import { describe, it, expect } from 'vitest'
import { UNIVERSAL_ROW_VERSION, isUniversalRow, type UniversalRow } from '../src/index.js'

const valid: UniversalRow = {
  sourceType: 'wp:post', sourceId: '101', status: 'publish', locale: 'en',
  sourceUrl: 'https://fixture.example/news/fixture-news-a.html',
  slug: 'fixture-news-a', title: 'Fixture News A', excerpt: 'Fixture excerpt A',
  bodyHtml: '<p>Body</p>', publishedAt: '2026-10-05T09:00:00Z', modifiedAt: '2026-10-06T10:00:00Z',
  taxonomyRefs: [{ taxonomy: 'category', sourceTermId: '31' }],
  attachmentRefs: [{ role: 'featured', sourceId: '201' }],
  seo: { title: 'Fixture SEO Title A' },
  knownFields: {}, extras: { custom_meta: 'x' },
  rawLocation: 'wxr://item/3',
}

describe('UniversalRow 契约', () => {
  it('版本号为 1（冻结，变更须升版并保留转换测试）', () => {
    expect(UNIVERSAL_ROW_VERSION).toBe(1)
  })
  it('合法对象通过守卫', () => {
    expect(isUniversalRow(valid)).toBe(true)
  })
  it('缺必填字段拒绝', () => {
    const { sourceId: _omit, ...bad } = valid
    expect(isUniversalRow(bad)).toBe(false)
  })
})

const REQUIRED_KEYS = [
  'sourceType', 'sourceId', 'status', 'locale',
  'taxonomyRefs', 'attachmentRefs', 'seo', 'knownFields', 'extras', 'rawLocation',
] as const

describe('UniversalRow 守卫拒绝路径', () => {
  it.each(REQUIRED_KEYS)('缺必填字段 %s 拒绝', (key) => {
    const clone: Record<string, unknown> = { ...valid }
    delete clone[key]
    expect(isUniversalRow(clone)).toBe(false)
  })

  it('非对象输入拒绝（null / number）', () => {
    expect(isUniversalRow(null)).toBe(false)
    expect(isUniversalRow(42)).toBe(false)
  })

  it('taxonomyRefs 非数组拒绝', () => {
    expect(isUniversalRow({ ...valid, taxonomyRefs: 'oops' })).toBe(false)
  })

  it('必填字符串字段非字符串拒绝（sourceId 数字）', () => {
    expect(isUniversalRow({ ...valid, sourceId: 101 })).toBe(false)
  })

  it('seo 为数组拒绝（数组伪装对象）', () => {
    expect(isUniversalRow({ ...valid, seo: [] })).toBe(false)
  })
})