package com.itmill.toolkit;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
 * Class for controlling web browser.
 * 
 * @author Sami Ekblad
 * 
 */
public class BrowserControl {

	/**
	 * Open browser on specified URL.
	 * 
	 * @param url
	 */
	public static void openBrowser(String url) {

		Runtime runtime = Runtime.getRuntime();
		Process proc = null;
		boolean started = false;

		String os = System.getProperty("os.name", "windows").toLowerCase();

		// Linux
		if (os.indexOf("linux") >= 0) {

			// Try x-www-browser
			if (!started) {
				try {
					proc = runtime.exec("x-www-browser " + url);
					started = true;
				} catch (IOException e) {
				}
			}

			// Try firefox
			if (!started) {
				try {
					proc = runtime.exec("firefox " + url);
					started = true;
				} catch (IOException e) {
				}
			}

			// Try mozilla
			if (!started) {
				try {
					proc = runtime.exec("mozilla " + url);
					started = true;
				} catch (IOException e) {
				}
			}

			// Try konqueror
			if (!started) {
				try {
					proc = runtime.exec("konqueror " + url);
					started = true;
				} catch (IOException e) {
				}
			}
		}

		// OS X
		if (os.indexOf("mac os x") >= 0) {

			// Try open
			if (!started) {
				try {
					proc = runtime.exec("open " + url);
					started = true;
				} catch (IOException e) {
				}
			}
		}

		// Try cmd /start command on windows
		if (os.indexOf("win") >= 0) {
			if (!started) {
				try {
					proc = runtime.exec("cmd /c start " + url);
					started = true;
				} catch (IOException e) {
				}
			}
		}

		// put a BufferedReader on the ls output
		if (started) {
			InputStream inputstream = proc.getInputStream();
			InputStreamReader inputstreamreader = new InputStreamReader(
					inputstream);
			BufferedReader bufferedreader = new BufferedReader(
					inputstreamreader);

			// read/write the output
			String line;
			try {
				while ((line = bufferedreader.readLine()) != null) {
					System.out.println(line);
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		} else {
			System.out.println("Failed to open browser. Please go to " + url);

		}
	}

}