import { describe, expect, it, vi } from "vitest";
import { resolveCodexAccessTokenExpiry } from "./openai-codex-auth-identity.js";
import { loginOpenAICodexDeviceCode } from "./openai-codex-device-code.js";

function createJwt(payload: Record<string, unknown>): string {
  const header = Buffer.from(JSON.stringify({ alg: "none", typ: "JWT" })).toString("base64url");
  const body = Buffer.from(JSON.stringify(payload)).toString("base64url");
  return `${header}.${body}.signature`;
}

function createJsonResponse(body: unknown, init?: { status?: number }) {
  return new Response(JSON.stringify(body), {
    status: init?.status ?? 200,
    headers: {
      "Content-Type": "application/json",
    },
  });
}

describe("loginOpenAICodexDeviceCode", () => {
  it("requests a device code, polls for authorization, and exchanges OAuth tokens", async () => {
    vi.useFakeTimers();
    vi.stubEnv("OPENCLAW_VERSION", "2026.3.22");
    try {
      const fetchMock = vi
        .fn()
        .mockResolvedValueOnce(
          createJsonResponse({
            device_auth_id: "device-auth-123",
            user_code: "CODE-12345",
            interval: "0",
          }),
        )
        .mockResolvedValueOnce(new Response(null, { status: 404 }))
        .mockResolvedValueOnce(
          createJsonResponse({
            authorization_code: "authorization-code-123",
            code_challenge: "ignored",
            code_verifier: "code-verifier-123",
          }),
        )
        .mockResolvedValueOnce(
          createJsonResponse({
            access_token: createJwt({
              exp: Math.floor(Date.now() / 1000) + 600,
              "https://api.openai.com/auth": {
                chatgpt_account_id: "acct_123",
              },
              "https://api.openai.com/profile": {
                email: "codex@example.com",
              },
            }),
            refresh_token: "refresh-token-123",
            id_token: createJwt({
              "https://api.openai.com/auth": {
                chatgpt_account_id: "acct_123",
              },
            }),
            expires_in: 600,
          }),
        );
      const onVerification = vi.fn(async () => {});
      const onProgress = vi.fn();

      const credentialsPromise = loginOpenAICodexDeviceCode({
        fetchFn: fetchMock as typeof fetch,
        onVerification,
        onProgress,
      });
      await vi.advanceTimersByTimeAsync(0);
      expect(fetchMock).toHaveBeenCalledTimes(2);
      await vi.advanceTimersByTimeAsync(4_999);
      expect(fetchMock).toHaveBeenCalledTimes(2);
      await vi.advanceTimersByTimeAsync(1);
      const credentials = await credentialsPromise;

      expect(fetchMock).toHaveBeenNthCalledWith(
        1,
        "https://auth.openai.com/api/accounts/deviceauth/usercode",
        expect.objectContaining({
          method: "POST",
          headers: {
            "Content-Type": "application/json",
            originator: "openclaw",
            version: "2026.3.22",
            "User-Agent": "openclaw/2026.3.22",
          },
        }),
      );
      expect(fetchMock).toHaveBeenNthCalledWith(
        2,
        "https://auth.openai.com/api/accounts/deviceauth/token",
        expect.objectContaining({
          method: "POST",
          headers: {
            "Content-Type": "application/json",
            originator: "openclaw",
            version: "2026.3.22",
            "User-Agent": "openclaw/2026.3.22",
          },
        }),
      );
      expect(fetchMock).toHaveBeenNthCalledWith(
        4,
        "https://auth.openai.com/oauth/token",
        expect.objectContaining({
          method: "POST",
          headers: {
            "Content-Type": "application/x-www-form-urlencoded",
            originator: "openclaw",
            version: "2026.3.22",
            "User-Agent": "openclaw/2026.3.22",
          },
        }),
      );
      expect(onVerification).toHaveBeenCalledWith({
        verificationUrl: "https://auth.openai.com/codex/device",
        userCode: "CODE-12345",
        expiresInMs: 900_000,
      });
      expect(onProgress).toHaveBeenNthCalledWith(1, "Requesting device code…");
      expect(onProgress).toHaveBeenNthCalledWith(2, "Waiting for device authorization…");
      expect(onProgress).toHaveBeenNthCalledWith(3, "Exchanging device code…");
      expect(credentials).toMatchObject({
        access: expect.any(String),
        refresh: "refresh-token-123",
      });
      expect(credentials).not.toHaveProperty("accountId");
      expect(credentials.expires).toBeGreaterThan(Date.now());
    } finally {
      vi.useRealTimers();
      vi.unstubAllEnvs();
    }
  });

  it("treats JWT-derived expiry fallback as an absolute timestamp", async () => {
    const accessToken = createJwt({
      exp: Math.floor(Date.now() / 1000) + 600,
      "https://api.openai.com/auth": {
        chatgpt_account_id: "acct_123",
      },
    });
    const expectedExpiry = resolveCodexAccessTokenExpiry(accessToken);
    const fetchMock = vi
      .fn()
      .mockResolvedValueOnce(
        createJsonResponse({
          device_auth_id: "device-auth-123",
          user_code: "CODE-12345",
          interval: "0",
        }),
      )
      .mockResolvedValueOnce(
        createJsonResponse({
          authorization_code: "authorization-code-123",
          code_verifier: "code-verifier-123",
        }),
      )
      .mockResolvedValueOnce(
        createJsonResponse({
          access_token: accessToken,
          refresh_token: "refresh-token-123",
        }),
      );

    const credentials = await loginOpenAICodexDeviceCode({
      fetchFn: fetchMock as typeof fetch,
      onVerification: async () => {},
    });

    expect(expectedExpiry).toBeDefined();
    expect(credentials.expires).toBe(expectedExpiry);
  });

  it("surfaces user-code request failures", async () => {
    const fetchMock = vi.fn().mockResolvedValueOnce(
      new Response(`down\r\n\u001B[31mnow\u001B[0m`, {
        status: 503,
      }),
    );

    await expect(
      loginOpenAICodexDeviceCode({
        fetchFn: fetchMock as typeof fetch,
        onVerification: async () => {},
      }),
    ).rejects.toThrow("OpenAI device code request failed: HTTP 503 down now");
  });

  it("surfaces device authorization failures with sanitized payload details", async () => {
    const fetchMock = vi
      .fn()
      .mockResolvedValueOnce(
        createJsonResponse({
          device_auth_id: "device-auth-123",
          user_code: "CODE-12345",
          interval: "0",
        }),
      )
      .mockResolvedValueOnce(
        createJsonResponse(
          {
            error: "authorization_declined\r\n\u001B[31mspoofed\u001B[0m",
            error_description: "Denied\r\nnext line",
          },
          { status: 401 },
        ),
      );

    await expect(
      loginOpenAICodexDeviceCode({
        fetchFn: fetchMock as typeof fetch,
        onVerification: async () => {},
      }),
    ).rejects.toThrow(
      "OpenAI device authorization failed: authorization_declined spoofed (Denied next line)",
    );
  });

  it("strips C1 terminal controls from reflected device-code errors", async () => {
    const fetchMock = vi
      .fn()
      .mockResolvedValueOnce(
        createJsonResponse({
          device_auth_id: "device-auth-123",
          user_code: "CODE-12345",
          interval: "0",
        }),
      )
      .mockResolvedValueOnce(
        createJsonResponse(
          {
            error: `authorization_declined${String.fromCharCode(0x9b)}spoofed`,
            error_description: `Denied${String.fromCharCode(0x9d)}next line`,
          },
          { status: 401 },
        ),
      );

    await expect(
      loginOpenAICodexDeviceCode({
        fetchFn: fetchMock as typeof fetch,
        onVerification: async () => {},
      }),
    ).rejects.toThrow(
      "OpenAI device authorization failed: authorization_declined spoofed (Denied next line)",
    );
  });
});