/*
 * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2018 Furrtek
 * 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.
 */

#include "analog_tv_app.hpp"

#include "baseband_api.hpp"

#include "portapack.hpp"
#include "portapack_persistent_memory.hpp"
using namespace portapack;
using namespace tonekey;

#include "audio.hpp"
#include "file.hpp"

#include "utility.hpp"

#include "string_format.hpp"

namespace ui::external_app::analogtv {

/* AnalogTvView *******************************************************/

static const Style& style_options_group_new = Styles::bg_blue;

AnalogTvView::AnalogTvView(
    NavigationView& nav)
    : nav_(nav) {
    add_children({&rssi,
                  &channel,
                  &audio,
                  &field_frequency,
                  &field_lna,
                  &field_vga,
                  &options_modulation,
                  &field_volume,
                  &tv});

    field_frequency.on_show_options = [this]() {
        this->on_show_options_frequency();
    };

    field_lna.on_show_options = [this]() {
        this->on_show_options_rf_gain();
    };

    field_vga.on_show_options = [this]() {
        this->on_show_options_rf_gain();
    };

    const auto modulation = receiver_model.modulation();
    options_modulation.set_by_value(toUType(ReceiverModel::Mode::WidebandFMAudio));
    options_modulation.on_change = [this](size_t, OptionsField::value_t v) {
        this->on_modulation_changed(static_cast<ReceiverModel::Mode>(v));
    };
    options_modulation.on_show_options = [this]() {
        this->on_show_options_modulation();
    };

    tv.on_select = [this](int32_t offset) {
        field_frequency.set_value(receiver_model.target_frequency() + offset);
    };

    update_modulation(static_cast<ReceiverModel::Mode>(modulation));
    on_modulation_changed(ReceiverModel::Mode::WidebandFMAudio);
}

AnalogTvView::~AnalogTvView() {
    audio::output::stop();
    receiver_model.disable();
    baseband::shutdown();
}

void AnalogTvView::on_hide() {
    // TODO: Terrible kludge because widget system doesn't notify Waterfall that
    // it's being shown or hidden.
    tv.on_hide();
    View::on_hide();
}

void AnalogTvView::set_parent_rect(const Rect new_parent_rect) {
    View::set_parent_rect(new_parent_rect);

    const ui::Rect tv_rect{0, header_height, new_parent_rect.width(), new_parent_rect.height() - header_height};
    tv.set_parent_rect(tv_rect);
}

void AnalogTvView::focus() {
    field_frequency.focus();
}

void AnalogTvView::on_baseband_bandwidth_changed(uint32_t bandwidth_hz) {
    receiver_model.set_baseband_bandwidth(bandwidth_hz);
}

void AnalogTvView::on_modulation_changed(const ReceiverModel::Mode modulation) {
    // TODO: Terrible kludge because widget system doesn't notify Waterfall that
    // it's being shown or hidden.
    tv.on_hide();
    update_modulation(modulation);
    on_show_options_modulation();
    tv.on_show();
}

void AnalogTvView::remove_options_widget() {
    if (options_widget) {
        remove_child(options_widget.get());
        options_widget.reset();
    }

    field_lna.set_style(nullptr);
    options_modulation.set_style(nullptr);
    field_frequency.set_style(nullptr);
}

void AnalogTvView::set_options_widget(std::unique_ptr<Widget> new_widget) {
    remove_options_widget();

    if (new_widget) {
        options_widget = std::move(new_widget);
    } else {
        // TODO: Lame hack to hide options view due to my bad paint/damage algorithm.
        options_widget = std::make_unique<Rectangle>(options_view_rect, style_options_group_new.background);
    }
    add_child(options_widget.get());
}

void AnalogTvView::on_show_options_frequency() {
    auto widget = std::make_unique<FrequencyOptionsView>(options_view_rect, &style_options_group_new);

    widget->set_step(receiver_model.frequency_step());
    widget->on_change_step = [this](rf::Frequency f) {
        this->on_frequency_step_changed(f);
    };
    widget->set_reference_ppm_correction(persistent_memory::correction_ppb() / 1000);
    widget->on_change_reference_ppm_correction = [this](int32_t v) {
        this->on_reference_ppm_correction_changed(v);
    };

    set_options_widget(std::move(widget));
    field_frequency.set_style(&style_options_group_new);
}

void AnalogTvView::on_show_options_rf_gain() {
    auto widget = std::make_unique<RadioGainOptionsView>(options_view_rect, &style_options_group_new);

    set_options_widget(std::move(widget));
    field_lna.set_style(&style_options_group_new);
}

void AnalogTvView::on_show_options_modulation() {
    std::unique_ptr<Widget> widget;

    static_cast<ReceiverModel::Mode>(receiver_model.modulation());
    tv.show_audio_spectrum_view(true);

    set_options_widget(std::move(widget));
    options_modulation.set_style(&style_options_group_new);
}

void AnalogTvView::on_frequency_step_changed(rf::Frequency f) {
    receiver_model.set_frequency_step(f);
    field_frequency.set_step(f);
}

void AnalogTvView::on_reference_ppm_correction_changed(int32_t v) {
    persistent_memory::set_correction_ppb(v * 1000);
}

void AnalogTvView::update_modulation(const ReceiverModel::Mode modulation) {
    audio::output::mute();

    baseband::shutdown();

    // portapack::spi_flash::image_tag_t image_tag; //moved to ext app, disabled
    // image_tag = portapack::spi_flash::image_tag_am_tv;

    // baseband::run_image(image_tag);
    baseband::run_prepared_image(portapack::memory::map::m4_code.base());  // moved the baseband too

    receiver_model.set_modulation(modulation);
    receiver_model.set_sampling_rate(2000000);
    receiver_model.set_baseband_bandwidth(2000000);
    receiver_model.enable();
}

}  // namespace ui::external_app::analogtv