/*
 * Copyright 2012 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.plugins.javascript.coffeescript;

import groovy.lang.Closure;
import org.gradle.api.Action;
import org.gradle.api.file.FileCollection;
import org.gradle.api.file.FileTree;
import org.gradle.api.logging.LogLevel;
import org.gradle.api.tasks.Classpath;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.Nested;
import org.gradle.api.tasks.OutputDirectory;
import org.gradle.api.tasks.PathSensitive;
import org.gradle.api.tasks.PathSensitivity;
import org.gradle.api.tasks.SourceTask;
import org.gradle.api.tasks.TaskAction;
import org.gradle.plugins.javascript.coffeescript.compile.internal.DefaultCoffeeScriptCompileSpec;
import org.gradle.plugins.javascript.coffeescript.compile.internal.rhino.RhinoCoffeeScriptCompiler;
import org.gradle.plugins.javascript.rhino.worker.internal.DefaultRhinoWorkerHandleFactory;
import org.gradle.plugins.javascript.rhino.worker.internal.RhinoWorkerHandleFactory;
import org.gradle.process.internal.worker.WorkerProcessFactory;

import javax.inject.Inject;
import java.io.File;

public class CoffeeScriptCompile extends SourceTask {

    private Object coffeeScriptJs;
    private Object destinationDir;
    private Object rhinoClasspath;
    private CoffeeScriptCompileOptions options = new CoffeeScriptCompileOptions();

    @Inject
    protected WorkerProcessFactory getWorkerProcessBuilderFactory() {
        throw new UnsupportedOperationException();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    @PathSensitive(PathSensitivity.RELATIVE)
    public FileTree getSource() {
        return super.getSource();
    }

    @PathSensitive(PathSensitivity.RELATIVE)
    @InputFiles
    public FileCollection getCoffeeScriptJs() {
        return getProject().files(coffeeScriptJs);
    }

    /**
     * Sets Coffee Script JavaScript file.
     *
     * @since 4.0
     */
    public void setCoffeeScriptJs(FileCollection coffeeScriptJs) {
        this.coffeeScriptJs = coffeeScriptJs;
    }

    public void setCoffeeScriptJs(Object coffeeScriptJs) {
        this.coffeeScriptJs = coffeeScriptJs;
    }

    @Classpath
    public FileCollection getRhinoClasspath() {
        return getProject().files(rhinoClasspath);
    }

    /**
     * Sets Rhino classpath.
     *
     * @since 4.0
     */
    public void setRhinoClasspath(FileCollection rhinoClasspath) {
        this.rhinoClasspath = rhinoClasspath;
    }

    public void setRhinoClasspath(Object rhinoClasspath) {
        this.rhinoClasspath = rhinoClasspath;
    }

    @OutputDirectory
    public File getDestinationDir() {
        return getProject().file(destinationDir);
    }

    /**
     * Sets destination directory.
     *
     * @since 4.0
     */
    public void setDestinationDir(File destinationDir) {
        this.destinationDir = destinationDir;
    }

    public void setDestinationDir(Object destinationDir) {
        this.destinationDir = destinationDir;
    }

    @Nested
    public CoffeeScriptCompileOptions getOptions() {
        return options;
    }

    public void options(Action<CoffeeScriptCompileOptions> action) {
        action.execute(getOptions());
    }

    public void options(Closure<?> closure) {
        getProject().configure(getOptions(), closure);
    }

    @TaskAction
    public void doCompile() {
        RhinoWorkerHandleFactory handleFactory = new DefaultRhinoWorkerHandleFactory(getWorkerProcessBuilderFactory());

        CoffeeScriptCompileSpec spec = new DefaultCoffeeScriptCompileSpec();
        spec.setCoffeeScriptJs(getCoffeeScriptJs().getSingleFile());
        spec.setDestinationDir(getDestinationDir());
        spec.setSource(getSource());
        spec.setOptions(getOptions());

        LogLevel logLevel = getProject().getGradle().getStartParameter().getLogLevel();
        CoffeeScriptCompiler compiler = new RhinoCoffeeScriptCompiler(handleFactory, getRhinoClasspath(), logLevel, getProject().getProjectDir());

        setDidWork(compiler.compile(spec).getDidWork());
    }
}
