/*
 * 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.eclipse.aether.internal.impl;

import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ThreadFactory;

import org.eclipse.aether.ConfigurationProperties;
import org.junit.Test;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;

public class PrioritizedComponentsTest {

    @Test
    public void testGetConfigKeys() {
        String[] keys = {
            ConfigurationProperties.PREFIX_PRIORITY + "java.lang.String",
            ConfigurationProperties.PREFIX_PRIORITY + "String"
        };
        assertArrayEquals(keys, PrioritizedComponents.getConfigKeys(String.class));

        keys = new String[] {
            ConfigurationProperties.PREFIX_PRIORITY + "java.util.concurrent.ThreadFactory",
            ConfigurationProperties.PREFIX_PRIORITY + "ThreadFactory",
            ConfigurationProperties.PREFIX_PRIORITY + "Thread"
        };
        assertArrayEquals(keys, PrioritizedComponents.getConfigKeys(ThreadFactory.class));
    }

    @Test
    public void testAddPriorityOverride() {
        Exception comp1 = new IllegalArgumentException();
        Exception comp2 = new NullPointerException();
        Map<Object, Object> config = new HashMap<>();
        config.put(ConfigurationProperties.PREFIX_PRIORITY + comp1.getClass().getName(), 6);
        config.put(ConfigurationProperties.PREFIX_PRIORITY + comp2.getClass().getName(), 7);
        PrioritizedComponents<Exception> components = new PrioritizedComponents<>(config);
        components.add(comp1, 1);
        components.add(comp2, 0);
        List<PrioritizedComponent<Exception>> sorted = components.getEnabled();
        assertEquals(2, sorted.size());
        assertSame(comp2, sorted.get(0).getComponent());
        assertEquals(7, sorted.get(0).getPriority(), 0.1f);
        assertSame(comp1, sorted.get(1).getComponent());
        assertEquals(6, sorted.get(1).getPriority(), 0.1f);
    }

    @Test
    public void testAddImplicitPriority() {
        Exception comp1 = new IllegalArgumentException();
        Exception comp2 = new NullPointerException();
        Map<Object, Object> config = new HashMap<>();
        config.put(ConfigurationProperties.IMPLICIT_PRIORITIES, true);
        PrioritizedComponents<Exception> components = new PrioritizedComponents<>(config);
        components.add(comp1, 1);
        components.add(comp2, 2);
        List<PrioritizedComponent<Exception>> sorted = components.getEnabled();
        assertEquals(2, sorted.size());
        assertSame(comp1, sorted.get(0).getComponent());
        assertSame(comp2, sorted.get(1).getComponent());
    }

    @Test
    public void testAddDisabled() {
        Exception comp1 = new IllegalArgumentException();
        Exception comp2 = new NullPointerException();
        Map<Object, Object> config = new HashMap<>();
        PrioritizedComponents<Exception> components = new PrioritizedComponents<>(config);

        components.add(new UnsupportedOperationException(), Float.NaN);
        List<PrioritizedComponent<Exception>> sorted = components.getEnabled();
        assertEquals(0, sorted.size());

        components.add(comp1, 1);
        sorted = components.getEnabled();
        assertEquals(1, sorted.size());
        assertSame(comp1, sorted.get(0).getComponent());

        components.add(new Exception(), Float.NaN);
        sorted = components.getEnabled();
        assertEquals(1, sorted.size());
        assertSame(comp1, sorted.get(0).getComponent());

        components.add(comp2, 0);
        sorted = components.getEnabled();
        assertEquals(2, sorted.size());
        assertSame(comp1, sorted.get(0).getComponent());
        assertSame(comp2, sorted.get(1).getComponent());
    }

    @Test
    public void testList() {
        Exception comp1 = new IllegalArgumentException();
        Exception comp2 = new NullPointerException();

        PrioritizedComponents<Exception> components = new PrioritizedComponents<>(Collections.emptyMap());
        components.add(comp1, 1);
        components.add(comp2, 0);

        StringBuilder stringBuilder = new StringBuilder();
        components.list(stringBuilder);

        assertEquals("IllegalArgumentException, NullPointerException", stringBuilder.toString());
    }
}
