import { describe, expect, test } from 'bun:test'

import { formatReachabilityFailureDetail } from './system-check.ts'

describe('formatReachabilityFailureDetail', () => {
  test('returns generic failure detail for non-codex transport', () => {
    const detail = formatReachabilityFailureDetail(
      'https://api.openai.com/v1/models',
      429,
      '{"error":"rate_limit"}',
      {
        transport: 'chat_completions',
        requestedModel: 'gpt-4o',
        resolvedModel: 'gpt-4o',
      },
    )

    expect(detail).toBe(
      'Unexpected status 429 from https://api.openai.com/v1/models. Body: {"error":"rate_limit"}',
    )
  })

  test('adds alias/entitlement hint for codex model support 400s', () => {
    const detail = formatReachabilityFailureDetail(
      'https://chatgpt.com/backend-api/codex/responses',
      400,
      '{"detail":"The \\"gpt-5.3-codex-spark\\" model is not supported when using Codex with a ChatGPT account."}',
      {
        transport: 'codex_responses',
        requestedModel: 'codexspark',
        resolvedModel: 'gpt-5.3-codex-spark',
      },
    )

    expect(detail).toContain(
      'model alias "codexspark" resolved to "gpt-5.3-codex-spark"',
    )
    expect(detail).toContain(
      'Try "codexplan" or another entitled Codex model.',
    )
  })
})