com.github.ithildir.numbers.game.NumbersGameVerticle.java Source code

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Here is the source code for com.github.ithildir.numbers.game.NumbersGameVerticle.java

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/**
 * Copyright (c) 2016 Andrea Di Giorgi
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.github.ithildir.numbers.game;

import com.github.ithildir.numbers.game.util.ConversationUtil;

import io.vertx.core.AbstractVerticle;
import io.vertx.core.Future;
import io.vertx.core.http.HttpMethod;
import io.vertx.core.http.HttpServer;
import io.vertx.core.http.HttpServerResponse;
import io.vertx.core.json.JsonArray;
import io.vertx.core.json.JsonObject;
import io.vertx.ext.web.Route;
import io.vertx.ext.web.Router;
import io.vertx.ext.web.RoutingContext;
import io.vertx.ext.web.handler.BodyHandler;

import java.util.Random;

/**
 * @author Andrea Di Giorgi
 */
public class NumbersGameVerticle extends AbstractVerticle {

    @Override
    public void start(Future<Void> startFuture) throws Exception {
        HttpServer httpServer = vertx.createHttpServer();

        Router router = Router.router(vertx);

        Route route = router.route();

        route.handler(BodyHandler.create());

        route = router.route(HttpMethod.POST, "/actions");

        route.handler(this::_handle);

        httpServer.requestHandler(router::accept);

        httpServer.listen(_PORT, result -> {
            if (result.succeeded()) {
                startFuture.complete();
            } else {
                startFuture.fail(result.cause());
            }
        });
    }

    private void _handle(RoutingContext routingContext) {
        JsonObject requestJSON = routingContext.getBodyAsJson();

        JsonArray inputsJSON = requestJSON.getJsonArray("inputs");

        JsonObject inputJSON = inputsJSON.getJsonObject(0);

        String intent = inputJSON.getString("intent");

        if (intent.equals(ConversationUtil.INTENT_MAIN)) {
            _handleMain(routingContext.response());
        } else {
            _handleText(requestJSON, inputJSON, routingContext.response());
        }
    }

    private void _handleMain(HttpServerResponse httpServerResponse) {
        Random random = new Random();

        int number1 = random.nextInt(7) + 2;
        int number2 = random.nextInt(7) + 2;

        int answer = number1 * number2;

        ConversationUtil.ask(httpServerResponse, String.valueOf(answer),
                "What is " + number1 + " multiplied by " + number2 + "?", _NO_INPUT_PROMPTS);
    }

    private void _handleText(JsonObject requestJSON, JsonObject inputJSON, HttpServerResponse httpServerResponse) {

        JsonArray rawInputsJSON = inputJSON.getJsonArray("raw_inputs");

        JsonObject rawInputJSON = rawInputsJSON.getJsonObject(0);

        String query = rawInputJSON.getString("query");

        JsonObject conversationJSON = requestJSON.getJsonObject("conversation");

        int correctAnswer = Integer.parseInt(conversationJSON.getString("conversation_token"));

        int answer;

        try {
            answer = Integer.parseInt(query);
        } catch (NumberFormatException nfe) {
            ConversationUtil.ask(httpServerResponse, String.valueOf(correctAnswer),
                    "That's not a number, say it again!", _NO_INPUT_PROMPTS);

            return;
        }

        String textToSpeech = "You're right, it is " + correctAnswer + "!";

        if (answer != correctAnswer) {
            textToSpeech = "You're wrong, it was " + correctAnswer + "!";
        }

        ConversationUtil.tell(httpServerResponse, textToSpeech);
    }

    private static final String[] _NO_INPUT_PROMPTS = new String[] { "Say something, please!",
            "Please say something!" };

    private static final int _PORT = 8080;

}