package org.apache.maven.repository.internal;

/*
 * 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.
 */

import java.util.Arrays;
import java.util.List;

import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.collection.CollectRequest;
import org.eclipse.aether.collection.CollectResult;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResult;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class RepositorySystemTest
    extends AbstractRepositoryTestCase
{
    @Test
    public void testResolveVersionRange()
        throws Exception
    {
        //VersionRangeResult resolveVersionRange( RepositorySystemSession session, VersionRangeRequest request )
        //                throws VersionRangeResolutionException;

    }

    @Test
    public void testResolveVersion()
        throws Exception
    {
        //VersionResult resolveVersion( RepositorySystemSession session, VersionRequest request )
        //                throws VersionResolutionException;
    }

    @Test
    public void testReadArtifactDescriptor()
        throws Exception
    {
        Artifact artifact = new DefaultArtifact( "ut.simple:artifact:extension:classifier:1.0" );

        ArtifactDescriptorRequest request = new ArtifactDescriptorRequest();
        request.setArtifact( artifact );
        request.addRepository( newTestRepository() );

        ArtifactDescriptorResult result = system.readArtifactDescriptor( session, request );

        List<Dependency> deps = result.getDependencies();
        assertEquals( 2, deps.size() );
        checkUtSimpleArtifactDependencies( deps.get( 0 ), deps.get( 1 ) );
    }

    /**
     * check ut.simple:artifact:1.0 dependencies
     */
    private void checkUtSimpleArtifactDependencies( Dependency dep1, Dependency dep2 )
    {
        assertEquals( "compile", dep1.getScope() );
        assertFalse( dep1.isOptional() );
        assertEquals( 0, dep1.getExclusions().size() );
        Artifact depArtifact = dep1.getArtifact();
        assertEquals( "ut.simple", depArtifact.getGroupId() );
        assertEquals( "dependency", depArtifact.getArtifactId() );
        assertEquals( "1.0", depArtifact.getVersion() );
        assertEquals( "1.0", depArtifact.getBaseVersion() );
        assertNull( depArtifact.getFile() );
        assertFalse( depArtifact.isSnapshot() );
        assertEquals( "", depArtifact.getClassifier() );
        assertEquals( "jar", depArtifact.getExtension() );
        assertEquals( "java", depArtifact.getProperty( "language", null ) );
        assertEquals( "jar", depArtifact.getProperty( "type", null ) );
        assertEquals( "true", depArtifact.getProperty( "constitutesBuildPath", null ) );
        assertEquals( "false", depArtifact.getProperty( "includesDependencies", null ) );
        assertEquals( 4, depArtifact.getProperties().size() );

        assertEquals( "compile", dep2.getScope() );
        assertFalse( dep2.isOptional() );
        assertEquals( 0, dep2.getExclusions().size() );
        depArtifact = dep2.getArtifact();
        assertEquals( "ut.simple", depArtifact.getGroupId() );
        assertEquals( "dependency", depArtifact.getArtifactId() );
        assertEquals( "1.0", depArtifact.getVersion() );
        assertEquals( "1.0", depArtifact.getBaseVersion() );
        assertNull( depArtifact.getFile() );
        assertFalse( depArtifact.isSnapshot() );
        assertEquals( "sources", depArtifact.getClassifier() );
        assertEquals( "jar", depArtifact.getExtension() );
        assertEquals( "java", depArtifact.getProperty( "language", null ) );
        assertEquals( "jar", depArtifact.getProperty( "type", null ) ); // shouldn't it be java-sources given the classifier?
        assertEquals( "true", depArtifact.getProperty( "constitutesBuildPath", null ) ); // shouldn't it be false given the classifier?
        assertEquals( "false", depArtifact.getProperty( "includesDependencies", null ) );
        assertEquals( 4, depArtifact.getProperties().size() );
    }

    @Test
    public void testCollectDependencies()
        throws Exception
    {
        Artifact artifact = new DefaultArtifact( "ut.simple:artifact:extension:classifier:1.0" );
        // notice: extension and classifier not really used in this test...

        CollectRequest collectRequest = new CollectRequest();
        collectRequest.setRoot( new Dependency( artifact, null ) );
        collectRequest.addRepository( newTestRepository() );

        CollectResult collectResult = system.collectDependencies( session, collectRequest );

        List<DependencyNode> nodes = collectResult.getRoot().getChildren();
        assertEquals( 2, nodes.size() );
        checkUtSimpleArtifactDependencies( nodes.get( 0 ).getDependency(), nodes.get( 1 ).getDependency() );
    }

    @Test
    public void testResolveArtifact()
        throws Exception
    {
        Artifact artifact = new DefaultArtifact( "ut.simple:artifact:1.0" );

        ArtifactRequest artifactRequest = new ArtifactRequest();
        artifactRequest.setArtifact( artifact );
        artifactRequest.addRepository( newTestRepository() );

        ArtifactResult artifactResult = system.resolveArtifact( session, artifactRequest );
        checkArtifactResult( artifactResult, "artifact-1.0.jar" );

        artifact = new DefaultArtifact( "ut.simple:artifact:zip:1.0" );
        artifactRequest.setArtifact( artifact );
        artifactResult = system.resolveArtifact( session, artifactRequest );
        checkArtifactResult( artifactResult, "artifact-1.0.zip" );

        artifact = new DefaultArtifact( "ut.simple:artifact:zip:classifier:1.0" );
        artifactRequest.setArtifact( artifact );
        artifactResult = system.resolveArtifact( session, artifactRequest );
        checkArtifactResult( artifactResult, "artifact-1.0-classifier.zip" );
    }

    private void checkArtifactResult( ArtifactResult result, String filename )
    {
        assertFalse( result.isMissing() );
        assertTrue( result.isResolved() );
        Artifact artifact = result.getArtifact();
        assertNotNull( artifact.getFile() );
        assertEquals( filename, artifact.getFile().getName() );
    }

    @Test
    public void testResolveArtifacts()
        throws Exception
    {
        ArtifactRequest req1 = new ArtifactRequest();
        req1.setArtifact( new DefaultArtifact( "ut.simple:artifact:1.0" ) );
        req1.addRepository( newTestRepository() );

        ArtifactRequest req2 = new ArtifactRequest();
        req2.setArtifact( new DefaultArtifact( "ut.simple:artifact:zip:1.0" ) );
        req2.addRepository( newTestRepository() );

        ArtifactRequest req3 = new ArtifactRequest();
        req3.setArtifact( new DefaultArtifact( "ut.simple:artifact:zip:classifier:1.0" ) );
        req3.addRepository( newTestRepository() );

        List<ArtifactRequest> requests = Arrays.asList( req1, req2, req3 );

        List<ArtifactResult> results = system.resolveArtifacts( session, requests );

        assertEquals( 3, results.size() );
        checkArtifactResult( results.get( 0 ), "artifact-1.0.jar" );
        checkArtifactResult( results.get( 1 ), "artifact-1.0.zip" );
        checkArtifactResult( results.get( 2 ), "artifact-1.0-classifier.zip" );
    }

    @Test
    public void testResolveMetadata()
        throws Exception
    {
        //List<MetadataResult> resolveMetadata( RepositorySystemSession session,
        //                                      Collection<? extends MetadataRequest> requests );
    }

    @Test
    public void testInstall()
        throws Exception
    {
        //InstallResult install( RepositorySystemSession session, InstallRequest request )
        //                throws InstallationException;
        // release, snapshot unique ou non unique, attachment
    }

    @Test
    public void testDeploy()
        throws Exception
    {
        //DeployResult deploy( RepositorySystemSession session, DeployRequest request )
        //                throws DeploymentException;
    }

    @Test
    public void testNewLocalRepositoryManager()
        throws Exception
    {
        //LocalRepositoryManager newLocalRepositoryManager( LocalRepository localRepository );
    }

    @Test
    public void testNewSyncContext()
        throws Exception
    {
        //SyncContext newSyncContext( RepositorySystemSession session, boolean shared );
    }

}