#include "HD44780.h"
#include <driver/i2c.h>
#include <esp_log.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <stdio.h>

#define LCD_ADDR 0x27
#define SDA_PIN 21
#define SCL_PIN 22
#define LCD_COLS 16
#define LCD_ROWS 2

void app_main(void) {
  char *tag = "LCD_16x2";

  ESP_LOGI(tag, "starting app_main");

  LCD_init(LCD_ADDR, SDA_PIN, SCL_PIN, LCD_COLS, LCD_ROWS);

  // LCD_clearScreen();
  //  LCD_writeStr("Hello There");
  //  LCD_setCursor(0, 1);
  //  LCD_writeStr("  Second Row!      ");

  char num[8];
  while (true) {
    LCD_clearScreen();
    LCD_writeStr("Counting Down");

    for (int i = 10; i >= 0; i--) {
      LCD_setCursor(8, 1);
      sprintf(num, "%d", i);
      LCD_writeStr(num);
      vTaskDelay(1000 / portTICK_PERIOD_MS);

      LCD_setCursor(0, 1);
      LCD_writeStr("                ");
    }
    LCD_clearScreen();
    LCD_writeStr("Liftoff!");
    vTaskDelay(2000 / portTICK_PERIOD_MS);
  }
}