import { AxiosHeaders } from 'axios'
import { describe, expect, it } from 'vitest'

import { FORM_DATA_UPLOAD_TIMEOUT_MS, applyFormDataRequestDefaults } from '@/lib/formDataRequest'

describe('applyFormDataRequestDefaults', () => {
  it('strips stale Content-Type before Axios transforms FormData', () => {
    const config = applyFormDataRequestDefaults({
      data: new FormData(),
      headers: AxiosHeaders.from({ 'Content-Type': 'multipart/form-data' }),
    } as never)

    expect(AxiosHeaders.from(config.headers).get('Content-Type')).toBeUndefined()
    expect(config.timeout).toBe(FORM_DATA_UPLOAD_TIMEOUT_MS)
  })

  it('leaves JSON requests unchanged', () => {
    const config = applyFormDataRequestDefaults({
      data: { ok: true },
      headers: AxiosHeaders.from({ 'Content-Type': 'application/json' }),
      timeout: 0,
    } as never)

    expect(AxiosHeaders.from(config.headers).get('Content-Type')).toBe('application/json')
    expect(config.timeout).toBe(0)
  })
})