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package org.glassfish.jersey.client.rx.rxjava;

import java.util.concurrent.ExecutorService;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.WebTarget;

import org.glassfish.jersey.client.rx.Rx;
import org.glassfish.jersey.client.rx.RxClient;
import org.glassfish.jersey.client.rx.RxWebTarget;

/**
 * Main entry point to the Reactive Client API used to bootstrap {@link org.glassfish.jersey.client.rx.RxClient reactive client}
 * or {@link org.glassfish.jersey.client.rx.RxWebTarget reactive client target} instances based on RxJava's
 * {@link rx.Observable observable}.
 *
 * @author Michal Gajdos (michal.gajdos at oracle.com)
 * @see org.glassfish.jersey.client.rx.Rx
 * @since 2.13
 */
public final class RxObservable {

    /**
     * Create a new {@link org.glassfish.jersey.client.rx.RxClient reactive client} instance parametrized with invoker based on
     * the {@link rx.Observable observable} from RxJava. Reactive requests, invoked using
     * {@link org.glassfish.jersey.client.rx.RxInvocationBuilder#rx() rx(...)} methods, do not operate by default on a particular
     * {@link rx.Scheduler}.
     * <p/>
     * Instance is initialized with a JAX-RS client created using the default client builder implementation class provided by the
     * JAX-RS implementation provider.
     *
     * @return new reactive client extension.
     * @see Rx#newClient(Class)
     */
    public static RxClient<RxObservableInvoker> newClient() {
        return Rx.newClient(RxObservableInvoker.class);
    }

    /**
     * Create a new {@link org.glassfish.jersey.client.rx.RxClient reactive client} instance parametrized with invoker based on
     * the {@link rx.Observable observable} from RxJava. Reactive requests, invoked using
     * {@link org.glassfish.jersey.client.rx.RxInvocationBuilder#rx() rx(...)}, operate on a {@link rx.Scheduler} initialized with
     * provided {@link java.util.concurrent.ExecutorService executor service}.
     * <p/>
     * Instance is initialized with a JAX-RS client created using the default client builder implementation class provided by the
     * JAX-RS implementation provider.
     *
     * @param executorService the executor service to execute reactive requests.
     * @return new reactive client extension.
     * @see Rx#newClient(Class)
     */
    public static RxClient<RxObservableInvoker> newClient(final ExecutorService executorService) {
        return Rx.newClient(RxObservableInvoker.class, executorService);
    }

    /**
     * Create a new {@link org.glassfish.jersey.client.rx.RxClient reactive client} instance initialized with given JAX-RS client
     * instance and parametrized with invoker based on the {@link rx.Observable observable} from RxJava. Reactive requests,
     * invoked using {@link org.glassfish.jersey.client.rx.RxInvocationBuilder#rx() rx(...)} methods,
     * do not operate by default on a particular {@link rx.Scheduler}.
     *
     * @param client the JAX-RS client used to initialize new reactive client extension.
     * @return new reactive client extension.
     * @see Rx#from(javax.ws.rs.client.Client, Class)
     */
    public static RxClient<RxObservableInvoker> from(final Client client) {
        return Rx.from(client, RxObservableInvoker.class);
    }

    /**
     * Create a new {@link org.glassfish.jersey.client.rx.RxClient reactive client} instance initialized with given JAX-RS client
     * instance and parametrized with invoker based on the {@link rx.Observable observable} from RxJava. Reactive requests,
     * invoked using {@link org.glassfish.jersey.client.rx.RxInvocationBuilder#rx() rx(...)}, operate on a {@link rx.Scheduler}
     * initialized with provided {@link java.util.concurrent.ExecutorService executor service}.
     *
     * @param client the JAX-RS client used to initialize new reactive client extension.
     * @param executorService the executor service to execute reactive requests.
     * @return new reactive client extension.
     * @see Rx#from(javax.ws.rs.client.Client, Class)
     */
    public static RxClient<RxObservableInvoker> from(final Client client, final ExecutorService executorService) {
        return Rx.from(client, RxObservableInvoker.class, executorService);
    }

    /**
     * Create a new {@link org.glassfish.jersey.client.rx.RxWebTarget reactive client target} instance initialized with given
     * JAX-RS client web target instance and parametrized with invoker based on the {@link rx.Observable observable} from RxJava.
     * Reactive requests, invoked using {@link org.glassfish.jersey.client.rx.RxInvocationBuilder#rx() rx(...)} methods, do not
     * operate by default on a particular {@link rx.Scheduler}.
     *
     * @param target the JAX-RS client target used to initialize new reactive client target extension.
     * @return new reactive client target extension.
     * @see Rx#from(javax.ws.rs.client.WebTarget, Class)
     */
    public static RxWebTarget<RxObservableInvoker> from(final WebTarget target) {
        return Rx.from(target, RxObservableInvoker.class);
    }

    /**
     * Create a new {@link org.glassfish.jersey.client.rx.RxWebTarget reactive client target} instance initialized with given
     * JAX-RS client web target instance and parametrized with invoker based on the {@link rx.Observable observable} from RxJava.
     * Reactive requests, invoked using {@link org.glassfish.jersey.client.rx.RxInvocationBuilder#rx() rx(...)}, operate on a
     * {@link rx.Scheduler} initialized with provided {@link java.util.concurrent.ExecutorService executor service}.
     *
     * @param target the JAX-RS client target used to initialize new reactive client target extension.
     * @param executorService the executor service to execute reactive requests.
     * @return new reactive client target extension.
     * @see Rx#from(javax.ws.rs.client.WebTarget, Class)
     */
    public static RxWebTarget<RxObservableInvoker> from(final WebTarget target, final ExecutorService executorService) {
        return Rx.from(target, RxObservableInvoker.class, executorService);
    }

    /**
     * Prevent instantiation.
     */
    private RxObservable() {
        throw new AssertionError("No instances allowed.");
    }
}
