import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest'
import { initLogger, logError, logWarn, logInfo, logDebug } from '../../app/utils/logger.js'

describe('logger', () => {
  let fetchMock

  beforeEach(() => {
    fetchMock = vi.fn().mockResolvedValue(undefined)
    vi.stubGlobal('$fetch', fetchMock)
    vi.useFakeTimers()
  })

  afterEach(() => {
    vi.useRealTimers()
    vi.unstubAllGlobals()
  })

  it('initLogger sets context', () => {
    initLogger('sess-1', 'user-1')
    logError('test', {})
    vi.advanceTimersByTime(10)
    expect(fetchMock).toHaveBeenCalledWith('/api/log', expect.objectContaining({
      method: 'POST',
      body: expect.objectContaining({
        sessionId: 'sess-1',
        userId: 'user-1',
        level: 'error',
        message: 'test',
      }),
    }))
  })

  it('logError sends error level', () => {
    logError('err', { code: 1 })
    vi.advanceTimersByTime(10)
    expect(fetchMock).toHaveBeenCalledWith('/api/log', expect.objectContaining({
      body: expect.objectContaining({ level: 'error', message: 'err', data: { code: 1 } }),
    }))
  })

  it('logWarn sends warn level', () => {
    logWarn('warn', {})
    vi.advanceTimersByTime(10)
    expect(fetchMock).toHaveBeenCalledWith('/api/log', expect.objectContaining({
      body: expect.objectContaining({ level: 'warn', message: 'warn' }),
    }))
  })

  it('logInfo sends info level', () => {
    logInfo('info', {})
    vi.advanceTimersByTime(10)
    expect(fetchMock).toHaveBeenCalledWith('/api/log', expect.objectContaining({
      body: expect.objectContaining({ level: 'info', message: 'info' }),
    }))
  })

  it('logDebug sends debug level', () => {
    logDebug('debug', {})
    vi.advanceTimersByTime(10)
    expect(fetchMock).toHaveBeenCalledWith('/api/log', expect.objectContaining({
      body: expect.objectContaining({ level: 'debug', message: 'debug' }),
    }))
  })

  it('does not throw when $fetch rejects', async () => {
    vi.stubGlobal('$fetch', vi.fn().mockRejectedValue(new Error('network')))
    logError('x', {})
    vi.advanceTimersByTime(10)
    await vi.advanceTimersByTimeAsync(0)
  })
})