// Turning coordinates back into something a person recognises.
//
// Shared by the initial location fix and the map pin adjuster, so the address
// a rider sees while dragging the pin is formatted exactly like the one that
// was filled in for them automatically — two different shapes for the same
// place would read as a bug.
//
// Uses expo-location's on-device geocoder rather than the Places API: it costs
// nothing, works without the Google key, and this is a label, not a search.

import * as Location from "expo-location";

import { tr } from "@/lib/i18n";

/**
 * A short, human address for a point — "Hamra, Beirut" — or the generic "your
 * location" label when the geocoder has nothing useful. Never throws: a failed
 * lookup costs the label, never the coordinates.
 */
export const addressForCoords = async (
  latitude: number,
  longitude: number,
): Promise<string> => {
  try {
    const [place] = await Location.reverseGeocodeAsync({ latitude, longitude });
    if (!place) return tr("common.yourLocation");

    // Street-level first, falling back through progressively coarser fields:
    // a pin dropped in the middle of a field still deserves a name.
    const line = [
      place.name ?? place.street,
      place.district ?? place.city ?? place.subregion,
      place.region,
    ]
      .filter(Boolean)
      // The geocoder often repeats a value across fields ("Beirut, Beirut").
      .filter((part, index, all) => all.indexOf(part) === index)
      .slice(0, 2)
      .join(", ");

    return line || tr("common.yourLocation");
  } catch (error) {
    console.log("[REVERSE_GEOCODE]: ", error);
    return tr("common.yourLocation");
  }
};