import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest'

describe('embedText', () => {
  beforeEach(() => {
    process.env.VOYAGE_API_KEY = 'test-key'
  })

  afterEach(() => {
    vi.restoreAllMocks()
  })

  it('returns 1024-element embedding array', async () => {
    const mockEmbedding = Array.from({ length: 1024 }, (_, i) => i / 1024)
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue({
      ok: true,
      json: () => Promise.resolve({ data: [{ embedding: mockEmbedding }] }),
    }))
    const { embedText } = await import('@/lib/claude/embed')
    const result = await embedText('forklift hit racking in zone B')
    expect(result).toHaveLength(1024)
    expect(result[0]).toBeCloseTo(0)
    expect(result[1023]).toBeCloseTo(1023 / 1024)
  })

  it('throws on non-ok response', async () => {
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue({ ok: false, status: 401 }))
    const { embedText } = await import('@/lib/claude/embed')
    await expect(embedText('test')).rejects.toThrow('Voyage embed failed: 401')
  })

  it('throws when VOYAGE_API_KEY is missing', async () => {
    delete process.env.VOYAGE_API_KEY
    vi.resetModules()
    const { embedText } = await import('@/lib/claude/embed')
    await expect(embedText('test')).rejects.toThrow('VOYAGE_API_KEY')
  })
})