/*
 * Copyright 2024-2026 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
 *
 *      https://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 com.alibaba.cloud.ai.graph.serializer.std;

import com.alibaba.cloud.ai.graph.serializer.Serializer;

import java.io.IOException;
import java.io.ObjectOutput;
import java.util.Objects;
import java.util.Optional;

class ObjectOutputWithMapper implements ObjectOutput {

	private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(ObjectOutputWithMapper.class);

	private final ObjectOutput out;

	private final SerializerMapper mapper;

	public ObjectOutputWithMapper(ObjectOutput out, SerializerMapper mapper) {
		this.out = Objects.requireNonNull(out, "out cannot be null");
		this.mapper = Objects.requireNonNull(mapper, "mapper cannot be null");
	}

	@Override
	public void writeObject(Object obj) throws IOException {
		Objects.requireNonNull(obj, "object to serialize cannot be null");

		Optional<Serializer<Object>> serializer = mapper.getSerializer(obj.getClass());

		if (serializer.isPresent()) {
			out.writeObject(obj.getClass());
			serializer.get().write(obj, this);
		}
		else {
			out.writeObject(obj);
		}
		// check if written by serializer
		out.flush();
	}

	@Override
	public void write(int b) throws IOException {
		out.write(b);
	}

	@Override
	public void write(byte[] b) throws IOException {
		out.write(b);
	}

	@Override
	public void write(byte[] b, int off, int len) throws IOException {
		out.write(b, off, len);
	}

	@Override
	public void flush() throws IOException {
		out.flush();
	}

	@Override
	public void close() throws IOException {
		out.close();
	}

	@Override
	public void writeBoolean(boolean v) throws IOException {
		out.writeBoolean(v);
	}

	@Override
	public void writeByte(int v) throws IOException {
		out.writeByte(v);
	}

	@Override
	public void writeShort(int v) throws IOException {
		out.writeShort(v);
	}

	@Override
	public void writeChar(int v) throws IOException {
		out.writeChar(v);
	}

	@Override
	public void writeInt(int v) throws IOException {
		out.writeInt(v);
	}

	@Override
	public void writeLong(long v) throws IOException {
		out.writeLong(v);
	}

	@Override
	public void writeFloat(float v) throws IOException {
		out.writeFloat(v);
	}

	@Override
	public void writeDouble(double v) throws IOException {
		out.writeDouble(v);
	}

	@Override
	public void writeBytes(String s) throws IOException {
		out.writeBytes(s);
	}

	@Override
	public void writeChars(String s) throws IOException {
		out.writeChars(s);
	}

	@Override
	public void writeUTF(String s) throws IOException {
		Serializer.writeUTF(s, out);
	}

}
