/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2016 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_navigation.hpp"
//#include "ui_loadmodule.hpp"

#include "modules.h"

#include "portapack.hpp"
#include "event_m0.hpp"
#include "portapack_persistent_memory.hpp"
#include "bmp_splash.hpp"
#include "bmp_modal_warning.hpp"

#include "ui_about.hpp"
#include "ui_adsbtx.hpp"
#include "ui_bht_tx.hpp"
#include "ui_closecall.hpp"
#include "ui_debug.hpp"
#include "ui_encoders.hpp"
#include "ui_freqman.hpp"
#include "ui_jammer.hpp"
#include "ui_lcr.hpp"
#include "ui_morse.hpp"
#include "ui_numbers.hpp"
#include "ui_nuoptix.hpp"
#include "ui_rds.hpp"
#include "ui_sd_wipe.hpp"
#include "ui_setup.hpp"
#include "ui_soundboard.hpp"
#include "ui_whipcalc.hpp"
#include "ui_whistle.hpp"

#include "analog_audio_app.hpp"
#include "ais_app.hpp"
#include "ert_app.hpp"
#include "tpms_app.hpp"
#include "pocsag_app.hpp"
#include "capture_app.hpp"
#include "replay_app.hpp"

#include "core_control.hpp"

#include "file.hpp"
#include "png_writer.hpp"

namespace ui {

/* SystemStatusView ******************************************************/

SystemStatusView::SystemStatusView() {
	static constexpr Style style_systemstatus {
		.font = font::fixed_8x16,
		.background = Color::dark_grey(),
		.foreground = Color::white(),
	};
	
	add_children({
		&backdrop,
		&button_back,
		&title,
		&button_stealth,
		&button_textentry,
		&button_camera,
		&button_sleep,
		&sd_card_status_view,
	});
	
	title.set_style(&style_systemstatus);
	
	if (!portapack::persistent_memory::ui_config_textentry())
		button_textentry.set_bitmap(&bitmap_icon_keyboard);
	else
		button_textentry.set_bitmap(&bitmap_icon_unistroke);
	
	if (portapack::persistent_memory::stealth_mode())
		button_stealth.set_foreground(ui::Color::green());

	button_back.on_select = [this](ImageButton&){
		if (this->on_back)
			this->on_back();
	};
	
	button_stealth.on_select = [this](ImageButton&) {
		this->on_stealth();
	};
	
	button_textentry.on_select = [this](ImageButton&) {
		this->on_textentry();
	};

	button_camera.on_select = [this](ImageButton&) {
		this->on_camera();
	};

	button_sleep.on_select = [this](ImageButton&) {
		DisplaySleepMessage message;
		EventDispatcher::send_message(message);
	};
}

void SystemStatusView::set_back_enabled(bool new_value) {
	button_back.set_foreground(new_value ? Color::white() : Color::dark_grey());
	button_back.set_focusable(new_value);
}

void SystemStatusView::set_title(const std::string new_value) {
	if( new_value.empty() ) {
		title.set(default_title);
	} else {
		title.set(new_value);
	}
}

void SystemStatusView::on_stealth() {
	bool cfg;
	
	cfg = portapack::persistent_memory::stealth_mode();
	portapack::persistent_memory::set_stealth_mode(not cfg);
	
	if (!cfg)
		button_stealth.set_foreground(ui::Color::green());
	else
		button_stealth.set_foreground(ui::Color::light_grey());
	
	button_stealth.set_dirty();
}

void SystemStatusView::on_textentry() {
	uint8_t cfg;
	
	cfg = portapack::persistent_memory::ui_config_textentry();
	portapack::persistent_memory::set_config_textentry(cfg ^ 1);
	
	if (!cfg)
		button_textentry.set_bitmap(&bitmap_icon_unistroke);
	else
		button_textentry.set_bitmap(&bitmap_icon_keyboard);
}

void SystemStatusView::on_camera() {
	auto path = next_filename_stem_matching_pattern(u"SCR_????");
	if( path.empty() ) {
		return;
	}

	PNGWriter png;
	auto create_error = png.create(path.replace_extension(u".PNG"));
	if( create_error.is_valid() ) {
		return;
	}

	for(int i=0; i<320; i++) {
		std::array<ColorRGB888, 240> row;
		portapack::display.read_pixels({ 0, i, 240, 1 }, row);
		png.write_scanline(row);
	}
}

/* Navigation ************************************************************/

bool NavigationView::is_top() const {
	return view_stack.size() == 1;
}

View* NavigationView::push_view(std::unique_ptr<View> new_view) {
	free_view();

	const auto p = new_view.get();
	view_stack.emplace_back(std::move(new_view));

	update_view();

	return p;
}

void NavigationView::pop() {
	if( view() == modal_view ) {
		modal_view = nullptr;
	}

	// Can't pop last item from stack.
	if( view_stack.size() > 1 ) {
		free_view();

		view_stack.pop_back();

		update_view();
	}
}

void NavigationView::pop_modal() {
	if( view() == modal_view ) {
		modal_view = nullptr;
	}

	// Pop modal view + underlying app view
	if( view_stack.size() > 2 ) {
		free_view();
		view_stack.pop_back();
		free_view();
		view_stack.pop_back();

		update_view();
	}
}

void NavigationView::display_modal(
	const std::string& title,
	const std::string& message
) {
	display_modal(title, message, INFO, nullptr);
}

void NavigationView::display_modal(
	const std::string& title,
	const std::string& message,
	const modal_t type,
	const std::function<void(bool)> on_choice
) {
	/* If a modal view is already visible, don't display another */
	if( !modal_view ) {
		modal_view = push<ModalMessageView>(title, message, type, on_choice);
	}
}

void NavigationView::free_view() {
	remove_child(view());
}

void NavigationView::update_view() {
	const auto new_view = view_stack.back().get();
	
	add_child(new_view);
	new_view->set_parent_rect({ {0, 0}, size() });
	
	focus();
	set_dirty();

	if( on_view_changed ) {
		on_view_changed(*new_view);
	}
}

Widget* NavigationView::view() const {
	return children_.empty() ? nullptr : children_[0];
}

void NavigationView::focus() {
	if( view() ) {
		view()->focus();
	}
}

/* TranspondersMenuView **************************************************/

TranspondersMenuView::TranspondersMenuView(NavigationView& nav) {
	add_items<4>({ {
		{ "ADS-B: Planes", 			ui::Color::grey(),	&bitmap_icon_adsb,	[&nav](){ nav.push<NotImplementedView>(); }, },
		{ "AIS:   Boats", 			ui::Color::white(),	&bitmap_icon_ais,	[&nav](){ nav.push<AISAppView>(); } },
		{ "ERT:   Utility Meters", 	ui::Color::white(), &bitmap_icon_ert,	[&nav](){ nav.push<ERTAppView>(); } },
		{ "TPMS:  Cars", 			ui::Color::white(),	&bitmap_icon_tpms,	[&nav](){ nav.push<TPMSAppView>(); } },
	} });
	on_left = [&nav](){ nav.pop(); };
}

/* ReceiverMenuView ******************************************************/

ReceiverMenuView::ReceiverMenuView(NavigationView& nav) {
	add_items<6>({ {
	//	{ "AFSK", 					ui::Color::grey(),	nullptr,	[&nav](){ nav.push<NotImplementedView>(); } }, // AFSKRXView
		{ "Audio", 					ui::Color::green(),	nullptr,	[&nav](){ nav.push<AnalogAudioView>(); } },
		{ "CCIR", 					ui::Color::grey(),	nullptr,	[&nav](){ nav.push<NotImplementedView>(); } },
		{ "Nordic/BTLE", 			ui::Color::grey(),	&bitmap_icon_nordic,	[&nav](){ nav.push<NotImplementedView>(); } },
		{ "POCSAG", 				ui::Color::cyan(),	&bitmap_icon_pocsag,	[&nav](){ nav.push<POCSAGAppView>(); } },
		{ "SIGFOX", 				ui::Color::grey(),	&bitmap_icon_fox,		[&nav](){ nav.push<NotImplementedView>(); } }, // SIGFRXView
		{ "Transponders", 			ui::Color::green(),	nullptr,	[&nav](){ nav.push<TranspondersMenuView>(); } },
	} });
	on_left = [&nav](){ nav.pop(); };
}

/* TransmitterCodedMenuView ******************************************************/

TransmitterCodedMenuView::TransmitterCodedMenuView(NavigationView& nav) {
	add_items<7>({ {
		{ "ADS-B Mode S", 			ui::Color::orange(),&bitmap_icon_adsb,	[&nav](){ nav.push<ADSBTxView>(); } },
		{ "BHT Xy/EP", 				ui::Color::yellow(),&bitmap_icon_bht,	[&nav](){ nav.push<BHTView>(); } },
		{ "Morse beacon", 			ui::Color::yellow(),&bitmap_icon_morse,	[&nav](){ nav.push<MorseView>(); } },
		{ "Nuoptix DTMF timecode", 	ui::Color::green(),	&bitmap_icon_nuoptix,	[&nav](){ nav.push<NuoptixView>(); } },
		{ "OOK remote encoders", 	ui::Color::green(),	&bitmap_icon_remote,	[&nav](){ nav.push<EncodersView>(); } },
		{ "RDS",					ui::Color::green(),	&bitmap_icon_rds,	[&nav](){ nav.push<RDSView>(); } },
		{ "TEDI/LCR AFSK", 			ui::Color::green(), &bitmap_icon_lcr,	[&nav](){ nav.push<LCRView>(); } },
	} });
	on_left = [&nav](){ nav.pop(); };
}

/* TransmitterAudioMenuView ******************************************************/

TransmitterAudioMenuView::TransmitterAudioMenuView(NavigationView& nav) {
	add_items<4>({ {
		{ "Soundboard", 			ui::Color::green(), &bitmap_icon_soundboard,	[&nav](){ nav.push<SoundBoardView>(); } },
		{ "Numbers station",		ui::Color::green(),	&bitmap_icon_numbers,	[&nav](){ nav.push<NumbersStationView>(); } },
		{ "Microphone", 			ui::Color::grey(),	&bitmap_icon_microphone,	[&nav](){ nav.push<NotImplementedView>(); } },
		{ "Whistle", 				ui::Color::yellow(),&bitmap_icon_whistle,	[&nav](){ nav.push<WhistleView>(); } },
	} });
	on_left = [&nav](){ nav.pop(); };
}

/* UtilitiesView *****************************************************************/

UtilitiesView::UtilitiesView(NavigationView& nav) {
	add_items<4>({ {
		{ "Frequency manager", 		ui::Color::green(), nullptr,	[&nav](){ nav.push<FreqManView>(); } },
		{ "Whip antenna length",	ui::Color::yellow(),nullptr,	[&nav](){ nav.push<WhipCalcView>(); } },
		{ "Notepad",				ui::Color::grey(),	nullptr,	[&nav](){ nav.push<NotImplementedView>(); } },
		{ "Wipe SD card",			ui::Color::red(),	nullptr,	[&nav](){ nav.push<WipeSDView>(); } },
	} });
	on_left = [&nav](){ nav.pop(); };
}
/* SystemMenuView ********************************************************/

void SystemMenuView::hackrf_mode(NavigationView& nav) {
	nav.push<ModalMessageView>("Confirm", "Switch to HackRF mode ?", YESNO,
		[this](bool choice) {
			if (choice) {
				EventDispatcher::request_stop();
			}
		}
	);
}

SystemMenuView::SystemMenuView(NavigationView& nav) {
	add_items<12>({ {
		{ "Play dead",				ui::Color::red(),	&bitmap_icon_playdead,	[&nav](){ nav.push<PlayDeadView>(); } },
		{ "Receivers", 				ui::Color::cyan(),	&bitmap_icon_receivers,	[&nav](){ nav.push<ReceiverMenuView>(); } },
		{ "Capture",				ui::Color::cyan(),	&bitmap_icon_capture,	[&nav](){ nav.push<CaptureAppView>(); } },	//CaptureAppView
		{ "Replay",					ui::Color::grey(),	&bitmap_icon_replay,	[&nav](){ nav.push<NotImplementedView>(); } },
		{ "Code transmitters", 		ui::Color::green(),	&bitmap_icon_codetx,	[&nav](){ nav.push<TransmitterCodedMenuView>(); } },
		{ "Audio transmitters", 	ui::Color::green(),	&bitmap_icon_audiotx,	[&nav](){ nav.push<TransmitterAudioMenuView>(); } },
		{ "Close Call",				ui::Color::orange(),&bitmap_icon_closecall,	[&nav](){ nav.push<CloseCallView>(); } },
		{ "Jammer", 				ui::Color::orange(),&bitmap_icon_jammer,	[&nav](){ nav.push<JammerView>(); } },
		{ "Utilities",				ui::Color::purple(),nullptr,				[&nav](){ nav.push<UtilitiesView>(); } },
		{ "Setup", 					ui::Color::white(),	nullptr,				[&nav](){ nav.push<SetupMenuView>(); } },
		//{ "Debug", 					ui::Color::white(), nullptr,   				[&nav](){ nav.push<DebugMenuView>(); } },
		{ "HackRF mode", 			ui::Color::white(),	&bitmap_icon_hackrf,	[this, &nav](){ hackrf_mode(nav); } },
		{ "About", 					ui::Color::white(),	nullptr,				[&nav](){ nav.push<AboutView>(); } }
	} });
	
	set_highlighted(1);		// Startup selection is "Receivers"
}

/* SystemView ************************************************************/

static constexpr ui::Style style_default {
	.font = ui::font::fixed_8x16,
	.background = ui::Color::black(),
	.foreground = ui::Color::white()
};

SystemView::SystemView(
	Context& context,
	const Rect parent_rect
) : View { parent_rect },
	context_(context)
{
	set_style(&style_default);

	constexpr ui::Dim status_view_height = 16;
	
	add_child(&status_view);
	status_view.set_parent_rect({
		{ 0, 0 },
		{ parent_rect.width(), status_view_height }
	});
	status_view.on_back = [this]() {
		this->navigation_view.pop();
	};

	add_child(&navigation_view);
	navigation_view.set_parent_rect({
		{ 0, status_view_height },
		{ parent_rect.width(), static_cast<ui::Dim>(parent_rect.height() - status_view_height) }
	});
	navigation_view.on_view_changed = [this](const View& new_view) {
		this->status_view.set_back_enabled(!this->navigation_view.is_top());
		this->status_view.set_title(new_view.title());
	};

	// portapack::persistent_memory::set_playdead_sequence(0x8D1);
				
	// Initial view
	if ((portapack::persistent_memory::playing_dead() == 0x5920C1DF) ||		// Enable code
		(portapack::persistent_memory::ui_config() & 16)) {					// Login option
		navigation_view.push<PlayDeadView>();
	} else {
		if (portapack::persistent_memory::ui_config() & 1)
			navigation_view.push<BMPView>();
		else
			navigation_view.push<SystemMenuView>();
	}
}

Context& SystemView::context() const {
	return context_;
}

/* ***********************************************************************/

void BMPView::focus() {
	button_done.focus();
}

BMPView::BMPView(NavigationView& nav) {
	add_children({
		&text_info,
		&button_done
	});
	
	button_done.on_select = [this, &nav](Button&){
		nav.pop();
		nav.push<SystemMenuView>();
	};
}

void BMPView::paint(Painter&) {
	portapack::display.drawBMP({(240 - 185) / 2, 0}, splash_bmp, false);
}

/* PlayDeadView **********************************************************/

void PlayDeadView::focus() {
	button_seq_entry.focus();
}

void PlayDeadView::paint(Painter& painter) {
	if (!(portapack::persistent_memory::ui_config() & 16)) {
		// Blank the whole display
		painter.fill_rectangle(
			portapack::display.screen_rect(),
			style().background
		);
	}
}

PlayDeadView::PlayDeadView(NavigationView& nav) {
	rtc::RTC datetime;
	
	portapack::persistent_memory::set_playing_dead(0x5920C1DF);		// Enable
	
	add_children({
		&text_playdead1,
		&text_playdead2,
		&text_playdead3,
		&button_seq_entry,
	});
	
	// Seed from RTC
	rtcGetTime(&RTCD1, &datetime);
	text_playdead2.set("0x" + to_string_hex(lfsr_iterate(datetime.second()), 6) + "00");
	
	text_playdead3.hidden(true);
	
	button_seq_entry.on_dir = [this](Button&, KeyEvent key){
		sequence = (sequence << 3) | (static_cast<std::underlying_type<KeyEvent>::type>(key) + 1);
		return true;
	};
	
	button_seq_entry.on_select = [this, &nav](Button&){
		if (sequence == portapack::persistent_memory::playdead_sequence()) {
			portapack::persistent_memory::set_playing_dead(0x82175E23);		// Disable
			if (!(portapack::persistent_memory::ui_config() & 16)) {
				text_playdead3.hidden(false);
			} else {
				nav.pop();
				nav.push<SystemMenuView>();
			}
		} else {
			sequence = 0;
		}
	};
}

/* NotImplementedView ****************************************************/

NotImplementedView::NotImplementedView(NavigationView& nav) {
	button_done.on_select = [&nav](Button&){
		nav.pop();
	};

	add_children({
		&text_title,
		&button_done,
	});
}

void NotImplementedView::focus() {
	button_done.focus();
}

/* ModalMessageView ******************************************************/

ModalMessageView::ModalMessageView(
	NavigationView& nav,
	const std::string& title,
	const std::string& message,
	const modal_t type,
	const std::function<void(bool)> on_choice
) : title_ { title },
	type_ { type },
	on_choice_ { on_choice }
{
	add_child(&text_message);

	if (type == INFO) {
		add_child(&button_ok);
		
		button_ok.on_select = [&nav](Button&){
			nav.pop();
		};
	} else if (type == YESNO) {
		add_children({
			&button_yes,
			&button_no
		});
		
		button_yes.on_select = [this, &nav](Button&){
			if (on_choice_) on_choice_(true);
			nav.pop();
		};
		button_no.on_select = [this, &nav](Button&){
			if (on_choice_) on_choice_(false);
			nav.pop();
		};
	} else if (type == YESCANCEL) {
		add_children({
			&button_yes,
			&button_no
		});
		
		button_yes.on_select = [this, &nav](Button&){
			if (on_choice_) on_choice_(true);
			nav.pop();
		};
		button_no.on_select = [this, &nav](Button&){
			//if (on_choice_) on_choice_(false);
			nav.pop_modal();
		};
	} else {	// ABORT
		add_child(&button_ok);
		
		button_ok.on_select = [this, &nav](Button&){
			if (on_choice_) on_choice_(true);
			nav.pop_modal();
		};
	}
	
	const int text_message_width = message.size() * 8;
 	text_message.set_parent_rect({
 		(240 - text_message_width) / 2, 8 * 16,
 		text_message_width, 16
 	});
	text_message.set(message);
}

void ModalMessageView::paint(Painter&) {
	portapack::display.drawBMP({ 100, 64 }, modal_warning_bmp, false);
}

void ModalMessageView::focus() {
	if ((type_ == YESNO) || (type_ == YESCANCEL)) {
		button_yes.focus();
	} else {
		button_ok.focus();
	}
}

} /* namespace ui */