#include "lvgl.h"
#include <stdio.h>
#include <string.h>

#define SCREEN_W    1024
#define SCREEN_H    600
#define TOTAL_ROWS  50
#define VISIBLE_ROWS 15
#define COL_CNT     6

/* Dynamic Row 7 Data */
typedef struct {
    int vol;
    int temp;
    int res;
} row_data_t;

static row_data_t row7_data = {1,1,601};

/* ===== Get Row Text ===== */
static void get_row_text(int row, int col, char * buf, int len)
{
    if(row == 6) { // Row 7 dynamic data
        switch(col){
            case 0: lv_snprintf(buf,len,"7"); break;
            case 1: lv_snprintf(buf,len,"BT007"); break;
            case 2: lv_snprintf(buf,len,"12.%03d",row7_data.vol); break;
            case 3: lv_snprintf(buf,len,"20.%03d",row7_data.temp); break;
            case 4: lv_snprintf(buf,len,"%d",row7_data.res); break;
            case 5: lv_snprintf(buf,len,"2025-12-17 17:05"); break;
            default: buf[0]=0; break;
        }
        return;
    }

    switch(col){
        case 0: lv_snprintf(buf,len,"%d",row+1); break;
        case 1: lv_snprintf(buf,len,"BT%03d",row+1); break;
        case 2: lv_snprintf(buf,len,"12.%03d",row+1); break;
        case 3: lv_snprintf(buf,len,"20.%03d",row+1); break;
        case 4: lv_snprintf(buf,len,"%d",601+row); break;
        case 5: lv_snprintf(buf,len,"2025-12-17 17:05:%02d",row%60); break;
        default: buf[0]=0; break;
    }
}

/* ===== Update Row 7 ===== */
static void update_row7(lv_obj_t * table)
{
    char buf[32];
    for(int c=0;c<COL_CNT;c++){
        get_row_text(6,c,buf,sizeof(buf));
        lv_table_set_cell_value(table, 6, c, buf);
    }
}

/* ===== Timer Callback ===== */
static void row7_timer_cb(lv_timer_t * t)
{
    lv_obj_t * table = (lv_obj_t *)lv_timer_get_user_data(t);
    row7_data.vol++;
    row7_data.temp++;
    row7_data.res++;
    update_row7(table);
}

/* ===== Main Demo ===== */
void demo_table(void)
{
    lv_obj_t * scr = lv_scr_act();
    lv_obj_clean(scr);

    /* Scrollable container */
    lv_obj_t * cont = lv_obj_create(scr);
    lv_obj_set_size(cont, SCREEN_W, SCREEN_H);
    lv_obj_set_scroll_dir(cont, LV_DIR_VER);
    lv_obj_set_scrollbar_mode(cont, LV_SCROLLBAR_MODE_AUTO);

    /* Create table */
    lv_obj_t * table = lv_table_create(cont);
    lv_table_set_col_cnt(table, COL_CNT);
    lv_table_set_row_cnt(table, TOTAL_ROWS);

    /* Fill headers */
    const char * headers[COL_CNT] = {"No","name","vol","temp","res","time"};
    for(int c=0;c<COL_CNT;c++){
        lv_table_set_cell_value(table, 0, c, headers[c]);
    }

    /* Fill data */
    char buf[32];
    for(int r=1;r<TOTAL_ROWS;r++){
        for(int c=0;c<COL_CNT;c++){
            get_row_text(r,c,buf,sizeof(buf));
            lv_table_set_cell_value(table, r, c, buf);
        }
    }

    /* Adjust table width/height */
    lv_obj_set_width(table, SCREEN_W);
    // 高度由容器和字体自动控制，滚动条会出现

    /* Row 7 动态更新 Timer */
    lv_timer_create(row7_timer_cb, 500, table);

    /* Scroll to top initially */
    lv_obj_scroll_to_y(cont, 0, LV_ANIM_OFF);
}