/*
 * Copyright 2009 the original author or authors.
 *
 * Licensed 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.gradle.api.plugins;

import org.gradle.api.Action;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.artifacts.ConfigurationContainer;
import org.gradle.api.artifacts.Dependency;
import org.gradle.api.artifacts.dsl.RepositoryHandler;
import org.gradle.api.artifacts.maven.Conf2ScopeMappingContainer;
import org.gradle.api.internal.artifacts.dsl.DefaultRepositoryHandler;
import org.gradle.api.internal.plugins.DslObject;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.publication.maven.internal.DefaultDeployerFactory;
import org.gradle.api.publication.maven.internal.DefaultMavenFactory;
import org.gradle.api.publication.maven.internal.DefaultMavenRepositoryHandlerConvention;
import org.gradle.api.publication.maven.internal.MavenFactory;
import org.gradle.api.tasks.Upload;
import org.gradle.logging.LoggingManagerInternal;

/**
 * <p>A {@link org.gradle.api.Plugin} which allows project artifacts to be deployed to a Maven repository, or installed
 * to the local Maven cache.</p>
 *
 * @author Hans Dockter
 */
public class MavenPlugin implements Plugin<ProjectInternal> {
    public static final int COMPILE_PRIORITY = 300;
    public static final int RUNTIME_PRIORITY = 200;
    public static final int TEST_COMPILE_PRIORITY = 150;
    public static final int TEST_RUNTIME_PRIORITY = 100;

    public static final int PROVIDED_COMPILE_PRIORITY = COMPILE_PRIORITY + 100;
    public static final int PROVIDED_RUNTIME_PRIORITY = COMPILE_PRIORITY + 150;

    public static final String INSTALL_TASK_NAME = "install";

    public void apply(final ProjectInternal project) {
        project.getPlugins().apply(BasePlugin.class);

        DefaultMavenFactory mavenFactory = new DefaultMavenFactory();
        final MavenPluginConvention pluginConvention = addConventionObject(project, mavenFactory);
        final DefaultDeployerFactory deployerFactory = new DefaultDeployerFactory(
                mavenFactory,
                project.getServices().getFactory(LoggingManagerInternal.class),
                project.getFileResolver(),
                pluginConvention,
                project.getConfigurations(),
                pluginConvention.getConf2ScopeMappings());

        project.getTasks().withType(Upload.class, new Action<Upload>() {
            public void execute(Upload upload) {
                RepositoryHandler repositories = upload.getRepositories();
                DefaultRepositoryHandler handler = (DefaultRepositoryHandler) repositories;
                DefaultMavenRepositoryHandlerConvention repositoryConvention = new DefaultMavenRepositoryHandlerConvention(handler, deployerFactory);
                new DslObject(repositories).getConvention().getPlugins().put("maven", repositoryConvention);
            }
        });
        PluginContainer plugins = project.getPlugins();
        plugins.withType(JavaPlugin.class, new Action<JavaPlugin>() {
            public void execute(JavaPlugin javaPlugin) {
                configureJavaScopeMappings(project.getConfigurations(), pluginConvention.getConf2ScopeMappings());
                configureInstall(project);
            }
        });
        plugins.withType(WarPlugin.class, new Action<WarPlugin>() {
            public void execute(WarPlugin warPlugin) {
                configureWarScopeMappings(project.getConfigurations(), pluginConvention.getConf2ScopeMappings());
            }
        });
    }

    private MavenPluginConvention addConventionObject(ProjectInternal project, MavenFactory mavenFactory) {
        MavenPluginConvention mavenConvention = new MavenPluginConvention(project, mavenFactory);
        Convention convention = project.getConvention();
        convention.getPlugins().put("maven", mavenConvention);
        return mavenConvention;
    }

    private void configureJavaScopeMappings(ConfigurationContainer configurations, Conf2ScopeMappingContainer mavenScopeMappings) {
        mavenScopeMappings.addMapping(COMPILE_PRIORITY, configurations.getByName(JavaPlugin.COMPILE_CONFIGURATION_NAME),
                Conf2ScopeMappingContainer.COMPILE);
        mavenScopeMappings.addMapping(RUNTIME_PRIORITY, configurations.getByName(JavaPlugin.RUNTIME_CONFIGURATION_NAME),
                Conf2ScopeMappingContainer.RUNTIME);
        mavenScopeMappings.addMapping(TEST_COMPILE_PRIORITY, configurations.getByName(JavaPlugin.TEST_COMPILE_CONFIGURATION_NAME),
                Conf2ScopeMappingContainer.TEST);
        mavenScopeMappings.addMapping(TEST_RUNTIME_PRIORITY, configurations.getByName(JavaPlugin.TEST_RUNTIME_CONFIGURATION_NAME),
                Conf2ScopeMappingContainer.TEST);
    }

    private void configureWarScopeMappings(ConfigurationContainer configurations, Conf2ScopeMappingContainer mavenScopeMappings) {
        mavenScopeMappings.addMapping(PROVIDED_COMPILE_PRIORITY, configurations.getByName(WarPlugin.PROVIDED_COMPILE_CONFIGURATION_NAME),
                Conf2ScopeMappingContainer.PROVIDED);
        mavenScopeMappings.addMapping(PROVIDED_RUNTIME_PRIORITY, configurations.getByName(WarPlugin.PROVIDED_RUNTIME_CONFIGURATION_NAME),
                Conf2ScopeMappingContainer.PROVIDED);
    }

    private void configureInstall(Project project) {
        Upload installUpload = project.getTasks().add(INSTALL_TASK_NAME, Upload.class);
        Configuration configuration = project.getConfigurations().getByName(Dependency.ARCHIVES_CONFIGURATION);
        installUpload.setConfiguration(configuration);
        MavenRepositoryHandlerConvention repositories = new DslObject(installUpload.getRepositories()).getConvention().getPlugin(MavenRepositoryHandlerConvention.class);
        repositories.mavenInstaller();
        installUpload.setDescription("Does a maven install of the archives artifacts into the local .m2 cache.");
    }
}
