#include <Wire.h>
#include "RTClib.h"
#include "mydata.h"

RTC_DS3231 _rtc;



// Control Variables
#define CLPERSEC 5
#define BASEYEAR 2022
#define TESTING 1

// Variables
MyData *_myData;

void setup () 
{
  // Start the communications
  Wire.begin();
  Serial.begin(9600);
  delay(3000); // wait for console opening

  // Check the status of the RTC
  if (! _rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  if (_rtc.lostPower()) {
    Serial.println("RTC lost power, lets set the time!");
  
  // Comment out below lines once you set the date & time.
    // Following line sets the RTC to the date & time this sketch was compiled
    //rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  
    // Following line sets the RTC with an explicit date & time
    // for example to set January 27 2017 at 12:56 you would call:
    // rtc.adjust(DateTime(2017, 1, 27, 12, 56, 0));
  }
  // Create the structure
  _myData = new MyData();
  // Set the initial data [TESTING ONLY]
  if (TESTING) setInitialData();
  // Print the structure
  _myData->printData();

  return;
}

void loop () 
{
  // Refresh the current data
  _myData->refreshData();
  // Get the hours from base
  DateTime now = _rtc.now();
  uint16_t hrsFromBase = calcHoursSinceBase(now);
  // Check to see if any action needed (presumably so)
  int hrsLastDone = hrsFromBase - _myData->getLastTime();
  if (hrsLastDone > 0) {  // Now we need to process
    _myData->processWater(hrsLastDone);
    // Update the last time since we did this
    writeLastTime(hrsFromBase);
  }
  // IF testing, we will forward the clock by a few minutes
  if (TESTING) {
    now = _rtc.now();
    DateTime newTime (now+TimeSpan(0,0,60-now.minute()-1,0));
    _rtc.adjust(newTime);
    Serial.print("Adjusted Mins to "); Serial.println(newTime.minute());
  }
  // Calculate the amount of time we should be sleeping for
  delay(calculateNextCheckTime());
}

void writeLastTime(uint16_t hrs) {
  writeByte(RTCADDR, LASTTIME, (uint8_t)(hrs >> 8));
  writeByte(RTCADDR, LASTTIME+1, (uint8_t)(hrs & 0xFF));
}

void setInitialData() {
  // Set the values
  _myData->setControl(CONTROLON);
  _myData->setLastTime(6440);
  _myData->setValveInfo(0, 5, 1, 5);
  _myData->setValveInfo(1, 4, 2, 10);
  _myData->setValveInfo(2, 3, 3, 15);
  _myData->setValveInfo(3, 2, 4, 20);
  _myData->setValveInfo(4, 0, 0, 0);
  _myData->setValveInfo(5, 0, 0, 0);
  _myData->setValveInfo(6, 1, 5, 25);
  _myData->setValveInfo(7, 0, 0, 0);

  // Now write the data to the eeprom
  byte data[BUFSIZE];
  Serial.println("Printing the set data");
  _myData->printData();
  _myData->getStream(data);
  writePage(RTCADDR, STARTADDR, data, BUFSIZE);
  
  delay(500);
}

void printDataStream(byte* data) {
  for(int i = 0; i < BUFSIZE; i++) {
    Serial.print(*(data+i));
    Serial.print(" ");
  }
  Serial.println();
}

uint16_t calcHoursSinceBase(DateTime now) {
  // Get the date time of the base
  DateTime then(BASEYEAR, 01, 01, 00, 00, 00);
  TimeSpan span = now-then;
  //Serial.print(span.days()); Serial.print(" "); Serial.println(span.hours());
  return (span.days() * 24) + span.hours();
}

int calculateNextCheckTime() {
  DateTime now = _rtc.now();
  int mins = 60 - now.minute();
  Serial.print("Checking in minutes "); Serial.println(mins);
  return ((mins*60) + 30) * 1000;
}