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!7

// cmodule fails because of loadPageWithUserAgent
module GBot > DynDiscordHopper {
  new Map<Long, ByServer> dataByServer;
  int guildCount;
  long searches;
  
  class ByServer {
    bool isGuild;
    S myName = "GBot";
    int defaultResults = 1;
    Set<S> syntaxes = synchroSet();
    
    S answer(S s, Map map) {
      new Matches m;
      
      if (discordBotID != 0)
        s = replacePrefix("<@" + discordBotID + ">", myName + " ", s);
      
      s = simpleSpaces_noTok(s);
      s = regexpReplace_direct(s, "\\s+:", ":");
      
      if (eqic(s, myName + " guild count")) ret str(guildCount);
      if (eqic(s, myName + " searches")) ret str(searches);
      
      if (eqicOneOf(replaceIC(words2_spaces(s), " show ", " "), myName + " Help", myName + " info", myName + " commands"))
        ret loadSnippet(#1024125);
      
      if (swic_trim(s, myName + ":", m))
        ret doIt(m.rest(), map);
        
      if (swic_trim(s, myName + " default results:", m)) {
        setField(defaultResults := parseInt(m.rest());
        ret "OK, returning " + nResults(defaultResults) + " from now on";
      }
        
      if (eqic(s, myName + " default results"))
        ret "I'm returning " + nResults(defaultResults) + " by default";
      
      if (eqic(s, myName + " syntaxes"))
        ret backtickQuote(lines_rtrim(elementPlusList(myName + ": ...", syntaxes)));
        
      if (swic_trim_any(s, m, myName + " new syntax:", myName + " add syntax:")) {
        S syntax = massageSyntax(m.rest());
        if (!endsWithEllipsis(syntax))
          ret "Shouldn't this end with \"...\"? >> " + syntax;
        if (!syntaxes.add(syntax)) ret "I already know that syntax!";
        change();
        ret "Syntax added! You can try: " + backtickQuote(replaceSuffix("...", randomThingToGoogle(), syntax));
      }
      
      if (swic_trim(s, myName + " forget syntax:", m)) {
        S syntax = massageSyntax(m.rest());
        if (!syntaxes.remove(syntax)) ret "Syntax not found";
        change();
        ret "Syntax removed!";
      }
      
      if (ellipsisToDotPlusRegexpIC_matchAny(syntaxes, s, m))
        ret doIt(m.rest(), map);
      
      null;
    }
    
    bool setField(S name, O value) {
      if (set_trueIfChanged(this, name, value)) false;
      ret true with _change();
    }
    
    S doIt(S query, Map map) {
      LS l = regexpICFullMatch_groups("(\\d+) results? for[ :](.+)", query);
      int results = defaultResults;
      if (l != null) {
        results = parseInt(first(l));
        query = unquote(trim(last(l)));
      }
      bool safeSearch = !discord_isNSFWChannel_gen(map.get('channel));
      setField(searches := searches+1);
      ret discord_google(query, +results, +safeSearch);
    }
  }
  
  @Override S answer(S input, Map map) {
    ret mapEachLine_tlft_nempties(input, s -> {
      // config by guild or user
      long guildID = toLong(map.get('guildID));
      long id = guildID;
      print("Guild ID: " + guildID);
      if (id == 0) {
        id = toLong(map.get('userID));
        print("User ID: " + id);
      }
      
      ByServer data, bool isNew = unpair syncGetOrCreate2(dataByServer, id, func -> ByServer { new ByServer });
      data.isGuild = id == guildID;
      if (isNew) {
        if (data.isGuild) ++guildCount;
        change();
      }
      ret data.answer(s, map);
    });
  }
  
  S randomThingToGoogle() {
    ret "why are penguins black and white?";
  }
  
  S massageSyntax(S syntax) {
    syntax = unquote(syntax);
    ret trim(dropSuffix("...", syntax)) + " ...";
  }
  
  start {
    if (guildCount == 0) setField(guildCount := countValuesWhere(dataByServer, isGuild := true));
  }
}