package liquibase.servicelocator;

import java.io.File;
import java.lang.reflect.Modifier;
import java.net.MalformedURLException;
import java.net.URL;

import liquibase.database.Database;
import liquibase.parser.ChangeLogParser;
import liquibase.resource.ClassLoaderResourceAccessor;
import liquibase.resource.CompositeResourceAccessor;
import liquibase.test.TestContext;
import org.junit.After;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;

public class ServiceLocatorTest {
    private ServiceLocator serviceLocator;

    @Before
    public void setup() throws Exception{
        CompositeResourceAccessor resourceAccessor = new CompositeResourceAccessor(new ClassLoaderResourceAccessor(), TestContext.getInstance().getTestResourceAccessor());

        serviceLocator = ServiceLocator.getInstance();
        serviceLocator.setResourceAccessor(resourceAccessor);
    }

    @After
    public void teardown() {
        ServiceLocator.reset();
    }

    @Test
     public void reset() {
         ServiceLocator instance1 = ServiceLocator.getInstance();
         ServiceLocator.reset();
         assertFalse(instance1 == ServiceLocator.getInstance());
     }


    @Test
    public void getClasses() throws Exception {
        Class[] classes = serviceLocator.findClasses(ChangeLogParser.class);
        assertTrue(classes.length > 0);
    }

    @Test
    public void findClass() throws Exception {
        Class[] classes = serviceLocator.findClasses(Database.class);
        for (Class clazz : classes) {
            assertFalse(clazz.getName()+" is abstract", Modifier.isAbstract(clazz.getModifiers()));                    
            assertFalse(clazz.getName()+" is an interface", Modifier.isInterface(clazz.getModifiers()));
            assertNotNull(clazz.getConstructors());
        }
        assertTrue(classes.length > 0);
    }

//    @Test
//    public void extractZipFile() throws MalformedURLException {
//        File zipFile = ServiceLocator.extractZipFile(new URL(
//                "jar:file:/C:/My%20Projects/liquibase2/liquibase-integration-tests/src/test/resources/ext/jars/liquibase-samplesqlgenerator.jar!/liquibase/sqlgenerator"));
//        assertEquals("C:/My Projects/liquibase2/liquibase-integration-tests/src/test/resources/ext/jars/liquibase-samplesqlgenerator.jar", zipFile.toString().replace(
//                '\\', '/'));
//        zipFile = ServiceLocator.extractZipFile(new URL(
//                "jar:file:/home/myuser/liquibase2/liquibase-integration-tests/src/test/resources/ext/jars/liquibase-samplesqlgenerator.jar!/liquibase/sqlgenerator"));
//        assertEquals("/home/myuser/liquibase2/liquibase-integration-tests/src/test/resources/ext/jars/liquibase-samplesqlgenerator.jar", zipFile.toString().replace('\\',
//                '/'));
//    }
}