/*
 * 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.ArrayList;
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 interface StringClassInterface extends
        Identifiable<StringClassInterface> {

    }

    public static class StringClass implements StringClassInterface {

        private String value;

        public StringClass(String aValue) {
            value = aValue;
        }

        public StringClass(int aValue) {
            this(aValue + "");
        }

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

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

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

    @Test
    public void testEmptyConfig() {
        Config<StringClassInterface> composite = composite();
        assertTrue(composite.values().isEmpty());
    }

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

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

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

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

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

        composite.addConfig(c1);
        List<StringClassInterface> values = composite.values();
        List<String> ids = new ArrayList<String>();
        for (StringClassInterface intf : values) {
            ids.add(intf.getId().getId());
        }
        assertTrue(ids.contains("c1.10"));
        assertTrue(ids.contains("c1.20"));

        composite.addConfig(c2);
        values = composite.values();
        assertEquals(4, values.size());

        ids = new ArrayList<String>();
        for (StringClassInterface intf : values) {
            ids.add(intf.getId().getId());
        }
        assertTrue(ids.contains("c1.10"));
        assertTrue(ids.contains("c1.20"));
        assertTrue(ids.contains("c2.30"));
        assertTrue(ids.contains("c2.40"));
    }

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

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

        StringClass i1 = new StringClass("y");
        StringClass i2 = new StringClass("x.y");
        c1.add(i1);
        c2.add(i2);
        composite.addConfig(c1);
        try {
            composite.addConfig(c2);
            fail();
        } catch (ConfigException e) {
            // ok.
        }
        assertEquals(1, composite.values().size());
        assertEquals("c.x.y", composite.values().iterator().next().getId()
            .getId());
    }

    private CompositeConfig<StringClassInterface> composite() {
        return new CompositeConfig<StringClassInterface>(
            StringClassInterface.class);
    }

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