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!7

concept Config {
  new RefL<S> bots; // contains program IDs
}

static new L<Pair<S, O>> bots; // pair(program ID, main class)

p {
  db();
  loadBots();
}

svoid loadBots {
  cleanUpAndClear(bots);
  for (S bot : config().bots)
    bots.add(pair(bot, run(bot)));
}

answer {
  lock dbLock();
  
  if "add bot *" {
    S id = formatSnippetID($1);
    bots.remove(id);
    bots.add(0, id);
    loadBots();
    ret "OK";
  }
  
  if "remove bot *" {
    S id = formatSnippetID($1);
    bots.remove(id);
    loadBots();
    ret "OK";
  }
  
  if "list bots"
    ret structForUser(config().bots);
    
  try answer scanMultipleBots(bots);
}

static Config config() { ret uniq_sync(Config); }