Started code review + some fixes (unfinished)

[vchess.git] / client / src / data / challengeCheck.js

import { extractTime } from "@/utils/timeControl";

export function checkChallenge(c) {
  const vid = parseInt(c.vid);
  if (isNaN(vid) || vid <= 0) return "Please select a variant";

  const tc = extractTime(c.cadence);
  if (!tc) return "Wrong time control";

  // Basic alphanumeric check for opponent name
  if (c.to) {
    // NOTE: slightly redundant (see data/userCheck.js)
    if (!c.to.match(/^[\w]+$/)) return "Wrong characters in opponent name";
  }

  // Allow custom FEN (and check it) only for individual challenges
  if (c.fen.length > 0 && !!c.to) {
    if (!V.IsGoodFen(c.fen)) return "Bad FEN string";
  } else c.fen = "";

  return "";
}