import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.List;

import be.jeffcheasey88.peeratcode.parser.Parser;
import be.jeffcheasey88.peeratcode.parser.TokenValidator;
import be.jeffcheasey88.peeratcode.parser.java.JavaElement;
import be.jeffcheasey88.peeratcode.parser.java.JavaFile;
import be.jeffcheasey88.peeratcode.parser.java.JavaParser;

class GlobalCover {
	
	public static void main(String[] args) throws Exception {
		new GlobalCover().workspace();
	}

	void workspace() throws Exception{
		List<File> files = load(new File("workspaces.txt"));
		long validated = 0;
		long tokens = 0;
		int count = 0;
		
		boolean hasWriten = false;
		
		Parser<JavaElement> parser = new JavaParser();
		
		long time = System.currentTimeMillis();
		for(File file : files){
			if(file.getName().endsWith(".java")){
				System.out.println("try "+file.getAbsolutePath());
				BufferedReader reader = new BufferedReader(new FileReader(file));
				parser.parse(reader, new JavaFile());
				reader.close();
				
				if((!hasWriten) && TokenValidator.MAX_VALIDATE < TokenValidator.TOKENS){
					parser.build(new BufferedWriter(new FileWriter(new File("/home/ParserV2.txt"))));
					hasWriten = true;
					System.out.println("Write of file "+file.getAbsolutePath());
				}
				
				validated += TokenValidator.MAX_VALIDATE;
				tokens += TokenValidator.TOKENS;
				System.out.println(validated+" / "+tokens);
				TokenValidator.MAX_VALIDATE = 0;
				TokenValidator.TOKENS = 0;
				count++;
				if(hasWriten) break;
			}
		}
		
		time = ((System.currentTimeMillis()-time)/1000);
		
		String data = "{\"hash\": "+System.currentTimeMillis()+",\"time\": "+time+",\"percentage\": "+String.format("%.3f", ((validated/((double)tokens))*100.0)).replace(",", ".")+",\"validated\": "+validated+",\"files\": "+count+"}";
		File file = new File("/home/tmp_.txt");
		BufferedWriter writer = new BufferedWriter(new FileWriter(file));
		writer.write(data+"\n");
		writer.flush();
		writer.close();
	}
	
	private List<File> load(File config) throws Exception{
		System.out.println("loading "+config.getAbsolutePath());
		BufferedReader reader = new BufferedReader(new FileReader(config));
		List<File> workspaces = new ArrayList<>();
		String line;
		while((line = reader.readLine()) != null) workspaces.add(new File(line));
		reader.close();
		System.out.println("loaded "+workspaces.size()+" workspaces");
		List<File> result = new ArrayList<>();
		for(File workspace : workspaces){
			result.addAll(files(workspace));
			System.out.println("Loaded["+result.size()+"] "+workspace.getAbsolutePath());
		}
		return result;
	}
	
	private List<File> files(File dir){
		List<File> result = new ArrayList<>();
		if(dir.isDirectory()){
			for(File file : dir.listFiles()) result.addAll(files(file));
		}else result.add(dir);
		return result;
	}

}