import assert from "node:assert/strict";
import { describe, it } from "node:test";
import {
  isWatcherMailboxAllowed,
  parseWatcherMailboxes,
} from "../src/config.js";

describe("parseWatcherMailboxes", () => {
  it("returns empty set for blank input", () => {
    assert.equal(parseWatcherMailboxes("").size, 0);
    assert.equal(parseWatcherMailboxes(null).size, 0);
    assert.equal(parseWatcherMailboxes("  ,  ").size, 0);
  });

  it("normalizes and splits emails", () => {
    const set = parseWatcherMailboxes(
      " Eleven16th@gmail.com , other@Example.COM ",
    );
    assert.deepEqual([...set].sort(), [
      "eleven16th@gmail.com",
      "other@example.com",
    ]);
  });
});

describe("isWatcherMailboxAllowed", () => {
  it("allows all when allowlist is empty", () => {
    const empty = new Set();
    assert.equal(isWatcherMailboxAllowed("anyone@x.com", empty), true);
    assert.equal(isWatcherMailboxAllowed(null, empty), true);
  });

  it("requires membership when allowlist is set", () => {
    const allow = parseWatcherMailboxes("eleven16th@gmail.com");
    assert.equal(
      isWatcherMailboxAllowed("eleven16th@gmail.com", allow),
      true,
    );
    assert.equal(
      isWatcherMailboxAllowed("Eleven16th@Gmail.com", allow),
      true,
    );
    assert.equal(isWatcherMailboxAllowed("other@gmail.com", allow), false);
    assert.equal(isWatcherMailboxAllowed(null, allow), false);
  });
});