#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

#define OLED_RESET -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

const String loremipsum = "hello i am Arvind Patil, from india "
  " this project is example of scrolling text, on ssd1306 oled "
  "this is a simulated project no hardware is used, "
  "the fastest way to learn electronics, "
  "thanks to wokwi simulator "
 


  "HAVE A NICE DAY, "
  
  "JAI HIND NAMASTE.";

void setup() {
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;);
  }

  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setTextWrap(false);
  display.setCursor(0, 0);
  display.display();
  delay(3000);
  display.clearDisplay();
}

void loop() {
  static uint16_t start_at = 0;
  display.clearDisplay();

  int lineHeight = 8; // Adjust this value according to the font size you're using
  int lineCount = SCREEN_HEIGHT / lineHeight;
  int x = 0;
  int y = 0;

  for (int i = 0; i < lineCount; i++) {
    int lineStart = start_at;
    String line = "";
    int lineWidth = 0;

    while (lineWidth < SCREEN_WIDTH && lineStart < loremipsum.length()) {
      char c = loremipsum.charAt(lineStart++);
      if (c == ' ' || c == '\n') {
        int16_t x1, y1;
        uint16_t w, h;
        display.getTextBounds(line, x, y, &x1, &y1, &w, &h);
        if (x + w > SCREEN_WIDTH) {
          break;
        }
        line += c;
      } else {
        line += c;
      }
    }

    display.setCursor(x, y);
    display.print(line);
    y += lineHeight;
    start_at = lineStart;

    if (start_at >= loremipsum.length()) {
      start_at = 0;
      break;
    }
  }

  display.display();
  delay(1000);
}