/*
 * ModeShape (http://www.modeshape.org)
 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * See the AUTHORS.txt file in the distribution for a full listing of 
 * individual contributors. 
 *
 * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
 * is licensed to you under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * ModeShape is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.modeshape.graph.property.basic;

import static org.hamcrest.core.AllOf.allOf;
import static org.hamcrest.core.IsEqual.equalTo;
import java.util.ArrayList;
import java.util.Collection;
import org.hamcrest.Description;
import org.hamcrest.Factory;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;
import org.modeshape.graph.property.Path;
import org.modeshape.graph.property.Path.Segment;
import org.modeshape.graph.property.PathFactory;

/**
 * @author Randall Hauch
 */
public class IsPathContaining extends TypeSafeMatcher<Iterable<Segment>> {

    private final Matcher<? super Segment> elementMatcher;

    public IsPathContaining( Matcher<? super Segment> elementMatcher ) {
        this.elementMatcher = elementMatcher;
    }

    @Override
    public boolean matchesSafely( Iterable<Segment> collection ) {
        for (Segment item : collection) {
            if (elementMatcher.matches(item)) {
                return true;
            }
        }
        return false;
    }

    public void describeTo( Description description ) {
        description.appendText("a path containing ").appendDescriptionOf(elementMatcher);
    }

    @Factory
    public static Matcher<Iterable<Segment>> hasSegment( Matcher<? super Segment> elementMatcher ) {
        return new IsPathContaining(elementMatcher);
    }

    @Factory
    public static Matcher<Iterable<Segment>> hasSegment( Segment element ) {
        return hasSegment(equalTo(element));
    }

    @Factory
    public static Matcher<Iterable<Segment>> hasSegments( Matcher<Path.Segment>... elementMatchers ) {
        Collection<Matcher<? extends Iterable<Path.Segment>>> all = new ArrayList<Matcher<? extends Iterable<Path.Segment>>>(
                                                                                                                             elementMatchers.length);

        for (Matcher<Path.Segment> elementMatcher : elementMatchers) {
            Matcher<Iterable<Path.Segment>> itemMatcher = hasSegment(elementMatcher);
            all.add(itemMatcher);
        }

        return allOf(all);
    }

    @Factory
    public static Matcher<Iterable<Segment>> hasSegments( Segment... elements ) {
        Collection<Matcher<? extends Iterable<Segment>>> all = new ArrayList<Matcher<? extends Iterable<Segment>>>(
                                                                                                                   elements.length);
        for (Segment element : elements) {
            all.add(hasSegment(element));
        }
        return allOf(all);
    }

    @Factory
    public static Matcher<Iterable<Segment>> hasSegment( PathFactory pathFactory,
                                                         String element ) {
        Path.Segment segment = pathFactory.createSegment(element);
        return hasSegment(equalTo(segment));
    }

    @Factory
    public static Matcher<Iterable<Segment>> hasSegments( PathFactory pathFactory,
                                                          String... segments ) {
        Collection<Matcher<? extends Iterable<Segment>>> all = new ArrayList<Matcher<? extends Iterable<Segment>>>(
                                                                                                                   segments.length);
        for (String element : segments) {
            all.add(hasSegment(pathFactory, element));
        }
        return allOf(all);
    }
}
