import { API_BASE_URL } from '~/CONSTANT'

const saberPaths = ref<string[]>([])
const currentSaberDays = ref<string>('')

async function refreshPath() {
  if (saberPaths.value.length)
    return
  const resp = await baseFetch<string[]>(`${API_BASE_URL}/saber/metadata`).json()
  const data = resp.data.value
  saberPaths.value = data!
}

async function refreshCurrentSaberDays(path: string) {
  const resp = await baseFetch<string>(`${API_BASE_URL}/saber/metadata/list_days?path=${path}`).json()
  const data = resp.data.value
  currentSaberDays.value = data!
}
function renderPath(path: string) {
  const yearPattern = /\/data\/(\d{4})/
  const year = path.match(yearPattern)?.[1]
  const monthPattern = /Temp_O3_(.*)(\d{4})/
  const month_mapping = {
    January: '01月',
    February: '02月',
    March: '03月',
    April: '04月',
    May: '05月',
    June: '06月',
    July: '07月',
    August: '08月',
    September: '09月',
    October: '10月',
    November: '11月',
    December: '12月',
  } as const
  const month = path.match(monthPattern)?.[1] as keyof typeof month_mapping
  return `${year}年${month_mapping[month]}`
}

function parseDayOfYear(dateString: string): Date {
  const year = Number.parseInt(dateString.substring(0, 4))
  const dayOfYear = Number.parseInt(dateString.substring(4)) - 1 // subtract 1 because JS dates are 0-based
  const date = new Date(year, 0) // Start with January 1st of the year
  date.setDate(dayOfYear + 1) // Add the days
  return date
}

export { currentSaberDays, parseDayOfYear, refreshCurrentSaberDays, refreshPath, renderPath, saberPaths }