<?php

function get_dashboard_info(){
  
    $cachefile = __DIR__.'/dashboard_cache/1Df6qy0uqMBc-H9NcxQle4frV95Yrvc-L.cache';
    $data = '';
    if(file_exists($cachefile)){
      $filemdatetime = date('Y-m-d H:i:s', filemtime($cachefile)+28800);//28800 for taipei timezone +8 
      $diff = get_dates_diff($filemdatetime, now());
      $is_too_old = ($diff->d>0 || $diff->m>0 || $diff->y>0);
      if(!$is_too_old){
        $data = file_get_contents($cachefile);
      }
    }
    if(!$data){
      $data = file_get_contents('https://docs.google.com/spreadsheets/d/e/2PACX-1vTjlgCkkYF27MLsD4oLSNLwDzpTn_sK0cJxaZ2k18TR0vn92YprsGkUxCg0YpD_W7XUIEQBeeO9Ga1d/pub?gid=2146907259&single=true&output=tsv');//Last updated 2022.05.18 by ben.wang
      file_put_contents($cachefile, $data);
      if(isset($_GET['debug'])){
        echo $cachefile;
      }
    }
    $data = explode("\r\n",$data);
  
    $dashboard_acc=array();
    for($i=1;$i<count($data);++$i){
      list($key,$val) = explode("\t",$data[$i]);
      $dashboard_acc[strtolower(str_replace(" ","_",$key)."_count")]=$val;
    }
    $filemdatetime = date('Y/m/d H:i', filemtime($cachefile)+28800);
    $dashboard_acc['update_time']=$filemdatetime;
    return $dashboard_acc;
  }