/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.tamaya.spisupport.propertysource;

import org.apache.tamaya.spi.PropertySource;
import org.apache.tamaya.spi.PropertyValue;
import org.apache.tamaya.spisupport.PropertySourceComparator;
import org.junit.Test;

import java.util.*;

import static org.assertj.core.api.Assertions.assertThat;

public class BasePropertySourceTest {

    @Test
    public void isAlwaysScanable() {
        BasePropertySource bs = new EmptyPropertySource();

        assertThat(bs.isScannable()).isTrue();
    }

    @Test
    public void givenOrdinalOverwritesGivenDefaulOrdinal() {
        BasePropertySource bs = new EmptyPropertySource();

        bs.setDefaultOrdinal(10);

        assertThat(bs.getDefaultOrdinal()).isEqualTo(10);
        assertThat(bs.getOrdinal()).isEqualTo(10);

        bs.setOrdinal(20);

        assertThat(bs.getOrdinal()).isEqualTo(20);
    }

    @Test
    public void testGetOrdinal() {

        PropertySource defaultPropertySource = new BasePropertySource(56) {

            @Override
            public String getName() {
                return "testWithDefault";
            }

            @Override
            public PropertyValue get(String key) {
                return null;
            }

            @Override
            public Map<String, PropertyValue> getProperties() {
                return Collections.emptyMap();
            }
        };

        assertThat(PropertySourceComparator.getOrdinal(defaultPropertySource)).isEqualTo(56);
        assertThat(new OverriddenOrdinalPropertySource().getOrdinal()).isEqualTo(1000);

        // propertySource with invalid ordinal
        assertThat(new OverriddenInvalidOrdinalPropertySource().getOrdinal()).isEqualTo(1);
    }

    @Test
    public void testGet() {
        assertThat(new OverriddenOrdinalPropertySource().getOrdinal()).isEqualTo(1000);
    }

    @Test
    public void testEqualsAndHashAndToStringValues() {
        BasePropertySource bs1 = new EmptyPropertySource();
        bs1.setName("testEqualsName");
        BasePropertySource bs2 = new EmptyPropertySource();
        bs2.setName("testEqualsName");
        BasePropertySource bs3 = new EmptyPropertySource();
        bs3.setName("testNotEqualsName");

        assertThat(bs1).isEqualTo(bs1);
        assertThat(bs1).isNotEqualTo(null);
        assertThat("aString").isNotEqualTo(bs1);
        assertThat(bs2).isEqualTo(bs1);
        assertThat(bs1).isNotEqualTo(bs3);
        assertThat(bs2.hashCode()).isEqualTo(bs1.hashCode());
        assertThat(bs1.hashCode()).isNotEqualTo(bs3.hashCode());
        assertThat(bs1.toStringValues()).contains("name='testEqualsName'");
    }

    private class EmptyPropertySource extends BasePropertySource {

        @Override
        public Map<String, PropertyValue> getProperties() {
            return Collections.emptyMap();
        }
    }

    private static class OverriddenOrdinalPropertySource extends BasePropertySource {

        private OverriddenOrdinalPropertySource() {
            super(250);
        }

        @Override
        public String getName() {
            return "overriddenOrdinal";
        }

        @Override
        public Map<String, PropertyValue> getProperties() {
            Map<String, PropertyValue> result = new HashMap<>(1);
            result.put(PropertySource.TAMAYA_ORDINAL, PropertyValue.createValue(PropertySource.TAMAYA_ORDINAL, "1000")
                    .setMeta("source", getName()));
            return result;
        }
    }

    private static class OverriddenInvalidOrdinalPropertySource extends BasePropertySource {

        private OverriddenInvalidOrdinalPropertySource() {
            super(1);
        }

        @Override
        public String getName() {
            return "overriddenInvalidOrdinal";
        }

        @Override
        public Map<String, PropertyValue> getProperties() {
            Map<String, PropertyValue> result = new HashMap<>(1);
            result.put(PropertySource.TAMAYA_ORDINAL, PropertyValue.createValue(PropertySource.TAMAYA_ORDINAL, "invalid")
                    .setMeta("source", getName()));
            return result;
        }
    }

}