//Locking, Automatic Chicken Coop Door
//By Mike Roberts 2017  (based off of original code by Seth Johnson  Land To House llc 2016)
#include <Arduino.h>
//#include <ElegantOTA.h>
//#include <WiFi.h>
//#include <WiFiClient.h>
//#include <WebServer.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
#include <DallasTemperature.h>
#define CoolRelay 32
#define HeatRelay 33
#define ONE_WIRE_BUS 4
const boolean SerialDisplay = true;  // print debug messages or not to serial
//This section is for initializing things:
//const int led = 13;
int tcrt;
const int PWM = 26;   //enables PWM on the drv8801 motor controller.
const int DIR = 27;   //send high or low to DIR on the motor controller.
const int red = 14;   // red LED heating
const int blue = 12;  // blue LED cooling
const int coopDoorOpenLed = 13;
const int coopDoorClosedLed = 23;
const int lightSensorPin = 25;  //Initialize "lightSensor" This is the photoresistor.
const int BotSwtch = 18;
const int TopSwtch = 19;
int lightVal = 0;
int BotSwtchState = 0;
int TopSwtchState = 0;  //These are the variables that hold the state of the reed switches
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

//Set WiFi Credentials
//const char *ssid = "Wi-Fi Fo Fum";
//const char *password = "****";
//WebServer server(80);
void setup()  //This only runs once.
{
  Serial.begin(115200);  // initialize the serial communications:
  //connect to WiFi
  /* WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP()); 
*/
  //Begin OTA
// ElegantOTA.begin(&server);  // Start ElegantOTA
//  server.begin();
//  Serial.println("HTTP server started");
  lcd.init();  // set up the LCD's number of columns and rows:
  lcd.backlight();
  sensors.begin();
  pinMode(red, OUTPUT);
  pinMode(blue, OUTPUT);
  pinMode(CoolRelay, OUTPUT);
  pinMode(HeatRelay, OUTPUT);
  pinMode(PWM, OUTPUT);
  pinMode(DIR, OUTPUT);  // set the motor control pins as outputs. This means pins 9, 10 are outputs to the drv8801 motor controller.
  pinMode(coopDoorOpenLed, OUTPUT);
  pinMode(coopDoorClosedLed, OUTPUT);
  pinMode(BotSwtch, INPUT_PULLUP);
  pinMode(TopSwtch, INPUT_PULLUP);

  BotSwtchState = digitalRead(BotSwtch);
  TopSwtchState = digitalRead(TopSwtch);
  //  TestBtnState = digitalRead(TestBtn);
 /*
  if (BotSwtchState != HIGH)  //if BotSwtchState is not high then go to the while statement
  {
    while (BotSwtchState != HIGH)  // this function will run the motor down as long as switch 1 has not been triggered
    {
      analogWrite(PWM, 200);                  // turn on motor and set speed to 255
      digitalWrite(DIR, LOW);                 // DIR LOW=down HIGH=up
      BotSwtchState = digitalRead(BotSwtch);  //read the state of the switch again to make sure that it has not been triggered
      TopSwtchState = digitalRead(TopSwtch);  //read the state of switch 2 (the top one) and place it in TopSwtchState
    }
    delay(1000);
    analogWrite(PWM, 0);                    // once TopSwtchState has been triggered turn off the motor
    digitalWrite(coopDoorClosedLed, HIGH);  // turns on coopDoorClosedLed (green)
    digitalWrite(coopDoorOpenLed, LOW);
  } */
}
void motordown()  //code for sending door down
{
  BotSwtchState = digitalRead(BotSwtch);
  while (BotSwtchState != HIGH) {
    analogWrite(PWM, 200);
    digitalWrite(DIR, LOW);
    BotSwtchState = digitalRead(BotSwtch);
  }
  delay(1000);                            //wait 2 seconds before turning off the motor to let the locks engage at the bottom
  analogWrite(PWM, 0);                    // now turn off motor
  digitalWrite(coopDoorClosedLed, HIGH);  // turns on coopDoorClosedLed (green)
  digitalWrite(coopDoorOpenLed, LOW);     // turns off coopDoorOpenLed (red)
}

void motorup()  // this function will run the motor as long as switch 2 has not been triggered
{
  BotSwtchState = digitalRead(BotSwtch);
  TopSwtchState = digitalRead(TopSwtch);
  while (TopSwtchState != HIGH) {
    analogWrite(PWM, 200);
    digitalWrite(DIR, HIGH);
    TopSwtchState = digitalRead(TopSwtch);
  }
  analogWrite(PWM, 0);
  digitalWrite(coopDoorClosedLed, LOW);  // turns on coopDoorClosedLed (green)
  digitalWrite(coopDoorOpenLed, HIGH);   // turns off coopDoorOpenLed (red)
}

//this runs over and over
void loop() {
  // Handle OTA
//  server.handleClient();
//  ElegantOTA.loop();
  //Code for OTA

  sensors.requestTemperatures();
  float temperature = sensors.getTempFByIndex(0);
  lightVal = analogRead(lightSensorPin);  //read the light sensor and place it in lightval
  lcd.home();
  char buffer[50];
  sprintf(buffer, "LSV: %4d", (analogRead(lightSensorPin)));  // was A0 which is now 19 try 19 if lightSensorPin doesnt work
  lcd.setCursor(0, 0);
  lcd.print(buffer);
  lcd.setCursor(10, 0);
  lcd.print("T:");  //  sprintf(buffer, "Temp: %f\337F", temperature);
  lcd.print(sensors.getTempFByIndex(0));
  lcd.print("\337F");  //  lcd.print (buffer);
  Serial.print(" Light sensor value: ");
  Serial.println(analogRead(lightSensorPin));
  Serial.print("      ");
  Serial.print(sensors.getTempFByIndex(0));
  Serial.println("\337F");
  if (temperature < 40)  //changed temp to 40
  {
    digitalWrite(red, HIGH);
    digitalWrite(blue, LOW);
    Serial.println("      Heating");
    digitalWrite(CoolRelay, 0);
    digitalWrite(HeatRelay, 1);
    delay(30000);
  } else if (temperature > 40 && temperature < 85)  //changed temp to 40
  {
    digitalWrite(red, LOW);
    digitalWrite(blue, LOW);
    Serial.println("      All Off");
    digitalWrite(CoolRelay, 0);
    digitalWrite(HeatRelay, 0);
  } else if (temperature > 85) {
    digitalWrite(CoolRelay, 1);
    digitalWrite(HeatRelay, 0);
    digitalWrite(red, LOW);
    digitalWrite(blue, HIGH);
    Serial.println("      Cooling ");
  }
  BotSwtchState = digitalRead(BotSwtch);
  Serial.print(" Bottom Switch Value: ");  // display "Bottom Switch Value:"
  Serial.println(digitalRead(BotSwtch));
  sprintf(buffer, "Bot Sw: %d", BotSwtchState);
  lcd.setCursor(0, 1);
  lcd.print(buffer);
  TopSwtchState = digitalRead(TopSwtch);
  Serial.print(" Top Switch Value: ");  // display "Bottom Switch Value:"
  Serial.println(digitalRead(TopSwtch));
  sprintf(buffer, "Top Sw: %d", TopSwtchState);
  lcd.setCursor(0, 2);
  lcd.print(buffer);

  if (TopSwtchState == HIGH && lightVal < 45) {
    delay(30000);
    motordown();
  } else if (BotSwtchState == HIGH && lightVal > 600) {
    delay(30000);
    motorup();
  }
}