/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* $Id$ */

package org.apache.fop.fonts;

import java.util.List;

/**
 * Sets up a set of custom (embedded) fonts
 */
public class CustomFontCollection implements FontCollection {

    private FontResolver fontResolver;
    private final List<EmbedFontInfo> embedFontInfoList;

    /**
     * Main constructor.
     * @param fontResolver a font resolver
     * @param customFonts the list of custom fonts
     * @param useComplexScriptFeatures true if complex script features enabled
     */
    public CustomFontCollection(FontResolver fontResolver,
           List<EmbedFontInfo> customFonts, boolean useComplexScriptFeatures) {
        this.fontResolver = fontResolver;
        if (this.fontResolver == null) {
            //Ensure that we have minimal font resolution capabilities
            this.fontResolver = FontManager.createMinimalFontResolver(useComplexScriptFeatures);
        }
        this.embedFontInfoList = customFonts;
    }

    /** {@inheritDoc} */
    public int setup(int num, FontInfo fontInfo) {
        if (embedFontInfoList == null) {
            return num; //No fonts to process
        }

        String internalName = null;
        //FontReader reader = null;

        for (int i = 0; i < embedFontInfoList.size(); i++) {
            EmbedFontInfo embedFontInfo = embedFontInfoList.get(i);

            //String metricsFile = configFontInfo.getMetricsFile();
            internalName = "F" + num;
            num++;
            /*
            reader = new FontReader(metricsFile);
            reader.useKerning(configFontInfo.getKerning());
            reader.setFontEmbedPath(configFontInfo.getEmbedFile());
            fontInfo.addMetrics(internalName, reader.getFont());
            */

            LazyFont font = new LazyFont(embedFontInfo, this.fontResolver);
            fontInfo.addMetrics(internalName, font);

            List<FontTriplet> triplets = embedFontInfo.getFontTriplets();
            for (int tripletIndex = 0; tripletIndex < triplets.size(); tripletIndex++) {
                FontTriplet triplet = (FontTriplet) triplets.get(tripletIndex);
                fontInfo.addFontProperties(internalName, triplet);
            }
        }
        return num;
    }
}