// Unit tests for the resolver's pure logic (run with `node --test`). Zero-dep.
import { test } from "node:test";
import assert from "node:assert/strict";
import { norm, bandcampSearch, spotifySearch, pickArtist, spotifyResult, searchResult } from "./lib.js";

test("norm lowercases, trims, NFKC-normalizes", () => {
  assert.equal(norm("  Cerebral Bore "), "cerebral bore");
  assert.equal(norm("DEVOURMENT"), "devourment");
});

test("pickArtist matches case-insensitively, rejects non-matches", () => {
  const items = [{ name: "Cattle Decapitation" }, { name: "Cerebral Bore" }];
  assert.equal(pickArtist("cerebral bore", items)?.name, "Cerebral Bore");
  assert.equal(pickArtist("CATTLE DECAPITATION", items)?.name, "Cattle Decapitation");
  assert.equal(pickArtist("Notarealband", items), null);
});

test("pickArtist enforces minScore when given (MusicBrainz path)", () => {
  const items = [{ name: "Devourment", score: 100 }, { name: "Devourment", score: 50 }];
  assert.equal(pickArtist("Devourment", items, { minScore: 90 })?.score, 100);
  assert.equal(pickArtist("Devourment", [{ name: "Devourment", score: 50 }], { minScore: 90 }), null);
});

test("pickArtist tolerates empty / garbage input", () => {
  assert.equal(pickArtist("x", null), null);
  assert.equal(pickArtist("x", []), null);
  assert.equal(pickArtist("x", [null, { name: "y" }]), null);
});

test("spotifyResult prefers the direct url, falls back to search", () => {
  const direct = spotifyResult({
    name: "Devourment",
    external_urls: { spotify: "https://open.spotify.com/artist/abc" },
  });
  assert.equal(direct.spotify, "https://open.spotify.com/artist/abc");
  assert.match(direct.bandcamp, /^https:\/\/bandcamp\.com\/search\?q=Devourment/);

  const noUrl = spotifyResult({ name: "Devourment" });
  assert.equal(noUrl.spotify, "https://open.spotify.com/search/Devourment");
});

test("searchResult builds spotify + bandcamp search urls", () => {
  const r = searchResult({ name: "Cerebral Bore" });
  assert.equal(r.spotify, "https://open.spotify.com/search/Cerebral%20Bore");
  assert.equal(r.bandcamp, "https://bandcamp.com/search?q=Cerebral%20Bore&item_type=b");
});

test("link builders url-encode", () => {
  assert.equal(spotifySearch("A B"), "https://open.spotify.com/search/A%20B");
  assert.ok(bandcampSearch("A&B").includes("A%26B"));
});