/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.sling.resource.filter;

import static org.junit.Assert.assertEquals;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.sling.api.resource.Resource;
import org.apache.sling.resource.filter.impl.ResourcePredicateImpl;
import org.apache.sling.resource.filter.impl.script.ParseException;
import org.apache.sling.testing.mock.sling.junit.SlingContext;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

public class ResourceFilterDateTest {

    @Rule
    public final SlingContext context = new SlingContext();

    private Resource resource;
    
    ResourcePredicates resourceFilter = new ResourcePredicateImpl();

    private static String START_PATH = "/content/sample/en";

    @Before
    public void setUp() throws ParseException, java.text.ParseException {
        context.load().json("/data.json", "/content/sample/en");
        resource = context.resourceResolver().getResource(START_PATH);
    }

    @Test
    public void testPropLessThanDateFunction() {
        String query = "[jcr:content/created] < date('2013-08-08T16:32:59.000+02:00')";
        List<Resource> found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] < 2013-08-08T16:32:59.000";
        found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] < 2013-08-08T16:32";
        found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] < date('2013-08-08','yyyy-MM-dd')";
        found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] less than 2013-08-07T14:32:59";
        found = handle(START_PATH, query);
        assertEquals(2, found.size());

        query = "[jcr:content/created] <= 2013-08-07T14:32:59";
        found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] <= 2013-08-07T14:32";
        found = handle(START_PATH, query);
        assertEquals(2, found.size());

        query = "[jcr:content/created] < 2013-08-07T14:32:59.010";
        found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] > 2013-08-07T14:32";
        found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] greater than 2013-08-07T14:32:59";
        found = handle(START_PATH, query);
        assertEquals(2, found.size());

        query = "[jcr:content/created] >= 2013-08-07T14:32:59";
        found = handle(START_PATH, query);
        assertEquals(3, found.size());

        query = "[jcr:content/created] like '2013-08-07.*'";
        found = handle(START_PATH, query);
        assertEquals(1, found.size());

        query = "[jcr:content/created] like '201[2-5].*'";
        found = handle(START_PATH, query);
        assertEquals(4, found.size());
    }

    private List<Resource> handle(String path, String filter) {
        return new ResourceStream(resource).stream(r -> true).filter(resourceFilter.parse(filter))
                .collect(Collectors.toList());
    }
}