/* ═══════════════════════════════════════════════════════════════
   PEOPLE ROUTES  —  read-only, mounted under /api

     GET /teams/:id/people        current public members of a team
     GET /people?ids=a,b,c        named people, any order

   The team route reads v_org_leadership, which already decides who
   counts as current and public — affiliation still open, marked
   public, person published. Restating those conditions here is how
   they drift apart.

   That view is affiliation-driven, so it can't serve the lookup
   route: a person with no affiliations would vanish, and one with
   several would appear more than once. The lookup reads people
   directly and returns no title, because a bare slug names no seat.

   Photos are filenames, as everywhere else in this API. The
   component decides where they live.
   ═══════════════════════════════════════════════════════════════ */

import { Hono } from "hono";

import { asBool } from "../shape.js";

const people = new Hono();

const CACHE = "public, max-age=60, stale-while-revalidate=300";

const json = (c, body) => c.json(body, 200, { "Cache-Control": CACHE });

const marks = (n) => Array(n).fill("?").join(",");

/* How many slugs one request may name. Keeps the URL sane. */
const MAX_IDS = 50;

function shapePerson(row) {
  return {
    id: row.id ?? row.person_id,
    name: row.display_name,
    // Only the team route knows a seat; the lookup route doesn't.
    title: row.title ?? null,
    tagline: row.tagline,
    pronouns: row.pronouns,
    photo: row.photo,
    location_label: row.location_label,
    public_email: row.public_email,
    org: row.primary_org_id
      ? { id: row.primary_org_id, name: row.primary_org_name }
      : null,
    bio: splitParagraphs(row.bio),
    role: row.role ?? null,
    is_owner: row.is_owner === undefined ? false : asBool(row.is_owner),
  };
}

/* people.bio is one run of prose with blank lines between
   paragraphs — unrelated to shape.js's paragraphs(), which turns
   content_block rows into text. */
function splitParagraphs(text) {
  if (!text) return null;
  const parts = text
    .split(/\n\s*\n/)
    .map((part) => part.trim())
    .filter(Boolean);
  return parts.length ? parts : null;
}

/* ── One team's people ─────────────────────────────────────── */

people.get("/teams/:id/people", (c) => {
  const db = c.get("db");
  const id = c.req.param("id");

  const team = db
    .prepare(
      `SELECT id, org_id, name, tagline, color, logo
         FROM teams
        WHERE id = ? AND is_published = 1`,
    )
    .get(id);

  if (!team) return c.json({ error: "No such team" }, 404);

  // The view orders by org first, which isn't what a single team
  // wants, so the order is restated here.
  const rows = db
    .prepare(
      `SELECT * FROM v_org_leadership
        WHERE team_id = ?
        ORDER BY is_owner DESC,
                 sort_order,
                 COALESCE(sort_name, display_name),
                 display_name`,
    )
    .all(id);

  return json(c, { team, people: rows.map(shapePerson) });
});

/* ── People by id ──────────────────────────────────────────────
     For hand-picked lists in a section. Order is the caller's, so
     there's no ORDER BY here.
   ───────────────────────────────────────────────────────────── */

people.get("/people", (c) => {
  const db = c.get("db");

  const ids = [
    ...new Set(
      (c.req.query("ids") ?? "")
        .split(",")
        .map((part) => part.trim())
        .filter(Boolean),
    ),
  ].slice(0, MAX_IDS);

  if (ids.length === 0) return json(c, { people: [] });

  const rows = db
    .prepare(
      `SELECT p.id,
              p.display_name,
              p.pronouns,
              p.photo,
              p.tagline,
              p.location_label,
              p.public_email,
              p.bio,
              o.id   AS primary_org_id,
              o.name AS primary_org_name
         FROM people p
         LEFT JOIN organizations o ON o.id = p.primary_org_id
        WHERE p.id IN (${marks(ids.length)})
          AND p.is_published = 1`,
    )
    .all(...ids);

  return json(c, { people: rows.map(shapePerson) });
});

export default people;