/*
 * @Author: Flying
 * @Date: 2022-02-25 22:54:00
 * @LastEditors: Flying
 * @LastEditTime: 2022-06-08 22:15:58
 * @Description: file content
 */

/*********************
 *      INCLUDES
 *********************/
#define _DEFAULT_SOURCE /* needed for usleep() */
#include <stdlib.h>
#include <unistd.h>
#define SDL_MAIN_HANDLED /*To fix SDL's "undefined reference to WinMain" issue*/
#include "base_main.h"
#include <SDL2/SDL.h>
#include "lvgl/lvgl.h"
#include "my_drivers/display/monitor.h"
#include "my_drivers/indev/mouse.h"
#include "my_drivers/indev/keyboard.h"
#include "my_drivers/indev/mousewheel.h"

static void hal_init(void);
static int tick_thread(void *data);

int main(int argc, char **argv)
{
  (void)argc; /*Unused*/
  (void)argv; /*Unused*/

  /*Initialize LVGL*/
  lv_init();

  /*Initialize the HAL (display, input devices, tick) for LVGL*/
  hal_init();
  my_app_init(argc, argv);

  my_app_main(argc, argv);

  return 0;
}

/**********************
 *   STATIC FUNCTIONS
 **********************/

/**
 * Initialize the Hardware Abstraction Layer (HAL) for the LVGL graphics
 * library
 */
static void hal_init(void)
{
  /* Use the 'monitor' driver which creates window on PC's monitor to simulate a display*/
  monitor_init();
  /* Tick init.
   * You have to call 'lv_tick_inc()' in periodically to inform LittelvGL about
   * how much time were elapsed Create an SDL thread to do this*/
  SDL_CreateThread(tick_thread, "tick", NULL);

  /*Create a display buffer*/
  static lv_disp_draw_buf_t disp_buf1;
  lv_color_t *buf1_1 = (lv_color_t *)malloc(sizeof(lv_color_t) * MY_UI_W_MAX * MY_UI_H_MAX);
  lv_color_t *buf1_2 = (lv_color_t *)malloc(sizeof(lv_color_t) * MY_UI_W_MAX * MY_UI_H_MAX);
  lv_disp_draw_buf_init(&disp_buf1, buf1_1, buf1_2, MY_BASE_H_MAX * MY_BASE_W_MAX);

  /*Create a display*/
  static lv_disp_drv_t disp_drv;
  lv_disp_drv_init(&disp_drv); /*Basic initialization*/
  disp_drv.draw_buf = &disp_buf1;
  disp_drv.flush_cb = monitor_flush;
  disp_drv.hor_res = MY_UI_W_MAX;
  disp_drv.ver_res = MY_UI_H_MAX;
  disp_drv.antialiasing = 1;

  lv_disp_t *disp = lv_disp_drv_register(&disp_drv);

  lv_theme_t *th = lv_theme_default_init(disp, lv_palette_main(LV_PALETTE_BLUE), lv_palette_main(LV_PALETTE_RED), LV_THEME_DEFAULT_DARK, LV_FONT_DEFAULT);
  lv_disp_set_theme(disp, th);

  lv_group_t *g = lv_group_create();
  lv_group_set_default(g);

  /* Add the mouse as input device
   * Use the 'mouse' driver which reads the PC's mouse*/
  mouse_init();
  static lv_indev_drv_t indev_drv_1;
  lv_indev_drv_init(&indev_drv_1); /*Basic initialization*/
  indev_drv_1.type = LV_INDEV_TYPE_POINTER;

  /*This function will be called periodically (by the library) to get the mouse position and state*/
  indev_drv_1.read_cb = mouse_read;
  lv_indev_t *mouse_indev = lv_indev_drv_register(&indev_drv_1);

  keyboard_init();
  static lv_indev_drv_t indev_drv_2;
  lv_indev_drv_init(&indev_drv_2); /*Basic initialization*/
  indev_drv_2.type = LV_INDEV_TYPE_KEYPAD;
  indev_drv_2.read_cb = keyboard_read;
  lv_indev_t *kb_indev = lv_indev_drv_register(&indev_drv_2);
  lv_indev_set_group(kb_indev, g);
  mousewheel_init();
  static lv_indev_drv_t indev_drv_3;
  lv_indev_drv_init(&indev_drv_3); /*Basic initialization*/
  indev_drv_3.type = LV_INDEV_TYPE_ENCODER;
  indev_drv_3.read_cb = mousewheel_read;

  lv_indev_t *enc_indev = lv_indev_drv_register(&indev_drv_3);
  lv_indev_set_group(enc_indev, g);

  // /*Set a cursor for the mouse*/
  // LV_IMG_DECLARE(mouse_cursor_icon);                  /*Declare the image file.*/
  // lv_obj_t *cursor_obj = lv_img_create(lv_scr_act()); /*Create an image object for the cursor */
  // lv_img_set_src(cursor_obj, &mouse_cursor_icon);     /*Set the image source*/
  // lv_indev_set_cursor(mouse_indev, cursor_obj);       /*Connect the image  object to the driver*/
}

/**
 * A task to measure the elapsed time for LVGL
 * @param data unused
 * @return never return
 */
static int tick_thread(void *data)
{
  (void)data;

  while (1)
  {
    SDL_Delay(5);
    lv_tick_inc(5); /*Tell LittelvGL that 5 milliseconds were elapsed*/
  }

  return 0;
}