/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.myfaces.extensions.scripting.core.refreshContext;

import org.apache.commons.io.FilenameUtils;
import org.apache.myfaces.extensions.scripting.api.Configuration;
import org.apache.myfaces.extensions.scripting.api.ScriptingConst;
import org.apache.myfaces.extensions.scripting.core.util.WeavingContext;
import org.apache.myfaces.extensions.scripting.monitor.ClassResource;
import org.apache.myfaces.extensions.scripting.monitor.RefreshAttribute;
import org.apache.myfaces.extensions.scripting.monitor.RefreshContext;
import org.apache.myfaces.extensions.scripting.monitor.WatchedResource;
import org.junit.Test;

import java.io.File;
import java.util.Collection;
import java.util.Set;

import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

/**
 * Testcases for the refresh context
 *
 * @author Werner Punz (latest modification by $Author$)
 * @version $Revision$ $Date$
 */

public class RefreshContextTest {

    private static String PROBE1 = "../../src/test/resources/compiler/TestProbe1.java";
    private static String PROBE2 = "../../src/test/resources/compiler/TestProbe2.java";
    private static String RESOURCES = "../../src/test/resources/";

    private static final String TAINT_HISTORY_SIZE = "Taint history size";
    private static final String TAINT_HISTORY_CONTAINS = "Taint history contains";
    private static final String THREE_NEW_ENTRIES_IN_THE_LOG = "three new entries in the log";
    private static final String ALL_ENTRIES_GCED = "All entries gced";

    File probe1;
    File probe2;
    File root;

    public RefreshContextTest() {
        ClassLoader loader = Thread.currentThread().getContextClassLoader();

        String currentPath = loader.getResource("./").getPath();
        String sourcePath1 = currentPath + PROBE1;
        String sourcePath2 = currentPath + PROBE2;
        String rootPath = currentPath + RESOURCES;

        sourcePath1 = FilenameUtils.normalize(sourcePath1);
        sourcePath2 = FilenameUtils.normalize(sourcePath2);
        rootPath = FilenameUtils.normalize(rootPath);

        probe1 = new File(sourcePath1);
        probe2 = new File(sourcePath2);
        root = new File(rootPath);

        WeavingContext.setConfiguration(new Configuration());
        WeavingContext.getConfiguration().addSourceDir(ScriptingConst.ENGINE_TYPE_JSF_JAVA, root.getAbsolutePath());
        WeavingContext.setRefreshContext(new RefreshContext());
    }

    @Test
    public void testTaingLog() {
        RefreshContext ctx = WeavingContext.getRefreshContext();
        ctx.setTaintLogTimeout(0);

        ClassResource data = new ClassResource();
        data.setAClass(this.getClass());
        data.getRefreshAttribute().requestRefresh();
        data.getRefreshAttribute().executedRefresh();

        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);

        assertTrue(THREE_NEW_ENTRIES_IN_THE_LOG, ctx.getTaintHistory(0l).size() == 3);
        try {
            Thread.sleep(20);
        } catch (InterruptedException e) {
            fail(e.toString());
        }
        ctx.gcTaintLog();
        assertTrue(ALL_ENTRIES_GCED, ctx.getTaintHistory(0l).size() == 0);

        ctx.setTaintLogTimeout(300000000l);
        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);
        ctx.gcTaintLog();
        assertTrue(THREE_NEW_ENTRIES_IN_THE_LOG, ctx.getTaintHistory(0l).size() == 3);

    }

    @Test
    public void testTaintHistory() {
        RefreshContext ctx = WeavingContext.getRefreshContext();
        ctx.setTaintLogTimeout(3);

        ClassResource data = new ClassResource();
        data.setAClass(this.getClass());
        data.getRefreshAttribute().requestRefresh();
        data.getRefreshAttribute().executedRefresh();

        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);

        Set<String> result = ctx.getTaintHistoryClasses(0l);
        assertTrue(TAINT_HISTORY_CONTAINS, result.contains(this.getClass().getName()));
        assertTrue(TAINT_HISTORY_SIZE, result.size() == 1);

    }

    @Test
    public void testTaintHistoryLastNoOfEntroies() {
        RefreshContext ctx = WeavingContext.getRefreshContext();
        ctx.setTaintLogTimeout(3);

        ClassResource data = new ClassResource();
        data.setAClass(this.getClass());
        data.getRefreshAttribute().requestRefresh();
        data.getRefreshAttribute().executedRefresh();

        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);
        ctx.addTaintLogEntry(data);

        Collection<WatchedResource> result = ctx.getLastTainted(100);
        assertTrue(TAINT_HISTORY_SIZE, result.size() == 3);
        result = ctx.getLastTainted(2);
        assertTrue(TAINT_HISTORY_SIZE, result.size() == 2);
        result = ctx.getLastTainted(0);
        assertTrue(TAINT_HISTORY_SIZE, result.size() == 0);

    }

}