// BidaAngMamamayan source registry — the crawler's supply line.
//
// This is a TRIBUTE site for Sen. BAM Aquino, so every feed is scoped to him:
//   1. BAM_QUERIES — keyword news searches (Bing News RSS, the same aggregator
//      forthena learned to love 2026-08-31: it hands us the publisher's own URL
//      inside the apiclick wrapper, which the reader pane needs).
//   2. PH_NATIVE   — general PH news wires, kept only as an ASSOCIATED pool
//      fallback: when a tick finds zero named-BAM stories, a couple of his
//      senate colleagues' / committee's coverage still belongs on the site.
//
// Freshness: qft=interval="8" = last month. Bing's 7-day window only ever held
// 12 unique stories for "Bam Aquino" (measured 2026-09-15) — a senator's
// mention volume is low, so the crawl window is a month and the relevance
// gate (lib/crawl.js) does the actual filtering. The 48h crawl maxAge from
// forthena does NOT apply here: a named-BAM story from last Thursday is still
// front-page material this weekend.
//
// Bing quirks (all verified live on the agent host):
//   * `OR` in queries is nil — single phrases only.
//   * setlang=en-PH&cc=PH biases toward PH coverage.
//   * A quoted exact phrase ("Bam Aquino") returns FEWER results than the
//     unquoted phrase — Bing drops results whose snippet doesn't contain the
//     exact string. Keep queries unquoted; the gate handles relevance.

// ── BAM queries ──────────────────────────────────────────────────────────
// Each phrase was measured through the live Bing news RSS on 2026-09-15.
// "Bam Aquino" alone is the workhorse (12 items/week, the rest overlap it).
export const BAM_QUERIES = [
  { query: "Bam Aquino", name: "BAM Wire", category: "bam" },
  { query: "Sen. Bam Aquino", name: "Senate Desk", category: "politics" },
  { query: "Bam Aquino education", name: "Education Desk", category: "education" },
  { query: "Bam Aquino college students scholarship", name: "Campus Desk", category: "education" },
  { query: "Bam Aquino power electricity", name: "Energy Desk", category: "energy" },
  { query: "Bam Aquino gaming esports", name: "Gamer Desk", category: "gaming" },
  { query: "Bam Aquino bill Senate", name: "Legislative Desk", category: "politics" },
];

// ── Associated pool (fallback only) ──────────────────────────────────────
// General PH wires. The crawler runs these ONLY when the BAM queries produced
// zero named stories this tick (verified: that happens on quiet days). Their
// items pass through the same gate, so only genuine senate/BAM-adjacent copy
// ever prints from here.
export const PH_NATIVE = [
  { key: "pna", name: "Philippine News Agency", category: "ph", feeds: ["https://www.pna.gov.ph/feed/"] },
  { key: "inqnews", name: "Inquirer News", category: "ph", feeds: ["https://newsinfo.inquirer.net/feed"] },
];

// ── Bing News RSS ────────────────────────────────────────────────────────
const BING = "https://www.bing.com/news/search?q=";
const BING_PARAMS = "&format=RSS&setlang=en-PH&cc=PH&qft=interval%3d%228%22";

export function queryFeed(q) {
  return `${BING}${encodeURIComponent(String(q).slice(0, 120))}${BING_PARAMS}`;
}

// Bing wraps item links in apiclick.aspx?...&url=<publisher url>. Returns the
// publisher's own URL when the wrapper carries one, else the original.
export function unwrapFeedLink(link) {
  let l = String(link || "").trim();
  if (!l) return l;
  l = l.replace(/&amp;/g, "&").replace(/&#38;/g, "&");
  if (/bing\.com\/news\/apiclick/i.test(l)) {
    const m = /[?&]url=([^&]+)/.exec(l);
    if (m) {
      try {
        const real = decodeURIComponent(m[1]);
        if (/^https?:\/\//i.test(real)) return real;
      } catch { /* leave the wrapper */ }
    }
  }
  if (/^https?:\/\/(www\.)?bing\.com\//i.test(l)) {
    const m = /[?&](?:url|u)=([^&]+)/.exec(l);
    if (m) { try { return decodeURIComponent(m[1]); } catch {} }
  }
  return l;
}

// Human publisher label: <News:Source> first, then the URL's host, then the
// "Headline - Publisher" tail.
const HOST_NAMES = {
  "pna.gov.ph": "PNA",
  "inquirer.net": "Inquirer",
  "newsinfo.inquirer.net": "Inquirer News",
  "gmanetwork.com": "GMA News",
  "abs-cbn.com": "ABS-CBN",
  "mb.com.ph": "Manila Bulletin",
  "rappler.com": "Rappler",
  "bworldonline.com": "BusinessWorld",
  "philstar.com": "Philstar",
  "sunstar.com.ph": "SunStar",
  "cnnphilippines.com": "CNN Philippines",
  "businessmirror.com": "BusinessMirror",
  "manilatimes.net": "Manila Times",
  "dailytribune.com.ph": "Daily Tribune",
  "newsline.ph": "NewsLine",
  "bombardyo.com": "Bombo Radyo",
};

export function publisherFromUrl(url) {
  try {
    const host = new URL(url).hostname.replace(/^www\./, "").toLowerCase();
    const reg = Object.keys(HOST_NAMES).find((h) => host === h || host.endsWith("." + h));
    if (reg) return HOST_NAMES[reg];
    const parts = host.split(".");
    return parts.length > 2 ? parts[parts.length - 3] : parts[0];
  } catch {
    return null;
  }
}

export function publisherFrom(title, fallback) {
  const t = String(title || "");
  const i = t.lastIndexOf(" - ");
  if (i > 24) return t.slice(i + 3).trim().slice(0, 40);
  return fallback || "Wire";
}

// Aggregator titles sometimes still carry the " - Publisher" tail.
export function stripPublisherSuffix(title) {
  const t = String(title || "");
  const i = t.lastIndexOf(" - ");
  if (i > 24) return t.slice(0, i).trim();
  return t.trim();
}