package com.acme;

import java.util.logging.Logger;
import javax.swing.text.BadLocationException;
import org.netbeans.api.editor.mimelookup.MimeRegistration;
import org.netbeans.api.java.lexer.JavaTokenId;
import org.netbeans.api.lexer.InputAttributes;
import org.netbeans.api.lexer.Language;
import org.netbeans.api.lexer.LanguagePath;
import org.netbeans.api.lexer.Token;
import org.netbeans.api.lexer.TokenUtilities;
import org.netbeans.modules.editor.indent.spi.Context;
import org.netbeans.modules.editor.indent.spi.ExtraLock;
import org.netbeans.modules.editor.indent.spi.IndentTask;
import org.netbeans.modules.editor.indent.spi.ReformatTask;
import org.netbeans.spi.lexer.LanguageEmbedding;
import org.netbeans.spi.lexer.LanguageProvider;
import org.openide.util.lookup.ServiceProvider;

@ServiceProvider(service = LanguageProvider.class)
public class EmbeddedTest extends LanguageProvider {

    @Override
    public Language<?> findLanguage(String mimeType) {
        return null;
    }

    @Override
    public LanguageEmbedding<?> findLanguageEmbedding(Token<?> token, LanguagePath languagePath, InputAttributes inputAttributes) {
        if(token == null){
            return null;
        }
        if(token.text() == null) {
            return null;
        }
        Logger.getLogger("EmbeddedTest").info("token: " + token.text());
        if (token.id() == JavaTokenId.BLOCK_COMMENT
                && TokenUtilities.startsWith(token.text(), "/*xxx")
                && TokenUtilities.endsWith(token.text(), "*/")) {
            Logger.getLogger("EmbeddedTest").info("returning embedded language.");
            return LanguageEmbedding.create(JavaTokenId.language(), 5, 2);
        }
        return null;
    }

    @MimeRegistration(mimeType = "text/x-java/text/x-java", service = IndentTask.Factory.class)
    public static class IndentTest implements IndentTask.Factory {

        @Override
        public IndentTask createTask(Context context) {
            Logger.getLogger("EmbeddedTest").info("returning neutral indent task.");
            return new IndentTask() {

                @Override
                public void reindent() throws BadLocationException {
                }

                @Override
                public ExtraLock indentLock() {
                    return null;
                }
            };
        }

    }

    @MimeRegistration(mimeType = "text/x-java/text/x-java", service = ReformatTask.Factory.class)
    public static class ReformatTest implements ReformatTask.Factory {

        @Override
        public ReformatTask createTask(Context context) {
            Logger.getLogger("EmbeddedTest").info("returning neutral reformat task.");
            return new ReformatTask() {

                @Override
                public void reformat() throws BadLocationException {
                }

                @Override
                public ExtraLock reformatLock() {
                    return null;
                }
            };
        }

    }

}