import { afterEach, beforeEach, describe, expect, it, mock, spyOn } from "bun:test"
import { login } from "./login"
import type { LoginDependencies } from "./login"

const mockLogin = mock(() => Promise.resolve({ accessToken: "test-token", expiresAt: 1710000000 }))

describe("login command", () => {
  let consoleErrorSpy: ReturnType<typeof spyOn>
  let consoleLogSpy: ReturnType<typeof spyOn>
  let deps: LoginDependencies

  beforeEach(() => {
    mock.restore()
    mockLogin.mockClear()
    consoleErrorSpy = spyOn(console, "error").mockImplementation(() => {})
    consoleLogSpy = spyOn(console, "log").mockImplementation(() => {})
    deps = {
      createProvider: () => ({
        login: () => mockLogin(),
      }),
    }
  })

  afterEach(() => {
    consoleErrorSpy.mockRestore()
    consoleLogSpy.mockRestore()
  })

  it("returns error code when server-url is not provided", async () => {
    // given
    const serverName = "test-server"
    const options = {}

    // when
    const exitCode = await login(serverName, options, deps)

    // then
    expect(exitCode).toBe(1)
  })

  it("returns success code when login succeeds", async () => {
    // given
    const serverName = "test-server"
    const options = {
      serverUrl: "https://oauth.example.com",
    }

    // when
    const exitCode = await login(serverName, options, deps)

    // then
    expect(exitCode).toBe(0)
    expect(mockLogin).toHaveBeenCalledTimes(1)
  })

  it("returns error code when login throws", async () => {
    // given
    const serverName = "test-server"
    const options = {
      serverUrl: "https://oauth.example.com",
    }
    mockLogin.mockRejectedValueOnce(new Error("Network error"))

    // when
    const exitCode = await login(serverName, options, deps)

    // then
    expect(exitCode).toBe(1)
  })

  it("returns error code when server-url is missing", async () => {
    // given
    const serverName = "test-server"
    const options = {
      clientId: "test-client-id",
    }

    // when
    const exitCode = await login(serverName, options, deps)

    // then
    expect(exitCode).toBe(1)
  })
})