LongTokensSpeechletWorks.java

package com.github.pavlo.bibi.tmp;

import com.amazon.speech.json.SpeechletRequestEnvelope;
import com.amazon.speech.speechlet.*;
import com.amazon.speech.speechlet.interfaces.audioplayer.AudioItem;
import com.amazon.speech.speechlet.interfaces.audioplayer.AudioPlayer;
import com.amazon.speech.speechlet.interfaces.audioplayer.PlayBehavior;
import com.amazon.speech.speechlet.interfaces.audioplayer.Stream;
import com.amazon.speech.speechlet.interfaces.audioplayer.directive.PlayDirective;
import com.amazon.speech.speechlet.interfaces.audioplayer.request.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.List;

public class LongTokensSpeechletWorks implements SpeechletV2, AudioPlayer {

    private static final Logger log = LoggerFactory.getLogger(LongTokensSpeechletWorks.class);

    private static final List<File> playlist;
    
    static {
        playlist = new ArrayList<>();

        playlist.add(new File("1qYO-7ndpgWA2bpKcDkvUon3Kc_QRA44g",
                "1ZCpF50D4MEse2nu2nmhCrU9UvC1O7sbV",
                "https://drive.google.com/uc?id=1ZCpF50D4MEse2nu2nmhCrU9UvC1O7sbV&export=download"));

        playlist.add(new File("1qYO-7ndpgWA2bpKcDkvUon3Kc_QRA44g",
                "1zogD436vP5o7McjFM8ZV4lHGf1rkkZ1c",
                "https://drive.google.com/uc?id=1zogD436vP5o7McjFM8ZV4lHGf1rkkZ1c&export=download"));

        playlist.add(new File("1qYO-7ndpgWA2bpKcDkvUon3Kc_QRA44g",
                "1XHFb9rWI4svZvXJTQKD8dMT_Xfb3bh44",
                "https://drive.google.com/uc?id=1XHFb9rWI4svZvXJTQKD8dMT_Xfb3bh44&export=download"));
    }
    
    @Override
    public SpeechletResponse onIntent(SpeechletRequestEnvelope<IntentRequest> requestEnvelope) {
        log.debug("Entered `onIntent`");

        int index = 0;
        File file = playlist.get(index);

        Stream stream = new Stream();
        stream.setToken(file.getToken());
        stream.setUrl(file.getUrl());
        stream.setOffsetInMilliseconds(0L);

        AudioItem audioItem = new AudioItem();
        audioItem.setStream(stream);

        PlayDirective playDirective = new PlayDirective();
        playDirective.setAudioItem(audioItem);
        playDirective.setPlayBehavior(PlayBehavior.REPLACE_ALL);

        List<Directive> directives = new ArrayList<>();
        directives.add(playDirective);

        SpeechletResponse result = new SpeechletResponse();
        result.setDirectives(directives);

        log.debug("Finished `onIntent`");
        return result;
    }

    @Override
    public SpeechletResponse onPlaybackNearlyFinished(SpeechletRequestEnvelope<PlaybackNearlyFinishedRequest> requestEnvelope) {
        log.debug("Entered `onPlaybackNearlyFinished`");

        String token = requestEnvelope.getRequest().getToken();
        log.debug("Token: {}", token);
        log.debug("OffsetInMilliseconds: {}", requestEnvelope.getRequest().getOffsetInMilliseconds());

        int indexThatIsFinishing = Integer.MAX_VALUE - 1;

        for(int i = 0; i < playlist.size(); i++) {
            if (playlist.get(i).getToken().equals(token)) {
                indexThatIsFinishing = i;
                break;
            }
        }


        int indexThatIsNext = indexThatIsFinishing + 1;

        if (indexThatIsNext >= playlist.size()) {
            log.debug("Reached the end of the playlist, returning null");
            return null;
        }

        File file = playlist.get(indexThatIsNext);

        Stream stream = new Stream();
        stream.setToken(file.getToken());
        stream.setUrl(file.getUrl());
        stream.setExpectedPreviousToken(token);
        stream.setOffsetInMilliseconds(0L);

        AudioItem audioItem = new AudioItem();
        audioItem.setStream(stream);

        PlayDirective playDirective = new PlayDirective();
        playDirective.setAudioItem(audioItem);
        playDirective.setPlayBehavior(PlayBehavior.ENQUEUE);

        List<Directive> directives = new ArrayList<>();
        directives.add(playDirective);

        SpeechletResponse result = new SpeechletResponse();
        result.setDirectives(directives);

        log.debug("Finished `onPlaybackNearlyFinished`");
        return result;
    }

    static class File {
        private String folderId;
        private String fileId;
        private String url;

        File(String folderId, String fileId, String url) {
            this.folderId = folderId;
            this.fileId = fileId;
            this.url = url;
        }

        String getFolderId() {
            return folderId;
        }

        void setFolderId(String folderId) {
            this.folderId = folderId;
        }

        String getFileId() {
            return fileId;
        }

        void setFileId(String fileId) {
            this.fileId = fileId;
        }

        String getUrl() {
            return url;
        }

        void setUrl(String url) {
            this.url = url;
        }

        String getToken() {
            return url;
        }
    }

    @Override
    public void onSessionEnded(SpeechletRequestEnvelope<SessionEndedRequest> requestEnvelope) {

    }

    @Override
    public SpeechletResponse onPlaybackFailed(SpeechletRequestEnvelope<PlaybackFailedRequest> requestEnvelope) {
        return null;
    }

    @Override
    public SpeechletResponse onPlaybackFinished(SpeechletRequestEnvelope<PlaybackFinishedRequest> requestEnvelope) {
        return null;
    }



    @Override
    public SpeechletResponse onPlaybackStarted(SpeechletRequestEnvelope<PlaybackStartedRequest> requestEnvelope) {
        return null;
    }

    @Override
    public SpeechletResponse onPlaybackStopped(SpeechletRequestEnvelope<PlaybackStoppedRequest> requestEnvelope) {
        return null;
    }

    @Override
    public void onSessionStarted(SpeechletRequestEnvelope<SessionStartedRequest> requestEnvelope) {

    }

    @Override
    public SpeechletResponse onLaunch(SpeechletRequestEnvelope<LaunchRequest> requestEnvelope) {
        return null;
    }

    
}