/*
 * Copyright (c) 2007-2009, Osmorc Development Team
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright notice, this list
 *       of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright notice, this
 *       list of conditions and the following disclaimer in the documentation and/or other
 *       materials provided with the distribution.
 *     * Neither the name of 'Osmorc Development Team' nor the names of its contributors may be
 *       used to endorse or promote products derived from this software without specific
 *       prior written permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.osmorc.manifest.lang.valueparser.impl;

import com.intellij.lang.annotation.Annotation;
import com.intellij.lang.annotation.AnnotationHolder;
import com.intellij.openapi.util.TextRange;
import org.jetbrains.annotations.Nullable;
import org.osmorc.valueobject.Version;
import org.osmorc.valueobject.VersionRange;
import org.osmorc.manifest.lang.psi.HeaderValuePart;

/**
 * @author Robert F. Beeger (robert@beeger.net)
 */
public class VersionRangeParser extends AbstractValueParserImpl<VersionRange> {
    public VersionRangeParser(VersionParser versionParser) {
        _versionParser = versionParser;
    }

    protected VersionRange parseValue(
            @Nullable HeaderValuePart headerValuePart, String text, int start,
            @Nullable AnnotationHolder annotationHolder) {
        VersionRange.Boundary floorBoundary = null;
        Version floor = null;
        Version ceiling = null;
        VersionRange.Boundary ceilingBoundary = null;

        int nextStart = start;
        int nextEnd = nextStart + 1;

        if (text.charAt(nextStart) == '[' || text.charAt(nextStart) == '(') {
            if (annotationHolder != null) {
                annotationHolder.createErrorAnnotation(createTextRange(headerValuePart, nextStart, nextEnd),
                        "Version ranges have to be enclosed in double quotes.");
            }
            nextStart++;
        } else if (text.charAt(nextStart) == '\"') {
            nextStart++;
            while (Character.isWhitespace(text.charAt(nextStart))) {
                nextStart++;
            }
            if (text.charAt(nextStart) == '[') {
                floorBoundary = VersionRange.Boundary.INCLUSIVE;
            } else if (text.charAt(nextStart) == '(') {
                floorBoundary = VersionRange.Boundary.EXCLUSIVE;
            } else {
                nextEnd = nextStart + 1;
                while (!Character.isDigit(text.charAt(nextEnd))) {
                    nextEnd++;
                }
                if (annotationHolder != null) {
                    Annotation annotation = annotationHolder.createErrorAnnotation(
                            createTextRange(headerValuePart, nextStart, nextEnd), "Invalid boundary definition");
//          annotation.registerFix();
                }
            }
        }

        nextEnd = text.indexOf(',');

        return null;
    }

    private TextRange createTextRange(HeaderValuePart headerValuePart, int startInValue, int endInValue) {
        int headerValueStartOffset = headerValuePart.getTextRange().getStartOffset();
        return new TextRange(headerValueStartOffset + startInValue, headerValueStartOffset + endInValue);
    }

    private final VersionParser _versionParser;
}