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!7

cmodule NLRulesBot extends DynTalkBot2<.ByServer> {
  start {
    makeByServer = () -> new ByServer;
    useAGIBlueForDropPunctuation = false;
    preprocessAtSelfToMyName = false;
    dropPunctuation = false;
  }
  
  sclass Rule {
    GlobalID globalID = aGlobalIDObj();
    bool enabled = true;
    S text;
    
    *() {} *(S *text) {}
  }
  
  S renderRule(Rule r) {
    ret r == null ? null : "Rule " + r.globalID +
      (enabled ? "" : " [disabled]") + ": " +
      r.text;
  }

  class ByServer extends DynTalkBot2.ByServer {
    new L<Rule> rules;
    new Set<Long> priorityChannels; // where we always respond
    bool enableMagicQuotes = true;
    
    synchronized S processSimplifiedLine(S s, O... _) {
      try answer super.processSimplifiedLine(s, _);
      
      new Matches m;
      S s2 = dropMyPrefixOrNull(s);
      if (s2 != null) s = s2;
      else if (!contains(priorityChannels, optPar channelID(_))) null;

      if "on * say *|on *, image-google X|on *, google X" {
        Rule r = firstWhereIC(rules, text := s);
        if (r != null) ret "Rule exists: " + r.globalID;
        rules.add(r = new Rule(s));
        change();
        ret "Rule added with ID " + r.globalID;
      }
      
      if "rules"
        ret lines(map(r -> renderRule(r), rules));
        
      if "delete rule *|delete rule with id *" {
        try answer checkAuth(_);
        Rule r = firstWhere(rules, globalID := GlobalID($1));
        if (r == null) ret "Rule " + $1 + " not found";
        rules.remove(r);
        change();
        ret "Rule deleted, " + nRule(rules) + " remain";
      }
      
      if "priority channel on" {
        try answer checkAuth(_);
        priorityChannels.add(longOptPar channelID(_)); change();
        ret "OK";
      }

      if "priority channel off" {
        try answer checkAuth(_);
        priorityChannels.remove(optPar channelID(_)); change();
        ret "OK";
      }
      
      if "disable magic quotes" {
        try answer checkAuth(_);
        enableMagicQuotes = false; change();
        ret "OK";
      }

      if (eqic(s, "help"))
        ret ltrim([[
I execute simple English rules.

Stuff to say.
@me on "hello bot" say "who are you"
@me masters / add master <username> / delete master <username>
@me help / support / source code

[Bot made by https://BotCompany.de]
  ]]).replace("@me", atSelf());
  
      // find rule to execute
      
      for (Rule r : rules) pcall {
        if (!r.enabled) continue;
        if (match("on * say *", r.text, m)) {
          S in = $1, out = $2;
          if (match(in, s))
            ret out;
        }
        
        if (match("on keyword * say *", r.text, m)) {
          S in = $1, out = $2;
          if (find(in, s))
            ret out;
        }
        
        if (match("on *, image-google X", r.text, m))
          if (flexMatchIC(replaceWord($1, "X", "*"), s, m)) {
            bool nsfw = discord_isNSFWChannel_gen(optPar channel(_));
            print(+nsfw);
            BufferedImage img = nsfw ? quickVisualize_nsfw($1) : quickVisualize($1);
            if (img == null) ret "No image found, sorry!";
            postImage(paramsToMap(_), uploadToImageServer(img, $1));
          }
          
        if (match("on *, google X", r.text, m))
          if (flexMatchIC(replaceWord($1, "X", "*"), s, m)) {
            bool nsfw = discord_isNSFWChannel_gen(optPar channel(_));
            print(+nsfw);
            ret discord_google($1, results := 1, safeSearch := !nsfw);
          }
      }
      
      if "download" {
        optPar Guild guild;
        optPar MessageChannel channel;
        if (guild == null) ret "Do this in a guild";
        ret serveGuildBackup(channel, guild,
          structure_nullingInstancesOfClass(_getClass(module()), ByServer.this));
      }
      
      if (enableMagicQuotes)
        try answer answer_magicQuoteInput(s);
      null;
    }
  }
  
  S serveGuildBackup(MessageChannel channel, Guild guild, S data) {
    S baseName = urlencode(jda_selfUserName(discord))
      + "-" + guild.getIdLong() + "-" + ymd_minus_hms();
    S zipName = baseName + ".zip";
    File zip = programFile("backups/" + zipName);
    createZipFileWithSingleTextFile(zip, baseName + ".txt", data);
    channel.sendMessage("Here's my latest brain contents for this guild.").addFile(zip).queue();
    null;
  }
}