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
    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
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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>
#include <map>
 
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{};
        if (vector01.size() == 0 && vector02.size() != 0 || (vector01.size() >= 1 && vector02.size() >= 1)) {
            return vector02;
        } else if (vector02.size() == 0 && vector01.size() != 0 || (vector02.size() >= 1 && vector01.size() >= 1)) {
            return vector01;
        } else {
            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 };
        audioDataBuffer.clearContents();
        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);
        }
    }
};