#include <WiFi.h>
#include <ThingSpeak.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

const char* ssid = "RAJPOOT";
const char* password = "00000000";

const char* myWriteAPIKey = "OR6ODXD0MBMTP77F";
const unsigned long myChannelNumber = 1;

WiFiClient client;

unsigned long lastTime = 0;
const unsigned long timerDelay = 20000;

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int ledGreen = 2;
const int ledRed = 4;

#define S1 25
#define S2 26
#define S3 27
#define S4 32
#define S5 33

int vote1 = 0;
int vote2 = 0;
int vote3 = 0;
int vote4 = 0;

void setup() {
  Serial.begin(9600);

    pinMode(25, INPUT_PULLUP);
      pinMode(26, INPUT_PULLUP);
        pinMode(27, INPUT_PULLUP);
          pinMode(32, INPUT_PULLUP);
            pinMode(33, INPUT_PULLUP);
              pinMode(2, OUTPUT);
                pinMode(4, OUTPUT);

                  lcd.init();
                    lcd.clear();
                      lcd.backlight();
                        lcd.print(" Electronic ");
                          lcd.setCursor(0, 1);
                            lcd.print(" Voting Machine ");
                              delay(4000);
                                lcd.clear();

                                  connectWiFi();
                                  }

                                  void loop() {
                                    digitalWrite(ledGreen, LOW);
                                      digitalWrite(ledRed, LOW);
                                        
                                          lcd.setCursor(1, 0);
                                            lcd.print("BJP");
                                              lcd.setCursor(1, 1);
                                                lcd.print(vote1);
                                                  lcd.setCursor(5, 0);
                                                    lcd.print("INC");
                                                      lcd.setCursor(5, 1);
                                                        lcd.print(vote2);
                                                          lcd.setCursor(9, 0);
                                                            lcd.print("AAP");
                                                              lcd.setCursor(9, 1);
                                                                lcd.print(vote3);
                                                                  lcd.setCursor(13, 0);
                                                                    lcd.print("OTH");
                                                                      lcd.setCursor(13, 1);
                                                                        lcd.print(vote4);

                                                                          if (digitalRead(25) == LOW) {
                                                                              vote1++;
                                                                                  digitalWrite(ledGreen, HIGH);
                                                                                      while (digitalRead(25) == LOW);
                                                                                        }
                                                                                          if (digitalRead(26) == LOW) {
                                                                                              vote2++;
                                                                                                  digitalWrite(ledGreen, HIGH);
                                                                                                      while (digitalRead(26) == LOW);
                                                                                                        }
                                                                                                          if (digitalRead(27) == LOW) {
                                                                                                              vote3++;
                                                                                                                  digitalWrite(ledGreen, HIGH);
                                                                                                                      while (digitalRead(27) == LOW);
                                                                                                                        }
                                                                                                                          if (digitalRead(32) == LOW) {
                                                                                                                              vote4++;
                                                                                                                                  digitalWrite(ledGreen, HIGH);
                                                                                                                                      while (digitalRead(32) == LOW);
                                                                                                                                        }

                                                                                                                                          if (digitalRead(33) == LOW) {
                                                                                                                                              int totalVotes = vote1 + vote2 + vote3 + vote4;
                                                                                                                                                  if (totalVotes) {
                                                                                                                                                        digitalWrite(ledRed, HIGH);
                                                                                                                                                              digitalWrite(ledGreen, LOW);
                                                                                                                                                                    if (vote1 > vote2 && vote1 > vote3 && vote1 > vote4) {
                                                                                                                                                                            lcd.clear();
                                                                                                                                                                                    lcd.print("BJP is Winner");
                                                                                                                                                                                            delay(3000);
                                                                                                                                                                                                    lcd.clear();
                                                                                                                                                                                                          } else if (vote2 > vote1 && vote2 > vote3 && vote2 > vote4) {
                                                                                                                                                                                                                  lcd.clear();
                                                                                                                                                                                                                          lcd.print("INC is Winner");
                                                                                                                                                                                                                                  delay(3000);
                                                                                                                                                                                                                                          lcd.clear();
                                                                                                                                                                                                                                                } else if (vote3 > vote1 && vote3 > vote2 && vote3 > vote4) {
                                                                                                                                                                                                                                                        lcd.clear();
                                                                                                                                                                                                                                                                lcd.print("AAP is Winner");
                                                                                                                                                                                                                                                                        delay(3000);
                                                                                                                                                                                                                                                                                lcd.clear();
                                                                                                                                                                                                                                                                                      } else if (vote4 > vote1 && vote4 > vote2 && vote4 > vote3) {
                                                                                                                                                                                                                                                                                              lcd.clear();
                                                                                                                                                                                                                                                                                                      lcd.print("OTH is Winner");
                                                                                                                                                                                                                                                                                                              delay(3000);
                                                                                                                                                                                                                                                                                                                      lcd.clear();
                                                                                                                                                                                                                                                                                                                            } else {
                                                                                                                                                                                                                                                                                                                                    lcd.clear();
                                                                                                                                                                                                                                                                                                                                            lcd.print("Tie Up Or");
                                                                                                                                                                                                                                                                                                                                                    lcd.setCursor(0, 1);
                                                                                                                                                                                                                                                                                                                                                            lcd.print("No Result");
                                                                                                                                                                                                                                                                                                                                                                    delay(3000);
                                                                                                                                                                                                                                                                                                                                                                            lcd.clear();
                                                                                                                                                                                                                                                                                                                                                                                  }
                                                                                                                                                                                                                                                                                                                                                                                      } else {
                                                                                                                                                                                                                                                                                                                                                                                            lcd.clear();
                                                                                                                                                                                                                                                                                                                                                                                                  lcd.print("No Voting....");
                                                                                                                                                                                                                                                                                                                                                                                                        delay(3000);
                                                                                                                                                                                                                                                                                                                                                                                                              lcd.clear();
                                                                                                                                                                                                                                                                                                                                                                                                                  }
                                                                                                                                                                                                                                                                                                                                                                                                                      vote1 = 0;
                                                                                                                                                                                                                                                                                                                                                                                                                          vote2 = 0;
                                                                                                                                                                                                                                                                                                                                                                                                                              vote3 = 0;
                                                                                                                                                                                                                                                                                                                                                                                                                                  vote4 = 0;
                                                                                                                                                                                                                                                                                                                                                                                                                                      digitalWrite(ledGreen, LOW);
                                                                                                                                                                                                                                                                                                                                                                                                                                          digitalWrite(ledRed, LOW);
                                                                                                                                                                                                                                                                                                                                                                                                                                              ThingSpeak.writeField(myChannelNumber, 1, vote1, myWriteAPIKey);
                                                                                                                                                                                                                                                                                                                                                                                                                                                  ThingSpeak.writeField(myChannelNumber, 2, vote2, myWriteAPIKey);
                                                                                                                                                                                                                                                                                                                                                                                                                                                      ThingSpeak.writeField(myChannelNumber, 3, vote3, myWriteAPIKey);
                                                                                                                                                                                                                                                                                                                                                                                                                                                          ThingSpeak.writeField(myChannelNumber, 4, vote4, myWriteAPIKey);
                                                                                                                                                                                                                                                                                                                                                                                                                                                            }

                                                                                                                                                                                                                                                                                                                                                                                                                                                              if ((millis() - lastTime) > timerDelay) {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  if (WiFi.status() != WL_CONNECTED) {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Serial.println("Attempting to connect to WiFi...");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              while (WiFi.status() != WL_CONNECTED) {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      WiFi.begin(ssid, password);
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              delay(5000);
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    }
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Serial.println("Connected to WiFi");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              }

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      if (x == 200) {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Serial.println("Channel update successful.");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                } else {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Serial.println("Problem updating channel. HTTP error code " + String(x));
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          }

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              lastTime = millis();
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                }
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                }

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                void connectWiFi() {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Serial.println("Connecting to WiFi...");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    WiFi.begin(ssid, password);
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      while (WiFi.status() != WL_CONNECTED) {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          delay(1000);
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Serial.println("Connecting to WiFi...");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                }
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Serial.println("Connected to WiFi");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  }