package csc375.httpquickstart;

import akka.NotUsed;
import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.http.javadsl.ConnectHttp;
import akka.http.javadsl.Http;
import akka.http.javadsl.ServerBinding;
import akka.http.javadsl.model.HttpRequest;
import akka.http.javadsl.model.HttpResponse;
import akka.http.javadsl.server.AllDirectives;
import akka.http.javadsl.server.Route;
import akka.stream.ActorMaterializer;
import akka.stream.javadsl.Flow;
import java.util.concurrent.CompletionStage;

// #main-class
public class QuickstartServer extends AllDirectives {

  // set up ActorSystem and other dependencies here
  private final UserRoutes userRoutes;

  public QuickstartServer(ActorSystem system, ActorRef userRegistryActor) {
    userRoutes = new UserRoutes(system, userRegistryActor);
  }

  //#main-class

  public static void main(String[] args) throws Exception {
        //#server-bootstrapping
        // boot up server using the route as defined below
        ActorSystem system = ActorSystem.create("helloAkkaHttpServer");

        final Http http = Http.get(system);
        final ActorMaterializer materializer = ActorMaterializer.create(system);
        //#server-bootstrapping

        ActorRef userRegistryActor = system.actorOf(UserRegistryActor.props(), "userRegistryActor");

        //#http-server
        //In order to access all directives we need an instance where the routes are define.
        QuickstartServer app = new QuickstartServer(system, userRegistryActor);

        final Flow<HttpRequest, HttpResponse, NotUsed> routeFlow = app.createRoute().flow(system, materializer);
        final CompletionStage<ServerBinding> binding = http.bindAndHandle(routeFlow,
                ConnectHttp.toHost("localhost", 8080), materializer);

        System.out.println("Server online at http://localhost:8080/\nPress RETURN to stop...");
        System.in.read(); // let it run until user presses return

        binding
                .thenCompose(ServerBinding::unbind) // trigger unbinding from the port
                .thenAccept(unbound -> system.terminate()); // and shutdown when done
        //#http-server
    }

  //#main-class
  /**
   * Here you can define all the different routes you want to have served by this web server
   * Note that routes might be defined in separated classes like the current case
   */
  protected Route createRoute() {
    return userRoutes.routes();
  }
}
//#main-class