/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 *
 * 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 __TPMS_APP_H__
#define __TPMS_APP_H__

#include "ui_widget.hpp"
#include "ui_navigation.hpp"
#include "ui_receiver.hpp"
#include "ui_rssi.hpp"
#include "ui_channel.hpp"
#include "app_settings.hpp"
#include "event_m0.hpp"

#include "log_file.hpp"

#include "recent_entries.hpp"

#include "tpms_packet.hpp"

namespace std {

constexpr bool operator==(const tpms::TransponderID& lhs, const tpms::TransponderID& rhs) {
    return (lhs.value() == rhs.value());
}

} /* namespace std */

struct TPMSRecentEntry {
    using Key = std::pair<tpms::Reading::Type, tpms::TransponderID>;

    static const Key invalid_key;

    tpms::Reading::Type type{invalid_key.first};
    tpms::TransponderID id{invalid_key.second};

    size_t received_count{0};

    Optional<Pressure> last_pressure{};
    Optional<Temperature> last_temperature{};
    Optional<tpms::Flags> last_flags{};

    TPMSRecentEntry(
        const Key& key)
        : type{key.first},
          id{key.second} {
    }

    Key key() const {
        return {type, id};
    }

    void update(const tpms::Reading& reading);
};

using TPMSRecentEntries = RecentEntries<TPMSRecentEntry>;

class TPMSLogger {
   public:
    Optional<File::Error> append(const std::filesystem::path& filename) {
        return log_file.append(filename);
    }

    void on_packet(const tpms::Packet& packet, const uint32_t target_frequency);

   private:
    LogFile log_file{};
};

namespace ui {

using TPMSRecentEntriesView = RecentEntriesView<TPMSRecentEntries>;

class TPMSAppView : public View {
   public:
    TPMSAppView(NavigationView& nav);
    ~TPMSAppView();

    void set_parent_rect(const Rect new_parent_rect) override;

    // Prevent painting of region covered entirely by a child.
    // TODO: Add flag to View that specifies view does not need to be cleared before painting.
    void paint(Painter&) override{};

    void focus() override;

    std::string title() const override { return "TPMS RX"; };

   private:
    static constexpr uint32_t initial_target_frequency = 315000000;
    static constexpr uint32_t sampling_rate = 2457600;
    static constexpr uint32_t baseband_bandwidth = 1750000;

    // app save settings
    std::app_settings settings{};
    std::app_settings::AppSettings app_settings{};

    MessageHandlerRegistration message_handler_packet{
        Message::ID::TPMSPacket,
        [this](Message* const p) {
            const auto message = static_cast<const TPMSPacketMessage*>(p);
            const tpms::Packet packet{message->packet, message->signal_type};
            this->on_packet(packet);
        }};

    static constexpr ui::Dim header_height = 1 * 16;

    ui::Rect view_normal_rect{};

    RSSI rssi{
        {21 * 8, 0, 6 * 8, 4},
    };

    Channel channel{
        {21 * 8, 5, 6 * 8, 4},
    };

    OptionsField options_band{
        {0 * 8, 0 * 16},
        3,
        {
            {"315", 315000000},
            {"433", 433920000},
        }};

    OptionsField options_pressure{
        {5 * 8, 0 * 16},
        3,
        {{"kPa", 0},
         {"PSI", 1}}};

    OptionsField options_temperature{
        {9 * 8, 0 * 16},
        1,
        {{"C", 0},
         {"F", 1}}};

    RFAmpField field_rf_amp{
        {13 * 8, 0 * 16}};

    LNAGainField field_lna{
        {15 * 8, 0 * 16}};

    VGAGainField field_vga{
        {18 * 8, 0 * 16}};

    TPMSRecentEntries recent{};
    std::unique_ptr<TPMSLogger> logger{};

    const RecentEntriesColumns columns{{
        {"Tp", 2},
        {"ID", 8},
        {"Pres", 4},
        {"Temp", 4},
        {"Cnt", 3},
        {"Fl", 2},
    }};
    TPMSRecentEntriesView recent_entries_view{columns, recent};

    uint32_t target_frequency_ = initial_target_frequency;

    void on_packet(const tpms::Packet& packet);
    void on_show_list();
    void update_view();

    void on_band_changed(const uint32_t new_band_frequency);

    uint32_t target_frequency() const;
    void set_target_frequency(const uint32_t new_value);

    uint32_t tuning_frequency() const;
};

} /* namespace ui */

#endif /*__TPMS_APP_H__*/