import { describe, it, expect, vi, beforeEach } from 'vitest'
import { apiRequest, ApiRequestError, getLastRequestId } from './client'

describe('api client', () => {
  beforeEach(() => vi.restoreAllMocks())
  it('captures X-Request-ID and parses JSON', async () => {
    globalThis.fetch = vi.fn().mockResolvedValue(
      new Response(JSON.stringify({ ok: true }), { status: 200, headers: { 'x-request-id': 'req-123' } }),
    ) as any
    const r = await apiRequest<{ ok: boolean }>('/x')
    expect(r.ok).toBe(true)
    expect(getLastRequestId()).toBe('req-123')
  })
  it('throws typed error with detail + requestId on 4xx', async () => {
    globalThis.fetch = vi.fn().mockResolvedValue(
      new Response(JSON.stringify({ detail: 'bad' }), { status: 422, headers: { 'x-request-id': 'req-9' } }),
    ) as any
    await expect(apiRequest('/x')).rejects.toMatchObject({ status: 422, message: 'bad', requestId: 'req-9' })
  })
  it('wraps network errors safely', async () => {
    globalThis.fetch = vi.fn().mockRejectedValue(new TypeError('fail')) as any
    await expect(apiRequest('/x')).rejects.toBeInstanceOf(ApiRequestError)
  })
})