/*
  The goal is the dial in the best cup of coffee.
  Have fun and enjoy the process
  Maker Aaron Beaver
  @aaronbeaver
  @coffeesnobspodcast
*/
#include <SPI.h>
#include <Keypad.h>
#include <LiquidCrystal_I2C.h>

// Keypad //
const byte ROWS = 4; //four rows
const byte COLS = 3; //three columns
/*
  // REAL //
  char keys[ROWS][COLS] = {
  {'1', '2', '3'},
  {'4', '5', '6'},
  {'7', '8', '9'},
  {'*', '0', '#'}
  };
  byte rowPins[ROWS] = {2, 3, 4, 5}; //connect to the row pinouts of the keypad
  byte colPins[COLS] = {6, 7, 8}; //connect to the column pinouts of the keypad
*/

// WEB //
char keys[ROWS][COLS] = {
  {'1', '2', '3'},
  {'4', '5', '6'},
  {'7', '8', '9'},
  {'*', '0', '#'}
};
byte rowPins[ROWS] = {9, 8, 7, 6}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {5, 4, 3}; //connect to the column pinouts of the keypad
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
// Keypad //

// LCD //
LiquidCrystal_I2C lcd(0x27, 20, 4); // set the LCD address to 0x27 for a 16 chars and 2 line display
// LCD //

// variables //
int IN1 = 12;
int IN2 = 13;
int inputInt = 0;
int IntCountA = 0;
String inputString;
String inputStringA;
String inputStringB;
String inputStringC;
String inputStringD;
long GrindAmount = 15; // base amount
long WaterRatio = 17; // base amount
long BrewAmount = 255; // base amount
long inputIntD = 0;
boolean Step1 = true;
boolean Step2 = false;
boolean Step3 = false;
boolean Step4 = false;
boolean Step5 = false;
boolean Step6 = false;
float pourml1; // pour amount in  milliliters
float pourml2; // pour amount in  milliliters
float poursec1; // pour amount in  seconds
float poursec2; // pour amount in  seconds
float pourmill1; // pour amount in  milliseconds
float pourmill2; // pour amount in  milliseconds
float pour1;
float pour2;
float pour3;
float pour4;
float pour5;
float pour6;
//
int brew1 = 2000; // wait time between pump on
int brew2 = 10000; // wait time between pump on
int brew3 = 10000; // wait time between pump on
int brew4 = 10000; // wait time between pump on
int brew5 = 10000; // wait time between pump on
//
float dripratio1 = .235; // 23% on bloom pour
float dripratio2 = .19125; // 19% on next 4 pours
//
float pourrate1 = .235; // 23% on bloom pour
float pourrate2 = .176; // 17% on bloom pour
float pourrate3 = .205; // 20% on next 4 pours
//
float pumprate = 9.84; // milliliter’s per sec
int waittime = 1000; // milliseconds
int button;
int brew = 0;
char key;
// variables //


#define BACKLIGHT_PIN     3

void setup() {
  Serial.begin(9600);
  lcd.init();                      // initialize the lcd
  lcd.init();
  // Print a message to the LCD.
  lcd.backlight();
  //message//
  lcd.setCursor(8, 0);
  lcd.print("Hello");
  lcd.setCursor(5, 1);
  lcd.print("Coffee Snob!");
  lcd.scrollDisplayLeft();
  delay(200); // wait
  lcd.setCursor(2, 2);
  lcd.print("Lets make a great");
  lcd.setCursor(4, 3);
  lcd.print("Cup of Coffee");
  delay(200); // wait
  lcd.clear();
  //message//
  lcd.setCursor(0, 0);
  lcd.print("How much coffee");
  lcd.setCursor(0, 1);
  lcd.print("did you grind?");
  lcd.setCursor(0, 3);
  lcd.print("# Enter || * Reset");
  //BrewStep1();
  //bootup();
  // prime pump start//
  pinMode(IN1, OUTPUT);
  digitalWrite(IN1, HIGH);
  digitalWrite(IN1, LOW);
  delay(250);
  digitalWrite(IN1, HIGH);
  // prime pump end//
}

void loop() {

  key = keypad.getKey();

  if (key >= '0' && key <= '9')// only act on numeric keys
  {
    inputString += key; // append new character to input string
    lcd.setCursor(0, 2);
    lcd.print(inputString);
  }
  else if (key == '#') {
    if (Step5) { //IntCountA = IntCountA +1;

      // START Pour 1 //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Step 1");
      lcd.setCursor(0, 1);
      lcd.print("Pour Time:");
      lcd.print(poursec1);
      lcd.print("sec");
      lcd.setCursor(0, 2);
      lcd.print("Pour Amount:");
      lcd.print(pourml1);
      lcd.print("ML");
      digitalWrite(IN1, LOW);
      delay(pourmill1); // wait
      // Ending Pour 1 //

      // brew //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("brew");
      digitalWrite(IN1, HIGH);
      delay(brew1); // wait
      // brew //
      // START Pour 2 //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Step 2");
      lcd.setCursor(0, 1);
      lcd.print("Pour Time:");
      lcd.print(poursec2);
      lcd.print("sec");
      lcd.setCursor(0, 2);
      lcd.print("Pour Amount:");
      lcd.print(pourml2);
      lcd.print("ML");
      pour1 = (pourml1 + pourml2);
      lcd.setCursor(0, 3);
      lcd.print("Total ML:");
      lcd.print(pour1);
      lcd.print("ML");
      digitalWrite(IN1, LOW);
      delay(pourmill1); // wait
      // Ending Pour 2 //
      // brew //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("brew");
      digitalWrite(IN1, HIGH);
      delay(brew1); // wait
      // brew //

      // START Pour 3 //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Step 3");
      lcd.setCursor(0, 1);
      lcd.print("Pour Time:");
      lcd.print(poursec2);
      lcd.print("sec");
      lcd.setCursor(0, 2);
      lcd.print("Pour Amount:");
      lcd.print(pourml2);
      lcd.print("ML");
      pour2 = (pour1 + pourml2);
      lcd.setCursor(0, 3);
      lcd.print("Total ML:");
      lcd.print(pour2);
      lcd.print("ML");
      digitalWrite(IN1, LOW);
      delay(pourmill1); // wait
      // Ending Pour 3 //
      // brew //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("brew");
      digitalWrite(IN1, HIGH);
      delay(brew1); // wait
      // brew //
      // START Pour 4 //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Step 4");
      lcd.setCursor(0, 1);
      lcd.print("Pour Time:");
      lcd.print(poursec2);
      lcd.print("sec");
      lcd.setCursor(0, 2);
      lcd.print("Pour Amount:");
      lcd.print(pourml2);
      lcd.print("ML");
      pour3 = (pour2 + pourml2);
      lcd.setCursor(0, 3);
      lcd.print("Total ML:");
      lcd.print(pour3);
      lcd.print("ML");
      digitalWrite(IN1, LOW);
      delay(pourmill1); // wait
      // Ending Pour 4 //
      // brew //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("brew");
      digitalWrite(IN1, HIGH);
      delay(brew1); // wait
      // brew //
      // START Pour 5 //
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Step 5");
      lcd.setCursor(0, 1);
      lcd.print("Pour Time:");
      lcd.print(poursec2);
      lcd.print("sec");
      lcd.setCursor(0, 2);
      lcd.print("Pour Amount:");
      lcd.print(pourml2);
      lcd.print("ML");
      pour4 = (pour3 + pourml2);
      lcd.setCursor(0, 3);
      lcd.print("Total ML:");
      lcd.print(pour4);
      lcd.print("ML");
      digitalWrite(IN1, LOW);
      delay(pourmill1); // wait
      // Ending Pour 2 //
      digitalWrite(IN1, HIGH);
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Enjoy!");






      Step4 = false;
      Step5 = true;
    }
    if (Step4) { //IntCountA = IntCountA +1;
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Step 4");
      lcd.display();
      lcd.setCursor(0, 1);
      // pour var 1
      pourml1 = (dripratio1 * BrewAmount);
      poursec1 = (pourml1 / pumprate);
      pourmill1 = (poursec1 * waittime);
      // pour var 2
      pourml2 = (dripratio2 * BrewAmount);
      poursec2  = (pourml2 / pumprate);
      pourmill2 = (poursec2  * waittime);
      // pour var 1
      lcd.print("Bloom:");
      lcd.print(pourmill1);
      lcd.setCursor(0, 2);
      lcd.print("Pour 2-5:");
      lcd.print(pourmill1);
      lcd.setCursor(0, 3);
      //lcd.print();

      //lcd.print("g");
      //lcd.setCursor(0, 2);
      //lcd.print("Brewing Ratios: 1/");
      //lcd.print(WaterRatio);
      //lcd.setCursor(0, 2);
      //lcd.print("Brew Recipe: ");
      //lcd.print(BrewAmount);
      //lcd.print("ml");


      lcd.display();



      Step4 = false;
      Step5 = true;
    }

    if (Step3) { //IntCountA = IntCountA +1;
      lcd.clear();

      lcd.setCursor(0, 0);
      lcd.print("Coffee Snob Recipe");
      lcd.setCursor(0, 1);
      BrewAmount = (GrindAmount * WaterRatio);
      lcd.print("Coffee Setup: ");
      lcd.print(GrindAmount);
      lcd.print("g");
      lcd.setCursor(0, 2);
      lcd.print("Brewing Ratios: 1/");
      lcd.print(WaterRatio);
      lcd.setCursor(0, 3);
      lcd.print("Brew Recipe: ");
      lcd.print(BrewAmount);
      lcd.print("ml");
      // pour var 1
      pourml1 = (dripratio1 * BrewAmount);
      poursec1 = (pourml1 / pumprate);
      pourmill1 = (poursec1 * waittime);
      // pour var 2
      pourml2 = (dripratio2 * BrewAmount);
      poursec2  = (pourml2 / pumprate);
      pourmill2 = (poursec2  * waittime);
      // pour var 1


      Step3 = false;
      Step4 = false;
      Step5 = true;
    }
    if (inputString.length() > 0) {
      if (Step2) {

        WaterRatio = inputString.toInt(); // YOU GOT AN INTEGER NUMBER
        inputString = "";// clear input
        Serial.println(WaterRatio);
        lcd.setCursor(0, 2);
        lcd.print("1/");
        lcd.print(WaterRatio);
        lcd.print("oz");


        delay(1000); // wait
        BrewAmount = (GrindAmount * WaterRatio);
        lcd.clear();

        lcd.setCursor(0, 0);
        lcd.print("Brew Recipe: ");
        lcd.setCursor(0, 1);
        lcd.print(GrindAmount);
        lcd.print("g | 1/");
        lcd.print(WaterRatio);
        lcd.print(" | ");
        lcd.print(BrewAmount);
        lcd.print("ml");
        lcd.setCursor(0, 3);
        lcd.print("# BREW || * Reset");
        // pour var 1
        pourml1 = (dripratio1 * BrewAmount);
        poursec1  = (pourml1 / pumprate);
        pourmill1 = (poursec1  * waittime);
        Serial.println(pourmill1);
        // pour var 2
        pourml2 = (dripratio2 * BrewAmount);
        poursec2  = (pourml2 / pumprate);
        pourmill2 = (poursec2  * waittime);
        Serial.println(pourmill2);
        // pour var 1
        Step2 = false;
        Step3 = false;
        Step4 = false;
        Step5 = true;
        Serial.println(Step2);
        Serial.println(Step3);


      }
      if (Step1) {
        BrewStep1();
      }

    }
  }

  if (key == '*') {
    Serial.println("Clear");
    lcd.clear();


    Step1 = true;
    Step2 = false;
    Step3 = false;
    Step4 = false;
    Step5 = false;
    GrindAmount = 0;
    WaterRatio = 0;
    BrewAmount = 0;
    bootup();
  }
}


void bootup() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("How much coffee");
  lcd.setCursor(0, 1);
  lcd.print("did you grind?");
  lcd.setCursor(0, 3);
  lcd.print("# Enter | * Reset");
  Step1 = true;
  Step2 = false;
  Step3 = false;
  Step4 = false;
  Step5 = false;
  GrindAmount = 0;
  WaterRatio = 0;
  BrewAmount = 0;
  Serial.print("bootup");
}



void BrewStep1(){
  GrindAmount = inputString.toInt(); // YOU GOT AN INTEGER NUMBER
        inputString = "";// clear input
        Serial.println(GrindAmount);
        lcd.setCursor(0, 2);
        lcd.print(GrindAmount);
        lcd.print("grams");
        Step1 = false;
        Step2 = true;
        delay(1000); // wait
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("What is your");
        lcd.setCursor(0, 1);
        lcd.print("brew ratio?");
        lcd.setCursor(0, 3);
        lcd.print("# Enter || * Reset");
        Serial.println(Step1);
        Serial.println(Step2);
}