app/Models/ChatLog.php

   1 <?php
   2
   3 namespace App\Models;
   4
   5 use Illuminate\Database\Eloquent\Factories\HasFactory;
   6 use Illuminate\Database\Eloquent\Model;
   7 use LanguageDetector\LanguageDetector;
   8
   9 class ChatLog extends Model {
  10
  11         use HasFactory;
  12
  13         public function channel() {
  14                 return $this->belongsTo(Channel::class);
  15         }
  16
  17         public function user() {
  18                 return $this->belongsTo(User::class);
  19         }
  20
  21         public function evaluate() {
  22                 $this->evaluateUser();
  23                 $this->evaluateChannel();
  24
  25                 if (is_null($this->nick)) {
  26                         $this->type = 'system';
  27                         return;
  28                 }
  29                 if (in_array($this->nick, ['horstiebot', 'localhorsttv'])) {
  30                         $this->type = 'self';
  31                         return;
  32                 }
  33
  34                 if ($this->command == 'PRIVMSG') {
  35                         if ($this->isKnownBot()) {
  36                                 $this->type = 'bot';
  37                         } else if (substr($this->params[0], 0, 1) == '#') {
  38                                 $this->type = 'chat';
  39                         } else {
  40                                 $this->type = 'dm';
  41                         }
  42                         $this->text_content = $this->params[1];
  43                         $this->detectLanguage();
  44                         if ($this->scanForSpam()) {
  45                                 $this->banned = true;
  46                         }
  47                         return;
  48                 }
  49
  50                 throw new \Exception('unidentified message');
  51         }
  52
  53         public function isKnownBot() {
  54                 return in_array(strtolower($this->nick), [
  55                         'funtoon',
  56                         'nightbot',
  57                         'pokemoncommunitygame',
  58                         'streamelements',
  59                         'wizebot',
  60                         'zockerstuebchen',
  61                 ]);
  62         }
  63
  64         protected function evaluateUser() {
  65         }
  66
  67         protected function evaluateChannel() {
  68                 if (empty($this->params)) {
  69                         $this->channel()->associate(null);
  70                         return;
  71                 }
  72                 $cname = $this->params[0];
  73                 if (substr($cname, 0, 1) != '#') {
  74                         $cname = '#'.$cname;
  75                 }
  76                 $channel = Channel::firstWhere('twitch_chat', '=', $cname);
  77                 $this->channel()->associate($channel);
  78         }
  79
  80         protected function detectLanguage() {
  81                 $languages = ['de', 'en', 'es', 'fr'];
  82                 if (!is_null($this->channel)) {
  83                         $languages = array_values($this->channel->languages);
  84                         if (!in_array('en', $languages)) {
  85                                 $languages[] = 'en';
  86                         }
  87                 }
  88                 $detector = LanguageDetector::detect($this->text_content, $languages);
  89                 $scores = $detector->getScores();
  90                 $lang = strval($detector->getLanguage());
  91                 //var_dump($scores, $lang, $this->text_content);
  92                 if (is_array($scores) && isset($scores[$lang]) && $scores[$lang] > 0.35) {
  93                         $this->detected_language = $lang;
  94                 }
  95         }
  96
  97         protected function scanForSpam() {
  98                 if (substr($this->text_content, 0, 1) == '!') {
  99                         return true;
 100                 }
 101                 if (strpos($this->text_content, '$') !== false) {
 102                         return true;
 103                 }
 104                 if (strpos($this->text_content, '€') !== false) {
 105                         return true;
 106                 }
 107                 if (strpos($this->text_content, '@') !== false) {
 108                         return true;
 109                 }
 110                 if (strpos($this->text_content, '://') !== false) {
 111                         return true;
 112                 }
 113                 if (is_numeric($this->text_content)) {
 114                         return true;
 115                 }
 116                 if (strpos($this->text_content, 'followers') !== false) {
 117                         return true;
 118                 }
 119                 if (strpos($this->text_content, 'promotion') !== false) {
 120                         return true;
 121                 }
 122                 if (strpos($this->text_content, 'viewers') !== false) {
 123                         return true;
 124                 }
 125                 if (strpos($this->text_content, 'view ers') !== false) {
 126                         return true;
 127                 }
 128                 return false;
 129         }
 130
 131         protected $casts = [
 132                 'banned' => 'boolean',
 133                 'params' => 'array',
 134                 'tags' => 'array',
 135                 'user_id' => 'string',
 136         ];
 137
 138         protected $fillable = [
 139                 'command',
 140                 'nick',
 141                 'params',
 142                 'tags',
 143         ];
 144
 145 }