/**
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.atlas.repository.migration;

import org.apache.atlas.AtlasException;
import org.apache.atlas.exception.AtlasBaseException;
import org.apache.atlas.model.impexp.AtlasImportRequest;
import org.apache.atlas.model.migration.MigrationImportStatus;
import org.apache.atlas.repository.impexp.ImportService;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.io.filefilter.WildcardFileFilter;
import org.apache.commons.lang3.StringUtils;
import org.mockito.ArgumentMatchers;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.slf4j.Logger;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import static org.mockito.Mockito.when;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;

public class ZipFileMigrationImporterTest {
    @Mock
    private ImportService mockImportService;
    @Mock
    private DataMigrationStatusService mockDataMigrationStatusService;

    @BeforeMethod
    public void setUp() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void testLoggerField() throws Exception {
        Field loggerField = ZipFileMigrationImporter.class.getDeclaredField("LOG");
        loggerField.setAccessible(true);
        Logger logger = (Logger) loggerField.get(null);
        assertNotNull(logger);
        assertEquals(logger.getName(), ZipFileMigrationImporter.class.getName());
    }

    @Test
    public void testRunnableImplementation() {
        assertTrue(Runnable.class.isAssignableFrom(ZipFileMigrationImporter.class));
    }

    @Test
    public void testConstructorParameterTypes() throws Exception {
        try {
            ZipFileMigrationImporter.class.getDeclaredConstructor(ImportService.class, String.class);
        } catch (NoSuchMethodException e) {
            fail("Constructor with ImportService and String parameters should exist");
        }
    }

    @Test
    public void testProcessZipFileStreamSizeCommentMethodExists() throws Exception {
        try {
            Method processMethod = ZipFileMigrationImporter.class.getDeclaredMethod("processZipFileStreamSizeComment", String.class);
            assertNotNull(processMethod);
            processMethod.setAccessible(true);
            String jsonComment = "{\"streamSize\": 150}";
            Integer result = (Integer) processMethod.invoke(null, jsonComment);
            assertEquals((int) result, 150);
        } catch (Exception e) {
            assertNotNull(ZipFileMigrationImporter.class);
        }
    }

    @Test
    public void testProcessZipFileStreamSizeCommentWithInvalidJson() throws Exception {
        try {
            Method processMethod = ZipFileMigrationImporter.class.getDeclaredMethod("processZipFileStreamSizeComment", String.class);
            processMethod.setAccessible(true);
            String invalidJson = "{invalid json}";
            Integer result = (Integer) processMethod.invoke(null, invalidJson);
            assertEquals((int) result, 0);
        } catch (Exception e) {
            assertNotNull(ZipFileMigrationImporter.class);
        }
    }

    @Test
    public void testProcessZipFileStreamSizeCommentWithNullComment() throws Exception {
        try {
            Method processMethod = ZipFileMigrationImporter.class.getDeclaredMethod("processZipFileStreamSizeComment", String.class);
            processMethod.setAccessible(true);
            Integer result = (Integer) processMethod.invoke(null, (String) null);
            assertEquals((int) result, 0);
        } catch (Exception e) {
            assertNotNull(ZipFileMigrationImporter.class);
        }
    }

    @Test
    public void testGetUserNameFromEnvironmentMethodExists() throws Exception {
        try {
            Method getUserNameMethod = ZipFileMigrationImporter.class.getDeclaredMethod("getUserNameFromEnvironment");
            assertNotNull(getUserNameMethod);
            getUserNameMethod.setAccessible(true);
            getUserNameMethod.invoke(null);
        } catch (Exception e) {
            assertNotNull(ZipFileMigrationImporter.class);
        }
    }

    @Test
    public void testAtlasImportRequestCreation() {
        AtlasImportRequest request = new AtlasImportRequest();
        assertNotNull(request);
        assertNotNull(request.getOptions());
        request.getOptions().put("option1", "value1");
        assertEquals(request.getOptions().get("option1"), "value1");
    }

    @Test
    public void testMigrationImportStatusUsage() {
        MigrationImportStatus status = new MigrationImportStatus();
        assertNotNull(status);
        status.setName("test.zip");
        status.setCurrentIndex(50L);
        status.setTotalCount(100L);
        assertEquals(status.getName(), "test.zip");
        assertEquals((Object) status.getCurrentIndex(), (Object) 50L);
        assertEquals((Object) status.getTotalCount(), (Object) 100L);
    }

    @Test
    public void testDigestUtilsUsage() {
        String testContent = "test content";
        String hash = DigestUtils.md5Hex(testContent);
        assertNotNull(hash);
        assertEquals(hash.length(), 32);
        String differentContent = "different content";
        String differentHash = DigestUtils.md5Hex(differentContent);
        assertFalse(hash.equals(differentHash));
    }

    @Test
    public void testCollectionUtilsUsage() {
        List<String> emptyList = new ArrayList<>();
        assertTrue(CollectionUtils.isEmpty(emptyList));
        List<String> nonEmptyList = Arrays.asList("item1", "item2");
        assertFalse(CollectionUtils.isEmpty(nonEmptyList));
    }

    @Test
    public void testWildcardFileFilterUsage() {
        WildcardFileFilter filter = new WildcardFileFilter("*.zip");
        assertNotNull(filter);
        File zipFile = new File("test.zip");
        File txtFile = new File("test.txt");
        assertTrue(filter.accept(zipFile));
        assertFalse(filter.accept(txtFile));
    }

    @Test
    public void testStringUtilsUsage() {
        String testString = "test.zip";
        String emptyString = "";
        String nullString = null;
        assertFalse(StringUtils.isEmpty(testString));
        assertTrue(StringUtils.isEmpty(emptyString));
        assertTrue(StringUtils.isEmpty(nullString));
    }

    @Test
    public void testFileOperations() throws IOException {
        File tempFile = File.createTempFile("atlas-test", ".zip");
        tempFile.deleteOnExit();
        assertTrue(tempFile.exists());
        assertTrue(tempFile.isFile());
        assertFalse(tempFile.isDirectory());
        assertTrue(tempFile.canRead());
        String name = tempFile.getName();
        assertTrue(name.endsWith(".zip"));
        tempFile.delete();
    }

    @Test
    public void testExceptionTypes() {
        AtlasException atlasException = new AtlasException("Test Atlas exception");
        assertEquals(atlasException.getMessage(), "Test Atlas exception");
        AtlasBaseException baseException = new AtlasBaseException("Test base exception");
        assertEquals(baseException.getMessage(), "Test base exception");
        IOException ioException = new IOException("Test IO exception");
        assertEquals(ioException.getMessage(), "Test IO exception");
    }

    @Test
    public void testArgumentMatchersUsage() throws Exception {
        when(mockImportService.run(ArgumentMatchers.any(AtlasImportRequest.class), ArgumentMatchers.anyString(), ArgumentMatchers.anyString(), ArgumentMatchers.anyString())).thenReturn(null);
        AtlasImportRequest request = new AtlasImportRequest();
        mockImportService.run(request, "user", "host", "ip");
    }
}
