/*
 * Copyright (c) 2019 Oracle and/or its affiliates. All rights reserved.
 *
 * 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 io.helidon.microprofile.faulttolerance;

import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Set;

import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.literal.NamedLiteral;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.Unmanaged;

import static java.util.Collections.emptySet;
import static java.util.Collections.singleton;

class SyntheticBean<T> implements Bean<T> {
    final Class<T> type;

    SyntheticBean(Class<T> type) {
        this.type = type;
    }

    @Override
    public T create(CreationalContext<T> creationalContext) {
        return new Unmanaged<>(type)
                .newInstance()
                .produce()
                .inject()
                .postConstruct()
                .get();
    }

    @Override
    public void destroy(T instance, CreationalContext<T> creationalContext) {
    }

    @Override
    public Set<Type> getTypes() {
        return singleton(type);
    }

    @Override
    public Set<Annotation> getQualifiers() {
        return singleton(NamedLiteral.of(type.getSimpleName()));
    }

    @Override
    public Class<? extends Annotation> getScope() {
        return Dependent.class;
    }

    @Override
    public String getName() {
        return type.getName();
    }

    @Override
    public Set<Class<? extends Annotation>> getStereotypes() {
        return emptySet();
    }

    @Override
    public boolean isAlternative() {
        return false;
    }

    @Override
    public Class<?> getBeanClass() {
        return type;
    }

    @Override
    public Set<InjectionPoint> getInjectionPoints() {
        return emptySet();
    }

    @Override
    public boolean isNullable() {
        return false;
    }

}
