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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.camel.component.rest.openapi;

import java.util.Set;

import org.apache.camel.AsyncCallback;
import org.apache.camel.AsyncProducer;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Producer;
import org.apache.camel.component.rest.openapi.validator.RequestValidator;
import org.apache.camel.support.processor.DelegateAsyncProcessor;

public class RestOpenApiProducer extends DelegateAsyncProcessor implements AsyncProducer {

    private final Producer delegate;
    private final boolean removeHostHeader;
    private final RequestValidator requestValidator;

    public RestOpenApiProducer(Producer delegate, boolean removeHostHeader, RequestValidator requestValidator) {
        super(delegate);
        this.delegate = delegate;
        this.removeHostHeader = removeHostHeader;
        this.requestValidator = requestValidator;
    }

    @Override
    public boolean process(Exchange exchange, AsyncCallback callback) {
        if (removeHostHeader) {
            exchange.getMessage().removeHeader("Host");
        }

        if (requestValidator != null) {
            try {
                Set validationErrors = requestValidator.validate(exchange);
                if (!validationErrors.isEmpty()) {
                    RestOpenApiValidationException exception = new RestOpenApiValidationException(validationErrors);
                    exchange.setException(exception);
                    callback.done(true);
                    return true;
                }
            } catch (Exception e) {
                exchange.setException(e);
                callback.done(true);
                return true;
            }
        }

        return super.process(exchange, callback);
    }

    @Override
    public Endpoint getEndpoint() {
        return delegate.getEndpoint();
    }

    @Override
    public boolean isSingleton() {
        return delegate.isSingleton();
    }

}