import assert from "node:assert/strict";
import { test } from "node:test";
import { createServer } from "node:http";

// **A pull request opened after its push is still checked** (novox/hq issue 347). The announcer read only the
// repositories whose update time moved since its last pass, less a minute's margin; opening, reopening or
// retargeting a pull request does not move a repository's update time, so a pull request opened more than a
// minute or so after its push was never announced, never checked, and nothing said so.

const repo = (full: string, updated: string) => {
  const [owner, name] = full.split("/");
  return { full_name: full, owner, name, private: false, html_url: "", updated_at: updated };
};

test("a pull request opened after the margin is looked at, by its own update time", async () => {
  const { reposToLook } = await import("../pulls.ts");
  const pushed = "2026-10-09T10:00:00Z"; // the branch pushed: the repository's update time
  // The pull request opened two minutes later; the last pass was at 10:02:30, so the floor is 10:01:30.
  const floor = "2026-10-09T10:01:30Z";
  const repos = [repo("novox/mesh-sdk", pushed), repo("novox/hq", "2026-10-09T09:00:00Z")];
  const opened = [{ owner: "novox", name: "mesh-sdk", updated_at: "2026-10-09T10:02:00Z" }];
  assert.deepEqual(reposToLook(repos, floor, opened, false).map((r) => r.full_name), ["novox/mesh-sdk"],
    "the repository of a pull request updated since the floor, though the repository itself did not move");
  assert.deepEqual(reposToLook(repos, floor, [], false).map((r) => r.full_name), [],
    "without the pull request's own time nothing is looked at — the fault");
  assert.deepEqual(reposToLook(repos, floor, [], true).map((r) => r.full_name).sort(), ["novox/hq", "novox/mesh-sdk"],
    "a sweep looks at every repository");
  assert.deepEqual(reposToLook(repos, "", [], false).length, 2, "the first pass looks at every repository");
});

test("an open pull request on a protected branch with no merge check for ten minutes is said, and nothing else", async () => {
  const { unannounced } = await import("../pulls.ts");
  const now = Date.parse("2026-10-09T10:30:00Z");
  const pull = {
    key: "novox/mesh-sdk#14", base: "main", head_sha: "bfe82315f42c", updated_at: "2026-10-09T10:12:00Z",
    statuses: [] as string[], required: ["mesh/merge-gate", "mesh/repo-check"],
  };
  assert.deepEqual(unannounced([pull], now).map((p) => p.key), ["novox/mesh-sdk#14"]);
  assert.deepEqual(unannounced([{ ...pull, statuses: ["mesh/merge-gate"] }], now), [], "a head with a merge check");
  assert.deepEqual(unannounced([{ ...pull, required: [] }], now), [], "a branch that requires no merge check");
  assert.deepEqual(unannounced([{ ...pull, updated_at: "2026-10-09T10:25:00Z" }], now), [], "a head five minutes old");
});

test("a pull request or issue number that is not one is refused before the forge is asked", async () => {
  const { GiteaClient } = await import("../client.ts");
  let asked = 0;
  const server = createServer((_req, res) => {
    asked++;
    res.end("{}");
  });
  await new Promise<void>((r) => server.listen(0, r));
  const client = new GiteaClient(`http://127.0.0.1:${(server.address() as any).port}`, "t");
  try {
    await assert.rejects(client.getPullRequest("novox", "hq", Number(undefined)), /whole number/);
    await assert.rejects(client.addComment("novox", "hq", 0, "x"), /whole number/);
    await assert.rejects(client.listPullFiles("novox", "hq", 1.5), /whole number/);
    assert.equal(asked, 0, "the forge was asked about pulls/NaN");
  } finally {
    server.close();
  }
});