package chess

import (
	"mchess_server/types"
	"strings"
)

func (b *Board) PGN() string {
	var pgn string
	var shortName string

	for row := types.RangeFirstValid; row <= types.RangeLastValid; row++ {
		for col := types.RangeFirstValid; col <= types.RangeLastValid; col++ {
			coord := types.Coordinate{Col: col, Row: row}
			piece := b.getPieceAt(coord)

			if piece != nil {
				shortName = GetShortNameForPiece(piece).String()
				if piece.GetColor() == types.White {
					shortName = strings.ToUpper(shortName)
				}
				pgn = pgn + shortName
			} else {
				pgn = pgn + "-"
			}
		}

		if row != types.RangeLastValid {
			pgn = pgn + "/"
		}
	}
	return pgn
}