const { ProvinceModel } = require('../../models/StateCity')

// Iran's id in data/geo/countries.json — callers that omit country_id keep getting
// exactly the old Iran-only province list (unchanged behavior for existing screens).
const DEFAULT_COUNTRY_ID = 103

const getProvinces = async (req, res, next) => {
  try {
    const { country_id: countryIdParam } = req.query
    const countryId = countryIdParam !== undefined ? Number(countryIdParam) : DEFAULT_COUNTRY_ID
    const provinces = await ProvinceModel.find(
      Number.isFinite(countryId) ? { country_id: countryId } : {}
    )
    res.status(200).json({
      provinces
    })
  } catch (err) {
    res.status(500).send('Internal Server Error')
  }
}
module.exports = {
  getProvinces
}