//

// $Id: StyleSheetCom.java,v 1.22 2007-09-13 09:35:46 julien Exp $

// From Philippe Le Hegaret (Philippe.Le_Hegaret@sophia.inria.fr)

//

// (c) COPYRIGHT MIT and INRIA, 1997.

// Please first read the full copyright statement in file COPYRIGHT.html

package org.w3c.css.css;

import java.io.File;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLConnection;

import org.w3c.css.parser.CssFouffa;

import org.w3c.css.parser.CssSelectors;

import org.w3c.css.parser.CssStyle;

import org.w3c.css.properties.PropertiesLoader;

import org.w3c.css.properties.css1.CssProperty;

import org.w3c.css.util.ApplContext;

import org.w3c.css.util.HTTPURL;

import org.w3c.css.util.Util;

import org.w3c.www.mime.MimeType;

/**

 * @version $Revision: 1.22 $import javax.servlet.http.HttpServletResponse;

 */

public class StyleSheetCom {

    /*    ApplContext ac = new ApplContext("ja, en, zh"); */

    ApplContext ac;

    String lang;

    String documentBase = "text";

    URL htmlURL;

    String file;

    int warningLevel = 2;

    PrintWriter out;

    String defaultmedium;

    String cssversion;

    String profile;

    String contenttype;

    // @@ HACK

    static boolean showCSS = false;

    private Exception exception;

    public void htmlRequest() throws Exception {

	StyleSheet style = null;

	TagSoupStyleSheetHandler handler = new TagSoupStyleSheetHandler(htmlURL, ac);

	handler.parse(htmlURL);

	style = handler.getStyleSheet();

	if (style != null) {

	    style.setType("text/html");

	}

	if (style != null) {

	    style.findConflicts(ac);

	    StyleSheetGenerator output =

		    new StyleSheetGenerator(ac, file,

						 style,

						 documentBase,

						 warningLevel);

		output.print(out);

	} else {

	    System.err.println("No style sheet found in your HTML document");

	}

	ac.setInput("text/xml");

    }

    public void xmlRequest() throws Exception {

	StyleSheet style = null;

	XMLStyleSheetHandler handler = new XMLStyleSheetHandler(htmlURL, ac);

	handler.parse(htmlURL);

	style = handler.getStyleSheet();

	if (style != null) {

	    style.setType("text/xml");

	    style.findConflicts(ac);

	} else {

	    System.err.println("No style sheet found in your HTML document");

	}

	StyleSheetGenerator output =

	    new StyleSheetGenerator(ac, file,

					 style,

					 documentBase,

					 warningLevel);

	output.print(out);

	ac.setInput("text/xml");

    }

    public void cssRequest(CssSelectors selector, String defaultmedium) {

	CssParser parser = new StyleSheetParser();

	ac.setMedium(defaultmedium);

	/*

	  if (defaultmedium != null) {

	  parser.setDefaultMedium(defaultmedium);

	  }

	*/

	parser.parseURL(ac, htmlURL, null, null, null,

			StyleSheetOrigin.AUTHOR);

	parser.getStyleSheet().findConflicts(ac);

	if (selector != null) {

	    System.err.println("<color value=\""

			       + parser.getStyleSheet().CascadingOrder(new org.w3c.css.properties.css1.CssColor(),

								       parser.getStyleSheet(),

								       selector));

	    CssStyle s = parser.getStyleSheet().getStyle(selector);

	    CssProperty _sl =

		((org.w3c.css.properties.css1.Css1Style) s).getColor();

	    s.print(new org.w3c.css.parser.CssPrinterStyle () {

		    public void print(CssProperty property) {

			System.out.print(property.getPropertyName());

			System.out.print(": ");

			System.out.print(property.toString());

			System.out.println(';');

		    }

		});

	} else {

	    StyleSheetGenerator output =

		new StyleSheetGenerator(ac, file,

					 parser.getStyleSheet(),

					 documentBase,

					 warningLevel);

	    output.print(out);

	}

    }

    public static void main(String args[])

	throws IOException, MalformedURLException {

	int i = 0;

	CssSelectors selector = null;

	StyleSheetCom style = new StyleSheetCom();

        // Fix for http://www.w3.org/Bugs/Public/show_bug.cgi?id=292

        style.contenttype = "text";

	try {

	    style.file = args[i];

	    while (i < args.length && args[i].charAt(0) == '-') {

		String argument = args[i].substring(1).toLowerCase();

		if (argument.equals("e")) {

		    style.warningLevel = -1;

		} else if (argument.equals("s")) {

		    StyleSheetCom.showCSS = true;

		} else if (argument.equals("c")) {

		    selector = createSelectors(args[++i]);

		} else if (argument.equals("format")) {

		    StyleSheetGenerator.

			printAvailableFormat(new PrintWriter(System.err));

		} else if (argument.startsWith("@")) {

		    style.defaultmedium = argument;

		} else if (argument.equals("css1") ||

                          argument.equals("css2") ||

                          argument.equals("css21") ||

                          argument.equals("css3") ||

			   argument.equals("svg") ||

			   argument.equals("svgbasic") ||

			   argument.equals("svgtiny")) {

		    style.cssversion = argument;

		} else if (argument.equals("mobile") || argument.equals("tv")) {

		    style.profile = argument;

	    } else if (argument.equals("atsc")) {

			style.profile = "atsc-tv";

		} else {

		    int idx = argument.lastIndexOf('.');

		    if(idx >= 0 && idx < argument.length() - 1) {

			style.lang = argument.substring(idx+1);

		    } else {

			style.lang = "en";

		    }

		    style.documentBase = argument;

		}

		i++;

	    }

	    style.ac = new ApplContext(style.lang);

	    if (style.cssversion != null)

		style.ac.setCssVersion(style.cssversion);

	    if (style.profile != null) {

		style.ac.setProfile(style.profile);

		style.ac.setCssVersion(PropertiesLoader.config.getProperty("defaultProfile"));

	    }

	    if (style.cssversion == null && style.ac.getCssVersion() == null) {

		style.ac.setCssVersion(PropertiesLoader.config.getProperty("defaultProfile"));

	    }

	} catch (Exception e) {

	    /* System.out.println( "Usage: validator " +

	       StyleSheetCom.class.getName() +

				// " [-<your format>] [-fromxml] <url>");

				" [-s||-e||-<your format>] [<url>|<file>]*");

	    */

	    System.out.println( "Usage: validator " +

				" [ -s || -e || -<your format> || -cssversion/profile ] [<url>|<file>]*");

	    System.out.println( "\t-s\tShow the validated style sheet");

	    System.out.println( "\t-e\tDo NOT show warnings");

	    System.out.println( "\tuse the option -format to see"

				+ " available format.");

	    System.out.println( "\tCSS version\t-css1 || -css2 || -css21 || -css3 || -svg || -svgbasic || -svgtiny");

	    System.out.println( "\tProfile\t\t -atsc || -mobile || tv");

	    //System.out.println( "\tCSS version\t-css1 || -css2");

	    //	    System.out.println( "\tProfile\t\t-svg || -atsc || -mobile");

	    System.exit(1);

	}

	String encoding = style.ac.getMsg().getString("output-encoding-name");

	if(encoding != null) style.out = new PrintWriter(new OutputStreamWriter(System.out, encoding));

	else style.out = new PrintWriter(new OutputStreamWriter(System.out));

	while (i < args.length) {

	    try {

		String doc = args[i];

		try {

		    style.htmlURL = new URL(doc);

		    style.file = style.htmlURL.toString();

		} catch (MalformedURLException ex) {

		    File f = new File(args[i]);

		    style.file = f.getAbsolutePath();

		    style.htmlURL = new URL("file", null, -1, style.file);

		}

		i++;

		String urlLower = style.htmlURL.toString().toLowerCase();

		if (urlLower.endsWith(".css")) {

		    style.cssRequest(selector, style.defaultmedium);		    

		} else if (urlLower.endsWith(".html")

			   || urlLower.endsWith(".shtml")

			   || urlLower.endsWith("/")) {		    

		    style.htmlRequest();

		} else if (urlLower.endsWith(".xml")) {

		    style.xmlRequest();

		} else {

		    URLConnection urlC = HTTPURL.getConnection(style.htmlURL, null);

		    if (urlC.getContentType() != null) {

			MimeType mt = null;

			try {

			    mt = new MimeType(urlC.getContentType());

			} catch (Exception ex) {};

			if (MimeType.TEXT_HTML.match(mt) == MimeType.MATCH_SPECIFIC_SUBTYPE) {

			    style.htmlRequest();

			} else if ((MimeType.TEXT_XML.match(mt) == MimeType.MATCH_SPECIFIC_SUBTYPE) ||

				   (MimeType.APPLICATION_XHTML_XML.match(mt) == MimeType.MATCH_SPECIFIC_SUBTYPE)) {

			    style.xmlRequest();

			} else if (MimeType.TEXT_CSS.match(mt) == MimeType.MATCH_SPECIFIC_SUBTYPE) {

			    style.cssRequest(selector, style.defaultmedium);

			}

		    } else {

			style.cssRequest(selector, style.defaultmedium);

		    }

		    try {

			urlC.getInputStream().close();

		    } catch (IOException e) {

			e.printStackTrace();

		    }

		}

	    } catch (org.xml.sax.SAXException e) {

		if (e.getException() != null) {

		    e.getException().printStackTrace();

		}

	    } catch (Exception e) {

		e.printStackTrace();

	    }

	}

    }

    private static CssSelectors createSelectors(String s) {

	try {

	    CssFouffa fouffa =

		new CssFouffa(null, new java.io.StringBufferInputStream(s),

			      new URL("file://nofile"));

	    return fouffa.parseSelector();

	} catch (Exception e) {

	    System.err.println(e);

	    return null;

	}

    }

}