package oving6;

import java.io.BufferedReader;
import java.io.EOFException;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.MalformedURLException;

public class ColonyIO {
	
	public static Colony readColony(File file) throws IOException {
		return ColonyIO.readColony(new BufferedReader(new FileReader(file)));
	}
	
	public static Colony readColony(URI url) throws IOException {
		InputStream is = null;
		BufferedReader br = null;
		
		try {
			is = url.toURL().openStream();
			br = new BufferedReader(new InputStreamReader(is));
		} catch (MalformedURLException murle) {
			System.err.println(murle);
		} catch (IOException ioe) {
			System.err.println(ioe);
		}
		return ColonyIO.readColony(br);		
	}
	
	public static Colony readColony(BufferedReader br) throws IOException {
		
		if (!br.ready()) throw new IOException("Error: Buffer not ready.");
		if (br == null) throw new IOException("Error: Buffer is empty.") ;
	
		String currentLine = br.readLine();
		String[] temp = currentLine.split("x");
		int width = Integer.parseInt(temp[0]);
		int height = Integer.parseInt(temp[1]);
		Colony colony = new BooleanArrayColony(height, width);
		int counter = 0;
	
		try {
			while (counter < colony.getHeight()) {
				
				currentLine = br.readLine();
				
				if (currentLine == null) {
					throw new EOFException("BUHU!");
				} else if (currentLine.startsWith("#")) {
					continue;
				}
				
				for (int i = 0; i < width && i < currentLine.length(); i++) {
					colony.setCell(counter, i,currentLine.charAt(i) == '*');
				}
				counter++;
			} 
			return colony;
		} finally {
			if(br != null) br.close();
		}
				
	}
	
	private static boolean isValid(String s) {
		for (int i = 0;i < s.length();i++) {
			char c = s.charAt(i);
			if (Character.isWhitespace(c) || c == '.' || c == '*') {
				continue;
			} else {
				return false;
			}
		}
		return true;
	}
	
}