/*
 * 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.
 */
package org.apache.maven.plugin.surefire.booterclient.output;

import java.io.File;

import org.apache.maven.surefire.api.util.internal.DumpFileUtils;

import static java.lang.String.format;
import static org.apache.maven.plugin.surefire.SurefireHelper.DUMPSTREAM_FILENAME;
import static org.apache.maven.plugin.surefire.SurefireHelper.DUMPSTREAM_FILENAME_FORMATTER;
import static org.apache.maven.plugin.surefire.SurefireHelper.DUMP_FILENAME;
import static org.apache.maven.plugin.surefire.SurefireHelper.DUMP_FILENAME_FORMATTER;
import static org.apache.maven.plugin.surefire.SurefireHelper.EVENTS_BINARY_DUMP_FILENAME_FORMATTER;

/**
 * Reports errors to dump file.
 * Used only within java process of the plugin itself and not the forked JVM.
 */
public final class InPluginProcessDumpSingleton {
    private static final InPluginProcessDumpSingleton SINGLETON = new InPluginProcessDumpSingleton();

    private InPluginProcessDumpSingleton() {}

    public static InPluginProcessDumpSingleton getSingleton() {
        return SINGLETON;
    }

    public synchronized File dumpStreamException(Throwable t, String msg, File reportsDirectory, int jvmRun) {
        File dump = newDumpStreamFile(reportsDirectory, jvmRun);
        DumpFileUtils.dumpException(t, msg == null ? "null" : msg, dump);
        return dump;
    }

    public synchronized void dumpStreamException(Throwable t, String msg, File reportsDirectory) {
        DumpFileUtils.dumpException(t, msg == null ? "null" : msg, newDumpStreamFile(reportsDirectory));
    }

    public synchronized File dumpStreamText(String msg, File reportsDirectory, int jvmRun) {
        File dump = newDumpStreamFile(reportsDirectory, jvmRun);
        DumpFileUtils.dumpText(msg == null ? "null" : msg, dump);
        return dump;
    }

    public synchronized void dumpStreamText(String msg, File reportsDirectory) {
        DumpFileUtils.dumpText(msg == null ? "null" : msg, newDumpStreamFile(reportsDirectory));
    }

    public synchronized void dumpException(Throwable t, String msg, File reportsDirectory, int jvmRun) {
        File dump = newDumpFile(reportsDirectory, jvmRun);
        DumpFileUtils.dumpException(t, msg == null ? "null" : msg, dump);
    }

    public synchronized void dumpException(Throwable t, String msg, File reportsDirectory) {
        File dump = newDumpFile(reportsDirectory);
        DumpFileUtils.dumpException(t, msg == null ? "null" : msg, dump);
    }

    public File getEventStreamBinaryFile(File reportsDirectory, int jvmRun) {
        reportsDirectory.mkdirs();
        return new File(reportsDirectory, format(EVENTS_BINARY_DUMP_FILENAME_FORMATTER, jvmRun));
    }

    private File newDumpStreamFile(File reportsDirectory) {
        return new File(reportsDirectory, DUMPSTREAM_FILENAME);
    }

    private static File newDumpStreamFile(File reportsDirectory, int jvmRun) {
        return new File(reportsDirectory, format(DUMPSTREAM_FILENAME_FORMATTER, jvmRun));
    }

    private static File newDumpFile(File reportsDirectory, int jvmRun) {
        return new File(reportsDirectory, format(DUMP_FILENAME_FORMATTER, jvmRun));
    }

    private static File newDumpFile(File reportsDirectory) {
        return new File(reportsDirectory, DUMP_FILENAME);
    }
}
