/*
 * 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.
 */

#include "ui_sigfrx.hpp"
#include "ui_receiver.hpp"

#include "ch.h"
#include "evtimer.h"

#include "ff.h"
#include "hackrf_gpio.hpp"
#include "portapack.hpp"
#include "radio.hpp"
//#include "fox_bmp.hpp"

#include "hackrf_hal.hpp"
#include "portapack_shared_memory.hpp"
#include "portapack_persistent_memory.hpp"

#include <cstring>
#include <stdio.h>

using namespace hackrf::one;

namespace ui {

void SIGFRXView::focus() {
	button_exit.focus();
}

SIGFRXView::~SIGFRXView() {
	receiver_model.disable();
}

void SIGFRXView::paint(Painter& painter) {
	uint8_t i, xp;
	
	//portapack::display.drawBMP({0, 302-160}, fox_bmp);
	portapack::display.fill_rectangle({0,16,240,160-16}, ui::Color::white());
	for (i = 0; i < 6; i++) {
		xp = sigfrx_marks[i*3];
		painter.draw_string({ (ui::Coord)sigfrx_marks[(i*3)+1], 144-20 }, style_white, to_string_dec_uint(sigfrx_marks[(i*3)+2]) );
		portapack::display.draw_line({xp, 144-4}, {xp, 144}, ui::Color::black());
	}
}

void SIGFRXView::on_channel_spectrum(const ChannelSpectrum& spectrum) {
	portapack::display.fill_rectangle({0, 144, 240, 4},ui::Color::white());
	
	uint8_t xmax = 0, imax = 0;
	size_t i;
	
	for (i=0; i<120; i++) {
		if (spectrum.db[i] > xmax) {
			xmax = spectrum.db[i];
			imax = i;
		}
	}
	for (i=136; i<256; i++) {
		if (spectrum.db[i-16] > xmax) {
			xmax = spectrum.db[i-16];
			imax = i-16;
		}
	}
	
	if ((imax >= last_channel-2) && (imax <= last_channel+2)) {
		if (detect_counter >= 5) {
			// Latched !
		} else {
			detect_counter++;
		}
	} else {
		if (detect_counter >= 5) text_channel.set("...        ");
		detect_counter = 0;
	}
	
	last_channel = imax;
	
	portapack::display.fill_rectangle({(ui::Coord)(imax-2), 144, 4, 4}, ui::Color::red());
}

void SIGFRXView::on_show() {
	context().message_map().register_handler(Message::ID::ChannelSpectrum,
		[this](const Message* const p) {
			this->on_channel_spectrum(reinterpret_cast<const ChannelSpectrumMessage*>(p)->spectrum);
		}
	);
}

SIGFRXView::SIGFRXView(
	NavigationView& nav,
	ReceiverModel& receiver_model
) : receiver_model(receiver_model)
{
	receiver_model.set_baseband_configuration({
		.mode = RX_SIGFOX,
		.sampling_rate = 3072000,
		.decimation_factor = 4,
	});
	receiver_model.set_baseband_bandwidth(1750000);
	
	receiver_model.set_tuning_frequency(868110000);
	
	receiver_model.set_lna(0);
	receiver_model.set_vga(0);
	
	add_children({ {
		&text_type,
		&text_channel,
		&text_data,
		&button_exit
	} });
	
	text_type.set_style(&style_white);
	text_channel.set_style(&style_white);
	text_data.set_style(&style_white);

	button_exit.on_select = [&nav](Button&){
		nav.pop();
	};
	
	receiver_model.enable();
	
}

} /* namespace ui */