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package com.sun.tools.ide.analysis.modernize.impl;

import com.sun.tools.ide.analysis.modernize.impl.ModernizeAnalyzerImpl.ModernizeResponse;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Optional;

import java.util.stream.Collectors;

import org.netbeans.modules.cnd.analysis.api.AnalyzerResponse;

import org.netbeans.spi.editor.hints.ErrorDescription;

import org.openide.filesystems.FileObject;

/**

 *

 * @author Ilia Gromov

 */

public class AnalyzerResponseMerger {

    private static class ErrorDesc {

        final ModernizeErrorInfo info;

        final FileObject fo;

        public ErrorDesc(ModernizeErrorInfo info, FileObject fo) {

            this.info = info;

            this.fo = fo;

        }

        public boolean isSame(ErrorDesc o2) {

            return isSame(this.info, o2.info) && this.fo.equals(o2.fo);

        }

        public boolean isSame(ModernizeErrorInfo o1, ModernizeErrorInfo o2) {

            return o1.getStartOffset() == o2.getStartOffset()

                    && o1.getEndOffset() == o2.getEndOffset()

                    && o1.getDiagnostics().getCheckName().equals(o2.getDiagnostics().getCheckName());

        }

    }

    private final List<ErrorDesc> errors = new ArrayList<>();

    private final ModernizeResponse delegate;

    public AnalyzerResponseMerger(ModernizeResponse delegate) {

        this.delegate = delegate;

    }

    public void addError(ModernizeErrorInfo info, FileObject fo) {

        ErrorDesc errorDesc = new ErrorDesc(info, fo);

        Optional<ErrorDesc> found = errors.stream()

                .filter(o1 -> o1.isSame(errorDesc))

                .findAny();

        if (found.isPresent()) {

            found.get().info.addMessageInfixes(errorDesc.info.getMessageInfixes());

        } else {

            errors.add(errorDesc);

        }

    }

    public List<ErrorDescription> done() {

        return errors.stream()

                .map(error -> delegate.addErrorImpl(error.info, error.fo))

                .collect(Collectors.toList());

    }

}