/**
 * Composable for map navigation (go-to coordinates) and focus search.
 * MapView registers the implementation on mount; MapSearch and shortcuts use it.
 */
type GoToCoordsFn = (mapId: number, x: number, y: number, zoom?: number) => void

const goToImpl = ref<GoToCoordsFn | null>(null)
const focusSearchImpl = ref<(() => void) | null>(null)

export function useMapNavigate() {
  function setGoTo(fn: GoToCoordsFn | null) {
    goToImpl.value = fn
  }

  function goToCoords(mapId: number, x: number, y: number, zoom?: number) {
    goToImpl.value?.(mapId, x, y, zoom)
  }

  function setFocusSearch(fn: (() => void) | null) {
    focusSearchImpl.value = fn
  }

  function focusSearch() {
    focusSearchImpl.value?.()
  }

  return { setGoTo, goToCoords, setFocusSearch, focusSearch }
}