#!/usr/bin/env node
/**
 * dafont.js — ESM scraper/wrapper dafont.com (CLI + module)
 *
 * CLI:  node dafont.js search|new|top|category|author|font|url <args>
 * Module: import { search, getFont, getNewFonts, ... } from './dafont.js'
 */
import * as cheerio from 'cheerio';
import { fileURLToPath } from 'node:url';
import path from 'node:path';

const BASE = 'https://www.dafont.com';
const DL = 'https://dl.dafont.com';
const H = {
  'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/120.0.0.0 Safari/537.36',
  Accept: 'text/html',
  'Accept-Language': 'en-US,en;q=0.9',
};

const get = async (url) => {
  const r = await fetch(url, { headers: H });
  if (!r.ok) throw new Error(`HTTP ${r.status} → ${url}`);
  return r.text();
};

export const delay = (ms = 1200) => new Promise((r) => setTimeout(r, ms));

const num = (s) => {
  const m = String(s || '').match(/([\d,.]+)/);
  return m ? parseInt(m[1].replace(/[.,]/g, ''), 10) : null;
};

const abs = (u) => !u ? null : u.startsWith('//') ? 'https:' + u : u.startsWith('http') ? u : BASE + (u.startsWith('/') ? u : '/' + u);

const licenseOf = (t) =>
  /100%\s*Free/i.test(t) ? '100% Free'
  : /Free for personal use/i.test(t) ? 'Free for personal use'
  : /Public domain|GPL|OFL/i.test(t) ? 'Public domain / GPL / OFL'
  : /Donationware/i.test(t) ? 'Donationware' : null;

/** Parse list pages (new/top/category/author/search) */
function parseList(html) {
  const $ = cheerio.load(html);
  const out = [], seen = new Set();

  $('div.lv1left').each((_, el) => {
    const $l = $(el);
    // slug: dari link .font di dalam, atau dari preview sibling
    let slug = null;
    const $a = $l.find('a[href$=".font"]').first();
    if ($a.length) slug = ($a.attr('href') || '').replace(/^\//, '').replace(/\.font$/, '');
    if (!slug) {
      const $p = $l.nextAll('div.preview').first().find('a[href$=".font"]').first();
      if ($p.length) slug = ($p.attr('href') || '').replace(/^\//, '').replace(/\.font$/, '');
    }
    if (!slug || seen.has(slug)) return;
    seen.add(slug);

    // name: strong / highlight / link text
    const name =
      $l.find('a[href$=".font"] strong').text().trim() ||
      $l.find('span.highlight').text().trim() ||
      $a.text().trim() ||
      slug;

    const $auth = $l.find('a[href*=".d"]').first();
    const author = $auth.length ? $auth.text().trim() : null;
    const authorSlug = $auth.length ? ($auth.attr('href') || '').replace(/^\//, '') : null;

    const $r = $l.nextAll('div.lv1right').first();
    const $v = $l.nextAll('div.lv2right').first();
    const $d = $l.nextAll('div.dlbox').first();
    const $pr = $l.nextAll('div.preview').first();

    const cats = [];
    $r.find('a').each((__, a) => { const t = $(a).text().trim(); if (t && t !== 'help') cats.push(t); });

    const light = $v.find('span.light').text() || $v.text();
    const downloads = num(light);
    const y = light.match(/\(([\d,.]+)\s+yesterday\)/i);
    const downloadsYesterday = y ? num(y[1]) : null;
    const license = licenseOf($v.find('a.help').text() || $v.text());

    const dlHref = $d.find('a.dl').attr('href') || '';
    const downloadUrl = abs(dlHref) || `${DL}/dl/?f=${slug.replace(/-/g, '_')}`;

    let preview = null;
    const bg = ($pr.attr('style') || '').match(/url\((['"]?)([^)'"]+)\1\)/);
    if (bg) preview = abs(bg[2]);

    out.push({
      name, slug,
      url: `${BASE}/${slug}.font`,
      downloadUrl, preview,
      downloads, downloadsYesterday, license,
      author, authorSlug,
      categories: cats.length ? cats : null,
    });
  });
  return out;
}

export async function search(q, page = 1) {
  const qs = encodeURIComponent(q.trim());
  const url = `${BASE}/search.php?q=${qs}${page > 1 ? `&page=${page}` : ''}`;
  return parseList(await get(url));
}

export async function getNewFonts(page = 1) {
  return parseList(await get(page === 1 ? `${BASE}/new.php` : `${BASE}/new.php?page=${page}`));
}

export async function getTopFonts(page = 1, period = 'yesterday') {
  let url = `${BASE}/top.php`;
  if (period === 'alltime') url += '?period=2';
  if (page > 1) url += (url.includes('?') ? '&' : '?') + `page=${page}`;
  return parseList(await get(url));
}

export async function getCategoryFonts(catId, page = 1) {
  const url = `${BASE}/theme.php?cat=${catId}${page > 1 ? `&page=${page}` : ''}`;
  return parseList(await get(url));
}

export async function getAuthorFonts(authorSlug, page = 1) {
  const s = authorSlug.replace(/^\//, '');
  return parseList(await get(page === 1 ? `${BASE}/${s}` : `${BASE}/${s}?page=${page}`));
}

export async function getFont(slug) {
  const clean = slug.replace(/\.font$/, '').replace(/^\//, '');
  const url = `${BASE}/${clean}.font`;
  const $ = cheerio.load(await get(url));

  const name =
    $('div.lv1left a[href$=".font"] strong').first().text().trim() ||
    $('div.lv1left span.highlight').text().trim() ||
    clean;

  let author = null, authorSlug = null;
  $('div.lv1left a[href*=".d"]').each((_, el) => {
    const h = $(el).attr('href') || '';
    if (/login|register/i.test(h)) return;
    author = $(el).text().trim();
    authorSlug = h.replace(/^\//, '');
    return false;
  });

  const categories = [];
  $('div.lv1right a').each((_, el) => {
    const t = $(el).text().trim();
    const h = $(el).attr('href') || '';
    if (t && t !== 'help') categories.push({ name: t, url: abs(h) });
  });

  const light = $('div.lv2right span.light').text() || $('div.lv2right').text();
  const downloads = num(light);
  const y = light.match(/\(([\d,.]+)\s+yesterday\)/i);
  const downloadsYesterday = y ? num(y[1]) : null;
  const license = licenseOf($('div.lv2right a.help').text() || $('div.lv2right').text());

  const dlHref = $('div.dlbox a.dl').attr('href') || '';
  const downloadUrl = abs(dlHref) || `${DL}/dl/?f=${clean.replace(/-/g, '_')}`;

  const files = [];
  $('span.filename').each((_, el) => { const t = $(el).text().trim(); if (t) files.push(t); });
  if (!files.length) $('b').each((_, el) => { const t = $(el).text().trim(); if (/\.(ttf|otf|fon)$/i.test(t)) files.push(t); });

  let preview = null;
  const bg = ($('div.preview').attr('style') || '').match(/url\((['"]?)([^)'"]+)\1\)/);
  if (bg) preview = abs(bg[2]);

  const ill = $('img[src*="/img/illustration/"]').attr('src');
  const illustration = ill ? abs(ill) : null;

  let firstSeen = null;
  const fs = $('div.dfsmall').filter((_, el) => /First seen on DaFont/i.test($(el).text())).first().text();
  const fm = fs.match(/First seen on DaFont:\s*(.+)/i);
  if (fm) firstSeen = fm[1].trim();

  // note: ambil div setelah "Note of the author"
  let note = null;
  $('div').each((_, el) => {
    if (/Note of the author/i.test($(el).text()) && $(el).find('i b, b i').length) {
      const n = $(el).next('div').text().replace(/\s+/g, ' ').trim();
      if (n && n.length < 800 && !/Cookies|Privacy Policy/i.test(n)) note = n;
      return false;
    }
  });

  return {
    name, slug: clean, url, downloadUrl, preview, illustration,
    author, authorSlug, categories, downloads, downloadsYesterday,
    license, files: [...new Set(files)], firstSeen, note,
  };
}

export function getDownloadUrl(slug) {
  return `${DL}/dl/?f=${slug.replace(/\.font$/, '').replace(/^\//, '').replace(/-/g, '_')}`;
}

// ---------- CLI ----------
const isCLI = process.argv[1] && path.resolve(process.argv[1]) === fileURLToPath(import.meta.url);

if (isCLI) {
  const [, , cmd, ...args] = process.argv;
  const j = (d) => console.log(JSON.stringify(d, null, 2));
  const die = (m) => { console.error(m); process.exit(1); };

  (async () => {
    try {
      switch (cmd) {
        case 'search':
          if (!args[0]) die('Usage: node dafont.js search <query> [page]');
          j(await search(args[0], +args[1] || 1));
          break;
        case 'new':
          j(await getNewFonts(+args[0] || 1));
          break;
        case 'top':
          j(await getTopFonts(+args[0] || 1, args[1] === 'alltime' ? 'alltime' : 'yesterday'));
          break;
        case 'category':
        case 'cat':
          if (!args[0]) die('Usage: node dafont.js category <catId> [page]');
          j(await getCategoryFonts(args[0], +args[1] || 1));
          break;
        case 'author':
          if (!args[0]) die('Usage: node dafont.js author <authorSlug> [page]');
          j(await getAuthorFonts(args[0], +args[1] || 1));
          break;
        case 'font':
        case 'detail':
          if (!args[0]) die('Usage: node dafont.js font <slug>');
          j(await getFont(args[0]));
          break;
        case 'url':
          if (!args[0]) die('Usage: node dafont.js url <slug>');
          console.log(getDownloadUrl(args[0]));
          break;
        default:
          console.log(`
dafont.js — dafont.com scraper (CLI + module)

  search   <query> [page]
  new      [page]
  top      [page] [yesterday|alltime]
  category <catId> [page]
  author   <authorSlug> [page]
  font     <slug>
  url      <slug>

Contoh:
  node dafont.js search coolvetica
  node dafont.js new 1
  node dafont.js top 1 alltime
  node dafont.js font super-bouncer
`);
      }
    } catch (e) {
      console.error('Error:', e.message);
      process.exit(1);
    }
  })();
}