/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2017 Furrtek
 *
 * 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 "ui_sonde.hpp"
#include "baseband_api.hpp"
#include "audio.hpp"
#include "app_settings.hpp"

#include "portapack.hpp"
#include <cstring>
#include <stdio.h>

using namespace portapack;

#include "string_format.hpp"
#include "complex.hpp"

void SondeLogger::on_packet(const sonde::Packet& packet) {
    const auto formatted = packet.symbols_formatted();
    log_file.write_entry(packet.received_at(), formatted.data);
}

namespace ui {

SondeView::SondeView(NavigationView& nav)
    : nav_{nav} {
    baseband::run_image(portapack::spi_flash::image_tag_sonde);

    add_children({&labels,
                  &field_frequency,
                  &field_rf_amp,
                  &field_lna,
                  &field_vga,
                  &rssi,
                  &field_volume,
                  &check_beep,
                  &check_log,
                  &check_crc,
                  &text_signature,
                  &text_serial,
                  &text_timestamp,
                  &text_voltage,
                  &text_frame,
                  &text_temp,
                  &text_humid,
                  &geopos,
                  &button_see_qr,
                  &button_see_map});

    if (!settings_.radio_loaded())
        field_frequency.set_value(initial_target_frequency);

    field_frequency.set_step(500);  // euquiq: was 10000, but we are using this for fine-tunning

    geopos.set_read_only(true);

    check_beep.on_select = [this](Checkbox&, bool v) {
        beep = v;
    };

    check_log.on_select = [this](Checkbox&, bool v) {
        logging = v;
    };

    check_crc.on_select = [this](Checkbox&, bool v) {
        use_crc = v;
    };

    receiver_model.enable();

    // QR code with geo URI
    button_see_qr.on_select = [this, &nav](Button&) {
        nav.push<QRCodeView>(geo_uri);
    };

    button_see_map.on_select = [this, &nav](Button&) {
        nav.push<GeoMapView>(
            sonde_id,
            gps_info.alt,
            GeoPos::alt_unit::METERS,
            gps_info.lat,
            gps_info.lon,
            999);  // set a dummy heading out of range to draw a cross...probably not ideal?
    };

    logger = std::make_unique<SondeLogger>();
    if (logger)
        logger->append(LOG_ROOT_DIR "/SONDE.TXT");

    audio::output::start();

    // inject a PitchRSSIConfigureMessage in order to arm
    // the pitch rssi events that will be used by the
    // processor:
    const PitchRSSIConfigureMessage message{true, 0};

    shared_memory.application_queue.push(message);

    baseband::set_pitch_rssi(0, true);
}

SondeView::~SondeView() {
    baseband::set_pitch_rssi(0, false);

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

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

// used to convert float to character pointer, since unfortunately function like
// sprintf and c_str aren't supported.
char* SondeView::float_to_char(float x, char* p) {
    char* s = p + 9;                             // go to end of buffer
    uint16_t decimals;                           // variable to store the decimals
    int units;                                   // variable to store the units (part to left of decimal place)
    if (x < 0) {                                 // take care of negative numbers
        decimals = (int)(x * -100000) % 100000;  // make 1000 for 3 decimals etc.
        units = (int)(-1 * x);
    } else {  // positive numbers
        decimals = (int)(x * 100000) % 100000;
        units = (int)x;
    }

    // TODO: more elegant solution (loop?)
    *--s = (decimals % 10) + '0';
    decimals /= 10;
    *--s = (decimals % 10) + '0';
    decimals /= 10;
    *--s = (decimals % 10) + '0';
    decimals /= 10;
    *--s = (decimals % 10) + '0';
    decimals /= 10;
    *--s = (decimals % 10) + '0';
    *--s = '.';

    while (units > 0) {
        *--s = (units % 10) + '0';
        units /= 10;
    }
    if (x < 0) *--s = '-';  // unary minus sign for negative numbers
    return s;
}

void SondeView::on_packet(const sonde::Packet& packet) {
    if (!use_crc || packet.crc_ok())  // euquiq: Reject bad packet if crc is on
    {
        char buffer_lat[10] = {};
        char buffer_lon[10] = {};

        strcpy(geo_uri, "geo:");
        strcat(geo_uri, float_to_char(gps_info.lat, buffer_lat));
        strcat(geo_uri, ",");
        strcat(geo_uri, float_to_char(gps_info.lon, buffer_lon));

        text_signature.set(packet.type_string());

        sonde_id = packet.serial_number();  // used also as tag on the geomap
        text_serial.set(sonde_id);

        text_timestamp.set(to_string_timestamp(packet.received_at()));

        text_voltage.set(unit_auto_scale(packet.battery_voltage(), 2, 2) + "V");

        text_frame.set(to_string_dec_uint(packet.frame(), 0));  // euquiq: integrate frame #, temp & humid.

        temp_humid_info = packet.get_temp_humid();
        if (temp_humid_info.humid != 0) {
            double decimals = abs(get_decimals(temp_humid_info.humid, 10, true));
            text_humid.set(to_string_dec_int((int)temp_humid_info.humid) + "." + to_string_dec_uint(decimals, 1) + "%");
        }

        if (temp_humid_info.temp != 0) {
            double decimals = abs(get_decimals(temp_humid_info.temp, 10, true));
            text_temp.set(to_string_dec_int((int)temp_humid_info.temp) + "." + to_string_dec_uint(decimals, 1) + STR_DEGREES_C);
        }

        gps_info = packet.get_GPS_data();

        geopos.set_altitude(gps_info.alt);
        geopos.set_lat(gps_info.lat);
        geopos.set_lon(gps_info.lon);

        if (logger && logging) {
            logger->on_packet(packet);
        }

        if (beep) {
            baseband::request_beep();
        }
    }
}

} /* namespace ui */