#include <PubSubClient.h>
#include <Adafruit_GFX.h>
#include <Wire.h>
#include <WiFi.h>
#include <stdlib.h>
#include <ESP32Servo.h>
#include <Time.h>
#include <Adafruit_SSD1306.h>

char clientId[50];
int servoPin1 = 12;
Servo servo1;
int servoPin2 = 4;
Servo servo2;
int servoPin3 = 15;
Servo servo3;
// Declare date variable

// Configure Seven segment
WiFiClient espClient;
PubSubClient client(espClient);
 
int ledPin1 = 4;
int ledPin2 = 12;
int ledPin3 = 13;
int ledPin4 = 5;

Adafruit_SSD1306 display(128, 64, &wire, 1);

void setup() 
{
  Serial.begin(9600);
  // Declare pins
  servo1.attach(servoPin1, 500, 2400);
  servo2.attach(servoPin2, 500, 2400);
  servo3.attach(servoPin3, 500, 2400);
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0X3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  delay(2000);
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  // Initiate Seven segment
  Serial.print("Connecting to...");
  WiFi.mode(WIFI_STA);
  WiFi.begin("Wokwi-GUEST", "");
  
  client.setServer("broker.emqx.io", 1883);
  client.setCallback(callback);

  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(ledPin3, OUTPUT);
  pinMode(ledPin4, OUTPUT);
}

void mqttReconnect() 
{
  while (!client.connected()) 
  {
    Serial.print("Attempting MQTT connection...");
    if (client.connect(clientId)) 
    {
      Serial.println("Connected");
      client.subscribe("topicName/time");
    } 
    else 
    {
      Serial.print("Connection failed trying again in 10 seconds");
      delay(5000);
    }
  }
}

void callback(char* topic, byte* message, unsigned int length) 
{
  String stMessage;
  for (int i = 0; i < length; i++)
  {
    stMessage += (char)message[i];
  }
  Serial.print("Message arrived: ");
  Serial.print(topic);
  Serial.print(" Message: ")
  string stMessage;

  for (int i=0; i < length; i++) {
    Serial.print((char)message[i]);
    stMessage += (char)message[i];
  }
  if(stMessage == "1"){
    Serial.println("1");
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.setCursor(10,0);
    display.println("Release Orbital Access Arm");
    display.display();
    servo1.write(180);
  } else if(stMessage == "2"){
    Serial.println("2");
    digitalWrite(ledPin1, HIGH);
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.setCursor(10,0);
    display.println("Main Engine go brrrr");
    display.display();
    servo2.write(0);
  } else if(stMessage == "3"){
    Serial.println("3");
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.setCursor(10,0);
    display.println("Activate Hydrogen burn-off system");
    display.display();
    digitalWrite(ledPin2, HIGH);
  } else if(stMessage == "4"){
    Serial.println("4");
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.setCursor(10,0);
    display.println("Main engine ignite");
    display.display();
    digitalWrite(ledPin3, HIGH);
  } else if(stMessage == "5"){
    Serial.println("5");
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.setCursor(10,0);
    display.println("Hydrogen vent arm, release tail surface mass, detonate hold");
    display.display();
    servo3.write(360);
  } else if(stMessage == "6"){
    Serial.println("6");
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.setCursor(10,0);
    display.println("Ignite!!!");
    display.display();
    digitalWrite(ledPin4, HIGH);
  }
}
void loop() 
{
  if (!client.connected()) 
  {
    mqttReconnect();
  }
  client.loop();

  // Set the number
  // Display the number
  // delay() function
}