electric-cherry/tests/unit/rcon.test.ts

import { describe, expect, it } from 'vitest';
import {
    parseInfoLine,
    parsePlayerCount,
    parsePlayerRoster,
    formatRawReply
} from '../../src/lib/server/integrations/rcon.js';

describe('parsePlayerCount', () => {
    it('counts rows after --- --- separator (status dialect)', () => {
        const body = [
            'print',
            'map: mp_kino',
            'num score ping guid                             name',
            '--- ----- ---- --------                         ----',
            '  0    12   45 abc123def456                     joe',
            '  1     0   72 xyz789abc123                     jill',
            '  2   999   30 111222333444                     kade'
        ].join('\n');
        expect(parsePlayerCount(body)).toBe(3);
    });

    it('returns 0 when the scoreboard has no rows', () => {
        const body = [
            'print',
            'map: mp_ascension',
            'num score ping guid                             name',
            '--- ----- ---- --------                         ----',
            ''
        ].join('\n');
        expect(parsePlayerCount(body)).toBe(0);
    });

    it('counts non-blank lines after the info line (statusResponse dialect)', () => {
        const body = [
            'statusResponse',
            '\\mapname\\mp_kino\\g_gametype\\zom\\sv_maxclients\\4',
            '10 45 "joe"',
            '0 72 "jill"'
        ].join('\n');
        expect(parsePlayerCount(body)).toBe(2);
    });

    it('returns null on malformed payloads with no separator or info line', () => {
        expect(parsePlayerCount('nonsense body\nno structure here')).toBeNull();
    });
});

describe('parseInfoLine', () => {
    it('splits \\key\\value pairs from an info string', () => {
        const body = [
            'statusResponse',
            '\\mapname\\mp_kino\\g_gametype\\zom\\sv_maxclients\\4'
        ].join('\n');
        const info = parseInfoLine(body);
        expect(info.mapname).toBe('mp_kino');
        expect(info.g_gametype).toBe('zom');
        expect(info.sv_maxclients).toBe('4');
    });

    it('returns empty object when no info line is present', () => {
        expect(parseInfoLine('nothing here')).toEqual({});
    });
});

describe('parsePlayerRoster', () => {
    it('extracts num/score/ping/guid/name from print dialect', () => {
        const body = [
            'print',
            'map: mp_kino',
            'num score ping guid                             name',
            '--- ----- ---- --------                         ----',
            '  0    12   45 aaaaaaaabbbbbbbbccccccccdddddddd joe',
            '  1     0   72 11112222333344445555666677778888 jill h.',
            '  2   999  128 abcdef0123456789abcdef0123456789 Toaster'
        ].join('\n');
        const roster = parsePlayerRoster(body);
        expect(roster).toHaveLength(3);
        expect(roster[0]).toEqual({
            num: 0,
            score: 12,
            ping: 45,
            guid: 'aaaaaaaabbbbbbbbccccccccdddddddd',
            name: 'joe'
        });
        // Names with spaces stay intact
        expect(roster[1].name).toBe('jill h.');
        expect(roster[2].ping).toBe(128);
    });

    it('extracts score/ping/quoted-name from statusResponse dialect', () => {
        const body = [
            'statusResponse',
            '\\mapname\\mp_kino\\g_gametype\\zclassic',
            '10 45 "joe"',
            '0 72 "jill h."'
        ].join('\n');
        const roster = parsePlayerRoster(body);
        expect(roster).toHaveLength(2);
        expect(roster[0]).toEqual({
            num: null,
            score: 10,
            ping: 45,
            guid: null,
            name: 'joe'
        });
        expect(roster[1].name).toBe('jill h.');
    });

    it('returns empty array when no rows are present', () => {
        const empty = [
            'print',
            'map: mp_ascension',
            'num score ping guid                             name',
            '--- ----- ---- --------                         ----'
        ].join('\n');
        expect(parsePlayerRoster(empty)).toEqual([]);
        expect(parsePlayerRoster('nonsense')).toEqual([]);
    });
});

describe('formatRawReply', () => {
    it('renders a small buffer as hex + printable ASCII with an offset', () => {
        const buf = Buffer.from([0xff, 0xff, 0xff, 0xff, 0x70, 0x72, 0x69, 0x6e, 0x74, 0x0a]);
        const out = formatRawReply(buf);
        expect(out).toContain('0000');
        expect(out).toContain('ff ff ff ff 70 72 69 6e 74 0a');
        // Non-printable prefix bytes render as `.`; the printable tail spells "print".
        expect(out).toContain('....print.');
    });

    it('splits into 16-byte rows and truncates past the limit', () => {
        const buf = Buffer.alloc(600, 0x41); // "A" repeated
        const out = formatRawReply(buf);
        const lines = out.split('\n');
        expect(lines.length).toBeGreaterThan(1);
        expect(lines[lines.length - 1]).toMatch(/more bytes/);
    });
});