#include <Arduino.h>
/////////////////////////////////
// LCD Libraries
#include <Wire.h>
#include <hd44780.h>                        // main hd44780 header
#include <hd44780ioClass/hd44780_I2Cexp.h>  // i2c expander i/o class header
////////////////////////////////
// LCD Object Configuration
hd44780_I2Cexp lcd;  // declare lcd object: auto locate & auto config expander chip
const int LCD_COLS = 16;
const int LCD_ROWS = 2;

void LcdStatusCheck( int LCD_COLS, int LCD_ROWS) {
  int status;
  //LCD Start
  status = lcd.begin(LCD_COLS, LCD_ROWS);
  // Check if LCD is working
  if (status)  // non zero status means it was unsuccesful
  {
    hd44780::fatalError(status);  // does not return
  }
  // Print a message to the LCD
  lcd.setCursor(0, 0);  //Set cursor to character 2 on line 0
  lcd.print("Initiated");
  delay(2000);
}

////////////////////////////////
// WiFi Library
#include <WiFi.h>
#include <HTTPClient.h>

// WiFi Credentials
//* Set these to your desired credentials. */
const char *ssid = "Wokwi-Guest";  //ENTER YOUR WIFI SETTINGS
const char *password = "";
WiFiClient client;
// SetUp Function: WifiSetup()
///////////////////////////////

void WifiSetup() {
  WiFi.mode(WIFI_OFF);        //Prevents reconnection issue (taking too long to connect)
  delay(50);
  WiFi.mode(WIFI_STA);        //This line hides the viewing of ESP as wifi hotspot

  WiFi.begin(ssid, password);     //Connect to your WiFi router
  Serial.println("");

  Serial.print("Connecting");
  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    Serial.print(".");
  }

  //If connection successful show IP address in serial monitor
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());  //IP address assigned to your ESP

}

int red_pin=18;
int green_pin=5;


void PinModeSetup() {

   pinMode(red_pin, OUTPUT);
  pinMode(green_pin, OUTPUT);


}

#include "HX711.h"

HX711 scale;

void HX711_setup(){
Serial.println("HX710B Demo with HX711 Library");
  Serial.println("Initializing the scale");

  // parameter "gain" is ommited; the default value 128 is used by the library
  // HX711.DOUT   - pin #A1
  // HX711.PD_SCK - pin #A0

  scale.begin(A1, A0);

  Serial.println("Before setting up the scale:");
  Serial.print("read: \t\t");
  Serial.println(scale.read());                  // print a raw reading from the ADC
  Serial.print("read average: \t\t");
  Serial.println(scale.read_average(20));        // print the average of 20 readings from the ADC
  Serial.print("get value: \t\t");
  Serial.println(scale.get_value(5));            // print the average of 5 readings from the ADC minus the tare weight (not set yet)
  Serial.print("get units: \t\t");
  Serial.println(scale.get_units(5), 1);         // print the average of 5 readings from the ADC minus tare weight (not set) divided

  // by the SCALE parameter (not set yet)
  scale.set_scale(2280.f);                       // this value is obtained by calibrating the scale with known weights; see the README for details
  scale.tare();                                  // reset the scale to 0

  Serial.println("After setting up the scale:");
  Serial.print("read: \t\t");
  Serial.println(scale.read());                  // print a raw reading from the ADC
  Serial.print("read average: \t\t");
  Serial.println(scale.read_average(20));        // print the average of 20 readings from the ADC
  Serial.print("get value: \t\t");
  Serial.println(scale.get_value(5));            // print the average of 5 readings from the ADC minus the tare weight, set with tare()
  Serial.print("get units: \t\t");
  Serial.println(scale.get_units(5), 1);         // print the average of 5 readings from the ADC minus tare weight, divided

  // by the SCALE parameter set with set_scale
  Serial.println("Readings:");
}


void setup() {

  // put your setup code here, to run once:
  Serial.begin(115200);  //start Serial in case we need to ln debugging info
  LcdStatusCheck(LCD_COLS, LCD_ROWS); // Start LCD
  PinModeSetup();
  //WifiSetup();
    HX711_setup();


  lcd.clear();
  lcd.print("Inventory System");

}

float current,temperature,cycle_time;
void loop() {

  // put your main code here, to run repeatedly:
int current_sensor_pin = 34;
pinMode(current_sensor_pin, INPUT);
current = AnalogSensorRead(current_sensor_pin,0,100);

lcd.clear();
lcd.setCursor(0,0);
lcd.print("Current :");
lcd.setCursor(0,1);
lcd.print(current);
delay(1000);


  // put your main code here, to run repeatedly:
int cycle_time_sensor_pin = 32;
pinMode(cycle_time_sensor_pin, INPUT);
cycle_time = AnalogSensorRead(cycle_time_sensor_pin,0,100);

lcd.clear();
lcd.setCursor(0,0);
lcd.print("Cycle Time :");
lcd.setCursor(0,1);
lcd.print(cycle_time);
delay(1000);

// lcd.setCursor(0,1);
// lcd.print("current :");
// current = AnalogSensorRead(current_sensor_pin,0,100);
// lcd.print(current);
// delay(1000);
// SendRecords();

// if (temperature>70) {
//     digitalWrite(red_pin, HIGH);
//   digitalWrite(green_pin,LOW);
// lcd.clear();
// lcd.setCursor(0,0);
// lcd.print("Warning: Temp HIGH");
// lcd.setCursor(0,1);
// lcd.print("Aerator On");
// delay(1000);
// }

// if (temperature>40 && temperature<70 && current>40 && current<65){
//   digitalWrite(red_pin, LOW);
//   digitalWrite(green_pin,HIGH);
// lcd.clear();
// lcd.setCursor(0,0);
// lcd.print("Great System");
// delay(1000);
// }

// if (temperature<40){
//     digitalWrite(red_pin, HIGH);
//   digitalWrite(green_pin,LOW);
// lcd.clear();
// lcd.setCursor(0,0);
// lcd.print("Warning: Temp LOW");
// lcd.setCursor(0,1);
// lcd.print(" Alerting User");
// delay(1000);
// }

// if (current <40){
//   digitalWrite(red_pin, HIGH);
//   digitalWrite(green_pin,LOW);
// lcd.clear();
// lcd.setCursor(0,0);
// lcd.print("Warning: Pres. LOW");
// lcd.setCursor(0,1);
// lcd.print(" Sprinkler ON");
// delay(1000);
// }

// if (current>65){
//   digitalWrite(red_pin, HIGH);
//   digitalWrite(green_pin,LOW);
// lcd.clear();
// lcd.setCursor(0,0);
// lcd.print("Warning: Pres. LOW");
// lcd.setCursor(0,1);
// lcd.print(" Sprinkler OFF");
// delay(1000);
// }


  //  sendTelegram();
}
//
float weight;
void weight_read(){
  Serial.print("one reading:\t");
  Serial.print(scale.get_units(), 1);
  Serial.print("\t| average:\t");
  Serial.println(scale.get_units(10), 1);
  weight = scale.get_units(10);
  scale.power_down();                            // put the ADC in sleep mode
  delay(5000);
  scale.power_up();
}



float AnalogSensorRead(int pin, int minX, int maxX) {
  
  // Read Raw Value
  float level = analogRead(pin);
  Serial.print("Raw level: ");
  Serial.println(level);
  // Map Raw Value to Required Units
  level = map(level, 0, 4095, minX, maxX);
  Serial.print("Map level: ");
  Serial.println(level);
  return level;
}

void SendRecords() {
  Serial.print("connecting to ");


  HTTPClient http;

  Serial.print("[HTTP] begin...\n");
  // configure traged server and url
  http.begin("https://compost.carel.co.zw/api/records");
  //http.begin("http://192.168.1.12/test.html"); //HTTP

  Serial.print("[HTTP] POST...\n");
  String postData;
  //Post Data
   postData = "sensor_1=" + String(temperature)+ "&sensor_2=" + String(current);

  http.addHeader("Content-Type", "application/x-www-form-urlencoded");    //Specify content-type header

  // start connection and send HTTP header
  auto httpCode = http.POST(postData);   //Send the request
  // httpCode will be negative on error
  if (httpCode > 0) {
    // HTTP header has been send and Server response header has been handled
    Serial.printf("[HTTP] POST... code: %d\n", httpCode);

    // file found at server
    // file found at server
    if (httpCode == HTTP_CODE_OK) {
      String payload = http.getString();
      Serial.println(payload);
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Server Response");
      lcd.setCursor(0, 1);
      lcd.print("OK: ");
      lcd.print(httpCode);
      delay(1000);
    }
  } else {
    Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Server Response");
    lcd.setCursor(0, 1);
    lcd.print("BAD: ");
    lcd.print(httpCode);
    delay(1000);
  }

  http.end();
  delay(250);
}

void SendActuator() {
  Serial.print("connecting to ");


  HTTPClient http;

  Serial.print("[HTTP] begin...\n");
  // configure traged server and url
  http.begin("https://compost.carel.co.zw/api/records");
  //http.begin("http://192.168.1.12/test.html"); //HTTP

  Serial.print("[HTTP] POST...\n");
  String postData;
  //Post Data
   postData = "temperature=" + String(temperature)+ "&current=" + String(current);

  http.addHeader("Content-Type", "application/x-www-form-urlencoded");    //Specify content-type header

  // start connection and send HTTP header
  auto httpCode = http.POST(postData);   //Send the request
  // httpCode will be negative on error
  if (httpCode > 0) {
    // HTTP header has been send and Server response header has been handled
    Serial.printf("[HTTP] POST... code: %d\n", httpCode);

    // file found at server
    // file found at server
    if (httpCode == HTTP_CODE_OK) {
      String payload = http.getString();
      Serial.println(payload);
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Server Response");
      lcd.setCursor(0, 1);
      lcd.print("OK: ");
      lcd.print(httpCode);
      delay(1000);
    }
  } else {
    Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Server Response");
    lcd.setCursor(0, 1);
    lcd.print("BAD: ");
    lcd.print(httpCode);
    delay(1000);
  }

  http.end();
  delay(250);
}