/*
 *  Copyright (c) 2012 Sam Harwell, Tunnel Vision Laboratories LLC
 *  All rights reserved.
 *
 *  The source code of this document is proprietary work, and is not licensed for
 *  distribution. For information about licensing, contact Sam Harwell at:
 *      sam@tunnelvisionlabs.com
 */
package org.tvl.goworks.editor.go.fold;

import java.util.Collection;
import java.util.Collections;
import org.antlr.netbeans.editor.fold.AbstractFoldManagerParserTask;
import org.antlr.netbeans.parsing.spi.ParserData;
import org.antlr.netbeans.parsing.spi.ParserDataDefinition;
import org.antlr.netbeans.parsing.spi.ParserTask;
import org.antlr.netbeans.parsing.spi.ParserTaskDefinition;
import org.antlr.netbeans.parsing.spi.ParserTaskProvider;
import org.antlr.netbeans.parsing.spi.ParserTaskScheduler;
import org.antlr.netbeans.parsing.spi.SingletonParserTaskProvider;
import org.netbeans.api.editor.mimelookup.MimeRegistration;
import org.tvl.goworks.editor.GoEditorKit;
import org.tvl.goworks.editor.go.GoParserDataDefinitions;
import org.tvl.goworks.editor.go.parser.CompiledModel;

/**
 *
 * @author Sam Harwell
 */
public final class DeclarationFoldManagerParserTask extends AbstractFoldManagerParserTask<CompiledModel> {

    private final DeclarationFoldScanner declarationFoldScanner = new DeclarationFoldScanner();

    private DeclarationFoldManagerParserTask() {
        super(GoParserDataDefinitions.COMPILED_MODEL);
    }

    @Override
    public ParserTaskDefinition getDefinition() {
        return Definition.INSTANCE;
    }

    @Override
    protected Runnable getScanner(final ParserData<CompiledModel> model) {
        return new Runnable() {

            @Override
            public void run() {
                declarationFoldScanner.run(model);
            }

        };
    }

    private static final class Definition extends ParserTaskDefinition {
        private static final Collection<ParserDataDefinition<?>> INPUTS =
            Collections.<ParserDataDefinition<?>>singletonList(GoParserDataDefinitions.COMPILED_MODEL);
        private static final Collection<ParserDataDefinition<?>> OUTPUTS = Collections.emptyList();

        public static final Definition INSTANCE = new Definition();

        public Definition() {
            super("Go Code Folding", INPUTS, OUTPUTS, ParserTaskScheduler.INPUT_SENSITIVE_TASK_SCHEDULER);
        }
    }

    @MimeRegistration(mimeType=GoEditorKit.GO_MIME_TYPE, service=ParserTaskProvider.class)
    public static final class Provider extends SingletonParserTaskProvider {

        @Override
        public ParserTaskDefinition getDefinition() {
            return Definition.INSTANCE;
        }

        @Override
        public ParserTask createTaskImpl() {
            return new DeclarationFoldManagerParserTask();
        }

    }

}