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/**
 * Copyright (c) 2013-2021 Nikita Koksharov
 *
 * 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 com.github.lontime.shaded.org.redisson.rx;

import io.reactivex.rxjava3.core.Completable;
import io.reactivex.rxjava3.core.Flowable;
import io.reactivex.rxjava3.core.Single;
import com.github.lontime.shaded.org.redisson.api.RFuture;
import com.github.lontime.shaded.org.redisson.misc.ProxyBuilder;
import com.github.lontime.shaded.org.redisson.misc.ProxyBuilder.Callback;

import java.lang.reflect.Method;

/**
 * 
 * @author Nikita Koksharov
 *
 */
public class RxProxyBuilder {

    public static  T create(CommandRxExecutor commandExecutor, Object instance, Class clazz) {
        return create(commandExecutor, instance, null, clazz);
    }
    
    public static  T create(CommandRxExecutor commandExecutor, Object instance, Object implementation, Class clazz) {
        return ProxyBuilder.create(new Callback() {
            @Override
            public Object execute(Method mm, Object instance, Method instanceMethod, Object[] args) {
                Flowable flowable = commandExecutor.flowable(() -> ((RFuture) mm.invoke(instance, args)).toCompletableFuture());
                
                if (instanceMethod.getReturnType() == Completable.class) {
                    return flowable.ignoreElements();
                }
                if (instanceMethod.getReturnType() == Single.class) {
                    return flowable.singleOrError();
                }
                return flowable.singleElement();
            }
        }, instance, implementation, clazz);
    }
    
}