SongAPI.cpp

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/*
    MIT License
 
    DiscordCoreAPI, A bot library for Discord, written in C++, and featuring explicit multithreading through the usage of custom, asynchronous C++ CoRoutines.
 
    Copyright 2022, 2023 Chris M. (RealTimeChris)
 
    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
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    furnished to do so, subject to the following conditions:
 
    The above copyright notice and this permission notice shall be included in all
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    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
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*/
/// SongAPI.cpp - Source file for the song api related stuff.
/// Sep 17, 2021
/// https://discordcoreapi.com
/// \file SongAPI.cpp
 
#include <discordcoreapi/SongAPI.hpp>
#include <discordcoreapi/DiscordCoreClient.hpp>
#include <discordcoreapi/VoiceConnection.hpp>
#include <discordcoreapi/SoundCloudAPI.hpp>
#include <discordcoreapi/YouTubeAPI.hpp>
 
namespace discord_core_api {
 
    song_api::song_api(const snowflake guildIdNew) {
        guildId = guildIdNew;
    }
 
    void song_api::onSongCompletion(std::function<co_routine<void, false>(song_completion_event_data)> handler) {
        onSongCompletionEvent.functions.clear();
        eventToken = onSongCompletionEvent.add(handler);
    }
 
    bool song_api::skip(bool wasItAFail) {
        audio_frame_data dataFrame{};
        audioDataBuffer.clearContents();
        auto returnValue = discord_core_client::getVoiceConnection(guildId).skip(wasItAFail);
        audioDataBuffer.send(std::move(dataFrame));
        return returnValue;
    }
 
    jsonifier::vector<song> song_api::searchForSong(jsonifier::string_view searchQuery, uint64_t limit) {
        std::unique_lock lock{ accessMutex };
        jsonifier::vector<song> vector01{};
        jsonifier::vector<song> vector02{};
        if (searchQuery.find("soundcloud") == jsonifier::string::npos && searchQuery.find("youtube") == jsonifier::string::npos) {
            vector01 = discord_core_client::getSoundCloudAPI(guildId).searchForSong(searchQuery, limit);
            vector02 = discord_core_client::getYouTubeAPI(guildId).searchForSong(searchQuery, limit);
        } else if (searchQuery.find("youtube") != jsonifier::string::npos) {
            vector02 = discord_core_client::getYouTubeAPI(guildId).searchForSong(searchQuery, limit);
        } else if (searchQuery.find("soundcloud") != jsonifier::string::npos) {
            vector01 = discord_core_client::getSoundCloudAPI(guildId).searchForSong(searchQuery, limit);
        }
        uint64_t totalLength = vector01.size() + vector02.size();
        jsonifier::vector<song> newVector{};
        uint64_t vector01Used{};
        uint64_t vector02Used{};
        for (uint64_t x = 0; x < totalLength; ++x) {
            if ((vector01Used < vector01.size()) && (x % 2 == 0) && vector01.size() > 0) {
                newVector.emplace_back(vector01[vector01Used]);
                newVector[newVector.size() - 1].type = song_type::SoundCloud;
                ++vector01Used;
            } else if (vector02Used < vector02.size() && vector02.size() > 0) {
                newVector.emplace_back(vector02[vector02Used]);
                newVector[newVector.size() - 1].type = song_type::YouTube;
                ++vector02Used;
            }
        }
        return newVector;
    }
 
    bool song_api::play(song songNew) {
        std::unique_lock lock{ accessMutex };
        if (taskThread.getStatus() == co_routine_status::running) {
            taskThread.cancelAndWait();
        }
        discord_core_client::getVoiceConnection(guildId).currentUserId = songNew.addedByUserId;
        if (songNew.type == song_type::SoundCloud) {
            song newerSong{ discord_core_client::getSoundCloudAPI(guildId).collectFinalSong(songNew) };
            taskThread = discord_core_client::getSoundCloudAPI(guildId).downloadAndStreamAudio(newerSong);
 
        } else if (songNew.type == song_type::YouTube) {
            song newerSong{ discord_core_client::getYouTubeAPI(guildId).collectFinalSong(songNew) };
            taskThread = discord_core_client::getYouTubeAPI(guildId).downloadAndStreamAudio(newerSong);
        };
        return discord_core_client::getVoiceConnection(guildId).play();
    }
 
    bool song_api::areWeCurrentlyPlaying() const {
        return discord_core_client::getVoiceConnection(guildId).areWeCurrentlyPlaying();
    }
 
    bool song_api::play() {
        return discord_core_client::getVoiceConnection(guildId).play();
    }
 
    bool song_api::pauseToggle() {
        return discord_core_client::getVoiceConnection(guildId).pauseToggle();
    }
 
    bool song_api::stop() {
        bool returnValue = discord_core_client::getVoiceConnection(guildId).stop();
        if (taskThread.getStatus() == co_routine_status::running) {
            taskThread.cancelAndWait();
        }
        audioDataBuffer.clearContents();
        return returnValue;
    }
 
    void song_api::disconnect() {
        if (taskThread.getStatus() == co_routine_status::running) {
            taskThread.cancelAndWait();
        }
        onSongCompletionEvent.erase(eventToken);
        audioDataBuffer.clearContents();
        stop_watch<milliseconds> stopWatch{ 10000ms };
        stopWatch.reset();
        while (discord_core_client::getSoundCloudAPI(guildId).areWeWorking() || discord_core_client::getYouTubeAPI(guildId).areWeWorking()) {
            if (stopWatch.hasTimeElapsed()) {
                break;
            }
            std::this_thread::sleep_for(1ms);
        }
    }
};