igir/dist/src/gameGrouper.js

🕹 A zero-setup ROM collection manager that sorts, filters, extracts or archives, patches, and reports on collections of any size on any OS.

export default {
    /**
     * Given an array of objects that contain {@link Game}s, and a function to fetch those
     * {@link Game}s' names, group those objects together with the disc numbers stripped.
     */
    groupMultiDiscGames(values, gameNameMapper) {
        return values.reduce((map, value) => {
            const gameName = gameNameMapper(value);
            const gameNameStripped = gameName
                // HTGD SMBD
                .replace(/ ?\(Track [0-9]+\)/i, '')
                // Redump
                .replace(/ ?\(Dis[ck] [0-9]+\)/i, '')
                // TOSEC
                .replace(/ ?\(Dis[ck] [0-9]+ of [0-9]+\)/i, '');
            if (map.has(gameNameStripped)) {
                map.get(gameNameStripped)?.push(value);
            }
            else {
                map.set(gameNameStripped, [value]);
            }
            return map;
        }, new Map());
    },
};