#include <user_config.h>
#include <SmingCore/SmingCore.h>
#include <Libraries/DHT/DHT.h>

///////////////////////////////////////////////////////////////////
// Set your SSID & Pass for initial configuration
#include "../include/configuration.h" // application configuration
///////////////////////////////////////////////////////////////////

#include "max7219.h"
#include "webserver.h"

DHT dht(DHT_PIN, DHT22);

Timer procTimer;
//Timer serialTimer;
Timer displayTimer;

bool state = false;
// Sensors string values
String StrT, StrRH, StrHI, StrCR, StrCF;
String oldStrTime, StrTime;
String StrVDD, StrADC;

// date and time
uint16_t Year, Month, Day, Hour, Minute, Second;

Timer httpcTimer;
HttpClient thingSpeak;

/* FTPServer ftp; */

void process();
//void showValues();
void connectOk();
void connectFail();
void onDataSent(HttpClient& client, bool successful);
void sendData();
void onNtpReceive(NtpClient& client, time_t timestamp);
void showTime();

NtpClient ntpClient ("ntps1-0.cs.tu-berlin.de", 60, onNtpReceive);


void init()
{
	spiffs_mount(); // Mount file system, in order to work with files

	Serial.begin(SERIAL_BAUD_RATE); // 115200 by default
	Serial.systemDebugOutput(false); // Debug output to serial
	Serial.println("Wall Segment Clock");

	ActiveConfig = loadConfig();

	// Select control line
	pinMode(CONTROL_PIN, OUTPUT);
	digitalWrite(CONTROL_PIN, LOW);

	// Restart main screen output
//	procTimer.restart();
//	serialTimer.stop();

	//wait for sensor startup
	delay(1000);
	// DHT sensor start
	dht.begin();

	// 7-segment output
	MAX7219_Init();

	// set timezone hourly difference to UTC
	SystemClock.setTimeZone(ActiveConfig.AddTZ);

	WifiStation.config(ActiveConfig.NetworkSSID, ActiveConfig.NetworkPassword);
	WifiStation.enable(true);
	WifiAccessPoint.enable(false);

	WifiStation.waitConnection(connectOk, 20, connectFail); // We recommend 20+ seconds for connection timeout at start

	// раз в минуту?
	procTimer.initializeMs(60000, process).start();
	process();

	// обновление экрана два раза в секунду
	displayTimer.initializeMs(500, showTime).start();
}

void showTime()
{
	static uint16_t oldHour, oldMinute;

	StrTime = SystemClock.getSystemTimeString();

	if (oldStrTime != StrTime)
	{
		Vector<String> datetime;
		int idx = splitString(StrTime, ' ' , datetime);
		if (idx == 2)
		{
			// date
			Vector<String> date;
			int di = splitString(datetime[0], '-', date);
			if(di == 3)
			{
				Year = date[0].toInt();
				Month = date[1].toInt();
				Day = date[2].toInt();
			}
			// time
			Vector<String> time;
			int ti = splitString(datetime[1], ':', time);
			if(ti == 3)
			{
				Hour = time[0].toInt();
				Minute = time[1].toInt();
				Second = time[2].toInt();
			}
		}

		oldStrTime = StrTime;
		MAX7219_writeData(MAX7219_DIGIT2, SYM_Minus);
		if (oldMinute != Minute)
		{
			oldMinute = Minute;
			MAX7219_writeData(MAX7219_DIGIT3, Minute/10);
			MAX7219_writeData(MAX7219_DIGIT4, Minute%10);
			if (oldHour != Hour)
			{
				oldHour = Hour;
				MAX7219_writeData(MAX7219_DIGIT0, Hour/10);
				MAX7219_writeData(MAX7219_DIGIT1, Hour%10);
			}
		}
	}
	else // time the same, output blank for "hh mm"
	{
		MAX7219_writeData(MAX7219_DIGIT2, SYM_Minus);
	}

}

void process()
{
	float t = dht.readTemperature() + ActiveConfig.AddT;
	float h = dht.readHumidity() + ActiveConfig.AddRH;
	float hi = dht.getHeatIndex();
	ComfortState cf;
	float cr = dht.getComfortRatio(cf);

	if (ActiveConfig.Trigger == eTT_Temperature)
		state = t < ActiveConfig.RangeMin || t > ActiveConfig.RangeMax;
	else if (ActiveConfig.Trigger == eTT_Humidity)
		state = h < ActiveConfig.RangeMin || h > ActiveConfig.RangeMax;

	digitalWrite(CONTROL_PIN, state);
	StrT = String(t, 0);
	StrRH = String(h, 0);
	StrHI = String(hi, 0);
	StrCR = String(cr, 0);
	switch(cf)
	{
	case Comfort_OK:
		StrCF = "OK";
		break;
	case Comfort_TooHot:
		StrCF = "Too Hot";
		break;
	case Comfort_TooCold:
		StrCF = "Too Cold";
		break;
	case Comfort_TooDry:
		StrCF = "Too Dry";
		break;
	case Comfort_TooHumid:
		StrCF = "Too Humid";
		break;
	case Comfort_HotAndHumid:
		StrCF = "Hot And Humid";
		break;
	case Comfort_HotAndDry:
		StrCF = "Hot And Dry";
		break;
	case Comfort_ColdAndHumid:
		StrCF = "Cold And Humid";
		break;
	case Comfort_ColdAndDry:
		StrCF = "Cold And Dry";
		break;
	default:
		StrCF = "Unknown:";
		break;
	}

	StrADC = String(system_adc_read());
	StrVDD = String(system_get_vdd33());
}

/*
void startFTP()
{
	// Start FTP server
	ftp.listen(21);
	ftp.addUser("user", "resu"); // FTP account
	// You can also use special FTP comand: "fsformat" for clearing file system (for example from TotalCMD)
}
*/

void connectOk()
{
//	debugf("connected");
	WifiAccessPoint.enable(false);
	Serial.print("I'm connecteed. IP: ");
	Serial.println(WifiStation.getIP().toString());

	// Start send data loop
	httpcTimer.initializeMs(60 * 1000, sendData).start(); // every 60 seconds

	startWebServer();

/*	startFTP(); */
}

/*
 * в случае неудачи подключения поднимаем точку доступа без авторизации
 */
void connectFail()
{
//	debugf("connection FAILED");
	WifiAccessPoint.config("MeteoConfig", "", AUTH_OPEN);
	WifiAccessPoint.enable(true);
	// Stop main screen output
	procTimer.stop();
	displayTimer.stop();

	Serial.println("WiFi MeteoConfig");
	Serial.println(WifiAccessPoint.getIP());

	startWebServer();
	WifiStation.waitConnection(connectOk); // Wait connection
}

/*
 * Отправка данных на внешний сервер
 */
void onDataSent(HttpClient& client, bool successful)
{
	if (successful)
		Serial.println("Success sent");
	else
		Serial.println("Failed");

	String response = client.getResponseString();
	Serial.println("Server response: '" + response + "'");
	if (response.length() > 0)
	{
		int intVal = response.toInt();

		if (intVal == 0)
			Serial.println("Sensor value wasn't accepted. May be we need to wait a little?");
	}
}

void sendData()
{
	// We need to wait while request processing was completed
	if (thingSpeak.isProcessing()) return;

	thingSpeak.downloadString("http://api.thingspeak.com/update?key=26WYU9LJCBC3AE1X&field1=" + StrT + "&field2=" + StrRH + "&field3=" + StrHI, onDataSent);
}

/*
 * NTP
 */
void onNtpReceive(NtpClient& client, time_t timestamp) {
	SystemClock.setTime(timestamp, eTZ_UTC);

	Serial.println("*** Time synchronized! ***");
//	Serial.println(SystemClock.getSystemTimeString());
}