import { readFileSync, readdirSync } from "node:fs";
import { describe, expect, it } from "vitest";
import { allTemplates, checkNote, checkVault, notePath, slugify, wikilinkTarget, writeNote } from "../src/index.ts";

describe("names", () => {
  it("slugs titles", () => {
    expect(slugify("Pokémon TCG")).toBe("pokemon-tcg");
    expect(slugify("The Queen's Gambit")).toBe("the-queens-gambit");
    expect(slugify("Dungeons & Dragons")).toBe("dungeons-and-dragons");
  });
  it("reads wikilinks with aliases and headings", () => {
    expect(wikilinkTarget("[[Galaxy dice|the galaxy set]]")).toBe("Galaxy dice");
    expect(wikilinkTarget("[[Resin#Tools]]")).toBe("Resin");
    expect(wikilinkTarget("Resin")).toBeNull();
  });
});

describe("checkNote", () => {
  const status = `---\ntype: status\ntitle: Throne of Glass\npublish: true\nkind: Reading\ndate: 2026-10-11\nsubject: [[Throne of Glass]]\n---\n`;

  it("accepts an unquoted wikilink, as a hand edit might write it", () => {
    const r = checkNote(status);
    expect(r.ok).toBe(true);
    if (r.ok) expect(r.data.subject).toBe("[[Throne of Glass]]");
  });

  it("names the field that is wrong", () => {
    const r = checkNote(status.replace("date: 2026-10-11", "date: last tuesday"));
    expect(r.ok).toBe(false);
    if (!r.ok) expect(r.problems.map((p) => p.field)).toContain("date");
  });

  it("rejects unknown types and broken YAML without throwing", () => {
    expect(checkNote("---\ntype: recipe\ntitle: x\n---\n").ok).toBe(false);
    expect(checkNote("---\ntitle: [unclosed\n---\n").ok).toBe(false);
  });

  it("defaults publish to false", () => {
    const r = checkNote("---\ntype: card-game\ntitle: Riftbound\nstance: Exploring\n---\n");
    expect(r.ok && r.data.publish).toBe(false);
  });

  it("requires a role on case studies", () => {
    const post = "---\ntype: post\ntitle: X\ndate: 2026-10-11\ntopic: Work and tech\npostType: case study\nsummary: Y\n---\n";
    expect(checkNote(post).ok).toBe(false);
    expect(checkNote(post.replace("summary: Y", "summary: Y\nrole: Lead")).ok).toBe(true);
  });
});

describe("writeNote", () => {
  it("round-trips through checkNote", () => {
    const data = { type: "deck", title: "Kynaios and Tiro", publish: true, game: "[[Magic: The Gathering]]", format: "Commander" };
    const r = checkNote(writeNote(data));
    expect(r.ok && r.data).toMatchObject(data);
  });
  it("refuses invalid data", () => {
    expect(() => writeNote({ type: "deck", title: "No game" })).toThrow(/game/);
  });
  it("places notes by type", () => {
    expect(notePath({ type: "library-item", title: "Re:Zero", medium: "light novel" })).toBe("Library/Light novels/Re Zero.md");
    expect(notePath({ type: "site-settings", title: "Site settings" })).toBe("_site.md");
  });
});

describe("checkVault", () => {
  const n = (path: string, type: string, data: Record<string, unknown>, body = "") => ({ path, type, data: { title: path, ...data }, body });
  it("finds duplicate names, duplicate slugs and dangling links", () => {
    const problems = checkVault([
      n("Shelf/Coup.md", "board-game", { slug: "coup" }),
      n("Library/Movies/Coup.md", "library-item", {}),
      n("Shelf/Other.md", "board-game", { slug: "coup" }),
      n("Posts/A.md", "post", { links: ["[[Missing]]"] }, "See [[Coup]] and ![[photo.jpg]]"),
    ], ["photo.jpg"]);
    const messages = problems.map((p) => p.message).join("\n");
    expect(messages).toMatch(/Same file name/);
    expect(messages).toMatch(/Slug "coup"/);
    expect(messages).toMatch(/\[\[Missing\]\]/);
    expect(messages).not.toMatch(/photo\.jpg/);
  });
});

describe("templates", () => {
  it("match the committed vault kit", () => {
    const dir = new URL("../../../vault-kit/24.01_PersonalWebsite/Site/_templates/", import.meta.url);
    const committed = Object.fromEntries(readdirSync(dir).map((f) => [f.replace(/\.md$/, ""), readFileSync(new URL(f, dir), "utf8")]));
    for (const t of allTemplates()) expect(committed[t.name], `Run npm run templates -w @gk/schema`).toBe(t.text);
    expect(Object.keys(committed).length).toBe(allTemplates().length);
  });
});