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gchess

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gchess src board_map.gleam
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src/board_map.gleam 

import position.{type Position}

import piece.{type Piece}

import board.{type BoardBB}

import fen.{parse_board}

import gleam/option.{type Option}

import gleam/map

import gleam/string

import gleam/list



// Representation of the the board as a map of positions to pieces

// Used for pretty printing the state of the board

pub type BoardMap =

  map.Map(Position, Option(Piece))



pub fn from_fen(fen: String) -> BoardBB {

  let fen_string_parts = string.split(fen, " ")

  let parsed_board = case list.length(fen_string_parts) == 6 {

    False -> panic as "Invalid FEN string"

    True -> {

      let [board_string, ..] = fen_string_parts

      let parsed_board = parse_board(board_string)

      parsed_board

    }

  }

  parsed_board

}