/*
 * Copyright 2014 - Present Rafael Winterhalter
 *
 * 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 net.bytebuddy.matcher;

import net.bytebuddy.build.HashCodeAndEqualsPlugin;
import net.bytebuddy.description.type.TypeDefinition;
import net.bytebuddy.description.type.TypeDescription;

import java.util.ArrayList;
import java.util.List;

/**
 * An element matcher that matches a collection of types by their erasures.
 *
 * @param <T> The type of the matched entity.
 */
@HashCodeAndEqualsPlugin.Enhance
public class CollectionErasureMatcher<T extends Iterable<? extends TypeDefinition>> extends ElementMatcher.Junction.ForNonNullValues<T> {

    /**
     * The matcher to be applied to the raw types.
     */
    private final ElementMatcher<? super Iterable<? extends TypeDescription>> matcher;

    /**
     * Creates a new raw type matcher.
     *
     * @param matcher The matcher to be applied to the raw types.
     */
    public CollectionErasureMatcher(ElementMatcher<? super Iterable<? extends TypeDescription>> matcher) {
        this.matcher = matcher;
    }

    /**
     * {@inheritDoc}
     */
    protected boolean doMatch(T target) {
        List<TypeDescription> typeDescriptions = new ArrayList<TypeDescription>();
        for (TypeDefinition typeDefinition : target) {
            typeDescriptions.add(typeDefinition.asErasure());
        }
        return matcher.matches(typeDescriptions);
    }

    @Override
    public String toString() {
        return "erasures(" + matcher + ')';
    }
}
