/*
 * Copyright (C) 2017  Kevin Whitaker <eyecreate@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 */

#include "PlayerInterface.h"
#include <Wt/WText>
#include "../GroovePlayer.h"
#include <grooveplayer/player.h>
#include <Wt/WLength>
#include <Wt/WColor>
#include <Wt/WBorder>
#include <Wt/WString>

PlayerInterface::PlayerInterface(WebInterface* app)
{
    this->app = app;
    interfaceLayout = new Wt::WVBoxLayout();
    this->setLayout(interfaceLayout);
    playControlLayout = new Wt::WHBoxLayout();
    playControlWidget = new Wt::WContainerWidget();
    skipControls = new Wt::WContainerWidget();
    playControlWidget->setLayout(playControlLayout);
    
    currentTrackProgress = new Wt::WProgressBar();
    currentTrackProgress->setFormat("");
    trackProgress = new Wt::WTimer();
    trackProgress->setInterval(1000);
    trackProgress->timeout().connect(this,&PlayerInterface::updateProgressFromTimer);
    currentTrackDetails = new TrackDetails();
    currentTrackDetails->setMinimumSize(Wt::WLength(100,Wt::WLength::Pixel),Wt::WLength(100,Wt::WLength::Pixel));
    currentTrackDetails->changeBackgroundColor(Wt::WColor("#6FFF6F"));
    playpause = new Wt::WPushButton();
    playpause->setTextFormat(Wt::XHTMLText);
    playpause->decorationStyle().font().setFamily(Wt::WFont::Default,"FontAwesome");
    playpause->setText(groove_playlist_playing(GroovePlayerMgr::getInstance()->currentPlaylist)==1?Wt::WString::fromUTF8("&#61516;"):Wt::WString::fromUTF8("&#61515;"));
    playpause->setMaximumSize(Wt::WLength(60,Wt::WLength::Point),Wt::WLength(30,Wt::WLength::Point));
    isPaused = groove_playlist_playing(GroovePlayerMgr::getInstance()->currentPlaylist)==0;
    playpause->clicked().connect(this, &PlayerInterface::playpauseClicked);
    skipRequest = new Wt::WPushButton();
    skipRequest->clicked().connect(this, &PlayerInterface::skipRequestClicked);
    skipRequest->setTextFormat(Wt::XHTMLText);
    skipRequest->decorationStyle().font().setFamily(Wt::WFont::Default,"FontAwesome");
    skipRequest->setText("&#61521;");
    skipDeny = new Wt::WPushButton();
    skipDeny->clicked().connect(this, &PlayerInterface::skipDenyClicked);
    skipDeny->setTextFormat(Wt::XHTMLText);
    skipDeny->decorationStyle().font().setFamily(Wt::WFont::Default,"FontAwesome");
    skipDeny->setText("&#61534;");
    skipDeny->setHidden(true);
    skipControls->addWidget(skipRequest);
    skipControls->addWidget(skipDeny);
    
    mainDisplay = new Wt::WTabWidget();
    requestPane = new RequestInterface(app);
    
    voteMetaContainer = new Wt::WContainerWidget();
    voteMetaLayout = new Wt::WVBoxLayout();
    voteMetaContainer->setLayout(voteMetaLayout);
    voteControlContainer = new Wt::WContainerWidget();
    voteControlContainer->setMaximumSize(Wt::WLength(75,Wt::WLength::Percentage),Wt::WLength::Auto);
    votePanel = new Wt::WPanel();
    votePanel->addStyleClass("panel-primary");
    voteTracksContainer = new Wt::WContainerWidget();
    voteTracksContainer->addStyleClass("panel-body");
    voteTracksLayout = new Wt::WVBoxLayout();
    track1 = new Wt::WHBoxLayout();
    track1details = new TrackDetails();
    track1details->changeBackgroundColor(Wt::WColor("gainsboro"));
    track1vote = new Wt::WPushButton();
    track1vote->setTextFormat(Wt::XHTMLText);
    track1vote->decorationStyle().font().setFamily(Wt::WFont::Default,"FontAwesome");
    track1vote->setMaximumSize(Wt::WLength(50,Wt::WLength::Pixel),Wt::WLength(50,Wt::WLength::Pixel));
    track1vote->setText("&#61770;");
    track1votecount = new Wt::WText("0");
    track1->addWidget(track1details,1,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignLeft);
    track1->addWidget(track1vote,0,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignRight);
    track1->addWidget(track1votecount,0,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignLeft);
    track2 = new Wt::WHBoxLayout();
    track2details = new TrackDetails();
    track2details->changeBackgroundColor(Wt::WColor("gainsboro"));
    track2vote = new Wt::WPushButton();
    track2vote->setTextFormat(Wt::XHTMLText);
    track2vote->decorationStyle().font().setFamily(Wt::WFont::Default,"FontAwesome");
    track2vote->setMaximumSize(Wt::WLength(50,Wt::WLength::Pixel),Wt::WLength(50,Wt::WLength::Pixel));
    track2vote->setText("&#61770;");
    track2votecount = new Wt::WText("0");
    track2->addWidget(track2details,1,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignLeft);
    track2->addWidget(track2vote,0,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignRight);
    track2->addWidget(track2votecount,0,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignLeft);
    track3 = new Wt::WHBoxLayout();
    track3details = new TrackDetails();
    track3details->changeBackgroundColor(Wt::WColor("gainsboro"));
    track3vote = new Wt::WPushButton();
    track3vote->setTextFormat(Wt::XHTMLText);
    track3vote->decorationStyle().font().setFamily(Wt::WFont::Default,"FontAwesome");
    track3vote->setMaximumSize(Wt::WLength(50,Wt::WLength::Pixel),Wt::WLength(50,Wt::WLength::Pixel));
    track3vote->setText("&#61770;");
    track3votecount = new Wt::WText("0");
    track3->addWidget(track3details,1,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignLeft);
    track3->addWidget(track3vote,0,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignRight);
    track3->addWidget(track3votecount,0,Wt::AlignmentFlag::AlignMiddle | Wt::AlignmentFlag::AlignLeft);
    track1vote->clicked().connect(this, &PlayerInterface::vote1clicked);
    track2vote->clicked().connect(this, &PlayerInterface::vote2clicked);
    track3vote->clicked().connect(this, &PlayerInterface::vote3clicked);
    
    interfaceLayout->addWidget(playControlWidget);
    interfaceLayout->addWidget(currentTrackProgress);
    interfaceLayout->addWidget(mainDisplay);
    mainDisplay->addTab(voteMetaContainer,"Up Next",Wt::WTabWidget::PreLoading);
    mainDisplay->addTab(requestPane, "Make Request", Wt::WTabWidget::LazyLoading);
    playControlWidget->addStyleClass("panel");
    playControlWidget->addStyleClass("panel-default");
    playControlWidget->decorationStyle().setBackgroundColor(Wt::WColor("gainsboro"));
    voteMetaLayout->addWidget(voteControlContainer,0,Wt::AlignmentFlag::AlignCenter);
    playControlLayout->addWidget(playpause,0,Wt::AlignmentFlag::AlignLeft | Wt::AlignmentFlag::AlignMiddle);
    playControlLayout->addWidget(currentTrackDetails,0,Wt::AlignmentFlag::AlignCenter | Wt::AlignmentFlag::AlignMiddle);
    playControlLayout->addWidget(skipControls,0,Wt::AlignmentFlag::AlignRight | Wt::AlignmentFlag::AlignMiddle);
    votePanel->setTitle("Upcoming Tracks To Vote On");
    votePanel->decorationStyle().setBackgroundColor(Wt::WColor("lightsteelblue"));
    voteControlContainer->addWidget(votePanel);
    votePanel->setCentralWidget(voteTracksContainer);
    voteTracksContainer->setLayout(voteTracksLayout);
    voteTracksLayout->addLayout(track1);
    voteTracksLayout->addSpacing(Wt::WLength(20,Wt::WLength::Pixel));
    voteTracksLayout->addLayout(track2);
    voteTracksLayout->addSpacing(Wt::WLength(20,Wt::WLength::Pixel));
    voteTracksLayout->addLayout(track3);
}

void PlayerInterface::playpauseClicked()
{
    if(!isPaused) 
    {
        GroovePlayerMgr::getInstance()->lastInternalEvents.push_back(GroovePlayerMgr::PlayerEvent() = {GroovePlayerMgr::PlayerEventType::PLAYING_PAUSED, app->currentUser, std::list<AudioTrack>{GroovePlayerMgr::getInstance()->currentTrack}});
    }
    else
    {
        GroovePlayerMgr::getInstance()->lastInternalEvents.push_back(GroovePlayerMgr::PlayerEvent() = {GroovePlayerMgr::PlayerEventType::PLAYING_RESUMED, app->currentUser, std::list<AudioTrack>{GroovePlayerMgr::getInstance()->currentTrack}});
    }
}

void PlayerInterface::skipRequestClicked()
{
    if(!isPaused)
    {
        GroovePlayerMgr::getInstance()->lastInternalEvents.push_back(GroovePlayerMgr::PlayerEvent() = {GroovePlayerMgr::PlayerEventType::SKIP_REQUESTED, app->currentUser, std::list<AudioTrack>{GroovePlayerMgr::getInstance()->currentTrack}});
    }
}

void PlayerInterface::skipDenyClicked()
{
    if(!isPaused)
    {
        GroovePlayerMgr::getInstance()->lastInternalEvents.push_back(GroovePlayerMgr::PlayerEvent() = {GroovePlayerMgr::PlayerEventType::SKIP_VOTE_CAST_AGAINST, app->currentUser, std::list<AudioTrack>{GroovePlayerMgr::getInstance()->currentTrack}});
    }
}

void PlayerInterface::vote1clicked()
{
    track1vote->setEnabled(false);
    track2vote->setEnabled(false);
    track3vote->setEnabled(false);
    GroovePlayerMgr::getInstance()->lastInternalEvents.push_back(GroovePlayerMgr::PlayerEvent() = {GroovePlayerMgr::PlayerEventType::VOTE_CAST, app->currentUser, std::list<AudioTrack>{track1details->extractTrackFromDetails()}});
}

void PlayerInterface::vote2clicked()
{
    track1vote->setEnabled(false);
    track2vote->setEnabled(false);
    track3vote->setEnabled(false);
    GroovePlayerMgr::getInstance()->lastInternalEvents.push_back(GroovePlayerMgr::PlayerEvent() = {GroovePlayerMgr::PlayerEventType::VOTE_CAST, app->currentUser, std::list<AudioTrack>{track2details->extractTrackFromDetails()}});
}

void PlayerInterface::vote3clicked()
{
    track1vote->setEnabled(false);
    track2vote->setEnabled(false);
    track3vote->setEnabled(false);
    GroovePlayerMgr::getInstance()->lastInternalEvents.push_back(GroovePlayerMgr::PlayerEvent() = {GroovePlayerMgr::PlayerEventType::VOTE_CAST, app->currentUser, std::list<AudioTrack>{track3details->extractTrackFromDetails()}});
}

void PlayerInterface::updateSkipRequestedFromServer()
{
    skipRequest->setHidden(true);
    skipDeny->setHidden(false);
}

void PlayerInterface::updateSkipDeniedFromServer()
{
    skipDeny->setHidden(true);
    skipRequest->setHidden(false);
}

void PlayerInterface::updateVotingEnded(AudioTrack winner)
{
    skipRequest->setEnabled(false);
    track1vote->setEnabled(false);
    track2vote->setEnabled(false);
    track3vote->setEnabled(false);
    //show winning track
    if(track1details->trackMatches(winner)) track1details->changeBackgroundColor(Wt::WColor("gold"));
    else if(track2details->trackMatches(winner)) track2details->changeBackgroundColor(Wt::WColor("gold"));
    else if(track3details->trackMatches(winner)) track3details->changeBackgroundColor(Wt::WColor("gold"));
}

void PlayerInterface::updateVoteCount(AudioTrack trackVoted)
{
    //update track vote
    if(track1details->trackMatches(trackVoted)) track1votecount->setText(std::to_string(std::stoi(track1votecount->text())+1));
    else if(track2details->trackMatches(trackVoted)) track2votecount->setText(std::to_string(std::stoi(track2votecount->text())+1));
    else if(track3details->trackMatches(trackVoted)) track3votecount->setText(std::to_string(std::stoi(track3votecount->text())+1));
}

void PlayerInterface::playpauseUpdated()
{
    if(isPaused) 
    {
        skipRequest->setEnabled(false);
        playpause->setText(Wt::WString::fromUTF8("&#61515;"));
    }
    else
    {
        if(!GroovePlayerMgr::getInstance()->voteEndedButNotNextTrackYet) skipRequest->setEnabled(true);
        playpause->setText(Wt::WString::fromUTF8("&#61516;"));
    }
}

void PlayerInterface::updateProgressFromTimer()
{
    if(currentTrackProgress->maximum() >= currentTrackProgress->value()+1)
    {
        double secondsIn;
        groove_player_position(GroovePlayerMgr::getInstance()->currentPlayer,nullptr, &secondsIn);
        currentTrackProgress->setValue(secondsIn);
    }
    else if(currentTrackProgress->maximum() < currentTrackProgress->value()+1)
    {
        currentTrackProgress->setValue(currentTrackProgress->maximum());
        trackProgress->stop();
    }
}

void PlayerInterface::updateDetailsFromServer(AudioTrack track)
{
    //Find current song playing and set progress state.
    double secondsIn;
    groove_player_position(GroovePlayerMgr::getInstance()->currentPlayer,nullptr, &secondsIn);
    currentTrackProgress->setMaximum(track.trackLengthSeconds);
    currentTrackProgress->setValue(secondsIn);
    isPaused = groove_playlist_playing(GroovePlayerMgr::getInstance()->currentPlaylist) == 0;
    if(!isPaused)
    {
        trackProgress->start();
    }
    playpauseUpdated();
    if(GroovePlayerMgr::getInstance()->currentSkipRequester.size() > 0)
    {
        updateSkipRequestedFromServer();
    }
    else
    {
        updateSkipDeniedFromServer();
    }
    currentTrackDetails->updateWithTrackDetails(track);
    
}

void PlayerInterface::updateVoteableTracksFromServer(std::list<AudioTrack> tracks)
{
    //Update current vote items
    auto trackIter = tracks.begin();
    track1details->updateWithTrackDetails(*trackIter);
    track2details->updateWithTrackDetails(*++trackIter);
    track3details->updateWithTrackDetails(*++trackIter);
    track1vote->setEnabled(true);
    track2vote->setEnabled(true);
    track3vote->setEnabled(true);
    //reset color state of tracks
    track1details->changeBackgroundColor(Wt::WColor("gainsboro"));
    track2details->changeBackgroundColor(Wt::WColor("gainsboro"));
    track3details->changeBackgroundColor(Wt::WColor("gainsboro"));
}

void PlayerInterface::updateVoteTrackState()
{
    //Update vote counts of tracks
    auto trackIter = GroovePlayerMgr::getInstance()->currentVoteStatus.begin();
    track1votecount->setText(std::to_string(trackIter->second));
    ++trackIter;
    track2votecount->setText(std::to_string(trackIter->second));
    ++trackIter;
    track3votecount->setText(std::to_string(trackIter->second));
    //Make sure vote buttons are disabled if this user already voted
    for(User user : GroovePlayerMgr::getInstance()->currentUsersVoted)
    {
        if(user.username == app->currentUser.username)
        {
            track1vote->setEnabled(false);
            track2vote->setEnabled(false);
            track3vote->setEnabled(false);
        }
    }
}