#include "amuse/amuse.hpp"
#include "amuse/BooBackend.hpp"
#include "boo/boo.hpp"
#include "logvisor/logvisor.hpp"
#include <thread>

#define EMITTER_TEST 0

static logvisor::Module Log("amuseplay");

#if __GNUC__
__attribute__((__format__(__printf__, 3, 4)))
#endif
static inline void
SNPrintf(boo::SystemChar* str, size_t maxlen, const boo::SystemChar* format, ...)
{
    va_list va;
    va_start(va, format);
#if _WIN32
    _vsnwprintf(str, maxlen, format, va);
#else
    vsnprintf(str, maxlen, format, va);
#endif
    va_end(va);
}

struct AppCallback;

struct EventCallback : boo::IWindowCallback
{
    AppCallback& m_app;
    bool m_tracking = false;

public:
    void charKeyDown(unsigned long charCode, boo::EModifierKey mods, bool isRepeat);
    void charKeyUp(unsigned long charCode, boo::EModifierKey mods);
    void specialKeyDown(boo::ESpecialKey key, boo::EModifierKey mods, bool isRepeat);
    void specialKeyUp(boo::ESpecialKey key, boo::EModifierKey mods);
    void resized(const boo::SWindowRect&, const boo::SWindowRect&) {}

    void mouseDown(const boo::SWindowCoord&, boo::EMouseButton, boo::EModifierKey);
    void mouseUp(const boo::SWindowCoord&, boo::EMouseButton, boo::EModifierKey);
    void mouseMove(const boo::SWindowCoord& coord);

    EventCallback(AppCallback& app) : m_app(app) {}
};

struct AppCallback : boo::IApplicationCallback
{
    int m_argc;
    const boo::SystemChar** m_argv;

    /* Boo window and events */
    EventCallback m_eventRec;
    boo::DeferredWindowEvents<EventCallback> m_events;
    std::shared_ptr<boo::IWindow> m_win;

    /* Amuse engine */
    std::experimental::optional<amuse::BooBackendVoiceAllocator> m_booBackend;
    std::experimental::optional<amuse::Engine> m_engine;
    int m_groupId = -1;
    bool m_sfxGroup;

    /* Song playback selection */
    int m_setupId = -1;
    int m_chanId = 0;
    int8_t m_octave = 4;
    int8_t m_velocity = 64;
    std::shared_ptr<amuse::Sequencer> m_seq;
    amuse::ContainerRegistry::SongData* m_arrData = nullptr;

    /* SFX playback selection */
    int m_sfxId = -1;
    std::shared_ptr<amuse::Voice> m_vox;
    size_t m_lastVoxCount = 0;
    int8_t m_lastChanProg = -1;

    /* Control state */
    float m_volume = 0.8f;
    float m_modulation = 0.f;
    float m_pitchBend = 0.f;
    bool m_updateDisp = false;
    bool m_running = true;
    bool m_wantsNext = false;
    bool m_wantsPrev = false;
    bool m_breakout = false;
    int m_panicCount = 0;

#if EMITTER_TEST
    amuse::Vector3f m_pos = {};
    amuse::Vector3f m_dir = {0.f, 0.f, 0.f};
    amuse::Vector3f m_listenerDir = {0.f, 40.f, 0.f};
    std::shared_ptr<amuse::Emitter> m_emitter;
    std::shared_ptr<amuse::Listener> m_listener;
#endif

    void UpdateSongDisplay()
    {
        size_t voxCount = 0;
        int program = 0;
        if (m_seq)
        {
            voxCount = m_seq->getVoiceCount();
            program = m_seq->getChanProgram(m_chanId);
        }
        printf(
            "\r                                                                                "
            "\r  %" PRISize " Setup %d, Chan %d, Prog %d, Octave: %d, Vel: %d, VOL: %d%%\r",
            voxCount, m_setupId, m_chanId, program, m_octave, m_velocity, int(std::rint(m_volume * 100)));
        fflush(stdout);
    }

    void SelectSong(int setupId)
    {
        m_setupId = setupId;
        if (m_seq)
        {
            m_seq->stopSong(0.f, true);
            m_seq->kill();
        }
        m_seq = m_engine->seqPlay(m_groupId, setupId, nullptr);
        m_engine->setVolume(m_volume);

        if (m_arrData)
            m_seq->playSong(m_arrData->m_data.get(), false);

        UpdateSongDisplay();
    }

    void SongLoop(const amuse::SongGroupIndex& index, boo::IAudioVoiceEngine& booEngine)
    {
        printf(
            "░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░\n"
            "░░░   ████ ████  ┃  ████ ████ ████   ┃   ████ ████  ░░░\n"
            "░░░   ████ ████  ┃  ████ ████ ████   ┃   ████ ████  ░░░\n"
            "░░░   ▌W▐█ ▌E▐█  ┃  ▌T▐█ ▌Y▐█ ▌U▐█   ┃   ▌O▐█ ▌P▐█  ░░░\n"
            "░░░    │    │    ┃    │    │    │    ┃    │    │    ░░░\n"
            "░░░ A  │ S  │ D  ┃ F  │ G  │ H  │ J  ┃ K  │ L  │ ;  ░░░\n"
            "░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░\n"
            "<left/right>: cycle MIDI setup, <up/down>: volume, <space>: PANIC\n"
            "<tab>: sustain pedal, <window-Y>: pitch wheel, <window-X>: mod wheel\n"
            "<Z/X>: octave, <C/V>: velocity, <B/N>: channel, <,/.>: program, <Q>: quit\n");

        std::map<int, const std::array<amuse::SongGroupIndex::MIDISetup, 16>*> sortEntries(index.m_midiSetups.cbegin(),
                                                                                           index.m_midiSetups.cend());
        auto setupIt = sortEntries.cbegin();
        if (setupIt != sortEntries.cend())
        {
            if (m_setupId == -1)
                SelectSong(setupIt->first);
            else
            {
                while (setupIt != sortEntries.cend() && setupIt->first != m_setupId)
                    ++setupIt;
                if (setupIt == sortEntries.cend())
                    setupIt = sortEntries.cbegin();
                SelectSong(setupIt->first);
            }
        }

        while (m_running)
        {
            m_events.dispatchEvents();

            if (m_wantsNext)
            {
                m_wantsNext = false;
                auto nextIt = setupIt;
                ++nextIt;
                if (nextIt != sortEntries.cend())
                {
                    ++setupIt;
                    SelectSong(setupIt->first);
                    m_updateDisp = false;
                }
            }

            if (m_wantsPrev)
            {
                m_wantsPrev = false;
                if (setupIt != sortEntries.cbegin())
                {
                    --setupIt;
                    SelectSong(setupIt->first);
                    m_updateDisp = false;
                }
            }

            if (m_seq && m_panicCount)
            {
                if (m_panicCount > 1)
                {
                    m_seq->allOff(true);
                    m_panicCount = 0;
                }
                else
                    m_seq->allOff(false);
                m_updateDisp = true;
            }

            if (m_updateDisp)
            {
                m_updateDisp = false;
                UpdateSongDisplay();
            }

            m_win->waitForRetrace(&booEngine);

            size_t voxCount;
            int8_t progId;
            if (m_seq)
            {
                voxCount = m_seq->getVoiceCount();
                progId = m_seq->getChanProgram(m_chanId);
            }
            else
            {
                voxCount = 0;
                progId = -1;
            }

            if (m_lastVoxCount != voxCount || m_lastChanProg != progId)
            {
                m_lastVoxCount = voxCount;
                m_lastChanProg = progId;
                UpdateSongDisplay();
            }

            if (m_breakout)
            {
                m_breakout = false;
                m_seq->allOff(true);
                m_seq.reset();
                break;
            }
        }
    }

    void UpdateSFXDisplay()
    {
        bool playing = m_vox && m_vox->state() == amuse::VoiceState::Playing;
#if EMITTER_TEST
        printf(
            "\r                                                                                "
            "\r  %c SFX %d, VOL: %d%% POS: (%f,%f)\r",
            playing ? '>' : ' ', m_sfxId, int(std::rint(m_volume * 100)), m_pos[0], m_pos[1]);
#else
        printf(
            "\r                                                                                "
            "\r  %c SFX %d, VOL: %d%%\r",
            playing ? '>' : ' ', m_sfxId, int(std::rint(m_volume * 100)));
#endif
        fflush(stdout);
    }

    void SelectSFX(int sfxId)
    {
        m_sfxId = sfxId;

        bool playing = m_vox && m_vox->state() == amuse::VoiceState::Playing;
        if (playing)
        {
#if EMITTER_TEST
            if (m_emitter)
                m_emitter->getVoice()->keyOff();
            m_emitter = m_engine->addEmitter(m_pos, m_dir, 100.f, 0.f, m_sfxId, 0.f, 1.f, true);
            m_vox = m_emitter->getVoice();
#else
            m_vox->keyOff();
            m_vox = m_engine->fxStart(m_sfxId, m_volume, 0.f);
#endif
        }

        UpdateSFXDisplay();
    }

    void SFXLoop(const amuse::SFXGroupIndex& index, boo::IAudioVoiceEngine& booEngine)
    {
        printf("<space>: keyon/keyoff, <left/right>: cycle SFX, <up/down>: volume, <Q>: quit\n");

        m_seq = m_engine->seqPlay(m_groupId, 0, nullptr);

        std::map<uint16_t, const amuse::SFXGroupIndex::SFXEntry*> sortEntries(index.m_sfxEntries.cbegin(),
                                                                              index.m_sfxEntries.cend());
        auto sfxIt = sortEntries.cbegin();
        if (sfxIt != sortEntries.cend())
            SelectSFX(sfxIt->first);

#if EMITTER_TEST
        float emitterTheta = 0.f;
        float zeroVec[3] = {};
        float heading[3] = {0.f, 1.f, 0.f};
        float up[3] = {0.f, 0.f, 1.f};
        m_listener = m_engine->addListener(zeroVec, m_listenerDir, heading, up, 5.f, 5.f, 1000.f, 1.f);
#endif

        while (m_running)
        {
#if EMITTER_TEST
            //float dist = std::sin(emitterTheta * 0.25f);
            m_pos[0] = std::cos(emitterTheta) * 5.f;
            m_pos[1] = std::sin(emitterTheta) * 5.f;
            if (m_emitter)
                m_emitter->setVectors(m_pos, m_dir);
            emitterTheta += 1.f / 60.f;
            m_updateDisp = true;
#endif

            m_events.dispatchEvents();

            if (m_wantsNext)
            {
                m_wantsNext = false;
                auto nextIt = sfxIt;
                ++nextIt;
                if (nextIt != sortEntries.cend())
                {
                    ++sfxIt;
                    SelectSFX(sfxIt->first);
                    m_updateDisp = false;
                }
            }

            if (m_wantsPrev)
            {
                m_wantsPrev = false;
                if (sfxIt != sortEntries.cbegin())
                {
                    --sfxIt;
                    SelectSFX(sfxIt->first);
                    m_updateDisp = false;
                }
            }

            if (m_updateDisp)
            {
                m_updateDisp = false;
                UpdateSFXDisplay();
            }

            m_win->waitForRetrace(&booEngine);

            if (m_vox && m_vox->state() == amuse::VoiceState::Dead)
            {
                m_vox.reset();
#if EMITTER_TEST
                m_emitter.reset();
#endif
                UpdateSFXDisplay();
            }

            if (m_breakout)
            {
                m_breakout = false;
                m_vox.reset();
#if EMITTER_TEST
                m_emitter.reset();
#endif
                m_seq->allOff(true);
                m_seq.reset();
                break;
            }
        }

#if EMITTER_TEST
        m_engine->removeListener(m_listener.get());
        m_listener.reset();
#endif
    }

    void charKeyDownRepeat(unsigned long charCode)
    {
        charCode = tolower(charCode);

        if (m_seq && m_chanId != -1)
        {
            switch (charCode)
            {
            case 'z':
                m_octave = amuse::clamp(-1, m_octave - 1, 8);
                m_updateDisp = true;
                break;
            case 'x':
                m_octave = amuse::clamp(-1, m_octave + 1, 8);
                m_updateDisp = true;
                break;
            case 'c':
                m_velocity = amuse::clamp(0, m_velocity - 1, 127);
                m_updateDisp = true;
                break;
            case 'v':
                m_velocity = amuse::clamp(0, m_velocity + 1, 127);
                m_updateDisp = true;
                break;
            case 'b':
                m_chanId = amuse::clamp(0, m_chanId - 1, 15);
                m_updateDisp = true;
                break;
            case 'n':
                m_chanId = amuse::clamp(0, m_chanId + 1, 15);
                m_updateDisp = true;
                break;
            case ',':
                m_seq->prevChanProgram(m_chanId);
                m_updateDisp = true;
                break;
            case '.':
                m_seq->nextChanProgram(m_chanId);
                m_updateDisp = true;
                break;
            default:
                break;
            }
        }
    }

    void charKeyDown(unsigned long charCode)
    {
        charCode = tolower(charCode);
        if (charCode == 'q')
        {
            m_running = false;
            return;
        }

        if (m_sfxGroup)
        {
            switch (charCode)
            {
            case ' ':
                if (m_seq)
                    m_seq->allOff(true);
                if (m_vox && m_vox->state() == amuse::VoiceState::Playing)
                    m_vox->keyOff();
                else if (m_sfxId != -1)
                {
#if EMITTER_TEST
                    m_emitter = m_engine->addEmitter(m_pos, m_dir, 100.f, 0.f, m_sfxId, 0.f, 1.f, true);
                    m_vox = m_emitter->getVoice();
#else
                    m_vox = m_engine->fxStart(m_sfxId, m_volume, 0.f);
#endif
                }
                m_updateDisp = true;
            default:
                break;
            }
        }
        else if (m_seq && m_chanId != -1)
        {
            bool setPanic = false;

            switch (charCode)
            {
            case ' ':
                ++m_panicCount;
                setPanic = true;
                break;
            case 'z':
                m_octave = amuse::clamp(-1, m_octave - 1, 8);
                m_updateDisp = true;
                break;
            case 'x':
                m_octave = amuse::clamp(-1, m_octave + 1, 8);
                m_updateDisp = true;
                break;
            case 'c':
                m_velocity = amuse::clamp(0, m_velocity - 1, 127);
                m_updateDisp = true;
                break;
            case 'v':
                m_velocity = amuse::clamp(0, m_velocity + 1, 127);
                m_updateDisp = true;
                break;
            case 'b':
                m_chanId = amuse::clamp(0, m_chanId - 1, 15);
                m_updateDisp = true;
                break;
            case 'n':
                m_chanId = amuse::clamp(0, m_chanId + 1, 15);
                m_updateDisp = true;
                break;
            case ',':
                m_seq->prevChanProgram(m_chanId);
                m_updateDisp = true;
                break;
            case '.':
                m_seq->nextChanProgram(m_chanId);
                m_updateDisp = true;
                break;
            case '\t':
                m_seq->setCtrlValue(m_chanId, 64, 127);
                break;
            case 'a':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12, m_velocity);
                break;
            case 'w':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 1, m_velocity);
                break;
            case 's':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 2, m_velocity);
                break;
            case 'e':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 3, m_velocity);
                break;
            case 'd':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 4, m_velocity);
                break;
            case 'f':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 5, m_velocity);
                break;
            case 't':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 6, m_velocity);
                break;
            case 'g':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 7, m_velocity);
                break;
            case 'y':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 8, m_velocity);
                break;
            case 'h':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 9, m_velocity);
                break;
            case 'u':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 10, m_velocity);
                break;
            case 'j':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 11, m_velocity);
                break;
            case 'k':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 12, m_velocity);
                break;
            case 'o':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 13, m_velocity);
                break;
            case 'l':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 14, m_velocity);
                break;
            case 'p':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 15, m_velocity);
                break;
            case ';':
            case ':':
                m_seq->keyOn(m_chanId, (m_octave + 1) * 12 + 16, m_velocity);
                break;
            default:
                break;
            }

            if (!setPanic)
                m_panicCount = 0;
        }
    }

    void charKeyUp(unsigned long charCode)
    {
        charCode = tolower(charCode);

        if (!m_sfxGroup && m_chanId != -1)
        {
            switch (charCode)
            {
            case '\t':
                m_seq->setCtrlValue(m_chanId, 64, 0);
                break;
            case 'a':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12, m_velocity);
                break;
            case 'w':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 1, m_velocity);
                break;
            case 's':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 2, m_velocity);
                break;
            case 'e':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 3, m_velocity);
                break;
            case 'd':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 4, m_velocity);
                break;
            case 'f':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 5, m_velocity);
                break;
            case 't':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 6, m_velocity);
                break;
            case 'g':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 7, m_velocity);
                break;
            case 'y':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 8, m_velocity);
                break;
            case 'h':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 9, m_velocity);
                break;
            case 'u':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 10, m_velocity);
                break;
            case 'j':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 11, m_velocity);
                break;
            case 'k':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 12, m_velocity);
                break;
            case 'o':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 13, m_velocity);
                break;
            case 'l':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 14, m_velocity);
                break;
            case 'p':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 15, m_velocity);
                break;
            case ';':
            case ':':
                m_seq->keyOff(m_chanId, (m_octave + 1) * 12 + 16, m_velocity);
                break;
            default:
                break;
            }
        }
    }

    int appMain(boo::IApplication* app)
    {
        /* Event window */
        m_win = app->newWindow(_S("amuseplay"), 1);
        m_win->setCallback(&m_events);
        m_win->setWindowFrame(100, 100, 100, 100);
        m_win->setStyle(~boo::EWindowStyle::Resize);
        m_win->showWindow();
        boo::ITextureR* tex = nullptr;
        boo::GraphicsDataToken gfxToken =
            m_win->getMainContextDataFactory()->commitTransaction([&](boo::IGraphicsDataFactory::Context& ctx) -> bool {
                tex = ctx.newRenderTexture(100, 100, boo::TextureClampMode::Repeat, 0, 0);
                return true;
            });
        boo::IGraphicsCommandQueue* q = m_win->getCommandQueue();
        q->setRenderTarget(tex);
        q->clearTarget();
        q->resolveDisplay(tex);
        q->execute();

        /* Load data */
        if (m_argc < 2)
        {
            Log.report(logvisor::Error, "needs group path argument");
            exit(1);
        }

        amuse::ContainerRegistry::Type cType = amuse::ContainerRegistry::DetectContainerType(m_argv[1]);
        if (cType == amuse::ContainerRegistry::Type::Invalid)
        {
            Log.report(logvisor::Error, "invalid/no data at path argument");
            exit(1);
        }
        Log.report(logvisor::Info, _S("Found '%s' Audio Group data"), amuse::ContainerRegistry::TypeToName(cType));

        std::vector<std::pair<amuse::SystemString, amuse::IntrusiveAudioGroupData>> data =
            amuse::ContainerRegistry::LoadContainer(m_argv[1]);
        if (data.empty())
        {
            Log.report(logvisor::Error, "invalid/no data at path argument");
            exit(1);
        }

        std::list<amuse::AudioGroupProject> m_projs;
        std::map<int, std::pair<std::pair<amuse::SystemString, amuse::IntrusiveAudioGroupData>*,
                                const amuse::SongGroupIndex*>>
            allSongGroups;
        std::map<int, std::pair<std::pair<amuse::SystemString, amuse::IntrusiveAudioGroupData>*,
                                const amuse::SFXGroupIndex*>>
            allSFXGroups;
        size_t totalGroups = 0;

        for (auto& grp : data)
        {
            /* Load project to assemble group list */
            m_projs.push_back(amuse::AudioGroupProject::CreateAudioGroupProject(grp.second));
            amuse::AudioGroupProject& proj = m_projs.back();
            totalGroups += proj.sfxGroups().size() + proj.songGroups().size();

            for (auto it = proj.songGroups().begin(); it != proj.songGroups().end(); ++it)
                allSongGroups[it->first] = std::make_pair(&grp, &it->second);

            for (auto it = proj.sfxGroups().begin(); it != proj.sfxGroups().end(); ++it)
                allSFXGroups[it->first] = std::make_pair(&grp, &it->second);
        }

        while (m_running)
        {
            m_groupId = -1;
            m_setupId = -1;

            /* Attempt loading song */
            std::vector<std::pair<amuse::SystemString, amuse::ContainerRegistry::SongData>> songs;
            if (m_argc > 2)
                songs = amuse::ContainerRegistry::LoadSongs(m_argv[2]);
            else
                songs = amuse::ContainerRegistry::LoadSongs(m_argv[1]);

            if (songs.size())
            {
                bool play = true;
                if (m_argc <= 2)
                {
                    bool prompt = true;
                    while (true)
                    {
                        if (prompt)
                        {
                            printf("Play Song? (Y/N): ");
                            prompt = false;
                        }
                        char userSel;
                        if (scanf("%c", &userSel) <= 0 || userSel == '\n')
                            continue;
                        userSel = tolower(userSel);
                        if (userSel == 'n')
                            play = false;
                        else if (userSel != 'y')
                        {
                            prompt = true;
                            continue;
                        }
                        break;
                    }
                }

                if (play)
                {
                    /* Get song selection from user */
                    if (songs.size() > 1)
                    {
                        /* Ask user to specify which song */
                        printf("Multiple Songs discovered:\n");
                        int idx = 0;
                        for (const auto& pair : songs)
                        {
                            const amuse::ContainerRegistry::SongData& sngData = pair.second;
                            int16_t grpId = sngData.m_groupId;
                            int16_t setupId = sngData.m_setupId;
                            if (sngData.m_groupId == -1 && sngData.m_setupId != -1)
                            {
                                for (const auto& pair : allSongGroups)
                                {
                                    for (const auto& setup : pair.second.second->m_midiSetups)
                                    {
                                        if (setup.first == sngData.m_setupId)
                                        {
                                            grpId = pair.first;
                                            break;
                                        }
                                    }
                                    if (grpId != -1)
                                        break;
                                }
                            }
                            amuse::Printf(_S("    %d %s (Group %d, Setup %d)\n"), idx++, pair.first.c_str(), grpId,
                                          setupId);
                        }

                        int userSel = 0;
                        printf("Enter Song Number: ");
                        if (scanf("%d", &userSel) <= 0)
                        {
                            Log.report(logvisor::Error, "unable to parse prompt");
                            exit(1);
                        }

                        if (userSel < songs.size())
                        {
                            m_arrData = &songs[userSel].second;
                            m_groupId = m_arrData->m_groupId;
                            m_setupId = m_arrData->m_setupId;
                        }
                        else
                        {
                            Log.report(logvisor::Error, "unable to find Song %d", userSel);
                            exit(1);
                        }
                    }
                    else if (songs.size() == 1)
                    {
                        m_arrData = &songs[0].second;
                        m_groupId = m_arrData->m_groupId;
                        m_setupId = m_arrData->m_setupId;
                    }
                }
            }

            /* Get group selection via setup search */
            if (m_groupId == -1 && m_setupId != -1)
            {
                for (const auto& pair : allSongGroups)
                {
                    for (const auto& setup : pair.second.second->m_midiSetups)
                    {
                        if (setup.first == m_setupId)
                        {
                            m_groupId = pair.first;
                            break;
                        }
                    }
                    if (m_groupId != -1)
                        break;
                }
            }

            /* Get group selection via user */
            if (m_groupId != -1)
            {
                if (allSongGroups.find(m_groupId) != allSongGroups.end())
                    m_sfxGroup = false;
                else if (allSFXGroups.find(m_groupId) != allSFXGroups.end())
                    m_sfxGroup = true;
                else
                {
                    Log.report(logvisor::Error, "unable to find Group %d", m_groupId);
                    exit(1);
                }
            }
            else if (totalGroups > 1)
            {
                /* Ask user to specify which group in project */
                printf("Multiple Audio Groups discovered:\n");
                for (const auto& pair : allSFXGroups)
                {
                    amuse::Printf(_S("    %d %s (SFXGroup)  %" PRISize " sfx-entries\n"), pair.first,
                                  pair.second.first->first.c_str(), pair.second.second->m_sfxEntries.size());
                }
                for (const auto& pair : allSongGroups)
                {
                    amuse::Printf(_S("    %d %s (SongGroup)  %" PRISize " normal-pages, %" PRISize
                                     " drum-pages, %" PRISize " MIDI-setups\n"),
                                  pair.first, pair.second.first->first.c_str(), pair.second.second->m_normPages.size(),
                                  pair.second.second->m_drumPages.size(), pair.second.second->m_midiSetups.size());
                }

                int userSel = 0;
                printf("Enter Group Number: ");
                if (scanf("%d", &userSel) <= 0)
                {
                    Log.report(logvisor::Error, "unable to parse prompt");
                    exit(1);
                }

                if (allSongGroups.find(userSel) != allSongGroups.end())
                {
                    m_groupId = userSel;
                    m_sfxGroup = false;
                }
                else if (allSFXGroups.find(userSel) != allSFXGroups.end())
                {
                    m_groupId = userSel;
                    m_sfxGroup = true;
                }
                else
                {
                    Log.report(logvisor::Error, "unable to find Group %d", userSel);
                    exit(1);
                }
            }
            else if (totalGroups == 1)
            {
                /* Load one and only group */
                if (allSongGroups.size())
                {
                    const auto& pair = *allSongGroups.cbegin();
                    m_groupId = pair.first;
                    m_sfxGroup = false;
                }
                else
                {
                    const auto& pair = *allSFXGroups.cbegin();
                    m_groupId = pair.first;
                    m_sfxGroup = true;
                }
            }
            else
            {
                Log.report(logvisor::Error, "empty project");
                exit(1);
            }

            /* Make final group selection */
            amuse::IntrusiveAudioGroupData* selData = nullptr;
            const amuse::SongGroupIndex* songIndex = nullptr;
            const amuse::SFXGroupIndex* sfxIndex = nullptr;
            auto songSearch = allSongGroups.find(m_groupId);
            if (songSearch != allSongGroups.end())
            {
                selData = &songSearch->second.first->second;
                songIndex = songSearch->second.second;
            }
            else
            {
                auto sfxSearch = allSFXGroups.find(m_groupId);
                if (sfxSearch != allSFXGroups.end())
                {
                    selData = &sfxSearch->second.first->second;
                    sfxIndex = sfxSearch->second.second;
                }
            }

            if (!selData)
            {
                Log.report(logvisor::Error, "unable to select audio group data");
                exit(1);
            }

            /* Build voice engine */
            std::unique_ptr<boo::IAudioVoiceEngine> voxEngine = boo::NewAudioVoiceEngine();
            m_booBackend.emplace(*voxEngine);
            m_engine.emplace(*m_booBackend, amuse::AmplitudeMode::PerSample);

            /* Load group into engine */
            const amuse::AudioGroup* group = m_engine->addAudioGroup(*selData);
            if (!group)
            {
                Log.report(logvisor::Error, "unable to add audio group");
                exit(1);
            }

            /* Enter playback loop */
            if (m_sfxGroup)
                SFXLoop(*sfxIndex, *voxEngine);
            else
                SongLoop(*songIndex, *voxEngine);

            m_engine = std::experimental::nullopt;
            m_booBackend = std::experimental::nullopt;
            printf("\n\n");
        }

        return 0;
    }

    void appQuitting(boo::IApplication*) { m_running = false; }

    AppCallback(int argc, const boo::SystemChar** argv)
    : m_argc(argc), m_argv(argv), m_eventRec(*this), m_events(m_eventRec)
    {
    }
};

void EventCallback::charKeyDown(unsigned long charCode, boo::EModifierKey mods, bool isRepeat)
{
    if (isRepeat)
        m_app.charKeyDownRepeat(charCode);
    else
        m_app.charKeyDown(charCode);
}

void EventCallback::charKeyUp(unsigned long charCode, boo::EModifierKey mods) { m_app.charKeyUp(charCode); }

void EventCallback::specialKeyDown(boo::ESpecialKey key, boo::EModifierKey mods, bool isRepeat)
{
    switch (key)
    {
    case boo::ESpecialKey::Left:
        m_app.m_wantsPrev = true;
        break;
    case boo::ESpecialKey::Right:
        m_app.m_wantsNext = true;
        break;
    case boo::ESpecialKey::Up:
        if (m_app.m_volume < 1.f)
            m_app.m_volume = amuse::clamp(0.f, m_app.m_volume + 0.05f, 1.f);
        m_app.m_engine->setVolume(m_app.m_volume);
        m_app.m_updateDisp = true;
        break;
    case boo::ESpecialKey::Down:
        if (m_app.m_volume > 0.f)
            m_app.m_volume = amuse::clamp(0.f, m_app.m_volume - 0.05f, 1.f);
        m_app.m_engine->setVolume(m_app.m_volume);
        m_app.m_updateDisp = true;
        break;
    case boo::ESpecialKey::Esc:
        m_app.m_breakout = true;
    default:
        break;
    }
}

void EventCallback::specialKeyUp(boo::ESpecialKey key, boo::EModifierKey mods) {}

void EventCallback::mouseDown(const boo::SWindowCoord& coord, boo::EMouseButton, boo::EModifierKey)
{
    m_tracking = true;
    m_app.m_pitchBend = amuse::clamp(-1.f, coord.norm[1] * 2.f - 1.f, 1.f);
    if (m_app.m_vox)
        m_app.m_vox->setPitchWheel(m_app.m_pitchBend);
    if (m_app.m_seq && m_app.m_chanId != -1)
        m_app.m_seq->setPitchWheel(m_app.m_chanId, m_app.m_pitchBend);
}

void EventCallback::mouseUp(const boo::SWindowCoord&, boo::EMouseButton, boo::EModifierKey)
{
    m_tracking = false;
    m_app.m_pitchBend = 0.f;
    if (m_app.m_vox)
        m_app.m_vox->setPitchWheel(m_app.m_pitchBend);
    if (m_app.m_seq && m_app.m_chanId != -1)
        m_app.m_seq->setPitchWheel(m_app.m_chanId, m_app.m_pitchBend);
}

void EventCallback::mouseMove(const boo::SWindowCoord& coord)
{
    if (m_tracking)
    {
        m_app.m_modulation = amuse::clamp(0.f, coord.norm[0], 1.f);
        if (m_app.m_vox)
            m_app.m_vox->setCtrlValue(1, m_app.m_modulation * 127.f);
        if (m_app.m_seq && m_app.m_chanId != -1)
            m_app.m_seq->setCtrlValue(m_app.m_chanId, 1, m_app.m_modulation * 127.f);

        m_app.m_pitchBend = amuse::clamp(-1.f, coord.norm[1] * 2.f - 1.f, 1.f);
        if (m_app.m_vox)
            m_app.m_vox->setPitchWheel(m_app.m_pitchBend);
        if (m_app.m_seq && m_app.m_chanId != -1)
            m_app.m_seq->setPitchWheel(m_app.m_chanId, m_app.m_pitchBend);
    }
}

#if _WIN32
int wmain(int argc, const boo::SystemChar** argv)
#else
int main(int argc, const boo::SystemChar** argv)
#endif
{
    logvisor::RegisterConsoleLogger();
    logvisor::RegisterStandardExceptions();
    AppCallback app(argc, argv);
    int ret = boo::ApplicationRun(boo::IApplication::EPlatformType::Auto, app, _S("amuseplay"), _S("Amuse Player"),
                                  argc, argv, false);
    printf("IM DYING!!\n");
    return ret;
}

#if _WIN32
#include <shellapi.h>
int APIENTRY wWinMain(HINSTANCE hInstance, HINSTANCE, LPWSTR lpCmdLine, int)
{
    int argc = 0;
    const boo::SystemChar** argv = (const wchar_t**)(CommandLineToArgvW(lpCmdLine, &argc));
    static boo::SystemChar selfPath[1024];
    GetModuleFileNameW(nullptr, selfPath, 1024);
    static const boo::SystemChar* booArgv[32] = {};
    booArgv[0] = selfPath;
    for (int i = 0; i < argc; ++i)
        booArgv[i + 1] = argv[i];

    logvisor::CreateWin32Console();
    SetConsoleOutputCP(65001);
    return wmain(argc + 1, booArgv);
}
#endif