import org.gradle.plugin.devel.PluginDeclaration;
import org.gradle.plugin.use.PluginId;
import org.gradle.plugin.use.internal.DefaultPluginId;

import java.io.File;

class PrecompiledGroovyScript {
    private static final String SCRIPT_PLUGIN_EXTENSION = ".gradle";

    private final ScriptSource firstPassSource;
    private final ScriptSource scriptSource;
    private final Type type;

    @Internal
    abstract ListProperty<PrecompiledGroovyScript> getScriptPlugins();

    @TaskAction
    void extractPluginsBlocks() {
        getFileSystemOperations().delete(spec -> spec.delete(getExtractedPluginRequestsClassesDirectory()));
        getExtractedPluginRequestsClassesDirectory().get().getAsFile().mkdirs();

        // TODO: Use worker API?
        for (PrecompiledGroovyScript scriptPlugin : getScriptPlugins().get()) {

        FileTree scriptPluginFiles = pluginSourceSet.getAllSource().matching(PrecompiledGroovyScript::filterPluginFiles);

        List<PrecompiledGroovyScript> scriptPlugins = scriptPluginFiles.getFiles().stream()
            .map(file -> new PrecompiledGroovyScript(file, getTextFileResourceLoader()))
            .peek(scriptPlugin -> validateScriptPlugin(project, scriptPlugin))

    @Internal
    abstract ListProperty<PrecompiledGroovyScript> getScriptPlugins();

    @TaskAction
    void generatePluginAdapters() {
        getFileSystemOperations().delete(spec -> spec.delete(getPluginAdapterSourcesOutputDirectory()));
        getPluginAdapterSourcesOutputDirectory().get().getAsFile().mkdirs();

        // TODO: Use worker API?
        for (PrecompiledGroovyScript scriptPlugin : getScriptPlugins().get()) {

    def "throws for filename yielding invalid plugin id"() {
        when:
        new PrecompiledGroovyScript(new File("/foo/bar/f%izzbuzz.gradle"), loader)

        then:
        thrown InvalidPluginIdException
    }

    def "creates valid java classname from script filename based plugin id"() {
        expect:
        def script = new PrecompiledGroovyScript(new File("/foo/bar/$filename"), loader)
        script.pluginAdapterClassName == javaClass

    abstract ConfigurableFileCollection getClasspath();

    @OutputDirectory
    abstract DirectoryProperty getPrecompiledGroovyScriptsOutputDirectory();

    @Internal
    abstract ListProperty<PrecompiledGroovyScript> getScriptPlugins();

    @TaskAction
    void compileScripts() {
        ClassLoaderScope classLoaderScope = getClassLoaderScopeRegistry().getCoreAndPluginsScope();