#include <lvgl.h>
#include <lvgl/src/lv_core/lv_obj.h>
#include <lvgl/src/lv_core/lv_disp.h>
#include <lvgl/src/lv_themes/lv_theme_material.h>
#include <lvgl/src/lv_widgets/lv_btn.h>

// LVGL display buffer
static lv_disp_buf_t disp_buf;
static lv_color_t buf[LV_HOR_RES_MAX * 10];

void setup() {
  // Initialize LVGL
  lv_init();

  // Create a display buffer
  lv_disp_buf_init(&disp_buf, buf, NULL, LV_HOR_RES_MAX * 10);

  // Create an LVGL display
  lv_disp_drv_t disp_drv;
  lv_disp_drv_init(&disp_drv);
  disp_drv.flush_cb = [](lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p) {
    // Implement your display driver flush function here
    // This function is called by LVGL to update the display
    // Make sure to write the pixel data to your display hardware
  };
  disp_drv.buffer = &disp_buf;
  lv_disp_drv_register(&disp_drv);

  // Create a screen
  lv_obj_t *scr = lv_disp_get_scr_act(NULL);

  // Create a label
  lv_obj_t *label = lv_label_create(scr, NULL);
  lv_label_set_text(label, "Hello, LVGL!");

  // Create a button
  lv_obj_t *btn = lv_btn_create(scr, NULL);
  lv_obj_set_pos(btn, 50, 50);
  lv_obj_set_size(btn, 100, 40);
  lv_obj_t *label_btn = lv_label_create(btn, NULL);
  lv_label_set_text(label_btn, "Click me!");

  // Set button click event
  lv_btn_set_action(btn, LV_BTN_ACTION_CLICK, btn_click_action);
}

void loop() {
  // Handle LVGL tasks
  lv_task_handler();
  delay(5); // Adjust delay as needed
}

// Button click event handler
static void btn_click_action(lv_obj_t *btn, lv_event_t event) {
  if (event == LV_EVENT_CLICKED) {
    // Button clicked, implement your action here
    // For example, toggle an LED, change the screen, etc.
  }
}