import path from "node:path";
import { afterEach, describe, expect, it, vi } from "vitest";
import { createTestSession, type TestSession } from "../../../test/harness.js";

describe("bak pi-test-harness", () => {
	let session: TestSession | undefined;

	afterEach(() => {
		session?.dispose();
		session = undefined;
		vi.unstubAllEnvs();
		vi.unstubAllGlobals();
	});

	it("performs no remote work during session startup", async () => {
		vi.stubEnv("PI_BAK_S3_ENDPOINT", "https://example.invalid");
		vi.stubEnv("PI_BAK_S3_ACCESS_KEY_ID", "id");
		vi.stubEnv("PI_BAK_S3_SECRET_ACCESS_KEY", "secret");
		const fetch = vi.fn();
		vi.stubGlobal("fetch", fetch);
		const extensionPath = path.resolve(import.meta.dirname, "../index.ts");

		session = await createTestSession({ extensions: [extensionPath] });
		await new Promise((resolve) => setTimeout(resolve, 20));

		expect(fetch).not.toHaveBeenCalled();
	});

	it("loads through Pi and registers the bak command", async () => {
		const extensionPath = path.resolve(import.meta.dirname, "../index.ts");
		session = await createTestSession({ extensions: [extensionPath] });
		const extension = session.session.extensionRunner.extensions[0];
		const command = extension?.commands.get("bak");

		expect(session.session.extensionRunner.extensions).toHaveLength(1);
		expect(command).toBeDefined();
		expect(command?.getArgumentCompletions?.("res")).toEqual([
			{ value: "restore", label: "restore" },
		]);
	});
});