/*******************************************************************************
 * Copyright (c) 2014 Bachmann electronic GmbH and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Bachmann electronic GmbH - initial API and implementation
 ******************************************************************************/
package org.eclipse.sisu.equinox.launching.internal;

import static org.hamcrest.CoreMatchers.hasItem;
import static org.junit.Assert.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.codehaus.plexus.logging.Logger;
import org.eclipse.sisu.equinox.launching.BundleStartLevel;
import org.eclipse.sisu.equinox.launching.DefaultEquinoxInstallationDescription;
import org.eclipse.tycho.ArtifactKey;
import org.eclipse.tycho.DefaultArtifactKey;
import org.junit.Before;
import org.junit.Test;

public class DefaultEquinoxInstallationFactoryTest {

    private Map<ArtifactKey, File> bundles;
    private DefaultEquinoxInstallationDescription instDesc;
    private BundleStartLevel defaultLevel;

    private DefaultEquinoxInstallationFactory subject;

    @Before
    public void setup() {
        bundles = new HashMap<>();
        bundles.put(new DefaultArtifactKey("eclipse-plugin", "org.example.bundle1", "1.0"),
                mockFile("absolute/path/to/bundle1"));
        bundles.put(new DefaultArtifactKey("eclipse-plugin", "org.example.bundle2", "1.0"),
                mockFile("absolute/path/to/bundle2"));

        instDesc = new DefaultEquinoxInstallationDescription();
        defaultLevel = new BundleStartLevel(null, 7, false);

        subject = new DefaultEquinoxInstallationFactory(mock(Logger.class));
    }

    @Test
    public void testExplicitlyConfiguredStartLevel() throws IOException {
        instDesc.addBundleStartLevel(new BundleStartLevel("org.example.bundle1", 6, false));

        List<String> config = splitAtComma(subject.toOsgiBundles(bundles, instDesc.getBundleStartLevel(), defaultLevel));
        assertThat(config, hasItem("reference:file:absolute/path/to/bundle1@6"));
    }

    @Test
    public void testExplicitlyConfiguredStartLevelAndAutoStart() throws IOException {
        instDesc.addBundleStartLevel(new BundleStartLevel("org.example.bundle1", 6, true));

        List<String> config = splitAtComma(subject.toOsgiBundles(bundles, instDesc.getBundleStartLevel(), defaultLevel));
        assertThat(config, hasItem("reference:file:absolute/path/to/bundle1@6:start"));
    }

    @Test
    public void testDefaultStartLevelIsNotSet() throws Exception {
        List<String> config = splitAtComma(subject.toOsgiBundles(bundles, instDesc.getBundleStartLevel(), defaultLevel));
        assertThat(config, hasItem("reference:file:absolute/path/to/bundle2")); // don't need @n here because this would be redundant
    }

    @Test
    public void testDefaultAutoStartIsSet() throws Exception {
        defaultLevel = new BundleStartLevel(null, 7, true);

        List<String> config = splitAtComma(subject.toOsgiBundles(bundles, instDesc.getBundleStartLevel(), defaultLevel));
        assertThat(config, hasItem("reference:file:absolute/path/to/bundle2@start"));
    }

    @Test
    public void testExplicitlyConfiguredAutoStart() throws Exception {
        instDesc.addBundleStartLevel(new BundleStartLevel("org.example.bundle1", 0, true)); // level attribute omitted

        List<String> config = splitAtComma(subject.toOsgiBundles(bundles, instDesc.getBundleStartLevel(), defaultLevel));
        assertThat(config, hasItem("reference:file:absolute/path/to/bundle1@start")); // implicitly use default start level
    }

    private static File mockFile(String absolutePath) {
        File file = mock(File.class);
        when(file.getAbsolutePath()).thenReturn(absolutePath);
        return file;
    }

    private static List<String> splitAtComma(String string) {
        return Arrays.asList(string.split(","));
    }

}
