/*
 * This file is part of fabric-loom, licensed under the MIT License (MIT).
 *
 * Copyright (c) 2021 FabricMC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package net.fabricmc.loom.util.ipc;

import java.io.IOException;
import java.net.UnixDomainSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;

import net.fabricmc.loom.util.IOStringConsumer;

public final class IPCClient implements IOStringConsumer, AutoCloseable {
	private final Path path;
	private final SocketChannel socketChannel;

	public IPCClient(Path path) throws IOException {
		this.path = path;
		socketChannel = setupChannel();
	}

	private SocketChannel setupChannel() throws IOException {
		final UnixDomainSocketAddress address = UnixDomainSocketAddress.of(path);
		return SocketChannel.open(address);
	}

	@Override
	public void accept(String s) throws IOException {
		synchronized (socketChannel) {
			ByteBuffer buf = ByteBuffer.wrap((s + "\n").getBytes(StandardCharsets.UTF_8));

			while (buf.hasRemaining()) {
				socketChannel.write(buf);
			}
		}
	}

	@Override
	public void close() throws Exception {
		synchronized (socketChannel) {
			socketChannel.close();
		}
	}
}