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package org.ruoxue.java_147.net.url;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatCode;

import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.StandardCharsets;

import org.apache.commons.io.IOUtils;
import org.junit.Test;

public class URLMethodsTest {

	@Test
	public void constructor() {
		try {
			String value = "https://username:password@www.ruoxue.org/java-learn/java-net?amount=101#top";
			URL url = new URL(value);
			System.out.println(url);
			System.out.println("Protocol: " + url.getProtocol());
			System.out.println("Authority: " + url.getAuthority());
			System.out.println("UserInfo: " + url.getUserInfo());
			System.out.println("Host: " + url.getHost());
			System.out.println("Port: " + url.getPort());
			System.out.println("DefaultPort: " + url.getDefaultPort());
			System.out.println("File: " + url.getFile());
			System.out.println("Path: " + url.getPath());
			System.out.println("Query: " + url.getQuery());
			System.out.println("Ref: " + url.getRef());

			URL url2 = new URL("https", "www.ruoxue.org", 443, "/java-learn/java-net?amount=101#top");
			System.out.println(url2);
			assertThat(url.getProtocol()).isEqualTo(url2.getProtocol());
			assertThat(url.getHost()).isEqualTo(url2.getHost());
			assertThat(url.getDefaultPort()).isEqualTo(url2.getDefaultPort());
			assertThat(url.getFile()).isEqualTo(url2.getFile());
			assertThat(url.getPath()).isEqualTo(url2.getPath());
			assertThat(url.getQuery()).isEqualTo(url2.getQuery());
			assertThat(url.getRef()).isEqualTo(url2.getRef());
		} catch (MalformedURLException ex) {
			throw new RuntimeException(ex.getMessage(), ex);
		}
	}

	@Test
	public void constructorThrowException() {
		assertThatCode(() -> {
			String value = "/java-learn/java-net";
			URL url = new URL(value);
			System.out.println(url);
		}).isInstanceOf(MalformedURLException.class);
	}

	@Test
	public void openConnection() {
		try {
			String value = "https://www.ruoxue.org";
			URL url = new URL(value);
			System.out.println(url);
			URLConnection conn = url.openConnection();
			System.out.println(conn);
			System.out.println(conn.getContentType());
			System.out.println(conn.getConnectTimeout());
			assertThat(conn.getContentType()).isEqualTo("text/html; charset=utf-8");
			assertThat(conn.getConnectTimeout()).isEqualTo(0);
		} catch (Exception ex) {
			throw new RuntimeException(ex.getMessage(), ex);
		}
	}

	@Test
	public void openStream() {
		try {
			URL url = new URL("https://www.ruoxue.org");
			System.out.println(url);
			try (InputStream in = url.openStream()) {
				String result = IOUtils.toString(in, StandardCharsets.UTF_8.toString());
				System.out.println(result.length());
				assertThat(result).hasSizeGreaterThan(0);
			}
		} catch (Exception ex) {
			throw new RuntimeException(ex.getMessage(), ex);
		}
	}
}