package de.extio.lmlib.client;

import java.time.Duration;
import java.util.concurrent.TimeUnit;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.client.reactive.ReactorClientHttpConnector;
import org.springframework.web.reactive.function.client.WebClient;

import io.netty.channel.ChannelOption;
import io.netty.handler.timeout.ReadTimeoutHandler;
import io.netty.handler.timeout.WriteTimeoutHandler;
import reactor.netty.http.client.HttpClient;

@Configuration
public class WebClientConfiguration {
	
	private static final int TIMEOUT = 300000;
	
	private static final int CONNECT_TIMEOUT = 10000;
	
	@Bean
	@Qualifier("lmLibWebClientBuilder")
	WebClient.Builder lmLibWebClientBuilder() {
		final HttpClient httpClient = HttpClient.create()
				.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, CONNECT_TIMEOUT)
				.responseTimeout(Duration.ofMillis(TIMEOUT))
				.doOnConnected(conn -> conn.addHandlerLast(new ReadTimeoutHandler(TIMEOUT, TimeUnit.MILLISECONDS)).addHandlerLast(new WriteTimeoutHandler(TIMEOUT, TimeUnit.MILLISECONDS)));
		
		return WebClient.builder()
				.clientConnector(new ReactorClientHttpConnector(httpClient))
				.defaultHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
				.defaultHeader(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE);
	}
	
}