import { cli, Strategy } from '@jackwener/opencli/registry';
import { CliError } from '@jackwener/opencli/errors';
// Apple Marketing Tools RSS API — public, no key required
const CHARTS_URL = 'https://rss.marketingtools.apple.com/api/v2';
const CHARTS_TIMEOUT_MS = 15_000;
cli({
    site: 'apple-podcasts',
    name: 'top',
    access: 'read',
    description: 'Top podcasts chart on Apple Podcasts',
    strategy: Strategy.PUBLIC,
    browser: false,
    args: [
        { name: 'limit', type: 'int', default: 20, help: 'Number of podcasts (max 100)' },
        { name: 'country', default: 'us', help: 'Country code (e.g. us, cn, gb, jp)' },
    ],
    columns: ['rank', 'title', 'author', 'id'],
    func: async (args) => {
        const limit = Math.max(1, Math.min(Number(args.limit), 100));
        const country = String(args.country || 'us').trim().toLowerCase();
        const url = `${CHARTS_URL}/${country}/podcasts/top/${limit}/podcasts.json`;
        let resp;
        try {
            resp = await fetch(url, {
                signal: AbortSignal.timeout(CHARTS_TIMEOUT_MS),
            });
        }
        catch (error) {
            const reason = error?.cause?.code ?? error?.message ?? 'unknown network error';
            throw new CliError('FETCH_ERROR', `Unable to reach Apple Podcasts charts for ${country.toUpperCase()}`, `Apple charts may be temporarily unavailable (${reason}). Try again later.`);
        }
        if (!resp.ok)
            throw new CliError('FETCH_ERROR', `Charts API HTTP ${resp.status}`, `Check country code: ${country}`);
        const data = await resp.json();
        const results = data?.feed?.results;
        if (!results?.length)
            throw new CliError('NOT_FOUND', 'No chart data found', `Try a different country code`);
        return results.map((p, i) => ({
            rank: i + 1,
            title: p.name,
            author: p.artistName,
            id: p.id,
        }));
    },
});
