/**
 * @file fsdiscordconnect.h
 * @brief Connection to Discord
 * @author liny@pinkfox.xyz
 *
 * $LicenseInfo:firstyear=2013&license=viewerlgpl$
 * Phoenix Firestorm Viewer Source Code
 * Copyright (C) 2019 Liny Odell @ Second Life
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * The Phoenix Firestorm Project, Inc., 1831 Oakwood Drive, Fairmont, Minnesota 56031-3225 USA
 * http://www.firestormviewer.org
 */

#ifndef FS_FSDISCORDCONNECT_H
#define FS_FSDISCORDCONNECT_H

#include "llsingleton.h"
#include "llcoros.h"
#include "lleventcoro.h"

class LLEventPump;

class FSDiscordConnect : public LLSingleton<FSDiscordConnect>
{
    LLSINGLETON(FSDiscordConnect);
    LOG_CLASS(FSDiscordConnect);
public:
    enum EConnectionState
    {
        DISCORD_NOT_CONNECTED = 0,
        DISCORD_CONNECTION_IN_PROGRESS = 1,
        DISCORD_CONNECTED = 2,
        DISCORD_CONNECTION_FAILED = 3,
        DISCORD_DISCONNECTING = 4
    };

    ~FSDiscordConnect();

    void connectToDiscord();                                                                                // Initiate the complete Discord connection. Please use checkConnectionToDiscord() in normal use.
    void disconnectFromDiscord();                                                                           // Disconnect from the Discord service.
    void checkConnectionToDiscord(bool auto_connect = false);                                               // Check if connected to the Discord service. If not, call connectToDiscord().

    void storeInfo(const LLSD& info);
    const LLSD& getInfo() const;
    void clearInfo();

    void setConnectionState(EConnectionState connection_state);
    void setConnected(bool connected);
    bool isConnected() const { return mConnected; }
    EConnectionState getConnectionState() { return mConnectionState; }

    void updateRichPresence() const;

    bool Tick(const LLSD&);

private:

    EConnectionState mConnectionState;
    bool mConnected;
    LLSD mInfo;
    bool mRefreshInfo;

    static std::unique_ptr<LLEventPump> sStateWatcher;
    static std::unique_ptr<LLEventPump> sInfoWatcher;

    void discordConnectCoro();
    void discordDisconnectCoro();
    void discordConnectedCoro(bool autoConnect);

    bool checkMarkerFile() const;
    void setMarkerFile();
    void clearMarkerFile();

    std::string mMarkerFilename;
    time_t mConnectTime;
};

#endif // FS_FSDISCORDCONNECT_H