#define led_Red 13  //red leed
#define led_Green 11 //green led
#define led_Orange 12 //orange led
#define di_pin1 9 // dig 1 pin for seven segment
#define di_pin2 10 //dig 2 pin for seven segment


unsigned int dig[6]={di_pin1,di_pin2,led_Red,led_Green,led_Orange}; 
unsigned int seg[8]={2,3,4,5,6,7,8};// for pins a,b,c,d,e,f,g
static unsigned int count_time=0;
 unsigned int i=0;  
 unsigned char count1=0;         
 typedef enum {Red_Flag,Orange_Flag,Green_Flag}led__Flag;
 typedef enum {RED_ON,RED_OFF}Red__state; 
typedef enum {Green_ON,Green_OFF}Green__state; 
typedef enum {Orange_ON,Orange_OFF}Orange__state;
typedef enum {TIME_20,TIME_60}count__flag ;
  led__Flag led_Flag;
 Red__state Red_state;
 Green__state Green_state;
 Orange__state Orange_state;
 count__flag  count_flag;
const byte digitPatterns[10] = {
  B11000000, // 0
  B11001111, // 1
  B10100100, // 2
  B10110000, // 3
  B10011001, // 4
  B10010010, // 5
  B10000010, // 6
  B11111000, // 7
  B10000000, // 8
  B10010000,  // 9
  

  
};
/* it will display the seven segment */
void display_pin(int num ,int num2)
{
    for(int i=0;i<5;i++)
    {
      digitalWrite(dig[i],LOW);
    }
    for(int i=0;i<8;i++)
    {
      digitalWrite(seg[i],LOW);
    }
     for(int i=0;i<10;i++)
    {
      digitalWrite(seg[i],bitRead(digitPatterns[num], i));
     // Serial.println(bitRead(digitPatterns[num], i));
     //delay(1000);
    
    }
       digitalWrite(dig[num2], HIGH);

     
}

/*this main function for sven segment*/
void seven_segment(int count)
{
     // int time=count%100;
    // Serial.println(time);
      while(i<count)  
      {
            
           for(int j=0;j<10;j++)
           {
              display_pin(i,0);
              display_pin(j,1);
            
           }
           i++;
     }
     //  Serial.println(time);

if(count==2)
   {
      //Serial.println("hi i am in count==6 ");
     count_flag=TIME_20;
     Orange_state=Orange_OFF;
   }
   if(count==6)
   {
    count=0;
    //time=0;
    // Serial.println("hi");
      count_flag=TIME_60;
      Green_state=Green_OFF;
      Red_state=RED_OFF;
   }
   i=count;
  // Serial.println(count);
    //Serial.println(i);
}
/*this for red led*/
int light_Red()
{   if(Red_state==RED_ON)
      {  
            digitalWrite(led_Red,HIGH);
       //  Red_state=RED_ON;//
        
      }
    else if(Red_state==RED_OFF)
      {   
         //Serial.println("hi i am in red_off");
          led_Flag=Orange_Flag;
          Orange_state=Orange_ON;
        digitalWrite(led_Red,HIGH);
        return led_Flag;
      }
   // state_switch();
}
/*this for green led*/
int light_green()
{   if(Green_state==Green_ON)
      {   
       // Serial.print("HI");
         digitalWrite(led_Green, HIGH);
        // delay(100);
       
      }
    else if(Green_state==Green_OFF)
      { 
        led_Flag=Red_Flag;
        Red_state=RED_ON;
        digitalWrite(led_Green,LOW);
       // count_time=0;
       
      }
      return led_Flag;
      Serial.println(led_Flag);
  //  state_switch();
}
/*this for  Orange led*/
int light_Orange()
{   if(Orange_state==Orange_ON)
      {   
       //  Serial.println("hi i am in oragnge_on");
        digitalWrite(led_Orange,HIGH);
      }
    else if(Orange_state==Orange_OFF)
      {  
        led_Flag=Green_Flag;
        Green_state=Green_ON;
        digitalWrite(led_Orange,LOW);
        count_time=0;
        return led_Flag;
      }
   // state_switch();
}
/* this function is used for switch the function*/
void state_switch(led__Flag current_flag)
      { Serial.println(current_flag);
        switch(current_flag)
        { 
          case Red_Flag: 
          
             current_flag= light_Orange();
              //Serial.print(count_time);
                break;
          case Orange_Flag:
             current_flag= light_green();
               //Serial.print(led_Flag);
               //fun_init();
               //reset();
                break;
          case Green_Flag:    
            current_flag= light_Red();
                break;
          default:
             break;
          
        }
      }
 
  /*ISR IS CLLED FOR HERE */
ISR(TIMER1_COMPA_vect) {
   TCNT1=0;
   //OCR1A += 6250; 
    count_time++;
    count_time=count_time%100;
}

/*Timer is set here*/
void time_set()
{
  // TCCR0A=0;
  // TCCR0B=0;
  TCCR1B = 0;
  TCCR1A = 0;
  OCR1A = 62499;
  OCR0A=625;
  // TCCR0B |= B00000100;  // Set prescaler to 256
  // TIMSK0 |= B00000011;  // Enable Timer1 compare match state_led unsigned interrupt
  TCCR1B |= B00000100;  // Set prescaler to 256
  TIMSK1 |= B00000011;  // Enable Timer1 compare match state_led unsigned interrupt
  Serial.begin(9600);
}
/*this function is decleard here*/
void pin_dec()
{
  for(int i=0;i<6;i++)
  {
    pinMode(dig[i], OUTPUT);
  }
  for(int i=0;i<7;i++)
  {
    pinMode(seg[i], OUTPUT);
  }
}
void setup() {
    time_set();
    pin_dec();
    fun_init();
    // put your setup code here, to run once:
 
}
 /* here we will init function*/
 void fun_init(void)
{
   led_Flag=Green_Flag;
   Red_state=RED_ON;
  // count_time=0;
  // i=0;
}
  void reset(void)
{
   led_Flag=Green_Flag;
   Red_state=RED_ON;
   count_time=0;
   i=0;
}
void loop() {
       cli();
        // put your main code here, to run repeatedly:
          task1();
         // Serial.println("hi");
        sei();
  }

/* task1 we will call call function here*/
void task1()
{   
     // Serial.println(count_time);
    if(count_time<=6)
   {
   seven_segment(count_time);
   state_switch(led_Flag);
   }
   else{
    count_time=0;
    i=0;
   }
}