/*
 * Copyright 2019 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 org.springframework.cloud.dataflow.samples.source;

import java.util.function.Function;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Import;
import org.springframework.integration.support.MutableMessage;
import org.springframework.messaging.Message;

@SpringBootApplication
@Import({ org.springframework.cloud.fn.supplier.http.HttpSupplierConfiguration.class })
public class HttpClickIngest {

	@Bean
	public Function<Message<?>, Message<UserClicks>> toUserClicks() {
		return message -> {
			return new MutableMessage<>(new UserClicks(
					(String) message.getHeaders().get("kafka_receivedMessageKey"),
					Long.valueOf(new String((byte[])message.getPayload()))));
		};
	}

	public class UserClicks {

		private String username;

		private Long clicks;

		public UserClicks(String username, Long clicks) {
			this.username = username;
			this.clicks = clicks;
		}
	}

	public static void main(String[] args) {
		SpringApplication.run(HttpClickIngest.class, args);
	}
}
