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package tech.msop.core.http;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JsonNode;
import tech.msop.core.tool.jackson.JsonUtil;
import tech.msop.core.tool.utils.Exceptions;
import okhttp3.*;
import okhttp3.internal.Util;

import javax.annotation.Nullable;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.Map;

/**
 * ok http 封装，相应结构体
 *
 * @author ruozhuliufeng
 */
public class HttpResponse implements ResponseSpec, Closeable {
	private final Request request;
	private final Response response;
	private final ResponseBody body;

	HttpResponse(final Response response) {
		this.request = response.request();
		this.response = response;
		this.body = ifNullBodyToEmpty(response.body());
	}

	@Override
	public int code() {
		return response.code();
	}

	@Override
	public String message() {
		return response.message();
	}

	@Override
	public boolean isOk() {
		return response.isSuccessful();
	}

	@Override
	public boolean isRedirect() {
		return response.isRedirect();
	}

	@Override
	public Headers headers() {
		return response.headers();
	}

	@Override
	public List cookies() {
		return Cookie.parseAll(request.url(), this.headers());
	}

	@Override
	public Request rawRequest() {
		return this.request;
	}

	@Override
	public Response rawResponse() {
		return this.response;
	}

	@Override
	public ResponseBody rawBody() {
		return this.body;
	}

	@Override
	public String asString() {
		try {
			return body.string();
		} catch (IOException e) {
			throw Exceptions.unchecked(e);
		}
	}

	@Override
	public byte[] asBytes() {
		try {
			return body.bytes();
		} catch (IOException e) {
			throw Exceptions.unchecked(e);
		}
	}

	@Override
	public InputStream asStream() {
		return body.byteStream();
	}

	@Override
	public JsonNode asJsonNode() {
		return JsonUtil.readTree(asBytes());
	}

	@Override
	public  T asValue(Class valueType) {
		return JsonUtil.readValue(asBytes(), valueType);
	}

	@Override
	public  T asValue(TypeReference typeReference) {
		return JsonUtil.readValue(asBytes(), typeReference);
	}

	@Override
	public  List asList(Class valueType) {
		return JsonUtil.readList(asBytes(), valueType);
	}

	@Override
	public  Map asMap(Class keyClass, Class valueType) {
		return JsonUtil.readMap(asBytes(), keyClass, valueType);
	}

	@Override
	public  Map asMap(Class valueType) {
		return this.asMap(String.class, valueType);
	}

	@Override
	public  T asDomValue(Class valueType) {
		return DomMapper.readValue(this.asStream(), valueType);
	}

	@Override
	public  List asDomList(Class valueType) {
		return DomMapper.readList(this.asStream(), valueType);
	}

	@Override
	public File toFile(File file) {
		toFile(file.toPath());
		return file;
	}

	@Override
	public Path toFile(Path path) {
		try {
			Files.copy(this.asStream(), path);
			return path;
		} catch (IOException e) {
			throw Exceptions.unchecked(e);
		}
	}

	@Override
	public MediaType contentType() {
		return body.contentType();
	}

	@Override
	public long contentLength() {
		return body.contentLength();
	}

	@Override
	public String toString() {
		return response.toString();
	}

	private static ResponseBody ifNullBodyToEmpty(@Nullable ResponseBody body) {
		return body == null ? Util.EMPTY_RESPONSE : body;
	}

	@Override
	public void close() throws IOException {
		Util.closeQuietly(this.body);
	}
}