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package com.c4_soft.springaddons.rest;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import java.util.Optional;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.context.properties.ConfigurationProperties;

import lombok.Data;

/**
 * 
 * Configuration for HTTP or SOCKS proxy.
 * 
 * 
 * HTTP_PROXY and NO_PROXY standard environment variable are used only if com.c4-soft.springaddons.rest.proxy.hostname is left empty and
 * com.c4-soft.springaddons.rest.proxy.enabled is TRUE or null.
 * 
 *
 * @author Jérôme Wacongne <ch4mp#64;c4-soft.com>
 */
@Data
@AutoConfiguration
@ConfigurationProperties
public class SystemProxyProperties {

	/* also parse standard environment variables */
	@Value("${http_proxy:#{null}}")
	private Optional httpProxy = Optional.empty();

	@Value("${no_proxy:}")
	private List noProxy = List.of();

	public Optional getHttpProxy() {
		return httpProxy.map(t -> {
			try {
				return new URL(t);
			} catch (MalformedURLException e) {
				throw new RuntimeException(e);
			}
		});
	}
}