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/*
 * Copyright 2015 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.testable;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;

/**
 * @author [email protected] (Marcio Endo)
 */
class TestMap {

  private final Map, Test> map = new LinkedHashMap<>();

  private TestMap() {
    put(Iterable.class, IterableEquality::of);
    put(Optional.class, OptionalEquality::of);
    put(Testable.class, TestableEquality::of);
  }

  public static TestMap of() {
    return new TestMap();
  }

  public Test get(Class type) {
    Test test = this::defaultValue;

    for (Map.Entry, Test> entry : map.entrySet()) {
      Class key = entry.getKey();
      if (key.isAssignableFrom(type)) {
        test = entry.getValue();
        break;
      }
    }

    return test;
  }

  public  void put(Class type, Test test) {
    Objects.requireNonNull(type);
    Objects.requireNonNull(test);
    map.put(type, test);
  }

  private Equality defaultValue(String name, Object a, Object b) {
    return Objects.equals(a, b)
        ? Equality.equal()
        : Equality.notEqual(name, Objects.toString(a), Objects.toString(b));
  }

}