package de.mrbesen.telegram;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.security.KeyStore;

import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLParameters;
import javax.net.ssl.TrustManagerFactory;

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpsConfigurator;
import com.sun.net.httpserver.HttpsExchange;
import com.sun.net.httpserver.HttpsParameters;
import com.sun.net.httpserver.HttpsServer;


//for https server: https://stackoverflow.com/questions/2308479/simple-java-https-server
//for jks store: https://stackoverflow.com/questions/2138940/import-pem-into-java-key-store
public class WebhookTelegramAPI extends TelegramAPI {

	private int port = 8000;
	private String pw = "supersecret";
	
	public static class MyHandler implements HttpHandler {
		@Override
		public void handle(HttpExchange t) throws IOException {
			String response = "This is the response";
			HttpsExchange httpsExchange = (HttpsExchange) t;
			t.getResponseHeaders().add("Access-Control-Allow-Origin", "*");
			t.sendResponseHeaders(200, response.getBytes().length);
			OutputStream os = t.getResponseBody();
			os.write(response.getBytes());
			os.close();
		}
	}

	public void main() throws Exception {
		try {
			// setup the socket address
			InetSocketAddress address = new InetSocketAddress(port);

			// initialise the HTTPS server
			HttpsServer httpsServer = HttpsServer.create(address, 0);
			SSLContext sslContext = SSLContext.getInstance("TLS");

			// initialise the keystore
			char[] password = "password".toCharArray();
			KeyStore ks = KeyStore.getInstance("JKS");
			FileInputStream fis = new FileInputStream("testkey.jks");
			ks.load(fis, password);

			// setup the key manager factory
			KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
			kmf.init(ks, password);

			// setup the trust manager factory
			TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
			tmf.init(ks);

			// setup the HTTPS context and parameters
			sslContext.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
			httpsServer.setHttpsConfigurator(new HttpsConfigurator(sslContext) {
				public void configure(HttpsParameters params) {
					try {
						// initialise the SSL context
						SSLContext c = getSSLContext();
						SSLEngine engine = c.createSSLEngine();
						params.setNeedClientAuth(false);
						params.setCipherSuites(engine.getEnabledCipherSuites());
						params.setProtocols(engine.getEnabledProtocols());

						// Set the SSL parameters
						SSLParameters sslParameters = sslContext.getSupportedSSLParameters();
						params.setSSLParameters(sslParameters);

					} catch (Exception ex) {
						System.out.println("Failed to create HTTPS port");
					}
				}
			});
			httpsServer.createContext("/test", new MyHandler());
			httpsServer.setExecutor(null); // creates a default executor
			httpsServer.start();

		} catch (Exception exception) {
			System.out.println("Failed to create HTTPS server on port " + port + " of localhost");
			exception.printStackTrace();

		}
	}

	public WebhookTelegramAPI(String apikey) {
		super(apikey);
	}

}