igir/dist/src/modules/dats/datCombiner.js

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

import moment from 'moment';
import Package from '../../globals/package.js';
import ArrayPoly from '../../polyfill/arrayPoly.js';
import Header from '../../types/dats/logiqx/header.js';
import LogiqxDAT from '../../types/dats/logiqx/logiqxDat.js';
import Module from '../module.js';
/**
 * Combine every {@link DAT} into a single {@link DAT}.
 */
export default class DATCombiner extends Module {
    constructor(progressBar) {
        super(progressBar, DATCombiner.name);
    }
    /**
     * Combine the DATs.
     */
    combine(dats) {
        this.progressBar.logTrace(`combining ${dats.length} DAT${dats.length === 1 ? '' : 's'}`);
        const newDat = new LogiqxDAT({
            header: DATCombiner.generateHeader(dats),
            games: dats
                .flatMap((dat) => dat.getGames())
                .filter(ArrayPoly.filterUniqueMapped((game) => game.hashCode())),
        });
        this.progressBar.logTrace(`done combining ${dats.length} DAT${dats.length === 1 ? '' : 's'}`);
        return newDat;
    }
    static generateHeader(dats) {
        const datName = 'igir combined';
        const date = moment().format('YYYYMMDD-HHmmss');
        return new Header({
            name: datName,
            description: datName,
            version: date,
            date,
            author: Package.NAME,
            url: Package.HOMEPAGE,
            comment: [
                `Combined DAT generated by ${Package.NAME} v${Package.VERSION}`,
                ...dats.map((dat) => dat.getName()),
            ].join('\n'),
        });
    }
}