#include "player.h"

M::Player::Player(const W::Address& address, QObject* parent):
    M::Model(address, parent),
    controls(),
    views(),
    playPauseBtn(new M::Button(address + W::Address{u"play"})),
    nextBtn(new M::Button(address + W::Address{u"next"})),
    prevBtn(new M::Button(address + W::Address{u"prev"})),
    _queueView(new M::List(address + W::Address{u"queueView"})),
    _queue(),
    current(0),
    counter(0),
    currentIndex(0),
    mode(playBack),
    playing(false),
    scheduledToplay(false)
{
    W::Handler* get = W::Handler::create(address + W::Address({u"get"}), this, &M::Player::_h_get);
    W::Handler* hqueue = W::Handler::create(address + W::Address({u"queue"}), this, &M::Player::_h_queue);
    W::Handler* hplay = W::Handler::create(address + W::Address({u"play"}), this, &M::Player::_h_play);
    addHandler(get);
    addHandler(hqueue);
    addHandler(hplay);
    
    playPauseBtn->setLabel(W::String(u"Play"));
    playPauseBtn->setEnabled(false);
    connect(playPauseBtn, SIGNAL(activated()), this, SLOT(onPlayPauseBtn()));
    
    nextBtn->setLabel(W::String(u"Next"));
    nextBtn->setEnabled(false);
    connect(nextBtn, SIGNAL(activated()), this, SLOT(onNextBtn()));
    
    prevBtn->setLabel(W::String(u"Prev"));
    prevBtn->setEnabled(false);
    connect(prevBtn, SIGNAL(activated()), this, SLOT(onPrevBtn()));
    
    addModel(playPauseBtn);
    addModel(nextBtn);
    addModel(prevBtn);
    addModel(_queueView);
    
    controls.insert(std::make_pair(playPause, playPauseBtn->getAddress()));
    controls.insert(std::make_pair(next, nextBtn->getAddress()));
    controls.insert(std::make_pair(prev, prevBtn->getAddress()));
    views.insert(std::make_pair(queue, _queueView->getAddress()));
}

M::Player::~Player()
{

}

void M::Player::set(const W::Object& value)
{
    throw 14;   //what do you expect here? not implemented, and not sure it ever would be
}

void M::Player::set(W::Object* value)
{
    set(*value);
}

M::Model::ModelType M::Player::getType() const
{
    return M::Model::player;
}

void M::Player::h_subscribe(const W::Event& ev)
{
    M::Model::h_subscribe(ev);
    
    h_get(ev);
}

void M::Player::h_get(const W::Event& ev)
{
    W::Vector* ctrls = new W::Vector();
    ItemMap::const_iterator citr = controls.begin();
    ItemMap::const_iterator cend = controls.end();
    
    for (; citr != cend; ++citr) {
        W::Vocabulary* cvc = new W::Vocabulary();
        cvc->insert(u"type", new W::Uint64(citr->first));
        cvc->insert(u"address", citr->second);
        
        ctrls->push(cvc);
    }
    
    W::Vector* vws = new W::Vector();
    ItemMap::const_iterator vitr = views.begin();
    ItemMap::const_iterator vend = views.end();
    
    for (; vitr != vend; ++vitr) {
        W::Vocabulary* vvc = new W::Vocabulary();
        vvc->insert(u"type", new W::Uint64(vitr->first));
        vvc->insert(u"address", vitr->second);
        
        vws->push(vvc);
    }
    
    W::Vocabulary* res = new W::Vocabulary();
    
    res->insert(u"controls", ctrls);
    res->insert(u"views", vws);
    res->insert(u"mode", new W::Uint64(mode));
    
    response(res, W::Address({u"get"}), ev);
}

void M::Player::onPlayPauseBtn()
{
    if (playing) {
        pause();
    } else {
        play();
    }
}

void M::Player::h_queue(const W::Event& ev)
{
    const W::Vocabulary& data = static_cast<const W::Vocabulary&>(ev.getData());
    
    const W::Uint64& id = static_cast<const W::Uint64&>(data.at(u"id"));
    ProxySong* song = new ProxySong(id, address + W::Address{W::String(W::Uint64(counter++).toString())});
    addModel(song);
    _queue.push_back(song);
    _queueView->push(song->getAddress());
    
    if (current == 0) {
        setActive(song);
    }
    
    if (currentIndex + 1 < _queue.size()) {
        nextBtn->setEnabled(true);
    }
}

void M::Player::play()
{
    if (!playing) {
        playPauseBtn->setLabel(W::String(u"Pause"));
        playing = true;
        
        switch (mode) {
            case playBack:
                if (current == 0) {
                    scheduledToplay = true;
                } else {
                    if (current->isReady()) {
                        scheduledToplay = false;
                        broadcast(new W::Vocabulary(), W::Address{u"play"});
                        break;
                    } else {
                        scheduledToplay = true;
                    }
                }
        }
    }
}

void M::Player::pause()
{
    if (playing) {
        playPauseBtn->setLabel(W::String(u"Play"));
        playing = false;
        
        switch (mode) {
            case playBack:
                scheduledToplay = false;
                broadcast(new W::Vocabulary(), W::Address{u"pause"});
                break;
        }
    }
}

void M::Player::onSongReady()
{
    emit serviceMessage("Song is ready");
    playPauseBtn->setEnabled(true);
    if (scheduledToplay) {
        scheduledToplay = false;
        if (playing) {
            scheduledToplay = false;
            broadcast(new W::Vocabulary(), W::Address{u"play"});
        } else {
            play();
        }
    }
}

void M::Player::onSongNotReady()
{
    playPauseBtn->setEnabled(false);
    emit serviceMessage("Something happend to the current song, not sure yet what to do");
}

void M::Player::onNextBtn()
{
    if (currentIndex + 1 < _queue.size()) {
        if (playing) {
            pause();
            scheduledToplay = true;
        }
        setActive(currentIndex + 1);
    }
}

void M::Player::onPrevBtn()
{
    if (currentIndex > 0) {
        if (playing) {
            pause();
            scheduledToplay = true;
        }
        setActive(currentIndex - 1);
    }
}

void M::Player::setActive(ProxySong* song)
{
    if (current == song) {
        return;
    }
    
    bool found = false;
    int index;
    for (index = 0; index < _queue.size(); ++index) {
        if (_queue.at(index) == song) {
            found = true;
            break;
        }
    }
    
    if (found) {
        setActive(index);
    } else {
        emit serviceMessage("An attempt to set active a song which is no in the queue, not supposed to happen");
        return;
    }
}

void M::Player::setActive(uint64_t index)
{
    if (index >= _queue.size()) {
        emit serviceMessage("An attempt to set active a song which is no in the queue, not supposed to happen");
        return;
    }
    
    ProxySong* song = _queue.at(index);
    currentIndex = index;
    if (currentIndex + 1 < _queue.size()) {
        nextBtn->setEnabled(true);
    } else {
        nextBtn->setEnabled(false);
    }
    
    if (currentIndex > 0) {
        prevBtn->setEnabled(true);
    } else {
        prevBtn->setEnabled(false);
    }
    
    W::Vocabulary* res = new W::Vocabulary();
    W::Vector* add = new W::Vector();
    W::Vector* remove = new W::Vector();
    if (current != 0) {
        disconnect(current, SIGNAL(ready()), this, SLOT(onSongReady()));
        disconnect(current, SIGNAL(notReady()), this, SLOT(onSongNotReady()));
        remove->push(new W::Uint64(currentPlayback));
    }
    current = song;
    connect(song, SIGNAL(ready()), this, SLOT(onSongReady()));
    connect(song, SIGNAL(notReady()), this, SLOT(onSongNotReady()));
    views.insert(std::make_pair(currentPlayback, song->getAddress()));
    W::Vocabulary* avc = new W::Vocabulary();
    avc->insert(u"type", new W::Uint64(currentPlayback));
    avc->insert(u"address", song->getAddress());
    
    add->push(avc);
    
    res->insert(u"add", add);
    res->insert(u"remove", remove);
    
    
    broadcast(res, W::Address{u"viewsChange"});
    if (song->isReady()) {
        playPauseBtn->setEnabled(true);
        if (scheduledToplay) {
            play();
        }
    } else {
        playPauseBtn->setEnabled(false);
    }
}

void M::Player::h_play(const W::Event& ev)
{
    const W::Vocabulary& data = static_cast<const W::Vocabulary&>(ev.getData());
    
    const W::Uint64& id = static_cast<const W::Uint64&>(data.at(u"id"));
    ProxySong* song = new ProxySong(id, address + W::Address{W::String(W::Uint64(counter++).toString())});
    addModel(song);
    _queue.push_back(song);
    _queueView->push(song->getAddress());
    
    scheduledToplay = true;
    setActive(song);
    
    if (currentIndex + 1 < _queue.size()) {
        nextBtn->setEnabled(true);
    }
}