/*
 * Copyright (c) 2017, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

import java.io.*;
import java.net.*;
import java.util.Base64;

import sun.misc.*;

import com.sun.ejte.ccl.reporter.SimpleReporterAdapter;

public class HttpBasicAuthTest implements Runnable {

    private static SimpleReporterAdapter stat =
            new SimpleReporterAdapter("appserv-tests");

    private boolean result = true;

    private int suxesCount = 0;
    private int failureCount = 0;
    private int totalCount = 0;

    private long minTime = Long.MAX_VALUE;
    private long maxTime = 0;
    private long avgTime = 0;
    private double stdDev  = 0;
    private long totalTime = 0;
    private long indiTimes[];
    private int indiIndex = 0;

    private String url;
    private String username;
    private String password;
    private int threadCount;
    private int loopCount;
    private boolean positiveTest = true;

    public HttpBasicAuthTest(String url, String username, String password,
        int threadCount, int loopCount, boolean positiveTest) {

        this.url =  url;
        this.username = username;
        this.password = password;
        this.threadCount = threadCount;
        this.loopCount = loopCount;
        this.positiveTest = positiveTest;
    }

    public void doTest() {

        indiTimes = new long[threadCount*loopCount];
        for(int i=0; i<indiTimes.length; i++) {
            indiTimes[i] = 0;
        }

        Thread tarray[] = new Thread[threadCount];

        for(int i=0; i<threadCount; i++)
            tarray[i] = new Thread(this, "Http-request-thread-" + i);

        for(int i=0; i<threadCount; i++)
            tarray[i].start();

        for(int i=0; i<threadCount; i++) {
            try {
                tarray[i].join();
            } catch(Exception e) {
                e.printStackTrace();
            }
        }

        if( suxesCount != 0 )
            avgTime = totalTime/suxesCount;

        for(int i=0; i<indiIndex; i++) {
            stdDev += (indiTimes[i]-avgTime)*(indiTimes[i]-avgTime);
        }
        if( indiIndex>1)
            stdDev = stdDev/(indiIndex-1);

        stdDev = Math.pow(stdDev, 0.5);

        System.out.println("Total requests: " + (suxesCount+failureCount) +
                           ", success count: " + suxesCount +
                           ", failure count: " + failureCount);
        System.out.println("Min/Max/Avg/StdDev: (milliseconds) " +
                           minTime + "/" +
                           maxTime + "/" + avgTime + "/" + stdDev);

        stat.addDescription("JDBCRealm test for URL " + url);
        String testId = "JDBCRealm test for URL " + url;
        if( positiveTest) {
            if( result ) {
                stat.addStatus(testId, stat.PASS);
            } else {
                stat.addStatus(testId, stat.FAIL);
            }
        } else { // negative test
            if( result ) {
                stat.addStatus(testId, stat.FAIL);
            } else {
                stat.addStatus(testId, stat.PASS);
            }
        }
        stat.printSummary(testId);
    }

    public void run() {
        long st,et;

        for(int i=0; i<loopCount; i++) {

            try {
                st = System.currentTimeMillis();
                run0();
                et = System.currentTimeMillis();
                synchronized(this) {
                    suxesCount++;
                    long tt = et-st;

                    totalTime += tt;
                    indiTimes[indiIndex++] = tt;

                    if( tt > maxTime )
                        maxTime = tt;
                    if( tt < minTime )
                        minTime = tt;

                }
            } catch(Exception e) {
                e.printStackTrace();
                synchronized(this) {
                    failureCount++;
                }

                // test failed(well failed if its a postive test, this
                // is expected if its a negative test)

                result = false;
                continue;
            }

        }
    }

    protected void run0() throws Exception {

        System.out.println(Thread.currentThread().getName() +
                           " - running ...");
        URL u = new URL(url);
        URLConnection uconn = u.openConnection();

        String up = username + ":" + password;
        up = Base64.getEncoder().encodeToString(up.getBytes());

        uconn.setRequestProperty("authorization", "Basic " + up);

        BufferedReader reader = new BufferedReader(new InputStreamReader(
            uconn.getInputStream()));
        String lineread;
        while((lineread=reader.readLine()) != null ) {
            //System.out.println(Thread.currentThread() + " -- " + lineread);
        }
    }

    public static final String URL_OPTION = "-url";
    public static final String USER_OPTION = "-user";
    public static final String PASS_OPTION = "-pass";
    public static final String THREADS_OPTION = "-tc";
    public static final String LOOP_OPTION = "-lc";
    public static final String NEGATIVE_TEST_OPTION = "-negative";

    public static void usage() {
        System.out.println("usage: java HttpBasicAuthTest -url <url> -user <user> -pass <pass> -tc <thread-count> -lc <loop-count>");
    }

    public static void main(String[] args) {

        String url = null;
        String user = null;
        String pass = null;
        int tc=-1;
        int lc=-1;
        boolean positiveTest = true;

        for(int i=0; i<args.length; i++) {
            if( args[i].intern() == URL_OPTION.intern() ) {
                url = args[++i];
            } else if( args[i].intern() == USER_OPTION.intern() ) {
                user = args[++i];
            } else if( args[i].intern() == PASS_OPTION.intern() ) {
                pass = args[++i];
            } else if( args[i].intern() == THREADS_OPTION.intern() ) {
                tc = Integer.parseInt(args[++i]);
            } else if( args[i].intern() == LOOP_OPTION.intern() ) {
                lc = Integer.parseInt(args[++i]);
            } else if( args[i].intern() == NEGATIVE_TEST_OPTION.intern() ) {
                positiveTest = false;
            } else {
                usage();
                System.exit(1);
            }
        }

        if( url == null || user == null || pass == null ||
            tc==-1 || lc==-1 ) {
            usage();
            System.exit(1);
        }

        HttpBasicAuthTest test =
            new HttpBasicAuthTest(url, user, pass, tc, lc, positiveTest);
        test.doTest();
    }

}