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Common files for Quarkus Hilla extension.

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/*
 * Copyright 2023 Marco Collovati, Dario Götze
 *
 * 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 com.github.mcollovati.quarkus.hilla;

import com.vaadin.flow.shared.ApplicationConstants;
import io.quarkus.runtime.annotations.Recorder;
import io.vertx.core.Handler;
import io.vertx.core.http.HttpServerRequest;
import io.vertx.ext.web.RoutingContext;

@Recorder
public class BodyHandlerRecorder {

    /**
     * In hybrid environment sometimes the requests hangs while reading body, causing the UI to freeze until read
     * timeout is reached.
     * This method returns a vert.x handler that delegates Flow requests to the Quarkus request body handler before
     * proceeding with the execution.
     * See https://github.com/mcollovati/quarkus-hilla/issues/182
     * See https://github.com/mcollovati/quarkus-hilla/issues/490
     *
     * @param bodyHandler Quarkus request body handler
     * @return a new handler that delegates Flow requests to request body handler.
     */
    public Handler installBodyHandler(Handler bodyHandler) {
        return routingContext -> {
            HttpServerRequest request = routingContext.request();
            // Do not delegate request to static resources
            if (request.params().contains(ApplicationConstants.REQUEST_TYPE_PARAMETER)
                    && !request.uri().startsWith("/VAADIN/")
                    && !request.uri().startsWith("/HILLA/")) {
                bodyHandler.handle(routingContext);
            } else {
                routingContext.next();
            }
        };
    }
}