pgn-manager/dist/utils.js

Libraray built on top of chess.js and pgn-parser to load and process PGN files in typescript.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.regeneratePGN = regeneratePGN;
/**
 * Regenerates a PGN string from a ParsedPGN object
 */
function regeneratePGN(parsedPGN, moveColor) {
    const lines = [];
    // Add comments above header
    if (parsedPGN.comments_above_header) {
        parsedPGN.comments_above_header.forEach((comment) => {
            lines.push(`{${comment.text}}`);
        });
        lines.push("");
    }
    // Add headers
    if (parsedPGN.headers) {
        parsedPGN.headers.forEach((header) => {
            lines.push(`[${header.name} "${header.value}"]`);
        });
        lines.push("");
    }
    // Add comments between headers and moves
    if (parsedPGN.comments) {
        parsedPGN.comments.forEach((comment) => {
            lines.push(`{${comment.text}}`);
        });
        lines.push("");
    }
    // Add moves
    const movesText = formatMoves(parsedPGN.moves, moveColor);
    if (movesText) {
        lines.push(movesText);
    }
    // Add result
    lines.push(parsedPGN.result);
    return lines.join("\n");
}
/**
 * Formats moves array into PGN move notation
 */
function formatMoves(moves, moveColor) {
    const parts = [];
    moves.forEach((move) => {
        // Add move number for white moves
        if (move.move_number !== undefined) {
            parts.push(`${move.move_number}.`);
            if (moveColor.get(move) === "b") {
                parts[parts.length - 1] += "..";
            }
        }
        // Add the move
        parts.push(move.move);
        // Add comments after the move
        move.comments.forEach((comment) => {
            parts.push(`{${comment}}`);
        });
        // Add variations (RAVs)
        if (move.ravs) {
            move.ravs.forEach((rav) => {
                const ravMoves = formatMoves(rav.moves, moveColor);
                const ravResult = rav.result ? ` ${rav.result}` : "";
                parts.push(`(${ravMoves}${ravResult})`);
            });
        }
    });
    return parts.join(" ");
}