/* collaboratino welder for long time-period reference with changed toggle to A0 from d7
  4,294,967,295   millisecs
  4,294,967   seconds
  71,583      minutes
  1,193     hours
  50      days
*/

#define ledPin  5
#define ledPin2 4
#define ledPin3 2
#define ledPin4 3

#define toggle  A0

int weldingTable[][2] = {{3, 5}, {2, 3}};
int weldingTable2[][2] = {{1, 2}, {1, 3}};

int i, j, count;

unsigned long offTimeDelay;
unsigned long onTimeDelay;
unsigned long offTimeDelay2;
unsigned long onTimeDelay2;

unsigned long t1;

// since it's not being initialized, both dimension must be define explicity
long delayTable[2][2];
long delayTable2[2][2];

void setup() {
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(ledPin3, OUTPUT);
  pinMode(ledPin4, OUTPUT);

  pinMode(toggle, INPUT);

  // do time-conversion once to save on repeated multiplications
  for (i = 0; i < 2; i++) {
    delayTable[i][0] = weldingTable[i][0] * 6000;
    delayTable[i][1] = weldingTable[i][1] * 6000;
    delayTable2[i][0] = weldingTable[i][0] * 6000;
    delayTable2[i][1] = weldingTable[i][1] * 6000;
  }
}

void loop() {

  if (digitalRead(toggle) == LOW) {       //begin one major cycle
    Serial.println(toggle);
    for (i = 0; i < 2; i++) {     //assign time periods
      onTimeDelay = delayTable[i][0];
      Serial.println(onTimeDelay);
      offTimeDelay = delayTable[i][1];
      Serial.println(offTimeDelay);
      t1 = millis();          //start timing the 'on' period

      while ((millis() - t1) < onTimeDelay) { //while 'on' time hasn't run out

        // but if user wants 'out', begin breaking out here
        if (digitalRead(toggle) != LOW) break;

        ////setup a random amount of flashing and do the flashing
        count = random(10, 80);
        for (j = 0; j < count; j++) {
          digitalWrite(ledPin, HIGH);   // flash one LED
          delay(random(50));
          digitalWrite(ledPin2, HIGH);    // and then the other
          delay(random(20));
          digitalWrite(ledPin, LOW);    // then turn them both off
          digitalWrite(ledPin2, LOW);
          delay(random(200));     // brief pause
        }
        delay(random(800, 2000));     //pause before resume flashing

      }
      // 'on' time has run out, so reset timer and begin the 'off' time cycle
      t1 = millis();

      while ((millis() - t1) < offTimeDelay) {
        // and complete breaking out of process here
        if (digitalRead(toggle) != LOW) break;
      }

      // 'off' time is done, so go back and do it again for the second set of time periods
    }
    // both time periods have been completed, check and see if user wants to do it all over again
  }
  //***********************************************
//welder 2
  
    for (i = 0; i < 2; i++) {     //assign time periods
      onTimeDelay2 = delayTable2[i][0];
      Serial.println(onTimeDelay2);
      offTimeDelay2 = delayTable2[i][1];
      Serial.println(offTimeDelay2);
      t1 = millis();          //start timing the 'on' period

      while ((millis() - t1) < onTimeDelay2) { //while 'on' time hasn't run out

        // but if user wants 'out', begin breaking out here
        if (digitalRead(toggle) != LOW) break;

        ////setup a random amount of flashing and do the flashing
        count = random(10, 80);
        for (j = 0; j < count; j++) {
          digitalWrite(ledPin3, HIGH);   // flash one LED
          delay(random(50));
          digitalWrite(ledPin4, HIGH);    // and then the other
          delay(random(20));
          digitalWrite(ledPin3, LOW);    // then turn them both off
          digitalWrite(ledPin4, LOW);
          delay(random(200));     // brief pause
        }
        delay(random(400, 800));     //pause before resume flashing

      }
      // 'on' time has run out, so reset timer and begin the 'off' time cycle
      t1 = millis();

      while ((millis() - t1) < offTimeDelay2) {
        // and complete breaking out of process here
        if (digitalRead(toggle) != LOW) break;
      }

      // 'off' time is done, so go back and do it again for the second set of time periods
    }
    // both time periods have been completed, check and see if user wants to do it all over again
  }