + title + ".mp3";
		else mp3name = noTagStr;
		}
	else if(ident==2) {
		 if(!title.empty() && !artist.empty()) mp3name = artist + " - " + title + ".mp3";
		else mp3name = noTagStr;
		}
	else if(ident==3) {
		 if(!title.empty() && !tracknumber.empty() && !album.empty() && !artist.empty())
		 mp3name = artist + " - " + album + " - " + track + " - " + title + ".mp3";
		else mp3name = noTagStr;
		}
	else mp3name = noTagStr;
	//End of code reading tags from flac file.
	
	//Make lame string
	string genreStr;
	if(testgenre(genre.c_str())==0) { genreStr=""; cout << "Genre Tag incorrect or not present..." << endl; }
	else genreStr = genre;
	if(preIdent==1) preset = "lame --preset medium";
	else if(preIdent==2) preset = "lame --preset standard";
	else if(preIdent==3) preset = "lame --preset insane";
	else preset = "lame --preset extreme";
	string lameSysStr = preset + " \"" + wavStr +"\" --tt \"" + title + "\" --ta \"" + artist + "\" --tl \"" + album + "\" --ty \"" + date + "\" --tc \"Uberstandard - ubershare.org\"" + " --tn \"" + track + "\" --tg \"" + genreStr + "\" --add-id3v2 \"" + mp3name + "\"";  
	cout << "\n****************************************************" << endl;
	cout << "File: " << file << endl;
	cout << "Artist:\t\t " << artist << endl;
	cout << "Album:\t\t " << album << endl;
	cout << "Title:\t\t " << title << endl;
	cout << "Genre:\t\t " << genre << endl;
	cout << "Date:\t\t " << date << endl;
	cout << "Tracknumber:\t " << tracknumber << endl;
	cout << "Output mp3 name: " << mp3name << endl;
	//cout << "Filename to use if tags are not present:\n";
	//cout << lameSysStr << endl;
	//cout << noTagStr << endl;
	cout << "****************************************************\n" << endl;
//finish tagcode
	string systr = "flac -ds \"" + file + "\"";
	system(systr.c_str());
	system(lameSysStr.c_str());
	unlink(wavStr.c_str());
			}
		}
	}
	cout << "End of directory listing." << endl;
	closedir(flacdir);
	return 0;
}