import { describe, expect, it } from 'vitest'

import { columnsForCounts, countColumns, countsCSV, normaliseCountsParams } from '@/lib/counts'
import { createUII18n, translateUIMessage } from '@/lib/i18n'


describe ('counts exports', () => {
  it ('resolves every output and CSV header key in both locales', () => {
    for (const locale of ['ja', 'ain-Kana'])
    {
      const instance = createUII18n (locale)
      for (const key of Object.values (countColumns))
      {
	const translated = translateUIMessage (key, 'counts', locale, { }, instance)
	expect (translated.text).not.toBe (key)
	expect (translated.text).not.toContain ('counts:')
      }
      const fallback = translateUIMessage ('run', 'counts', locale, { }, instance)
      expect (fallback).toEqual ({ text: '集計実行', language: 'ja' })
    }
  })

  it ('makes the monthly default explicit for the existing API', () => {
    expect (normaliseCountsParams ('posts', new URLSearchParams ()).get ('axis'))
	.toBe ('month')
  })

  it ('escapes quotes, newlines and spreadsheet formulas in UTF-8 CSV', () => {
    expect (countsCSV ([['日本語', 'a"b', 'a\nb', '=1+1']]))
	.toBe ('\uFEFF"日本語","a""b","a\nb","\'=1+1"')
  })

  it ('keeps resource-specific columns out of the other resource', () => {
    expect (columnsForCounts ('posts')).toContain ('added_tags')
    expect (columnsForCounts ('posts')).not.toContain ('aliases')
    expect (columnsForCounts ('tags')).toContain ('aliases')
    expect (columnsForCounts ('tags')).not.toContain ('url')
    expect (columnsForCounts ('posts')).not.toContain ('event_type')
    expect (columnsForCounts ('tags')).not.toContain ('event_type')
  })
})