/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2018 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.hpp"
#include "receiver_model.hpp"
#include "ui_receiver.hpp"
#include "ui_font_fixed_8x16.hpp"
#include "freqman.hpp"
#include "analog_audio_app.hpp"
#include "audio.hpp"
#include "ui_mictx.hpp"
#include "portapack_persistent_memory.hpp"
#include "baseband_api.hpp"
#include "string_format.hpp"
#include "file.hpp"

#define SCANNER_SLEEP_MS			50	//ms that Scanner Thread sleeps per loop
#define STATISTICS_UPDATES_PER_SEC	10
#define MAX_FREQ_LOCK				10 	//# of 50ms cycles scanner locks into freq when signal detected, to verify signal is not spureous

namespace ui {

class ScannerThread {
public:
	ScannerThread(std::vector<rf::Frequency> frequency_list);
	ScannerThread(const jammer::jammer_range_t& frequency_range, size_t def_step_hz);
	~ScannerThread();

	void set_scanning(const bool v);
	bool is_scanning();

	void set_freq_lock(const uint32_t v);
	uint32_t is_freq_lock();

	void set_freq_del(const rf::Frequency v);
	void set_index_stepper(const int32_t v);
	void set_scanning_direction(bool fwd);

	void stop();

	ScannerThread(const ScannerThread&) = delete;
	ScannerThread(ScannerThread&&) = delete;
	ScannerThread& operator=(const ScannerThread&) = delete;
	ScannerThread& operator=(ScannerThread&&) = delete;

private:
	std::vector<rf::Frequency> frequency_list_ { };
	jammer::jammer_range_t frequency_range_ {false, 0, 0};
	size_t	def_step_hz_ { 0 };
	Thread* thread { nullptr };
	
	bool _scanning { true };
	bool _manual_search { false };
	uint32_t _freq_lock { 0 };
	rf::Frequency _freq_del { 0 };
	uint32_t _freq_idx { 0 };
	int32_t _stepper { 1 };
	int32_t _index_stepper { 0 };
	static msg_t static_fn(void* arg);
	void run();
	void create_thread();
};

class ScannerView : public View {
public:
	ScannerView(NavigationView& nav);
	~ScannerView();
	
	void focus() override;

	const Style style_grey {		// scanning
		.font = font::fixed_8x16,
		.background = Color::black(),
		.foreground = Color::grey(),
	};
	
	const Style style_yellow {		//Found signal
		.font = font::fixed_8x16,
		.background = Color::black(),
		.foreground = Color::dark_yellow(),
	};

	const Style style_green {		//Found signal
		.font = font::fixed_8x16,
		.background = Color::black(),
		.foreground = Color::green(),
	};

	const Style style_red {		//erasing freq
		.font = font::fixed_8x16,
		.background = Color::black(),
		.foreground = Color::red(),
	};

	std::string title() const override { return "Scanner"; };
	std::vector<rf::Frequency> frequency_list{ };
	std::vector<string> description_list { };

//void set_parent_rect(const Rect new_parent_rect) override;

private:
	NavigationView& nav_;

	void start_scan_thread();
	void change_mode(freqman_index_t mod_type);
	void show_max_index();
	void scan_pause();
	void scan_resume();
	void user_resume();
	void frequency_file_load(std::string file_name, bool stop_all_before = false);
	void bigdisplay_update(int32_t);
	void update_squelch_while_paused(int32_t max_db);
	void on_statistics_update(const ChannelStatistics& statistics);
	void on_headphone_volume_changed(int32_t v);
	void handle_retune(int64_t freq, uint32_t freq_idx);

	jammer::jammer_range_t frequency_range { false, 0, 0 };  //perfect for manual scan task too...
	int32_t squelch { 0 };
	uint32_t browse_timer { 0 };
	uint32_t lock_timer { 0 };
	uint32_t color_timer { 0 };
	int32_t bigdisplay_current_color { -2 };
	rf::Frequency bigdisplay_current_frequency { 0 };
	uint32_t browse_wait { 0 };
	uint32_t lock_wait { 0 };
	freqman_db database { };
	std::string loaded_file_name;
	uint32_t current_index { 0 };
	rf::Frequency current_frequency { 0 };
	bool userpause { false };
	bool manual_search { false };
	bool fwd { true };						//to preserve direction setting even if scan_thread restarted

	enum bigdisplay_color_type {
		BDC_GREY,
		BDC_YELLOW,
		BDC_GREEN,
		BDC_RED
	 };
	
	std::string desc_freq_range_search = "SEARCHING...";
	std::string desc_freq_list_scan    = "";

	Labels labels {
		{ { 0 * 8, 0 * 16 }, "LNA:   VGA:   AMP:  VOL:", Color::light_grey() },
		{ { 0 * 8, 1 * 16 }, "BW:       SQ:    Wsa:   Wsl:", Color::light_grey() },
		{ { 0 * 8, 10 * 16 }, "SRCH START  SEARCH END  SWITCH", Color::light_grey() },

		{ { 0 * 8, (26 * 8) + 4 }, "MODE:", Color::light_grey() },
		{ { 11 * 8, (26 * 8) + 4 }, "STEP:", Color::light_grey() },
	};
	
	LNAGainField field_lna {
		{ 4 * 8, 0 * 16 }
	};

	VGAGainField field_vga {
		{ 11 * 8, 0 * 16 }
	};
	
	RFAmpField field_rf_amp {
		{ 18 * 8, 0 * 16 }
	};
	
	NumberField field_volume {
		{ 24 * 8, 0 * 16 },
		2,
		{ 0, 99 },
		1,
		' ',
	};

	OptionsField field_bw {
		{ 3 * 8, 1 * 16 },
		6,
		{ }
	};		

	NumberField field_squelch {
		{ 13 * 8, 1 * 16 },
		3,
 		{ -90, 20 },
		1,
		' ',
	};

	NumberField field_browse_wait {	//Signal-Active wait timer - time to wait before moving on even when signal locked
		{ 21 * 8, 1 * 16 },
		2,
		{ 0, 99 },
		1,
		' ',
	};

	NumberField field_lock_wait {	//Signal-Lost wait timer - time to wait before moving on after losing signal lock
		{ 28 * 8, 1 * 16 },
		2,
		{ 0, 99 },
		1,
		' ',
	};

	RSSI rssi {
		{ 0 * 16, 2 * 16, 15 * 16, 8 },
	}; 

	Text text_current_index {
		{ 0, 3 * 16, 3 * 8, 16 },  
	};

	Text text_max_index {
		{ 4 * 8, 3 * 16, 18 * 8, 16 },  
	};
	
	Text desc_current_index {
		{0, 4 * 16, 240 - 6 * 8, 16 },
	};

	BigFrequency big_display {		//Show frequency in glamour
		{ 4, 6 * 16, 28 * 8, 52 },
		0
	};

	Button button_manual_start {
		{ 0 * 8, 11 * 16, 11 * 8, 28 },
		""
	};

	Button button_manual_end {
		{ 12 * 8, 11 * 16, 11 * 8, 28 },
		""
	};

	Button button_manual_search {
		{ 24 * 8, 11 * 16, 6 * 8, 28 },
		""
	};

	OptionsField field_mode {
		{ 5 * 8, (26 * 8) + 4 },
		6,
		{ }		//Text strings get filled by freqman_set_modulation_option()
	};

	OptionsField field_step {
		{ 17 * 8, (26 * 8) + 4 },
		12,
		{ }		//Text strings get filled by freqman_set_step_option()
	};

	ButtonWithEncoder button_pause {
		{ 0, (15 * 16) - 4, 72, 28 },
		"<PAUSE>"
	};

	Button button_dir {
		{ 0,  (35 * 8) - 4, 72, 28 },
		"REVERSE"
	};

	Button button_audio_app {
		{ 84, (15 * 16) - 4, 72, 28 },
		"AUDIO"
	};

	Button button_mic_app {
		{ 84,  (35 * 8) - 4, 72, 28 },
		"MIC TX"
	};

	Button button_add {
		{ 168, (15 * 16) - 4, 72, 28 },
		"ADD FQ"
	};

	Button button_load {
		{ 24 * 8, 3 * 16 - 10, 6 * 8, 22 },
		"LOAD"
	};

	Button button_clear {
		{ 24 * 8, 4 * 16, 6 * 8, 22 },
		"MCLR"
	};

	Button button_remove {
		{ 168, (35 * 8) - 4, 72, 28 },
		"DEL FQ"
	};
	
	std::unique_ptr<ScannerThread> scan_thread { };
	
	MessageHandlerRegistration message_handler_retune {
		Message::ID::Retune,
		[this](const Message* const p) {
			const auto message = *reinterpret_cast<const RetuneMessage*>(p);
			this->handle_retune(message.freq, message.range);
		}
	};
	
	MessageHandlerRegistration message_handler_stats {
		Message::ID::ChannelStatistics,
		[this](const Message* const p) {
			this->on_statistics_update(static_cast<const ChannelStatisticsMessage*>(p)->statistics);
		}
	};
};

} /* namespace ui */