import * as assert from "assert";
import * as vscode from "vscode";
import { activateApi, settleUntil } from "./helpers";

// Task 6 (D19/D10/D8, PUC-8): the comments-first ask + comment→reply→offer→
// proposal loop, with a stubbed reply turn (no real @cline/sdk call). Runs on
// an untitled buffer (F8 routes it to the global sidecar) so this suite has no
// workspace-folder dependency.
suite("comment → reply → offer → proposal (PUC-8, D10/D19)", () => {
  test("reply on a coedited doc summons a machine reply + offer; accept lands pending proposals", async () => {
    const api = await activateApi();
    const doc = await vscode.workspace.openTextDocument({
      language: "markdown",
      content: "# T\n\nThe quick brown fox jumps over the lazy dog paragraph.\n",
    });
    const ed = await vscode.window.showTextDocument(doc);
    await vscode.commands.executeCommand("cowriting.coeditDocument");
    api.threadController.setTurnRunnerForTest(async () => ({
      replacement: "I would tighten this sentence.",
      model: "stub",
      sessionId: "s1",
    }));
    api.editFlow.setEditTurnForTest(async () => ({
      replacement: "The quick fox jumps the lazy dog.",
      model: "stub",
      sessionId: "s1",
    }));
    ed.selection = new vscode.Selection(2, 0, 2, 20);
    const threadId = (await api.threadController.createThreadOnSelection("tighten this"))!;
    // reply-loop fires on the human message; wait for the machine message to persist
    await settleUntil(() => {
      const t = api.sidecarRouter.load(api.proposalController.keyFor(doc))?.threads.find((x) => x.id === threadId);
      return (t?.messages.length ?? 0) >= 2 && t!.messages[1].author.kind === "agent";
    }, 10000);
    const ids = await api.threadController.makeThreadEdit(threadId, api.proposalController.keyFor(doc));
    assert.ok(ids.length >= 1);
    assert.ok(api.proposalController.listProposals(doc).length >= 1); // pending, INV-5
  });

  test("a comment on a NON-coedited doc summons nothing (INV-10)", async () => {
    const api = await activateApi();
    const doc = await vscode.workspace.openTextDocument({ language: "markdown", content: "plain\n" });
    await vscode.window.showTextDocument(doc);
    const id = await api.threadController.createThreadOnSelection("hello");
    assert.strictEqual(id, undefined); // gate refuses thread creation entirely
  });
});