//
//  ========================================================================
//  Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.start;

import static org.hamcrest.Matchers.containsString;
import static org.junit.Assert.assertThat;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.StringReader;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.jetty.toolchain.test.IO;
import org.eclipse.jetty.toolchain.test.MavenTestingUtils;
import org.eclipse.jetty.toolchain.test.OS;
import org.eclipse.jetty.toolchain.test.TestingDir;
import org.junit.Rule;
import org.junit.Test;

/**
 * Test various license handling.
 */
public class LicensingTest
{
    @Rule
    public TestingDir testdir = new TestingDir();

    @Rule
    public SystemExitAsException exitrule = new SystemExitAsException();

    private String assertFileExists(Path basePath, String name) throws IOException
    {
        Path file = basePath.resolve(OS.separators(name));
        FS.exists(file);
        return IO.readToString(file.toFile());
    }

    private void execMain(List<String> cmds) throws Exception
    {
        int len = cmds.size();
        String args[] = cmds.toArray(new String[len]);

        System.err.printf("%n## Exec: %s%n", Utils.join(cmds,", "));
        Main main = new Main();
        StartArgs startArgs = main.processCommandLine(args);
        main.start(startArgs);
    }

    public List<String> getBaseCommandLine(Path basePath)
    {
        List<String> cmds = new ArrayList<String>();
        cmds.add("-Djava.io.tmpdir=" + MavenTestingUtils.getTargetDir().getAbsolutePath());
        cmds.add("-Djetty.home=" + MavenTestingUtils.getTestResourceDir("dist-home").getAbsolutePath());
        cmds.add("-Djetty.base=" + basePath.toString());
        cmds.add("--testing-mode");

        return cmds;
    }

    @Test
    public void testAdd_NoLicensed() throws Exception
    {
        Path basePath = testdir.getEmptyPathDir();

        List<String> cmds = getBaseCommandLine(basePath);

        cmds.add("--add-to-start=http,deploy");

        execMain(cmds);
    }

    @Test
    public void testAdd_CDI_Licensed() throws Exception
    {
        Path basePath = testdir.getEmptyPathDir();

        List<String> cmds = getBaseCommandLine(basePath);

        cmds.add("-Dorg.eclipse.jetty.start.ack.licenses=true");
        cmds.add("--add-to-start=cdi");

        execMain(cmds);
    }
    
    @Test
    public void testAdd_HTTP2_Licensed() throws Exception
    {
        Path basePath = testdir.getEmptyPathDir();

        List<String> cmds = getBaseCommandLine(basePath);

        cmds.add("-Dorg.eclipse.jetty.start.ack.licenses=true");
        cmds.add("--add-to-start=http2");

        execMain(cmds);
        
        String contents = assertFileExists(basePath, "start.ini");
        assertThat("Contents",contents,containsString("--module=http2"+System.lineSeparator()));
    }
    
    @Test
    public void testAdd_Http_Http2_Then_Deploy() throws Exception
    {
        Path basePath = testdir.getEmptyPathDir();

        List<String> cmds = getBaseCommandLine(basePath);

        cmds.add("-Dorg.eclipse.jetty.start.ack.license.protonego-impl=true");
        cmds.add("--add-to-start=http,http2");

        execMain(cmds);
        
        String contents = assertFileExists(basePath, "start.ini");
        assertThat("Contents",contents,containsString("--module=http"+System.lineSeparator()));
        assertThat("Contents",contents,containsString("--module=http2"+System.lineSeparator()));
        
        // now request deploy (no license check should occur)
        List<String> cmds2 = getBaseCommandLine(basePath);
        cmds2.add("--add-to-start=deploy");
        execMain(cmds2);

        contents = assertFileExists(basePath, "start.ini");
        assertThat("Contents",contents,containsString("--module=deploy"+System.lineSeparator()));
    }
    
    @Test
    public void testCreate_HTTP2_Licensed() throws Exception
    {
        Path basePath = testdir.getEmptyPathDir();

        List<String> cmds = getBaseCommandLine(basePath);

        cmds.add("-Dorg.eclipse.jetty.start.ack.licenses=true");
        cmds.add("--dry-run");
        
        StringReader startIni = new StringReader("--module=http2\n");
        try (BufferedWriter writer = Files.newBufferedWriter(basePath.resolve("start.ini")))
        {
            IO.copy(startIni,writer);
        }

        execMain(cmds);
    }

    @Test
    public void testCreate_CDI_Licensed() throws Exception
    {
        Path basePath = testdir.getEmptyPathDir();

        List<String> cmds = getBaseCommandLine(basePath);

        cmds.add("-Dorg.eclipse.jetty.start.ack.licenses=true");
        cmds.add("--create-files");

        StringReader startIni = new StringReader("--module=cdi\n");
        try (BufferedWriter writer = Files.newBufferedWriter(basePath.resolve("start.ini")))
        {
            IO.copy(startIni,writer);
        }

        execMain(cmds);
    }
}