import { beforeEach, describe, expect, it, vi } from 'vitest'
import { TranscriptsApi } from './TranscriptsApi'
import type { ApiClient } from '../../core/ApiClient'
import type { TranscriptResponse } from './types'

// ── Mock client factory ──────────────────────────────────────────────

function createMockClient(): ApiClient {
  return {
    setAccessToken: vi.fn().mockReturnThis(),
    request: vi.fn(),
    get: vi.fn(),
    post: vi.fn(),
    put: vi.fn(),
    patch: vi.fn(),
    delete: vi.fn(),
  }
}

// ── Tests ────────────────────────────────────────────────────────────

describe('TranscriptsApi', () => {
  let client: ReturnType<typeof createMockClient>
  let api: TranscriptsApi

  beforeEach(() => {
    client = createMockClient()
    api = new TranscriptsApi(client)
  })

  // ── getById ──────────────────────────────────────────────────────

  describe('getById', () => {
    it('calls client.get with /transcripts/:id', async () => {
      const response: TranscriptResponse = {
        id: 'msg-1',
        isTranscribing: true,
        transcribeError: false,
      }
      vi.mocked(client.get).mockResolvedValue(response)
      const result = await api.getById('msg-1')
      expect(client.get).toHaveBeenCalledWith('/transcripts/msg-1', undefined)
      expect(result).toEqual(response)
    })

    it('forwards custom headers', async () => {
      const response: TranscriptResponse = {
        id: 'msg-2',
        isTranscribing: false,
        transcribeError: true,
      }
      vi.mocked(client.get).mockResolvedValue(response)
      const headers = { 'X-Custom': 'h' }
      await api.getById('msg-2', headers)
      expect(client.get).toHaveBeenCalledWith('/transcripts/msg-2', headers)
    })

    it('propagates errors from client.get', async () => {
      vi.mocked(client.get).mockRejectedValue(new Error('Not found'))
      await expect(api.getById('missing')).rejects.toThrow('Not found')
    })
  })
})