//serialInterface
// Tim Hirzel February 2008
// This is a very basic serial interface for controlling the PID loop.
// thanks to the Serial exampe code  

// All code released under
// Creative Commons Attribution-Noncommercial-Share Alike 3.0 

#include "floatToString.h"


int incomingByte = 0;
float delta = 1.0;
boolean autoupdate = false;
float b; // used to changing brightness
unsigned long lastUpdateTime = 0;
int curVarAddress = MIN_ADDRESS;
char buff[20];  // used for printing floats

void setupSerialInterface()  {
  Serial.begin(115200);
  //  Serial.println("\nWelcome to the BBCC, the Bare Bones Coffee Controller for Arduino");
  //  Serial.println("Send back one or more characters to setup the controller.");
  //  Serial.println("If this is your initial run, please enter 'R' to Reset the EEPROM.");
  //Serial.println("Enter '?' for help.  Here's to a great cup!");
  Serial.println("hi!");
}

void updateSerialInterface() {
  while(Serial.available()){
    incomingByte = Serial.read();
    switch (incomingByte) {
    case 'R':
      for (int a = MIN_ADDRESS; a <= MAX_ADDRESS; a +=4) {
        writeFloat(0.0, a); 
      }
      break;  
   
    case 'e':  //UP
      curVarAddress -=4;      
      if (curVarAddress < MIN_ADDRESS)  
        curVarAddress = MAX_ADDRESS;
      break;
    case 'd': //DOWN
      curVarAddress +=4;
      if (curVarAddress > MAX_ADDRESS)  
        curVarAddress = MIN_ADDRESS;
      break;
    case 's':  //LEFT
      delta *= 10.0;
      if (delta > MAX_DELTA)
        delta = MAX_DELTA;
      break;
    case 'f':  //RIGHT
      delta /= 10.0;
      if (delta < MIN_DELTA)
        delta = MIN_DELTA;
      break;
    case ',': //DECREASE SETTING
      writeFloat(readFloat(curVarAddress) - delta, curVarAddress);
      break;
    case '.': // INCREASE SETTING
      writeFloat(readFloat(curVarAddress) + delta, curVarAddress);
      break;

    case'u' :
      autoupdate = not autoupdate;
      break;
    case 'b':
      printPIDDebugString(); 
      Serial.println();
      break;
      /*
    case '-':
       b = lcdGetBrightness();
       b -= 10.0;
       if (b < 0.0)
       b = 0.0;
       lcdSetBrightness(b);
       break;
       case '=':
       b = lcdGetBrightness();
       b += 10.0;
       if (b > 100.0)
       b = 100.0;
       lcdSetBrightness(b);
       break;
       */
    }
  }


  if (millis() < lastUpdateTime) {
    lastUpdateTime = 0;
  }
  if ((millis() - lastUpdateTime) > AUTO_PRINT_INTERVAL) {
    // this is triggers every slightly more than a second from the delay between these two millis() calls
    lastUpdateTime += AUTO_PRINT_INTERVAL;
    if (autoupdate) {
        printStatusForGraph();
    } 
  }
}

void printOneVal(float f) {
  Serial.print(floatToString(buff, f,PRINT_PLACES_AFTER_DECIMAL, 0, false, true));  
  Serial.print(", ");  
}
void printStatusForGraph() {
  printOneVal(getLastTemp());  
  for (int a = MIN_ADDRESS; a <= MAX_ADDRESS; a +=4) {
    printOneVal(readFloat(a));  
  }
  printOneVal((float)getHeatCycles());
  printOneVal(delta);
  Serial.println(floatToString(buff, curVarAddress,0, 0, false, true));  
}

/*
void printStatus {
  // A means for getting feedback on the current system status and controllable parameters
 Serial.print(" SET TEMP:");
 Serial.print(floatToString(getTargetTemp(),PRINT_PLACES_AFTER_DECIMAL));
 Serial.print(", CUR TEMP:");
 Serial.print(floatToString(getLastMeasuredTemp(),PRINT_PLACES_AFTER_DECIMAL));
 
 Serial.print(", GAINS p:");
 Serial.print(floatToString(getP(),PRINT_PLACES_AFTER_DECIMAL));
 Serial.print(" i:");
 Serial.print(floatToString(getI(),PRINT_PLACES_AFTER_DECIMAL));
 Serial.print(" d:");
 Serial.print(floatToString(getD(),PRINT_PLACES_AFTER_DECIMAL));
 Serial.print(", Delta: ");
 Serial.print(floatToString(delta,PRINT_PLACES_AFTER_DECIMAL));
 Serial.print(", Power: ");
 Serial.print(floatToString((float)getHeatCycles(), 0));
 
 Serial.print(" \n");
 }
 */


// END Serial Interface