/*
 * Copyright 2010 the original author or authors.
 *
 * Licensed 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.gradle.internal.nativeintegration.console;

import org.fusesource.jansi.io.WindowsAnsiProcessor;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;

public class WindowsConsoleDetector implements ConsoleDetector {
    @Override
    public ConsoleMetaData getConsole() {
        // Use Jansi's detection mechanism
        try {
            new WindowsAnsiProcessor(new PrintStream(new ByteArrayOutputStream()), true);
            boolean disableUnicodeSupportDetection = NativePlatformConsoleDetector.isWindowsWithNonUnicodeCodePage();
            return new UnicodeProxyConsoleMetaData(FallbackConsoleMetaData.ATTACHED) {
                @Override
                public boolean supportsUnicode() {
                    if (disableUnicodeSupportDetection) {
                        return false;
                    }
                    return metaData.supportsUnicode();
                }
            };
        } catch (IOException ignore) {
            // Not attached to a console
            return null;
        }
    }

    @Override
    @SuppressWarnings("SystemConsoleNull")
    public boolean isConsoleInput() {
        return System.console() != null;
    }
}
