import { serverSupabaseServiceRole } from '#supabase/server'

export default defineEventHandler(async (event) => {
  const supabase = serverSupabaseServiceRole(event)

  // Fetch from Flightics
  const [locData, countryData] = await Promise.all([
    getLocations(),
    getCountries()
  ])

  // Build lookup maps for city names and countries
  const cityMap = new Map(locData.cities.map(c => [c.id, c]))
  const locCountryMap = new Map(locData.countries.map(c => [c.id, c]))

  // Upsert airports enriched with city and country names
  const airports = locData.airports.map(a => {
    const city = cityMap.get(a.cityId)
    const country = city ? locCountryMap.get(city.countryId) : undefined
    return {
      iata: a.iata,
      icao: a.icao,
      name: a.nameEng,
      lat: a.lat,
      lon: a.lon,
      city_id: a.cityId,
      city_name: city?.nameEng || '',
      country_code: country?.isoCode2 || '',
      country_name: country?.nameEng || '',
      updated_at: new Date().toISOString()
    }
  })

  if (airports.length > 0) {
    const { error: airportErr } = await supabase
      .from('airports')
      .upsert(airports as never, { onConflict: 'iata' })
    if (airportErr) throw createError({ statusCode: 500, message: airportErr.message })
  }

  // Upsert countries from dedicated endpoint
  const countries = countryData.countries.map(c => ({
    iso_code2: c.isoCode2,
    iso_code3: c.isoCode3,
    name_eng: c.nameEng,
    name_native: c.nameNative,
    phone_prefix: c.phonePreselection,
    updated_at: new Date().toISOString()
  }))

  if (countries.length > 0) {
    const { error: countryErr } = await supabase
      .from('countries')
      .upsert(countries as never, { onConflict: 'iso_code2' })
    if (countryErr) throw createError({ statusCode: 500, message: countryErr.message })
  }

  return { count: airports.length, countries: countries.length }
})