// // for requesting time
// #include <WiFi.h>
// #include <time.h>
// for the display

// for the display
#include <Wire.h> //wire library responsible for the I2C communication
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

// for the display
#define SCREEN_WIDTH 128 //OLED display width in pixels
#define SCREEN_HEIGHT 64 //OLED dispaly height in pixels
#define OLED_RESET -1 //reset pin for the display is same as the esp32 board
#define SCREEN_ADDRESS 0x3C //see datasheet for the adddress //this is I3C address of the OLED display

// // for requesting time
// const char* ssid     = "Wokwi-GUEST";
// const char* password = "";
// const char* ntpServer = "pool.ntp.org";
// const long gmtOffset_sec = 0;
// const int daylightOffset_sec = 3600;

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); //creating a object for the OLED display
//we have to specify screen width, screen height, wire libry and reset pin

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600); //initialize the serial communication

  //to initialize the oled display we are using the begin function
  //the input we have to provide in the documentation of the libry
  //then we have to give the address of the display
  if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); //dont proceed loop forever
  }
  //if clause is there to show us whether the oled is display is initialized properly
  //exclamation mark is logical not operator
  //when the display is not properly initialized the condition will become false and print the line 
  //because of the infinite for loop without any input...so the code will not execute beyond when the oled isplay is not working.


  //show initial display buffer contents on the screen
  //the library initializes this with an adafruit splash screen
  display.display();
  delay(2000); //pause for 3 seconds

  //clear the buffer 
  //buffer is like the logo of the company
  display.clearDisplay(); //here we are starting the display

  display.setTextSize(1); //adding a text size for the display
  display.setTextColor(SSD1306_WHITE); //adding a text color
  display.setCursor(0,0); //getting the cursor to the origin
  display.println(F("welcome to medibox"));
  display.display();

  // // connect to the wifi
  // Serial.print("Connecting to ");
  // Serial.println(ssid);
  // WiFi.begin(ssid, password);
  // while (WiFi.status() != WL_CONNECTED) {
  //   delay(500);
  //   Serial.print(".");
  // }
  // Serial.println("");
  // Serial.println("WiFi connected.");
  // // Init and get the time
  // configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
  // printLocalTime();
  // // disconnect WiFi as it is no longer needed.
  // WiFi.disconnect(true);
  // WiFi.mode(WIFI_OFF);

}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}


// void printLocalTime() {
//   struct tm timeinfo;
//   if (!getLocalTime(&timeinfo)) {
//     Serial.println("Failed to obtain time");
//     return;
//   }
//   Serial.println(&timeinfo, "%A, %B %d   %H:%M:%S");
// }