import { parseServerName, T5_ZOMBIE_MAPS, T6_ZOMBIE_MAPS, zombieMaps } from '../map-aliases.js';

export function gameTitle(game: string | null | undefined, compact = false): string {
    if (game?.toLowerCase() === 't5') return compact ? 'BO1' : 'Black Ops I';
    if (game?.toLowerCase() === 't6') return compact ? 'BO2' : 'Black Ops II';
    return game?.toUpperCase() || 'Unknown game';
}

export function mapTitle(map: string | null | undefined): string {
    const matches = [...T5_ZOMBIE_MAPS, ...T6_ZOMBIE_MAPS].filter(
        (entry) => entry.canonical === map?.toLowerCase()
    );
    // Engine identifiers alone cannot distinguish selections such as Town and TranZit.
    if (matches.length > 1) return `${map} (variant unknown)`;
    return matches[0]?.friendly ?? map ?? '—';
}

export function serverTitle(name: string): string {
    const parsed = parseServerName(name);
    if (
        !parsed ||
        !['t5', 't6'].includes(parsed.game.toLowerCase()) ||
        (parsed.gameMode !== null && parsed.gameMode !== 'zombie') ||
        !parsed.mapCanonical
    ) {
        return name;
    }
    const title =
        zombieMaps(parsed.game).find((entry) => entry.slug === parsed.mapSlug)?.friendly ??
        mapTitle(parsed.mapCanonical);
    return parsed.lobby === null ? title : `${title} · Lobby ${parsed.lobby}`;
}

export function serverIdentity(name: string): { map: string; lobby: number | null; game: string } {
    const parsed = parseServerName(name);
    if (
        !parsed ||
        !['t5', 't6'].includes(parsed.game.toLowerCase()) ||
        !parsed.mapCanonical ||
        (parsed.gameMode && parsed.gameMode !== 'zombie')
    )
        return { map: name, lobby: null, game: '' };
    return {
        map:
            zombieMaps(parsed.game).find((entry) => entry.slug === parsed.mapSlug)?.friendly ??
            mapTitle(parsed.mapCanonical),
        lobby: parsed.lobby,
        game: parsed.game === 't6' ? 'Black Ops II' : 'Black Ops I'
    };
}