/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2020 Shao
 *
 * This file is part of PortaPack.
 *
 * 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, 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; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#ifndef __UI_TV_H__
#define __UI_TV_H__

#include "ui.hpp"
#include "ui_widget.hpp"

#include "event_m0.hpp"

#include "message.hpp"

#include <cstdint>
#include <cstddef>

namespace ui {
namespace tv {

class TimeScopeView : public View {
   public:
    TimeScopeView(const Rect parent_rect);

    void paint(Painter& painter) override;

    void on_audio_spectrum(const AudioSpectrum* spectrum);

   private:
    static constexpr int cursor_band_height = 4;

    int16_t audio_spectrum[128]{0};

    /*Labels labels {
                { { 6 * 8, 0 * 16 }, "Hz", Theme::getInstance()->fg_light->foreground }
        };*/
    /*
        NumberField field_frequency {
                { 0 * 8, 0 * 16 },
                5,
                { 0, 48000 },
                48000 / 240,
                ' '
        };*/

    Waveform waveform{
        {0, 1 * 16 + cursor_band_height, 30 * 8, 2 * 16},
        audio_spectrum,
        128,
        0,
        false,
        Theme::getInstance()->bg_darkest->foreground};
};

class TVView : public Widget {
   public:
    void on_show() override;
    void on_hide() override;

    void paint(Painter& painter) override;
    void on_channel_spectrum(const ChannelSpectrum& spectrum);
    void on_adjust_xcorr(uint8_t xcorr);
    // ui::Color video_buffer[13312];
    uint8_t video_buffer_int[13312 + 128]{0};  // 128 is for the over length caused by x_correction
    uint32_t count = 0;
    uint8_t x_correction = 0;

   private:
    void clear();
};

class TVWidget : public View {
   public:
    std::function<void(int32_t offset)> on_select{};

    TVWidget();

    TVWidget(const TVWidget&) = delete;
    TVWidget(TVWidget&&) = delete;
    TVWidget& operator=(const TVWidget&) = delete;
    TVWidget& operator=(TVWidget&&) = delete;

    void on_show() override;
    void on_hide() override;

    void set_parent_rect(const Rect new_parent_rect) override;

    void show_audio_spectrum_view(const bool show);

    void paint(Painter& painter) override;
    NumberField field_xcorr{
        {0 * 8, 0 * 16},
        5,
        {0, 128},
        1,
        ' '};

   private:
    void update_widgets_rect();

    const Rect audio_spectrum_view_rect{0 * 8, 0 * 16, 30 * 8, 2 * 16 + 20};
    static constexpr Dim audio_spectrum_height = 16 * 2 + 20;
    static constexpr Dim scale_height = 20;

    TVView tv_view{};

    ChannelSpectrumFIFO* channel_fifo{nullptr};
    AudioSpectrum* audio_spectrum_data{nullptr};
    bool audio_spectrum_update{false};

    std::unique_ptr<TimeScopeView> audio_spectrum_view{};

    int sampling_rate{0};
    int32_t cursor_position{0};
    ui::Rect tv_normal_rect{};
    ui::Rect tv_reduced_rect{};

    MessageHandlerRegistration message_handler_channel_spectrum_config{
        Message::ID::ChannelSpectrumConfig,
        [this](const Message* const p) {
            const auto message = *reinterpret_cast<const ChannelSpectrumConfigMessage*>(p);
            this->channel_fifo = message.fifo;
        }};
    MessageHandlerRegistration message_handler_audio_spectrum{
        Message::ID::AudioSpectrum,
        [this](const Message* const p) {
            const auto message = *reinterpret_cast<const AudioSpectrumMessage*>(p);
            this->audio_spectrum_data = message.data;
            this->audio_spectrum_update = true;
        }};
    MessageHandlerRegistration message_handler_frame_sync{
        Message::ID::DisplayFrameSync,
        [this](const Message* const) {
            if (this->channel_fifo) {
                ChannelSpectrum channel_spectrum;
                while (channel_fifo->out(channel_spectrum)) {
                    this->on_channel_spectrum(channel_spectrum);
                }
            }
            if (this->audio_spectrum_update) {
                this->audio_spectrum_update = false;
                this->on_audio_spectrum();
            }
        }};

    void on_channel_spectrum(const ChannelSpectrum& spectrum);
    void on_audio_spectrum();
};

} /* namespace tv */
} /* namespace ui */

#endif /*__UI_TV_H__*/