/**
 * Library suggestions on the Overview: one button adds the Library item
 * through the normal write API, Dismiss hides it. The suggestion list is
 * seeded the way the Suwayomi job leaves it in the sync cache.
 */
import type { AddressInfo } from "node:net";
import type { Server } from "node:http";
import { afterAll, beforeAll, describe, expect, it } from "vitest";
import { parseTokens } from "../../content/src/config.ts";
import { createHttpServer } from "../../content/src/http.ts";
import { SUGGESTIONS_KEY } from "../../content/src/sync/jobs/reader.ts";
import { rig, type Rig } from "../../content/test/helpers.ts";
import { ContentApi } from "../src/client.ts";
import { createAdminServer } from "../src/server.ts";

const ADMIN = "s".repeat(24);
let r: Rig;
let content: Server;
let admin: Server;
let base: string;

const listen = async (s: Server) => {
  await new Promise<void>((ok) => s.listen(0, "127.0.0.1", ok));
  return `http://127.0.0.1:${(s.address() as AddressInfo).port}`;
};
const page = (path: string) => fetch(`${base}${path}`).then((res) => res.text());
const flash = (res: Response) => new URL(res.headers.get("location") ?? "/", "http://admin").searchParams;
const post = (path: string, form: Record<string, string>) =>
  fetch(`${base}${path}`, {
    method: "POST",
    redirect: "manual",
    headers: { "content-type": "application/x-www-form-urlencoded", "sec-fetch-site": "same-origin" },
    body: new URLSearchParams(form).toString(),
  });

beforeAll(async () => {
  r = rig();
  r.service.scan();
  r.store.syncCache.set(
    "suwayomi",
    SUGGESTIONS_KEY,
    {
      items: [
        { anilistId: 100004, title: "New Sample Series", medium: "manhwa" },
        { anilistId: 100006, title: "Another <Sample>", medium: "manga" },
      ],
    },
    "2026-10-11T12:00:00Z",
  );
  content = createHttpServer(r.service, { tokens: parseTokens(`admin:${ADMIN}`) });
  admin = createAdminServer(new ContentApi(await listen(content), ADMIN));
  base = await listen(admin);
});
afterAll(() => {
  admin.close();
  content.close();
  r.done();
});

describe("Library suggestions", () => {
  it("show on the Overview, escaped", async () => {
    const html = await page("/");
    expect(html).toContain("Library suggestions");
    expect(html).toContain("New Sample Series");
    expect(html).toContain("Another &lt;Sample&gt;");
    expect(html).toContain('value="anilist-100004"');
  });

  it("add creates the Library item through the write API, and the suggestion leaves", async () => {
    const res = await post("/suggestions/add", { key: "anilist-100004" });
    expect(res.status).toBe(303);
    expect(flash(res).get("msg")).toBe("Added New Sample Series to the Library as Now.");
    const note = r.store.list({ type: "library-item" }).find((n) => n.data.anilistId === 100004)!;
    expect(note.data).toMatchObject({ title: "New Sample Series", medium: "manhwa", state: "now", publish: true, updatedBy: "admin" });
    expect(r.vault.exists(note.path)).toBe(true);
    expect(await page("/")).not.toContain("New Sample Series");
  });

  it("dismiss hides it for good; the panel goes when nothing is left", async () => {
    expect((await post("/suggestions/dismiss", { key: "anilist-100006" })).status).toBe(303);
    const html = await page("/");
    expect(html).not.toContain("Library suggestions");
    // A gone suggestion cannot be added.
    const again = await post("/suggestions/add", { key: "anilist-100006" });
    expect(flash(again).get("err")).toContain("That suggestion is gone");
  });
});