common.php

   1 <?php declare(strict_types=1);
   2
   3 namespace Common;
   4
   5 require 'vendor/autoload.php';
   6 require __DIR__ . '/config.php';
   7
   8 use Telegram\Bot\Api;
   9 use DateTimeImmutable;
  10
  11 function getTelegram() {
  12     STATIC $tg;
  13     return $tg = $tg ?? new \Telegram\Bot\Api(BOT_TOKEN);
  14 }
  15
  16 function splitBill($amount) {
  17     return floor($amount/2);
  18 }
  19
  20 function identity($x) {
  21     return $x;
  22 }
  23
  24 function getMessageSender($update) {
  25     return PARTICIPANT_IDS[$update->get('message')->get('from')->get('id')];
  26 }
  27
  28 function getMessageSenderDisplayName($update) {
  29     return $update->get('message')->get('from')->get('first_name');
  30 }
  31
  32 function canChatWith($update) {
  33     return in_array($update->get('message')->get('from')->get('id'), array_keys(PARTICIPANT_IDS));
  34 }
  35
  36 function debug($whatever) {
  37     echo '<pre>';
  38     print_r($whatever);
  39     echo '</pre>';
  40 }
  41
  42 function getInbox($inbox) {
  43     STATIC $inboxes;
  44
  45     if (!isset($inboxes[$inbox])) {
  46         $inboxes[$inbox] = imap_open(
  47             '{imap.gmail.com:993/debug/imap/ssl/novalidate-cert}' . $inbox,
  48             EMAIL,
  49             PASSWORD
  50         );
  51     }
  52
  53     return $inboxes[$inbox];
  54 }
  55
  56 function getMessagesFromInbox($inbox, array $rules, $unseenOnly = true) {
  57     return array_filter(
  58         array_map(
  59             function($rule, $service) use ($inbox, $unseenOnly) {
  60                 $emails = imap_search($inbox, ['SEEN ', 'UNSEEN '][$unseenOnly] . $rule['imapQuery'], SE_UID);
  61
  62                 if(!$emails) {
  63                     return [];
  64                 }
  65
  66                 $body = imap_fetchbody($inbox, $emails[0], '1', FT_UID);
  67                 preg_match($rule['regex'], $rule['messageTransform']($body), $matches);
  68
  69                 return [
  70                     'service' => $service,
  71                     'id' => substr(md5($body), 0, 6),
  72                     'uid' => $emails[0],
  73                     'telegramMessage' => $rule['telegramMessage'],
  74                     'due' => new DateTimeImmutable($rule['dateTransform']($matches['due'])),
  75                     'amount' => $matches['amount']
  76                 ];
  77             },
  78             $rules,
  79             array_keys($rules)
  80         ),
  81         function($e) {
  82             return !!$e;
  83         }
  84     );
  85 }