/*
 *  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.tools.ant.taskdefs;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.BuildFileRule;
import org.apache.tools.ant.FileUtilities;
import org.apache.tools.ant.util.FileUtils;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;

import java.io.File;
import java.io.FileReader;
import java.io.IOException;

import static org.apache.tools.ant.AntAssert.assertContains;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

/**
 * Tests FileSet using the Copy task.
 *
 */
public class CopyTest {

    @Rule
    public final BuildFileRule buildRule = new BuildFileRule();


    @Before
    public void setUp() {
        buildRule.configureProject("src/etc/testcases/taskdefs/copy.xml");
        buildRule.executeTarget("setUp");
    }

    @Test
    public void test1() {
        buildRule.executeTarget("test1");
        File f = new File(buildRule.getProject().getProperty("output"), "copytest1.tmp");
        if ( !f.exists()) {
            fail("Copy failed");
        }
    }

    @Test
    public void test2() {
        buildRule.executeTarget("test2");
        File f = new File(buildRule.getProject().getProperty("output"), "copytest1dir/copy.xml");
        if ( !f.exists()) {
            fail("Copy failed");
        }
    }

    @Test
    public void test3() {
        buildRule.executeTarget("test3");
        File file3  = new File(buildRule.getProject().getProperty("output"), "copytest3.tmp");
        //rollback file timestamp instead of delaying test
        FileUtilities.rollbackTimetamps(file3, 3);
        buildRule.executeTarget("test3Part2");
        assertTrue(file3.exists());

        File file3a = new File(buildRule.getProject().getProperty("output"), "copytest3a.tmp");
        assertTrue(file3a.exists());
        File file3b = new File(buildRule.getProject().getProperty("output"), "copytest3b.tmp");
        assertTrue(file3b.exists());
        File file3c = new File(buildRule.getProject().getProperty("output"), "copytest3c.tmp");
        assertTrue(file3c.exists());

        //file length checks rely on touch generating a zero byte file
        if(file3.length()==0) {
            fail("could not overwrite an existing, older file");
        }
        if(file3c.length()!=0) {
            fail("could not force overwrite an existing, newer file");
        }
        if(file3b.length()==0) {
            fail("unexpectedly overwrote an existing, newer file");
        }

        //file time checks for java1.2+
        assertTrue(file3a.lastModified()==file3.lastModified());
        assertTrue(file3c.lastModified()<file3a.lastModified());

    }

    @Test
    public void testFilterTest() {
        buildRule.executeTarget("filtertest");
        assertTrue(buildRule.getLog().indexOf("loop in tokens") == -1);
    }

    @Test
    public void testInfiniteFilter() {
        buildRule.executeTarget("infinitetest");
        assertContains("loop in tokens", buildRule.getOutput());
    }

    @Test
    public void testFilterSet() throws IOException {
        buildRule.executeTarget("testFilterSet");
        File tmp  = new File(buildRule.getProject().getProperty("output"), "copy.filterset.tmp");
        File check  = new File(buildRule.getProject().getBaseDir(), "expected/copy.filterset.filtered");
        assertTrue(tmp.exists());
        assertEquals(FileUtilities.getFileContents(tmp), FileUtilities.getFileContents(check));
    }

    @Test
    public void testFilterChain() throws IOException {
        buildRule.executeTarget("testFilterChain");
        File tmp  = new File(buildRule.getProject().getProperty("output"), "copy.filterchain.tmp");
        File check  = new File(buildRule.getProject().getBaseDir(), "expected/copy.filterset.filtered");
        assertTrue(tmp.exists());
        assertEquals(FileUtilities.getFileContents(tmp), FileUtilities.getFileContents(check));
    }

    @Test
    public void testSingleFileFileset() {
        buildRule.executeTarget("test_single_file_fileset");
        File file  = new File(buildRule.getProject().getProperty("output"),
                                        "copytest_single_file_fileset.tmp");
        assertTrue(file.exists());
    }

    @Test
    public void testSingleFilePath() {
        buildRule.executeTarget("test_single_file_path");
        File file  = new File(buildRule.getProject().getProperty("output"),
                                        "copytest_single_file_path.tmp");
        assertTrue(file.exists());
    }

    @Test
    public void testTranscoding() throws IOException {
        buildRule.executeTarget("testTranscoding");
        File f1 = buildRule.getProject().resolveFile("copy/expected/utf-8");
        File f2 = new File(buildRule.getProject().getProperty("output"), "copytest1.tmp");
        assertEquals(FileUtilities.getFileContents(f1), FileUtilities.getFileContents(f2));
    }

    @Test
    public void testMissingFileIgnore() {
        buildRule.executeTarget("testMissingFileIgnore");
        assertContains("Warning: Could not find file", buildRule.getLog());
    }

    @Test
    public void testMissingFileBail() {
        try {
            buildRule.executeTarget("testMissingFileBail");
            fail("not-there doesn't exist");
        } catch (BuildException ex) {
            assertTrue(ex.getMessage()
                    .startsWith("Warning: Could not find file "));
        }
    }

    @Test
    public void testMissingDirIgnore() {
        buildRule.executeTarget("testMissingDirIgnore");
        assertContains("Warning: ", buildRule.getLog());
    }

    @Test
    public void testMissingDirBail() {
        try {
            buildRule.executeTarget("testMissingDirBail");
            fail("not-there doesn't exist");
        } catch (BuildException ex) {
            assertTrue(ex.getMessage().endsWith(" does not exist."));
        }
    }
    
    @Test
    public void testFileResourcePlain() {
        buildRule.executeTarget("testFileResourcePlain");
        File file1 = new File(buildRule.getProject().getProperty("to.dir")+"/file1.txt");
        File file2 = new File(buildRule.getProject().getProperty("to.dir")+"/file2.txt");
        File file3 = new File(buildRule.getProject().getProperty("to.dir")+"/file3.txt");
        assertTrue(file1.exists());
        assertTrue(file2.exists());
        assertTrue(file3.exists());
    }

    @Ignore("Previously ignored by naming convention")
    @Test
    public void testFileResourceWithMapper() {
        buildRule.executeTarget("testFileResourceWithMapper");
        File file1 = new File(buildRule.getProject().getProperty("to.dir")+"/file1.txt.bak");
        File file2 = new File(buildRule.getProject().getProperty("to.dir")+"/file2.txt.bak");
        File file3 = new File(buildRule.getProject().getProperty("to.dir")+"/file3.txt.bak");
        assertTrue(file1.exists());
        assertTrue(file2.exists());
        assertTrue(file3.exists());
    }
    
    @Test
    public void testFileResourceWithFilter() {
        buildRule.executeTarget("testFileResourceWithFilter");
        File file1 = new File(buildRule.getProject().getProperty("to.dir")+"/fileNR.txt");
        assertTrue(file1.exists());
        try {
            String file1Content = FileUtils.readFully(new FileReader(file1));
            assertEquals("This is file 42", file1Content);
        } catch (IOException e) {
            // no-op: not a real business error
        }
    }
    
    @Test
    public void testPathAsResource() {
        buildRule.executeTarget("testPathAsResource");
        File file1 = new File(buildRule.getProject().getProperty("to.dir")+"/file1.txt");
        File file2 = new File(buildRule.getProject().getProperty("to.dir")+"/file2.txt");
        File file3 = new File(buildRule.getProject().getProperty("to.dir")+"/file3.txt");
        assertTrue(file1.exists());
        assertTrue(file2.exists());
        assertTrue(file3.exists());
    }
    
    @Test
    public void testZipfileset() {
        buildRule.executeTarget("testZipfileset");
        File file1 = new File(buildRule.getProject().getProperty("to.dir")+"/file1.txt");
        File file2 = new File(buildRule.getProject().getProperty("to.dir")+"/file2.txt");
        File file3 = new File(buildRule.getProject().getProperty("to.dir")+"/file3.txt");
        assertTrue(file1.exists());
        assertTrue(file2.exists());
        assertTrue(file3.exists());
    }

    @Test
    public void testDirset() {
        buildRule.executeTarget("testDirset");
    }
    
    @Ignore("Previously ignored due to naming convention")
    @Test
    public void testResourcePlain() {
        buildRule.executeTarget("testResourcePlain");
    }

    @Ignore("Previously ignored due to naming convention")
    @Test
    public void testResourcePlainWithMapper() {
        buildRule.executeTarget("testResourcePlainWithMapper");
    }

    @Ignore("Previously ignored due to naming convention")
    @Test
    public void testResourcePlainWithFilter() {
        buildRule.executeTarget("testResourcePlainWithFilter");
    }

    @Ignore("Previously ignored due to naming convention")
    @Test
    public void testOnlineResources() {
        buildRule.executeTarget("testOnlineResources");
    }
    
}