import { describe, it, expect, vi, beforeEach } from "vitest";

vi.mock("../lib/config.js", () => ({
  getConfig: vi.fn(() => ({ apiUrl: "https://api.skills-hub.ai" })),
  saveConfig: vi.fn(),
}));

vi.mock("open", () => ({ default: vi.fn() }));

vi.mock("node:http", () => ({
  createServer: vi.fn(() => ({
    listen: vi.fn(),
    close: vi.fn(),
  })),
}));

import { loginCommand } from "./login.js";
import { saveConfig } from "../lib/config.js";

const mockSaveConfig = vi.mocked(saveConfig);

beforeEach(() => {
  vi.clearAllMocks();
  // Reset Commander's stored option values to prevent state leaking between tests
  loginCommand.setOptionValue("apiKey", undefined);
  loginCommand.setOptionValue("provider", undefined);
});

describe("login", () => {
  it("saves API key when --api-key provided", async () => {
    const log = vi.spyOn(console, "log").mockImplementation(() => {});
    await loginCommand.parseAsync(
      ["node", "login", "--api-key", "sk_test_123"],
      { from: "node" },
    );

    expect(mockSaveConfig).toHaveBeenCalledWith({ apiKey: "sk_test_123" });
    const output = log.mock.calls.map((c) => c[0]).join("\n");
    expect(output).toContain("API key saved");
    log.mockRestore();
  });

  it("starts browser OAuth flow when no --api-key", async () => {
    const { createServer } = await import("node:http");

    const log = vi.spyOn(console, "log").mockImplementation(() => {});
    // Mock listen is a no-op so the action completes after calling createServer + listen
    await loginCommand.parseAsync(["node", "login"], { from: "node" });

    expect(vi.mocked(createServer)).toHaveBeenCalled();
    const output = log.mock.calls.map((c) => c[0]).join("\n");
    expect(output).toContain("Opening GitHub login");
    log.mockRestore();
  });

  it("starts Google OAuth flow when --provider google", async () => {
    const { createServer } = await import("node:http");

    const log = vi.spyOn(console, "log").mockImplementation(() => {});
    await loginCommand.parseAsync(["node", "login", "--provider", "google"], {
      from: "node",
    });

    expect(vi.mocked(createServer)).toHaveBeenCalled();
    const output = log.mock.calls.map((c) => c[0]).join("\n");
    expect(output).toContain("Opening Google login");
    log.mockRestore();
  });
});