webapp/app/composables/useClusteredNodes.ts

import { GetClusteredNodesDocument } from './graphql/public/geo-generated'
import type { ClusterPoint } from './graphql/public/geo-generated'

export interface MapBounds {
  west: number
  south: number
  east: number
  north: number
  zoom: number
}

export function useClusteredNodes(
  transportType?: Ref<string | undefined>,
  nodeType?: Ref<string | undefined>,
) {
  const { client } = useApolloClient('publicGeo')

  const clusteredNodes = ref<ClusterPoint[]>([])
  const loading = ref(false)

  const fetchClusters = async (bounds: MapBounds) => {
    loading.value = true
    try {
      const { data } = await client.query({
        query: GetClusteredNodesDocument,
        variables: {
          west: bounds.west,
          south: bounds.south,
          east: bounds.east,
          north: bounds.north,
          zoom: Math.floor(bounds.zoom),
          transportType: transportType?.value,
          nodeType: nodeType?.value,
        },
        fetchPolicy: 'network-only'
      })

      clusteredNodes.value = (data?.clusteredNodes ?? []).filter(Boolean) as ClusterPoint[]
    } catch (error) {
      console.error('Failed to fetch clustered nodes:', error)
      clusteredNodes.value = []
    } finally {
      loading.value = false
    }
  }

  const clearNodes = () => {
    clusteredNodes.value = []
  }

  return {
    clusteredNodes,
    loading,
    fetchClusters,
    clearNodes
  }
}