/*
 * Copyright (c) 2011, 2012, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.apple.internal.jobjc.generator;

import java.io.File;
import java.util.*;

import com.apple.internal.jobjc.generator.classes.*;

public class FileCopier {
    public static List<OutputFile> addSourceFilesFrom(final String srcPath) {
        final List<OutputFile> outputFileList = new ArrayList<OutputFile>();

        final List<File> fileList = getFileList(srcPath);
        for (final File file : fileList) {
            outputFileList.add(new CopiedFile(file, ClassGenerator.JOBJC_PACKAGE, file.getName().replace("\\.java", "")));
        }

        return outputFileList;
    }

    private static List<File> getFileList(final String srcPath) {
        final File srcRoot = new File(srcPath);
        if (!srcRoot.exists()) throw new RuntimeException("Source root " + srcRoot + " does not exist. Nowhere to copy base runtime objects from.");

        final File targetDir = new File(srcRoot, ClassGenerator.JOBJC_PACKAGE.replaceAll("\\.", "\\/"));
        if (!targetDir.exists() || !targetDir.isDirectory()) throw new RuntimeException("Base runtime object source directory " + targetDir + " does not exist. No runtime class files to copy.");

        final List<File> fileList = new ArrayList<File>();
        final File[] targetDirFileList = targetDir.listFiles();
        for (final File file : targetDirFileList) {
            if (!file.isFile()) continue;
            if (!file.getName().endsWith(".java")) continue;
            fileList.add(file);
        }

        return fileList;
    }
}