#include "lvgl.h"
#include "demos/lv_demos.h"
#include "display/fbdev.h"
#include "indev/evdev.h"
#include "Log.h"
#include <unistd.h>
#include <pthread.h>
#include <time.h>
#include <sys/time.h>

#define DISP_BUF_SIZE (240 * 360)

static bool LvglRuning = false;

int lvgl_board_main(const unsigned int width, const unsigned int height, void (*appInit)())
{
    static lv_color_t *DispBuf = NULL;
    /*A small buffer for LittlevGL to draw the screen's content*/
    int dispBufSize = width * height;
    if (NULL == DispBuf)
    {
        DispBuf = (lv_color_t *)malloc(sizeof(lv_color_t) * dispBufSize);
        if (NULL == DispBuf)
        {
            LogError("malloc failed.\n");
            return -1;
        }
    }

    /*LittlevGL init*/
    lv_init();

    /*Linux frame buffer device init*/
    fbdev_init();

    /*Initialize a descriptor for the buffer*/
    static lv_disp_draw_buf_t disp_buf;
    lv_disp_draw_buf_init(&disp_buf, DispBuf, NULL, dispBufSize);

    /*Initialize and register a display driver*/
    static lv_disp_drv_t disp_drv;
    lv_disp_drv_init(&disp_drv);
    disp_drv.draw_buf = &disp_buf;
    disp_drv.flush_cb = fbdev_flush;
    disp_drv.hor_res = width;
    disp_drv.ver_res = height;
    lv_disp_drv_register(&disp_drv);

    // mouse start
    // evdev_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 = evdev_read;
    // lv_indev_t *mouse_indev = lv_indev_drv_register(&indev_drv_1);

    // /*Set a cursor for the mouse*/
    // LV_IMG_DECLARE(mouse_cursor_icon)
    // 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*/
    // mouse end

    /*Create a Demo*/
    // lv_demo_widgets();
    if (appInit)
    {
        appInit();
    }

    /*Handle LitlevGL tasks (tickless mode)*/
    LvglRuning = true;
    while (LvglRuning)
    {
        lv_timer_handler();
        usleep(5000);
    }
    // lv_deinit();
    fbdev_exit();
    if (DispBuf)
    {
        free(DispBuf);
        DispBuf = NULL;
    }
    return 0;
}

int lvgl_board_exit(void)
{
    LogInfo("lvgl_board_exit.\n");
    LvglRuning = false;
    return 0;
}
/*Set in lv_conf.h as `LV_TICK_CUSTOM_SYS_TIME_EXPR`*/
uint32_t custom_tick_get(void)
{
    static uint64_t start_ms = 0;
    if (start_ms == 0)
    {
        struct timeval tv_start;
        gettimeofday(&tv_start, NULL);
        start_ms = (tv_start.tv_sec * 1000000 + tv_start.tv_usec) / 1000;
    }

    struct timeval tv_now;
    gettimeofday(&tv_now, NULL);
    uint64_t now_ms;
    now_ms = (tv_now.tv_sec * 1000000 + tv_now.tv_usec) / 1000;

    uint32_t time_ms = now_ms - start_ms;
    return time_ms;
}