/*
 * Copyright 2005-2011 the original author or authors.
 * 
 * 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.wamblee.xmlrouter.impl;

import static junit.framework.Assert.*;

import java.util.List;

import org.junit.Test;
import org.wamblee.xmlrouter.common.Id;
import org.wamblee.xmlrouter.config.Config;
import org.wamblee.xmlrouter.config.ConfigException;
import org.wamblee.xmlrouter.config.Identifiable;

public class CompositeConfigTest {

    public static class IntClass implements Identifiable<IntClass> {

        private int value;

        public IntClass(int aValue) {
            value = aValue;
        }

        @Override
        public Id<IntClass> getId() {
            return new Id<IntClass>(value + "");
        }

        @Override
        public int hashCode() {
            return ((Integer) value).hashCode();
        }

        @Override
        public boolean equals(Object aObj) {
            if (aObj == null) {
                return false;
            }
            if (!(aObj instanceof IntClass)) {
                return false;
            }
            IntClass obj = (IntClass) aObj;
            return value == obj.value;
        }
    }

    @Test
    public void testEmptyConfig() {
        Config<IntClass> composite = composite("c");
        assertEquals(id("c"), composite.getId());
        assertTrue(composite.values().isEmpty());
    }

    @Test(expected = RuntimeException.class)
    public void testAddNotAllowed() {
        composite("c").add(new IntClass(10));
    }

    @Test(expected = RuntimeException.class)
    public void testRemoveNotAllowed() {
        composite("c").remove(new Id<IntClass>("xxx"));
    }

    @Test
    public void testAddConfig() {
        CompositeConfig<IntClass> composite = composite("c");
        Config<IntClass> c1 = new ConfigImpl(id("c1")) {
            @Override
            public Identifiable wrap(String aPrefix, Identifiable aT) {
                return aT;
            }
        };
        Config<IntClass> c2 = new ConfigImpl(id("c2")) {
            @Override
            public Identifiable wrap(String aPrefix, Identifiable aT) {
                return aT;
            }
        };

        IntClass i1 = new IntClass(10);
        IntClass i2 = new IntClass(20);
        IntClass i3 = new IntClass(30);
        IntClass i4 = new IntClass(40);

        c1.add(i1);
        c1.add(i2);
        c2.add(i3);
        c2.add(i4);

        composite.addConfig(c1);
        List<IntClass> values = composite.values();
        assertEquals(2, values.size());
        assertTrue(values.contains(i1));
        assertTrue(values.contains(i2));

        composite.addConfig(c2);
        values = composite.values();
        assertEquals(4, values.size());
        assertTrue(values.contains(i1));
        assertTrue(values.contains(i2));
        assertTrue(values.contains(i3));
        assertTrue(values.contains(i4));
    }

    @Test(expected = ConfigException.class)
    public void testDuplicatesNotAllowed() {
        CompositeConfig<IntClass> composite = composite("c");
        Config<IntClass> c1 = new ConfigImpl(id("c1")) {
            @Override
            public Identifiable wrap(String aPrefix, Identifiable aT) {
                return aT;
            }
        };
        Config<IntClass> c2 = new ConfigImpl(id("c1")) {
            @Override
            public Identifiable wrap(String aPrefix, Identifiable aT) {
                return aT;
            }
        };
        composite.addConfig(c1);
        composite.addConfig(c2);
    }

    @Test
    public void testDuplicateItem() {
        CompositeConfig<IntClass> composite = composite("c");
        Config<IntClass> c1 = new ConfigImpl(id("c1")) {
            @Override
            public Identifiable wrap(String aPrefix, Identifiable aT) {
                return aT;
            }
        };
        Config<IntClass> c2 = new ConfigImpl(id("c2")) {
            @Override
            public Identifiable wrap(String aPrefix, Identifiable aT) {
                return aT;
            }
        };

        IntClass i1 = new IntClass(10);
        IntClass i2 = new IntClass(10);
        c1.add(i1);
        c2.add(i2);
        composite.addConfig(c1);
        try {
            composite.addConfig(c2);
            fail();
        } catch (ConfigException e) {
            // ok.
        }
        assertEquals(1, composite.values().size());
        assertTrue(composite.values().contains(i1));
    }

    private CompositeConfig<IntClass> composite(String aId) {
        return new CompositeConfig<IntClass>(id(aId));
    }

    private Id<Config> id(String aId) {
        return new Id<Config>(aId);
    }
}