variant.ts

// NOTE: This skips a bunch of stuff for now.
// This only implements enough for minimal functionality of `pgn.ts`.

import { iterAny } from './utils'
import { Board } from './index'

const VARIANTS: (typeof Board)[] = [
  Board,
  /* TODO: Add variant board support */
  // SuicideBoard, GiveawayBoard, AntichessBoard,
  // AtomicBoard,
  // KingOfTheHillBoard,
  // RacingKingsBoard,
  // HordeBoard,
  // ThreeCheckBoard,
  // CrazyhouseBoard,
]

/**
 * Looks for a variant board class by variant name. Supports many common
 * aliases.
 */
export const findVariant = (name: string): typeof Board => {
  for (const variant of VARIANTS) {
    if (
      iterAny(
        variant.aliases,
        alias => alias.toLowerCase() === name.toLowerCase(),
      )
    ) {
      return variant
    }
  }
  throw new Error(`ValueError: unsupported variant: ${name}`)
}

export default {
  findVariant,
}