#include <IRremote.h>
#include <LiquidCrystal_I2C.h>
#include "max7219func.h"
#include <SPI.h>
#include <TimeLib.h>


#define PIN_RECEIVER 12   // Signal Pin of IR receiver
#define MAX_MESG   20

IRrecv receiver(PIN_RECEIVER);
LiquidCrystal_I2C lcd(0x27, 16, 2);

utf8_t szMesg[MAX_MESG + 1];
void getTime(utf8_t *psz)
{  
  char dummyfont;
  if(numFont == Font3x8) dummyfont = 1;
  else if(numFont == Font4x8) dummyfont = 2;
  else if(numFont == Font5x8) dummyfont = 3;
  
  sprintf((char*)psz, "%02d%s%02d%c\x9a%02d\x9a", hours, seconds % 2 ? (numFont == Font5x8 ? "\x9c" : " ") : (numFont == Font5x8 ? "\x9b" : ":"), minutes, numFont == Font5x8 ? '\0' : ' ', seconds);
  if(hours<10) *psz = dummyfont;
   //if(numFont == Font5x8 ) psz[1 < 10 ? 4 : 5] = '\x0';
}

void checkIR() {
  if (receiver.decode()) {
    translateIR();
    receiver.resume();  // Receive the next value
  }
}

void utfStrConv(utf8_t *str)
{
  uint8_t stlLen = strlen(str);
  bool utfFound;
  while(*str != '\0'){
    switch (*str) {
      case 0xC3: *str = *(str + 1) + 64; utfFound = true; break;
      case 0xC5:
       utfFound = true; 
       switch (*(str + 1)) {
         case 0x90: case 0x91: *str = *(str + 1) + 5; break;  // Ő ő
         case 0xB0: case 0xB1: *str = *(str + 1) - 25;  // Ű ű
       }
      default: utfFound = false; 
    }
    str++;
    if(utfFound)
      for(utf8_t *tmp = str; *tmp != '\0'; tmp++) 
        *tmp = *(tmp + 1);   
  }
}

utf8_t helyseg[] = "Várpalota:";
utf8_t temp[] = "-21.6\x90\x43";
utf8_t hum[] = "Pára:";
utf8_t humDigs[] = "25%";
uint8_t intensity = 2;

void setup()
{
  Wire.begin();
  mx.begin();
  lcd.init();
  lcd.print("<press a button>");
  Serial.begin(115200);
  receiver.enableIRIn();  // Start the receiver
  while (!Serial)  // Wait for the serial connection to be establised.
    delay(50);
  Serial.println();
  Serial.print(F("IRrecvDemo is now running and waiting for IR message on Pin "));
  Serial.println(PIN_RECEIVER);
  numFont = numFonts[numFontIndex];
  utfStrConv(helyseg);
  utfStrConv(hum);
  mx.control(MD_MAX72XX::INTENSITY, intensity);
  //printText("aaaaaai");delay(10000);
}


char animStr[] = {'P','L','U'};
enum states { Idle, InitCycle, TimeStart, ShowTime, ShowTempLoc, ShowTempDigits, ShowHumidityText, ShowHumidityDigits } curState, nextState;
enum animTypes { Pr, LR, UD } animType;
bool lock = false;
bool jmpNext = false;
uint32_t idleTime;
void loop() {
  static enum states state = InitCycle;
  static uint32_t showTimeFor = 2000, showValuesFor = 1000;
  static uint8_t lastSec;
  static byte anims[5];
  byte tempPos;
  
  //----------------------------------------------------------------

  switch (state) {
    case Idle:
      yield();                                       // ESP?      
      if (elapsed(idleTime)){
        if(curState == ShowTime) animEnd = true;
        if(animEnd){
          animEnd = false;
          updown = lr = random(2);
          if(lock && (curState == ShowTime || curState == ShowTempDigits || curState == ShowHumidityDigits)){ Serial.print(curState);
            anims[curState - 3] = Pr;
            curState = curState - 1;  
          }
          if(curState == ShowHumidityDigits) state = curState = InitCycle;
          else state = curState = curState + 1;
        }
        else state = curState;
        idleTime = 15;
      }
      else {
        if (receiver.decode()) {
          translateIR();
          receiver.resume();  // Receive the next value
          if(jmpNext){
            startTime[0] += idleTime;
            animEnd = true;
            jmpNext = false;
          }
        }
      }
      if(curState == ShowTime) state = ShowTime;
      break;
    case InitCycle:
      for(int i = 0; i < 5; i++){ anims[i] = random(3); Serial.print(animStr[anims[i]]); }
       Serial.println();
      //anims[0] = UD;
      //anims[1] = Pr;
      //anims[2] = UD;
      //anims[3] = Pr;
      //anims[4] = UD;
      //for(int i = 0; i < 5; i++)Serial.print(animStr[anims[i]]);
      DS1307getTime();
      setTime(hours, minutes, seconds, mday, monthL, yearL);
      getTime(szMesg);//Serial.println((char *)szMesg);
      //lr = LEFT;
      curState = TimeStart;
    case TimeStart:
      switch (anims[0]) {
        case Pr: printText(szMesg); break;
        case LR: TSLR(szMesg); break;
        case UD: TSUD(szMesg);
      }
      state = Idle; idleTime = 15;
      break;
    case ShowTime: //Serial.println("showtime");delay(2000);
        hours = hour(), minutes = minute(), seconds = second();
        if (lastSec != seconds) {
          lastSec = seconds;
          getTime(szMesg);
          if (numFont == Font5x8) {
            printText(szMesg);
            seconds <= 30 ? mx.setPoint(7, seconds == 0 ? 30 : 31 - seconds, true) : mx.setPoint(7, seconds == 31 ? 1 : seconds - 30, true);
            if (seconds > 55)mx.setColumn(30, 4 << seconds % 5);
            if (seconds > 25 && seconds < 31) mx.setColumn(1, 4 << (seconds < 30 ? seconds % 5 : 5));
          } else
           printText(szMesg);
        }          
        state = Idle;
        idleTime = showTimeFor;
      break;
    case ShowTempLoc:
      switch (anims[1]) {
        case Pr: printText(helyseg); break;
        case LR: lr = true; TSLR(helyseg); break;
        case UD: TSUD(helyseg);
      } 
      state = Idle;
      if(animEnd) idleTime = showValuesFor;
      break;
    case ShowTempDigits:
      switch (anims[2]) { 
        case Pr: printText(temp); break;
        case LR: TSLR(temp); break;
        case UD: TSUD(temp);
      }  
      state = Idle;
      if(animEnd) idleTime = showValuesFor;
      break;
    case ShowHumidityText:  
      switch (anims[3]) {
        case Pr: printText(hum); break;
        case LR: TSLR(hum); break;
        case UD: TSUD(hum);
      }
      state = Idle;
      if(animEnd) idleTime = showValuesFor;
      break;
    case ShowHumidityDigits:
      switch (anims[4]) {
        case Pr: printText(humDigs); break;
        case LR: TSLR(humDigs); break;
        case UD: TSUD(humDigs);
      }
      state = Idle;
      if(animEnd) idleTime = showValuesFor;
      break;
  }
}

void lcdPrint(const char* text)
{
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("button pressed:");
  lcd.setCursor(0, 1);
  lcd.print(text);
  lcd.print(" code: ");
  lcd.print(receiver.decodedIRData.command);
}

void translateIR()
{
  // Takes command based on IR code received
  switch (receiver.decodedIRData.command) {
    case 162:
      char time[2];
      //lcdPrint("POWER");
      DS1307getTime();
      lcdPrint(itoa(seconds, time, 10));
      break;
    case 226:
      lcdPrint("MENU");
      lock = !lock;
      break;
    case 34:
      lcdPrint("TEST");
      jmpNext = true;
      animState = 0;
      mx.clear();           
      break;
    case 2:
      lcdPrint("PLUS");
      break;
    case 194:
      lcdPrint("BACK");
      break;
    case 224:
      lcdPrint("PREV.");
      break;
    case 168:
      lcdPrint("PLAY");
      break;
    case 144:
      lcdPrint("NEXT");
      break;
    case 104:
      lcdPrint("num: 0");
      break;
    case 152:
      lcdPrint("MINUS");
      break;
    case 176:
      lcdPrint("key: C");
      startTime[0] += idleTime;
      animState = 0;       
      animEnd = true;
      numFontIndex = (numFontIndex + 1) % 3;
      numFont = numFonts[numFontIndex];
      curState = TimeStart;
      break;
    case 48:
      lcdPrint("num: 1");
      break;
    case 24:
      lcdPrint("num: 2");
      break;
    case 122:
      lcdPrint("num: 3");
      break;
    case 16:
      lcdPrint("num: 4");
      break;
    case 56:
      lcdPrint("num: 5");
      break;
    case 90:
      lcdPrint("num: 6");
      break;
    case 66:
      lcdPrint("num: 7");
      break;
    case 74:
      lcdPrint("num: 8");
      break;
    case 82:
      lcdPrint("num: 9");
      break;
    default:
      lcd.clear();
      lcd.print(receiver.decodedIRData.command);
      lcd.print(" other button");
  }
}