/*
 * 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_settings.hpp"

#include "ui_navigation.hpp"
#include "ui_touch_calibration.hpp"

#include "portapack_persistent_memory.hpp"
#include "lpc43xx_cpp.hpp"
using namespace lpc43xx;

#include "audio.hpp"
#include "portapack.hpp"
using portapack::receiver_model;
using namespace portapack;

#include "string_format.hpp"
#include "ui_font_fixed_8x16.hpp"
#include "cpld_update.hpp"

namespace ui {

SetDateTimeView::SetDateTimeView(
	NavigationView& nav
) {
	button_done.on_select = [&nav, this](Button&){
		const auto model = this->form_collect();
		const rtc::RTC new_datetime {
			model.year, model.month, model.day,
			model.hour, model.minute, model.second
		};
		rtcSetTime(&RTCD1, &new_datetime);
		nav.pop();
	},

	button_cancel.on_select = [&nav](Button&){
		nav.pop();
	},

	add_children({
		&labels,
		&field_year,
		&field_month,
		&field_day,
		&field_hour,
		&field_minute,
		&field_second,
		&button_done,
		&button_cancel,
	});

	rtc::RTC datetime;
	rtcGetTime(&RTCD1, &datetime);
	SetDateTimeModel model {
		datetime.year(),
		datetime.month(),
		datetime.day(),
		datetime.hour(),
		datetime.minute(),
		datetime.second()
	};

	form_init(model);
}

void SetDateTimeView::focus() {
	button_cancel.focus();
}

void SetDateTimeView::form_init(const SetDateTimeModel& model) {
	field_year.set_value(model.year);
	field_month.set_value(model.month);
	field_day.set_value(model.day);
	field_hour.set_value(model.hour);
	field_minute.set_value(model.minute);
	field_second.set_value(model.second);
}

SetDateTimeModel SetDateTimeView::form_collect() {
	return {
		.year = static_cast<uint16_t>(field_year.value()),
		.month = static_cast<uint8_t>(field_month.value()),
		.day = static_cast<uint8_t>(field_day.value()),
		.hour = static_cast<uint8_t>(field_hour.value()),
		.minute = static_cast<uint8_t>(field_minute.value()),
		.second = static_cast<uint8_t>(field_second.value())
	};
}

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

	const auto reference = portapack::clock_manager.get_reference();
	
	std::string source_name("---");
	switch(reference.source) {
	case ClockManager::ReferenceSource::Xtal:      source_name = "HackRF";    break;
	case ClockManager::ReferenceSource::PortaPack: source_name = "PortaPack"; break;
	case ClockManager::ReferenceSource::External:  source_name = "External";  break;
	}

	value_source.set(source_name);
	value_source_frequency.set(to_string_dec_uint(reference.frequency / 1000000, 2) + "." + to_string_dec_uint((reference.frequency % 1000000) / 100, 4, '0') + " MHz");

	label_source.set_style(&style_text);
	value_source.set_style(&style_text);
	value_source_frequency.set_style(&style_text);

	add_children({
		&label_source,
		&value_source,
		&value_source_frequency,
	});

	if( reference.source == ClockManager::ReferenceSource::Xtal ) {
		add_children({
			&labels_correction,
			&field_ppm,
		});
	}

	add_children({
		&check_clkout,
		&field_clkout_freq,
		&labels_clkout_khz,
		&value_freq_step,
		&labels_bias,
		&check_bias,
		&button_done,
		&button_cancel
	});

	SetFrequencyCorrectionModel model {
		static_cast<int8_t>(portapack::persistent_memory::correction_ppb() / 1000) , 0
	};

	form_init(model);

	check_clkout.set_value(portapack::persistent_memory::clkout_enabled());
	check_clkout.on_select = [this](Checkbox&, bool v) {
		clock_manager.enable_clock_output(v);
		portapack::persistent_memory::set_clkout_enabled(v);
		StatusRefreshMessage message { };
		EventDispatcher::send_message(message);
	};

	field_clkout_freq.set_value(portapack::persistent_memory::clkout_freq());
	value_freq_step.set_style(&style_text);

	field_clkout_freq.on_select = [this](NumberField&) {
		freq_step_khz++;
		if(freq_step_khz > 3) {
			freq_step_khz = 0;
		}
		switch(freq_step_khz) {
			case 0:
				value_freq_step.set("   |");
				break;
			case 1:
				value_freq_step.set("  | ");
				break;
			case 2:
				value_freq_step.set(" |  ");
				break;
			case 3:
				value_freq_step.set("|   ");
				break;
		}
		field_clkout_freq.set_step(pow(10, freq_step_khz));
	};

	check_bias.set_value(portapack::get_antenna_bias());
	check_bias.on_select = [this](Checkbox&, bool v) {
		portapack::set_antenna_bias(v);
		StatusRefreshMessage message { };
		EventDispatcher::send_message(message);
	};

	button_done.on_select = [this, &nav](Button&){
		const auto model = this->form_collect();
		portapack::persistent_memory::set_correction_ppb(model.ppm * 1000);
		portapack::persistent_memory::set_clkout_freq(model.freq);
		clock_manager.enable_clock_output(portapack::persistent_memory::clkout_enabled());
		nav.pop();
	};
}

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

void SetRadioView::form_init(const SetFrequencyCorrectionModel& model) {
	field_ppm.set_value(model.ppm);
}

SetFrequencyCorrectionModel SetRadioView::form_collect() {
	return {
		.ppm = static_cast<int8_t>(field_ppm.value()),
		.freq = static_cast<uint32_t>(field_clkout_freq.value()),
	};
}

/*
SetPlayDeadView::SetPlayDeadView(NavigationView& nav) {
	add_children({
		&text_sequence,
		&button_enter,
		&button_cancel
	});

	button_enter.on_select = [this, &nav](Button&){
		if (!entermode) {
			sequence = 0;
			keycount = 0;
			memset(sequence_txt, '-', 10);
			text_sequence.set(sequence_txt);
			entermode = true;
			button_cancel.hidden(true);
			set_dirty();
		} else {
			if (sequence == 0x8D1)	// U D L R
				nav.display_modal("Warning", "Default sequence entered !", ABORT, nullptr);
			else {
				persistent_memory::set_playdead_sequence(sequence);
				nav.pop();
			}
		}
	};
	
	button_enter.on_dir = [this](Button&, KeyEvent key){
		if ((entermode == true) && (keycount < 10)) {
			key_code = static_cast<std::underlying_type<KeyEvent>::type>(key);
			if (key_code == 0)
				sequence_txt[keycount] = 'R';
			else if (key_code == 1)
				sequence_txt[keycount] = 'L';
			else if (key_code == 2)
				sequence_txt[keycount] = 'D';
			else if (key_code == 3)
				sequence_txt[keycount] = 'U';
			text_sequence.set(sequence_txt);
			sequence = (sequence << 3) | (key_code + 1);
			keycount++;
			return true;
		}
		return false;
	};
	
	button_cancel.on_select = [&nav](Button&){ nav.pop(); };
}

void SetPlayDeadView::focus() {
	button_cancel.focus();
}
*/

SetUIView::SetUIView(NavigationView& nav) {
	add_children({
		//&checkbox_login,
		&checkbox_speaker,
		&checkbox_bloff,
		&options_bloff,
		&checkbox_showsplash,
		&button_ok
	});
	
	checkbox_speaker.set_value(persistent_memory::config_speaker());
	checkbox_showsplash.set_value(persistent_memory::config_splash());
	//checkbox_login.set_value(persistent_memory::config_login());
	
	uint32_t backlight_timer = persistent_memory::config_backlight_timer();
	
	if (backlight_timer) {
		checkbox_bloff.set_value(true);
		options_bloff.set_by_value(backlight_timer);
	} else {
		options_bloff.set_selected_index(0);
	}

	checkbox_speaker.on_select = [this](Checkbox&, bool v) {
    		if (v) audio::output::speaker_mute();		//Just mute audio if speaker is disabled

			persistent_memory::set_config_speaker(v);	//Store Speaker status

        StatusRefreshMessage message { };				//Refresh status bar with/out speaker
        EventDispatcher::send_message(message);
    };

	button_ok.on_select = [&nav, this](Button&) {
		if (checkbox_bloff.value())
			persistent_memory::set_config_backlight_timer(options_bloff.selected_index() + 1);
		else
			persistent_memory::set_config_backlight_timer(0);
		
		persistent_memory::set_config_splash(checkbox_showsplash.value());
		//persistent_memory::set_config_login(checkbox_login.value());
		nav.pop();
	};
}

void SetUIView::focus() {
	button_ok.focus();
}

SetAudioView::SetAudioView(NavigationView& nav) {
	add_children({
		&labels,
		&field_tone_mix,
		&button_ok
	});

	field_tone_mix.set_value(persistent_memory::tone_mix());
	
	button_ok.on_select = [&nav, this](Button&) {
		persistent_memory::set_tone_mix(field_tone_mix.value());
		nav.pop();
	};
}

void SetAudioView::focus() {
	field_tone_mix.focus();
}

/*void ModInfoView::on_show() {
	if (modules_nb) update_infos(0);
}

void ModInfoView::update_infos(uint8_t modn) {
	char info_str[27];
	char ch;
	uint8_t c;
	Point pos = { 0, 0 };
	Rect rect = { { 16, 144 }, { 208, 144 } };
	
	info_str[0] = 0;
	strcat(info_str, module_list[modn].name);
	text_namestr.set(info_str);
	
	info_str[0] = 0;
	strcat(info_str, to_string_dec_uint(module_list[modn].size).c_str());
	strcat(info_str, " bytes");
	text_sizestr.set(info_str);
	
	info_str[0] = 0;
	for (c = 0; c < 8; c++)
		strcat(info_str, to_string_hex(module_list[modn].md5[c], 2).c_str());
	text_md5_a.set(info_str);

	info_str[0] = 0;
	for (c = 8; c < 16; c++)
		strcat(info_str, to_string_hex(module_list[modn].md5[c], 2).c_str());
	text_md5_b.set(info_str);
	
	// TODO: Use ui_console
	display.fill_rectangle(rect, Color::black());
	
	const Font& font = font::fixed_8x16;
	const auto line_height = font.line_height();
	c = 0;
	while((ch = module_list[modn].description[c++])) {
		const auto glyph = font.glyph(ch);
		const auto advance = glyph.advance();
		if((pos.x + advance.x) > rect.width()) {
			pos.x = 0;
			pos.y += line_height;
		}
		const Point pos_glyph {
			static_cast<Coord>(rect.pos.x + pos.x),
			static_cast<Coord>(rect.pos.y + pos.y)
		};
		display.draw_glyph(pos_glyph, glyph, Color::white(), Color::black());
		pos.x += advance.x;
	}
}

ModInfoView::ModInfoView(NavigationView& nav) {
	const char magic[4] = {'P', 'P', 'M', ' '};
	UINT bw;
	uint8_t i;
	char read_buf[16];
	char info_str[25];
	FILINFO modinfo;
	FIL modfile;
	DIR rootdir;
	FRESULT res;
	uint8_t c;
	
	using option_t = std::pair<std::string, int32_t>;
	using options_t = std::vector<option_t>;
	option_t opt;
	options_t opts;
	
	static constexpr Style style_orange {
		.font = font::fixed_8x16,
		.background = Color::black(),
		.foreground = Color::orange(),
	};
	
	add_children({{
		&text_modcount,
		&text_name,
		&text_namestr,
		&text_size,
		&text_sizestr,
		&text_md5,
		&text_md5_a,
		&text_md5_b,
		&button_ok
	}});
	
	text_name.set_style(&style_orange);
	text_size.set_style(&style_orange);
	text_md5.set_style(&style_orange);

	// TODO: Find a way to merge this with m4_load_image() in m4_startup.cpp
	
	// Scan SD card root directory for files starting with the magic bytes
	c = 0;
	if (f_opendir(&rootdir, "/") == FR_OK) {
		for (;;) {
			res = f_readdir(&rootdir, &modinfo);
			if (res != FR_OK || modinfo.fname[0] == 0) break;	// Reached last file, abort
			// Only care about files with .bin extension
			if ((!(modinfo.fattrib & AM_DIR)) && (modinfo.fname[9] == 'B') && (modinfo.fname[10] == 'I') && (modinfo.fname[11] == 'N')) {
				f_open(&modfile, modinfo.fname, FA_OPEN_EXISTING | FA_READ);
				// Magic bytes check
				f_read(&modfile, &read_buf, 4, &bw);
				for (i = 0; i < 4; i++)
					if (read_buf[i] != magic[i]) break;
				if (i == 4) {
					memcpy(&module_list[c].filename, modinfo.fname, 8);
					module_list[c].filename[8] = 0;
					
					f_lseek(&modfile, 4);
					f_read(&modfile, &module_list[c].version, 2, &bw);
					f_lseek(&modfile, 6);
					f_read(&modfile, &module_list[c].size, 4, &bw);
					f_lseek(&modfile, 10);
					f_read(&modfile, &module_list[c].name, 16, &bw);
					f_lseek(&modfile, 26);
					f_read(&modfile, &module_list[c].md5, 16, &bw);
					f_lseek(&modfile, 42);
					f_read(&modfile, &module_list[c].description, 214, &bw);
					f_lseek(&modfile, 256);
					
					// Sanitize
					module_list[c].name[15] = 0;
					module_list[c].description[213] = 0;
					
					memcpy(info_str, module_list[c].filename, 16);
					strcat(info_str, "(V");
					strcat(info_str, to_string_dec_uint(module_list[c].version, 4, '0').c_str());
					strcat(info_str, ")");
					while(strlen(info_str) < 24)
						strcat(info_str, " ");
					
					opt = std::make_pair(info_str, c);
					opts.insert(opts.end(), opt);
					
					c++;
				}
				f_close(&modfile);
			}
			if (c == 8) break;
		}
	}
	f_closedir(&rootdir);
	
	modules_nb = c;

	if (modules_nb) {
		strcpy(info_str, "Found ");
		strcat(info_str, to_string_dec_uint(modules_nb, 1).c_str());
		strcat(info_str, " module(s)");
		
		text_modcount.set(info_str);
		option_modules.set_options(opts);
		
		add_child(&option_modules);
		
		option_modules.on_change = [this](size_t n, OptionsField::value_t v) {
			(void)n;
			update_infos(v);
		};
	} else {
		strcpy(info_str, "No modules found");
		text_modcount.set(info_str);
	}

	button_ok.on_select = [&nav,this](Button&){
		nav.pop();
	};
}

void ModInfoView::focus() {
	if (modules_nb)
		option_modules.focus();
	else
		button_ok.focus();
}*/

SettingsMenuView::SettingsMenuView(NavigationView& nav) {
	add_items({
		//{ "..", 			  ui::Color::light_grey(), &bitmap_icon_previous,		  [&nav](){ nav.pop(); } },
		{ "Audio", 			ui::Color::dark_cyan(), &bitmap_icon_speaker,			[&nav](){ nav.push<SetAudioView>(); } },
		{ "Radio",			ui::Color::dark_cyan(), &bitmap_icon_options_radio,		[&nav](){ nav.push<SetRadioView>(); } },
		{ "Interface", 		ui::Color::dark_cyan(), &bitmap_icon_options_ui,		[&nav](){ nav.push<SetUIView>(); } },
		//{ "SD card modules", ui::Color::dark_cyan(), 								  [&nav](){ nav.push<ModInfoView>(); } },
		{ "Date/Time",		ui::Color::dark_cyan(), &bitmap_icon_options_datetime,	[&nav](){ nav.push<SetDateTimeView>(); } },
		{ "Touchscreen",	ui::Color::dark_cyan(), &bitmap_icon_options_touch,		[&nav](){ nav.push<TouchCalibrationView>(); } },
		//{ "Play dead",	   ui::Color::dark_cyan(), &bitmap_icon_playdead,		  [&nav](){ nav.push<SetPlayDeadView>(); } }
	});
	set_max_rows(2); // allow wider buttons
}

} /* namespace ui */