/*

 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package sun.font;

import java.awt.*;

import java.io.File;

import java.security.AccessController;

import java.security.PrivilegedAction;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Hashtable;

import java.util.Locale;

import java.util.TreeMap;

import java.util.Vector;

import javax.swing.plaf.FontUIResource;

import sun.awt.FontConfiguration;

import sun.awt.HeadlessToolkit;

import sun.awt.util.ThreadGroupUtils;

import sun.lwawt.macosx.*;

public final class CFontManager extends SunFontManager {

    private FontConfigManager fcManager = null;

    private static Hashtable<String, Font2D> genericFonts = new Hashtable<String, Font2D>();

    @Override

    protected FontConfiguration createFontConfiguration() {

        FontConfiguration fc = new CFontConfiguration(this);

        fc.init();

        return fc;

    }

    @Override

    public FontConfiguration createFontConfiguration(boolean preferLocaleFonts,

                                                     boolean preferPropFonts)

    {

        return new CFontConfiguration(this, preferLocaleFonts, preferPropFonts);

    }

    /*

     * Returns an array of two strings. The first element is the

     * name of the font. The second element is the file name.

     */

    @Override

    protected String[] getDefaultPlatformFont() {

        return new String[]{"Lucida Grande",

                            "/System/Library/Fonts/LucidaGrande.ttc"};

    }

    // This is a way to register any kind of Font2D, not just files and composites.

    public static Font2D[] getGenericFonts() {

        return genericFonts.values().toArray(new Font2D[0]);

    }

    public Font2D registerGenericFont(Font2D f)

    {

        return registerGenericFont(f, false);

    }

    public Font2D registerGenericFont(Font2D f, boolean logicalFont)

    {

        int rank = 4;

        String fontName = f.fullName;

        String familyName = f.familyName;

        if (fontName == null || "".equals(fontName)) {

            return null;

        }

        // logical fonts always need to be added to the family

        // plus they never need to be added to the generic font list

        // or the fullNameToFont table since they are covers for

        // already existing fonts in this list

        if (logicalFont || !genericFonts.containsKey(fontName)) {

            if (FontUtilities.debugFonts()) {

                FontUtilities.getLogger().info("Add to Family "+familyName +

                    ", Font " + fontName + " rank="+rank);

            }

            FontFamily family = FontFamily.getFamily(familyName);

            if (family == null) {

                family = new FontFamily(familyName, false, rank);

                family.setFont(f, f.style);

            } else if (family.getRank() >= rank) {

                family.setFont(f, f.style);

            }

            if (!logicalFont)

            {

                genericFonts.put(fontName, f);

                fullNameToFont.put(fontName.toLowerCase(Locale.ENGLISH), f);

            }

            return f;

        } else {

            return genericFonts.get(fontName);

        }

    }

    @Override

    public Font2D[] getRegisteredFonts() {

        Font2D[] regFonts = super.getRegisteredFonts();

        // Add in the Mac OS X native fonts

        Font2D[] genericFonts = getGenericFonts();

        Font2D[] allFonts = new Font2D[regFonts.length+genericFonts.length];

        System.arraycopy(regFonts, 0, allFonts, 0, regFonts.length);

        System.arraycopy(genericFonts, 0, allFonts, regFonts.length, genericFonts.length);

        return allFonts;

    }

    @Override

    protected void addNativeFontFamilyNames(TreeMap<String, String> familyNames, Locale requestedLocale) {

        Font2D[] genericfonts = getGenericFonts();

        for (int i=0; i < genericfonts.length; i++) {

            if (!(genericfonts[i] instanceof NativeFont)) {

                String name = genericfonts[i].getFamilyName(requestedLocale);

                familyNames.put(name.toLowerCase(requestedLocale), name);

            }

        }

    }

    @Override

    public Font2D createFont2D(File fontFile, int fontFormat, boolean isCopy, CreatedFontTracker tracker) throws FontFormatException {

    String fontFilePath = fontFile.getPath();

    Font2D font2D = null;

    final File fFile = fontFile;

    final CreatedFontTracker _tracker = tracker;

    try {

        switch (fontFormat) {

            case Font.TRUETYPE_FONT:

                        font2D = new TrueTypeFont(fontFilePath, null, 0, true);

                break;

            case Font.TYPE1_FONT:

                        font2D = new Type1Font(fontFilePath, null, isCopy);

                break;

            default:

                throw new FontFormatException("Unrecognised Font Format");

        }

    } catch (FontFormatException e) {

        if (isCopy) {

            java.security.AccessController.doPrivileged(

                    new java.security.PrivilegedAction<Object>() {

                        public Object run() {

                            if (_tracker != null) {

                                _tracker.subBytes((int)fFile.length());

                            }

                            fFile.delete();

                            return null;

                        }

                    });

        }

        throw(e);

    }

    if (isCopy) {

        FileFont.setFileToRemove(font2D, fontFile, tracker);

        synchronized (FontManager.class) {

            if (tmpFontFiles == null) {

                tmpFontFiles = new Vector<File>();

            }

            tmpFontFiles.add(fontFile);

            if (fileCloser == null) {

                final Runnable fileCloserRunnable = new Runnable() {

                    public void run() {

                        java.security.AccessController.doPrivileged(

                                new java.security.PrivilegedAction<Object>() {

                                    public Object run() {

                                        for (int i=0;i<CHANNELPOOLSIZE;i++) {

                                            if (fontFileCache[i] != null) {

                                                try {

                                                    fontFileCache[i].close();

                                                } catch (Exception e) {}

                                            }

                                        }

                                        if (tmpFontFiles != null) {

                                            File[] files = new File[tmpFontFiles.size()];

                                            files = tmpFontFiles.toArray(files);

                                            for (int f=0; f<files.length;f++) {

                                                try {

                                                    files[f].delete();

                                                } catch (Exception e) {}

                                            }

                                        }

                                        return null;

                                    }

                                });

                    }

                };

                AccessController.doPrivileged(

                        (PrivilegedAction<Void>) () -> {

                            /* The thread must be a member of a thread group

                             * which will not get GCed before VM exit.

                             * Make its parent the top-level thread group.

                             */

                            ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup();

                            fileCloser = new Thread(rootTG, fileCloserRunnable);

                            fileCloser.setContextClassLoader(null);

                            Runtime.getRuntime().addShutdownHook(fileCloser);

                            return null;

                        }

                );

                }

            }

        }

        return font2D;

    }

    /*

    public synchronized FontConfigManager getFontConfigManager() {

        if (fcManager  == null) {

            fcManager = new FontConfigManager();

        }

        return fcManager;

    }

    */

    protected void registerFontsInDir(String dirName, boolean useJavaRasterizer, int fontRank, boolean defer, boolean resolveSymLinks) {

        loadNativeDirFonts(dirName);

        super.registerFontsInDir(dirName, useJavaRasterizer, fontRank, defer, resolveSymLinks);

    }

    private native void loadNativeDirFonts(String dirName);

    private native void loadNativeFonts();

    void registerFont(String fontName, String fontFamilyName) {

        final CFont font = new CFont(fontName, fontFamilyName);

        registerGenericFont(font);

        if ((font.getStyle() & Font.ITALIC) == 0) {

            registerGenericFont(font.createItalicVariant(), true);

        }

    }

    Object waitForFontsToBeLoaded  = new Object();

    public void loadFonts()

    {

        synchronized(waitForFontsToBeLoaded)

        {

            super.loadFonts();

            java.security.AccessController.doPrivileged(

                new java.security.PrivilegedAction<Object>() {

                    public Object run() {

                        loadNativeFonts();

                        return null;

                    }

                }

            );

            String defaultFont = "Lucida Grande";

            String defaultFallback = "Lucida Sans";

            setupLogicalFonts("Dialog", defaultFont, defaultFallback);

            setupLogicalFonts("Serif", "Times", "Lucida Bright");

            setupLogicalFonts("SansSerif", defaultFont, defaultFallback);

            setupLogicalFonts("Monospaced", "Menlo", "Lucida Sans Typewriter");

            setupLogicalFonts("DialogInput", defaultFont, defaultFallback);

        }

    }

    protected void setupLogicalFonts(String logicalName, String realName, String fallbackName) {

        FontFamily realFamily = getFontFamilyWithExtraTry(logicalName, realName, fallbackName);

        cloneStyledFont(realFamily, logicalName, Font.PLAIN);

        cloneStyledFont(realFamily, logicalName, Font.BOLD);

        cloneStyledFont(realFamily, logicalName, Font.ITALIC);

        cloneStyledFont(realFamily, logicalName, Font.BOLD | Font.ITALIC);

    }

    protected FontFamily getFontFamilyWithExtraTry(String logicalName, String realName, String fallbackName){

        FontFamily family = getFontFamily(realName, fallbackName);

        if (family != null) return family;

        // at this point, we recognize that we probably needed a fallback font

        super.loadFonts();

        family = getFontFamily(realName, fallbackName);

        if (family != null) return family;

        System.err.println("Warning: the fonts \"" + realName + "\" and \"" + fallbackName + "\" are not available for the Java logical font \"" + logicalName + "\", which may have unexpected appearance or behavior. Re-enable the \""+ realName +"\" font to remove this warning.");

        return null;

    }

    protected FontFamily getFontFamily(String realName, String fallbackName){

        FontFamily family = FontFamily.getFamily(realName);

        if (family != null) return family;

        family = FontFamily.getFamily(fallbackName);

        if (family != null){

            System.err.println("Warning: the font \"" + realName + "\" is not available, so \"" + fallbackName + "\" has been substituted, but may have unexpected appearance or behavor. Re-enable the \""+ realName +"\" font to remove this warning.");

            return family;

        }

        return null;

    }

    protected boolean cloneStyledFont(FontFamily realFamily, String logicalFamilyName, int style) {

        if (realFamily == null) return false;

        Font2D realFont = realFamily.getFontWithExactStyleMatch(style);

        if (realFont == null || !(realFont instanceof CFont)) return false;

        CFont newFont = new CFont((CFont)realFont, logicalFamilyName);

        registerGenericFont(newFont, true);

        return true;

    }

    @Override

    public String getFontPath(boolean noType1Fonts) {

        // In the case of the Cocoa toolkit, since we go through NSFont, we don't need to register /Library/Fonts

        Toolkit tk = Toolkit.getDefaultToolkit();

        if (tk instanceof HeadlessToolkit) {

            tk = ((HeadlessToolkit)tk).getUnderlyingToolkit();

        }

        if (tk instanceof LWCToolkit) {

            return "";

        }

        // X11 case

        return "/Library/Fonts";

    }

    @Override

    protected FontUIResource getFontConfigFUIR(

            String family, int style, int size)

    {

        String mappedName = FontUtilities.mapFcName(family);

        if (mappedName == null) {

            mappedName = "sansserif";

        }

        return new FontUIResource(mappedName, style, size);

    }

    // Only implemented on Windows

    @Override

    protected void populateFontFileNameMap(HashMap<String, String> fontToFileMap, HashMap<String, String> fontToFamilyNameMap,

            HashMap<String, ArrayList<String>> familyToFontListMap, Locale locale) {}

}