/*
 * 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.maven.lifecycle.internal.stub;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.maven.api.xml.XmlNode;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.internal.impl.DefaultLifecycleRegistry;
import org.apache.maven.lifecycle.DefaultLifecycles;
import org.apache.maven.lifecycle.LifecycleNotFoundException;
import org.apache.maven.lifecycle.LifecyclePhaseNotFoundException;
import org.apache.maven.lifecycle.MavenExecutionPlan;
import org.apache.maven.lifecycle.internal.ExecutionPlanItem;
import org.apache.maven.lifecycle.internal.LifecycleExecutionPlanCalculator;
import org.apache.maven.lifecycle.internal.ProjectBuildList;
import org.apache.maven.lifecycle.internal.ProjectSegment;
import org.apache.maven.lifecycle.internal.Task;
import org.apache.maven.model.InputLocation;
import org.apache.maven.model.InputSource;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.InvalidPluginDescriptorException;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.MojoNotFoundException;
import org.apache.maven.plugin.PluginDescriptorParsingException;
import org.apache.maven.plugin.PluginNotFoundException;
import org.apache.maven.plugin.PluginResolutionException;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
import org.apache.maven.plugin.version.PluginVersionResolutionException;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;

/**
 */
public class LifecycleExecutionPlanCalculatorStub implements LifecycleExecutionPlanCalculator {
    // clean

    public static final MojoDescriptor PRE_CLEAN = createMojoDescriptor("pre-clean");

    public static final MojoDescriptor CLEAN = createMojoDescriptor("clean");

    public static final MojoDescriptor POST_CLEAN = createMojoDescriptor("post-clean");

    // default (or at least some of them)

    public static final MojoDescriptor VALIDATE = createMojoDescriptor("validate");

    public static final MojoDescriptor INITIALIZE = createMojoDescriptor("initialize");

    public static final MojoDescriptor TEST_COMPILE = createMojoDescriptor("test-compile");

    public static final MojoDescriptor PROCESS_TEST_RESOURCES = createMojoDescriptor("process-test-resources");

    public static final MojoDescriptor PROCESS_RESOURCES = createMojoDescriptor("process-resources");

    public static final MojoDescriptor COMPILE = createMojoDescriptor("compile", true);

    public static final MojoDescriptor TEST = createMojoDescriptor("test");

    public static final MojoDescriptor PACKAGE = createMojoDescriptor("package");

    public static final MojoDescriptor INSTALL = createMojoDescriptor("install");

    // site

    public static final MojoDescriptor PRE_SITE = createMojoDescriptor("pre-site");

    public static final MojoDescriptor SITE = createMojoDescriptor("site");

    public static final MojoDescriptor POST_SITE = createMojoDescriptor("post-site");

    public static final MojoDescriptor SITE_DEPLOY = createMojoDescriptor("site-deploy");

    /**
     * @deprecated instead use {@link #getNumberOfExecutions(ProjectBuildList)}
     */
    @Deprecated
    public int getNumberOfExceutions(ProjectBuildList projectBuildList)
            throws InvalidPluginDescriptorException, PluginVersionResolutionException, PluginDescriptorParsingException,
                    NoPluginFoundForPrefixException, MojoNotFoundException, PluginNotFoundException,
                    PluginResolutionException, LifecyclePhaseNotFoundException, LifecycleNotFoundException {
        int result = 0;
        for (ProjectSegment projectBuild : projectBuildList) {
            MavenExecutionPlan plan = calculateExecutionPlan(
                    projectBuild.getSession(),
                    projectBuild.getProject(),
                    projectBuild.getTaskSegment().getTasks());
            result += plan.size();
        }
        return result;
    }

    public int getNumberOfExecutions(ProjectBuildList projectBuildList)
            throws InvalidPluginDescriptorException, PluginVersionResolutionException, PluginDescriptorParsingException,
                    NoPluginFoundForPrefixException, MojoNotFoundException, PluginNotFoundException,
                    PluginResolutionException, LifecyclePhaseNotFoundException, LifecycleNotFoundException {
        return getNumberOfExceutions(projectBuildList);
    }

    @Override
    public void calculateForkedExecutions(MojoExecution mojoExecution, MavenSession session)
            throws MojoNotFoundException, PluginNotFoundException, PluginResolutionException,
                    PluginDescriptorParsingException, NoPluginFoundForPrefixException, InvalidPluginDescriptorException,
                    LifecyclePhaseNotFoundException, LifecycleNotFoundException, PluginVersionResolutionException {
        // Maybe do something ?
    }

    @Override
    public MavenExecutionPlan calculateExecutionPlan(
            MavenSession session, MavenProject project, List<Task> tasks, boolean setup)
            throws PluginNotFoundException, PluginResolutionException, LifecyclePhaseNotFoundException,
                    PluginDescriptorParsingException, MojoNotFoundException, InvalidPluginDescriptorException,
                    NoPluginFoundForPrefixException, LifecycleNotFoundException, PluginVersionResolutionException {
        if (project.equals(ProjectDependencyGraphStub.A)) {
            return getProjectAExecutionPlan();
        }
        if (project.equals(ProjectDependencyGraphStub.B)) {
            return getProjectBExecutionPlan();
        }
        // The remaining are basically "for future expansion"
        List<MojoExecution> me = new ArrayList<>();
        me.add(createMojoExecution("resources", "default-resources", PROCESS_RESOURCES));
        me.add(createMojoExecution("compile", "default-compile", COMPILE));
        return createExecutionPlan(project, me);
    }

    @Override
    public MavenExecutionPlan calculateExecutionPlan(MavenSession session, MavenProject project, List<Task> tasks)
            throws PluginNotFoundException, PluginResolutionException, LifecyclePhaseNotFoundException,
                    PluginDescriptorParsingException, MojoNotFoundException, InvalidPluginDescriptorException,
                    NoPluginFoundForPrefixException, LifecycleNotFoundException, PluginVersionResolutionException {
        return calculateExecutionPlan(session, project, tasks, true);
    }

    @Override
    public void setupMojoExecution(
            MavenSession session,
            MavenProject project,
            MojoExecution mojoExecution,
            Set<MojoDescriptor> alreadyForkedExecutions)
            throws PluginNotFoundException, PluginResolutionException, PluginDescriptorParsingException,
                    MojoNotFoundException, InvalidPluginDescriptorException, NoPluginFoundForPrefixException,
                    LifecyclePhaseNotFoundException, LifecycleNotFoundException, PluginVersionResolutionException {}

    public static MavenExecutionPlan getProjectAExecutionPlan()
            throws PluginNotFoundException, PluginResolutionException, LifecyclePhaseNotFoundException,
                    PluginDescriptorParsingException, MojoNotFoundException, InvalidPluginDescriptorException,
                    NoPluginFoundForPrefixException, LifecycleNotFoundException, PluginVersionResolutionException {
        List<MojoExecution> me = new ArrayList<>();
        me.add(createMojoExecution("initialize", "default-initialize", INITIALIZE));
        me.add(createMojoExecution("resources", "default-resources", PROCESS_RESOURCES));
        me.add(createMojoExecution("compile", "default-compile", COMPILE));
        me.add(createMojoExecution("testResources", "default-testResources", PROCESS_TEST_RESOURCES));
        me.add(createMojoExecution("testCompile", "default-testCompile", TEST_COMPILE));
        me.add(createMojoExecution("test", "default-test", TEST));
        me.add(createMojoExecution("war", "default-war", PACKAGE));
        me.add(createMojoExecution("install", "default-install", INSTALL));
        return createExecutionPlan(ProjectDependencyGraphStub.A.getExecutionProject(), me);
    }

    public static MavenExecutionPlan getProjectBExecutionPlan()
            throws PluginNotFoundException, PluginResolutionException, LifecyclePhaseNotFoundException,
                    PluginDescriptorParsingException, MojoNotFoundException, InvalidPluginDescriptorException,
                    NoPluginFoundForPrefixException, LifecycleNotFoundException, PluginVersionResolutionException {
        List<MojoExecution> me = new ArrayList<>();
        me.add(createMojoExecution("enforce", "enforce-versions", VALIDATE));
        me.add(createMojoExecution("resources", "default-resources", PROCESS_RESOURCES));
        me.add(createMojoExecution("compile", "default-compile", COMPILE));
        me.add(createMojoExecution("testResources", "default-testResources", PROCESS_TEST_RESOURCES));
        me.add(createMojoExecution("testCompile", "default-testCompile", TEST_COMPILE));
        me.add(createMojoExecution("test", "default-test", TEST));
        return createExecutionPlan(ProjectDependencyGraphStub.B.getExecutionProject(), me);
    }

    private static MavenExecutionPlan createExecutionPlan(MavenProject project, List<MojoExecution> mojoExecutions)
            throws InvalidPluginDescriptorException, PluginVersionResolutionException, PluginDescriptorParsingException,
                    NoPluginFoundForPrefixException, MojoNotFoundException, PluginNotFoundException,
                    PluginResolutionException, LifecyclePhaseNotFoundException, LifecycleNotFoundException {
        final List<ExecutionPlanItem> planItemList =
                ExecutionPlanItem.createExecutionPlanItems(project, mojoExecutions);
        return new MavenExecutionPlan(planItemList, getDefaultLifecycles());
    }

    private static DefaultLifecycles getDefaultLifecycles() {
        try {
            return DefaultLifecyclesStub.createDefaultLifecycles();
        } catch (ComponentLookupException e) {
            // ignore
            return null;
        }
    }

    private static MojoExecution createMojoExecution(String goal, String executionId, MojoDescriptor mojoDescriptor) {
        InputSource defaultBindings = new InputSource();
        defaultBindings.setModelId(DefaultLifecycleRegistry.DEFAULT_LIFECYCLE_MODELID);

        final Plugin plugin = mojoDescriptor.getPluginDescriptor().getPlugin();
        plugin.setLocation("version", new InputLocation(12, 34, defaultBindings));
        MojoExecution result = new MojoExecution(plugin, goal, executionId);
        result.setConfiguration(XmlNode.newInstance(executionId + "-" + goal));
        result.setMojoDescriptor(mojoDescriptor);
        result.setLifecyclePhase(mojoDescriptor.getPhase());

        return result;
    }

    public static MojoDescriptor createMojoDescriptor(String phaseName) {
        return createMojoDescriptor(phaseName, false);
    }

    public static MojoDescriptor createMojoDescriptor(String phaseName, boolean threadSafe) {
        final MojoDescriptor mojoDescriptor = new MojoDescriptor();
        mojoDescriptor.setPhase(phaseName);
        final PluginDescriptor descriptor = new PluginDescriptor();
        Plugin plugin = new Plugin();
        plugin.setGroupId("org.apache.maven.test.MavenExecutionPlan");
        plugin.setArtifactId("stub-plugin-" + phaseName);
        descriptor.setPlugin(plugin);
        descriptor.setArtifactId("artifact." + phaseName);
        mojoDescriptor.setPluginDescriptor(descriptor);
        mojoDescriptor.setThreadSafe(threadSafe);
        return mojoDescriptor;
    }

    public static Set<String> getScopes() {
        return new HashSet<>(Arrays.asList("compile"));
    }
}
