import { describe, expect, it } from 'vitest'
import en from '../i18n/locales/en.json'
import sk from '../i18n/locales/sk.json'

type JsonValue = string | number | boolean | null | JsonObject | JsonValue[]
type JsonObject = Record<string, JsonValue>

function collectLeafPaths(value: JsonValue, prefix = ''): string[] {
  if (Array.isArray(value)) {
    return value.flatMap((item, index) => collectLeafPaths(item, `${prefix}[${index}]`))
  }

  if (value !== null && typeof value === 'object') {
    return Object.entries(value as JsonObject).flatMap(([key, nestedValue]) =>
      collectLeafPaths(nestedValue, prefix ? `${prefix}.${key}` : key)
    )
  }

  return [prefix]
}

describe('i18n locale files', () => {
  it('keep the same translation key structure in slovak and english', () => {
    const skPaths = collectLeafPaths(sk as JsonObject).sort()
    const enPaths = collectLeafPaths(en as JsonObject).sort()

    expect(skPaths).toEqual(enPaths)
  })
})