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/*
 * Copyright [2017] [Andy Moncsek]
 *
 * 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.jacpfx.vertx.event.util;

import io.vertx.core.AsyncResult;
import io.vertx.core.eventbus.DeliveryOptions;
import io.vertx.core.eventbus.Message;
import java.util.Optional;
import java.util.function.Consumer;
import org.jacpfx.common.VxmsShared;
import org.jacpfx.common.throwable.ThrowableErrorConsumer;
import org.jacpfx.common.throwable.ThrowableFutureBiConsumer;
import org.jacpfx.common.throwable.ThrowableFutureConsumer;
import org.jacpfx.vertx.event.eventbus.basic.EventbusBridgeExecution;
import org.jacpfx.vertx.event.interfaces.basic.ExecuteEventbusByteCall;
import org.jacpfx.vertx.event.interfaces.basic.RecursiveExecutor;
import org.jacpfx.vertx.event.interfaces.basic.RetryExecutor;
import org.jacpfx.vertx.event.response.basic.ExecuteEventbusBasicByteResponse;

/**
 * Created by Andy Moncsek on 05.04.16.
 * Typed execution of event-bus calls and byte response
 */
public class EventbusByteExecutionUtil {

  /**
   * create execution chain for event-bus request and reply to request event
   *
   * @param _methodId the method identifier
   * @param _targetId the event-bus target id
   * @param _message the message to send
   * @param _byteFunction the function to process the result message
   * @param _requestOptions the event-bus (request) delivery options
   * @param _vxmsShared the vxmsShared instance, containing the Vertx instance and other shared
   * objects per instance
   * @param _failure the failure thrown while task execution
   * @param _errorMethodHandler the error-method handler
   * @param _requestMessage the request message to respond to
   * @param _byteConsumer the consumer that takes a Future to complete, producing the string
   * response
   * @param _errorHandler the error handler
   * @param _onFailureRespond the consumer that takes a Future with the alternate response value in
   * case of failure
   * @param _responseDeliveryOptions the event-bus (response) delivery options
   * @param _retryCount the amount of retries before failure execution is triggered
   * @param _timeout the amount of time before the execution will be aborted
   * @param _circuitBreakerTimeout the amount of time before the circuit breaker closed again
   * @return the execution chain {@link ExecuteEventbusBasicByteResponse}
   */
  public static ExecuteEventbusBasicByteResponse mapToByteResponse(String _methodId,
      String _targetId,
      Object _message,
      ThrowableFutureBiConsumer>, byte[]> _byteFunction,
      DeliveryOptions _requestOptions,
      VxmsShared _vxmsShared,
      Throwable _failure,
      Consumer _errorMethodHandler,
      Message _requestMessage,
      ThrowableFutureConsumer _byteConsumer,
      Consumer _errorHandler,
      ThrowableErrorConsumer _onFailureRespond,
      DeliveryOptions _responseDeliveryOptions,
      int _retryCount,
      long _timeout,
      long _circuitBreakerTimeout) {

    final DeliveryOptions deliveryOptions = Optional.ofNullable(_requestOptions)
        .orElse(new DeliveryOptions());
    final RecursiveExecutor executor = (methodId,
        vxmsShared,
        failure,
        errorMethodHandler,
        requestMessage,
        consumer,
        encoder,
        errorHandler,
        onFailureRespond,
        responseDeliveryOptions,
        retryCount,
        timeout,
        circuitBreakerTimeout) ->
        new ExecuteEventbusBasicByteResponse(methodId,
            vxmsShared, failure,
            errorMethodHandler,
            requestMessage,
            consumer,
            null,
            errorHandler,
            onFailureRespond,
            responseDeliveryOptions,
            retryCount, timeout, circuitBreakerTimeout).
            execute();

    final RetryExecutor retry = (targetId,
        message,
        function,
        requestDeliveryOptions,
        methodId,
        vxmsShared,
        failure,
        errorMethodHandler,
        requestMessage,
        consumer,
        encoder,
        errorHandler,
        onFailureRespond,
        responseDeliveryOptions,
        retryCount,
        timeout,
        circuitBreakerTimeout) ->
        mapToByteResponse(methodId,
            targetId,
            message,
            function,
            requestDeliveryOptions,
            vxmsShared, failure,
            errorMethodHandler,
            requestMessage,
            null,
            errorHandler,
            onFailureRespond,
            responseDeliveryOptions,
            retryCount - 1,
            timeout,
            circuitBreakerTimeout).
            execute();
    final ExecuteEventbusByteCall excecuteEventBusAndReply =
        (methodId, vxmsShared,
            errorMethodHandler,
            requestMessage,
            errorHandler,
            onFailureRespond,
            responseDeliveryOptions,
            retryCount, timeout, circuitBreakerTimeout) ->
            EventbusBridgeExecution.sendMessageAndSupplyHandler(
                methodId,
                _targetId,
                _message,
                _byteFunction,
                deliveryOptions,
                vxmsShared,
                errorMethodHandler,
                requestMessage,
                null,
                errorHandler,
                onFailureRespond,
                responseDeliveryOptions,
                retryCount,
                timeout,
                circuitBreakerTimeout, executor, retry);

    return new ExecuteEventbusBasicByteResponse(_methodId, _vxmsShared, _failure,
        _errorMethodHandler, _requestMessage, _byteConsumer, excecuteEventBusAndReply,
        _errorHandler,
        _onFailureRespond, _responseDeliveryOptions, _retryCount, _timeout, _circuitBreakerTimeout);
  }


}