import { create } from 'zustand';
import type { POI } from '../types';

interface POIsState {
  /** Currently opened POIs */
  openedPOIs: POI[];
  
  /**
   * Opens a POI if not already opened
   * @param poi - The POI to open
   */
  openPOI: (poi: POI) => void;
  
  /**
   * Closes a specific POI
   * @param poiId - The ID of the POI to close
   */
  closePOI: (poiId: number) => void;
  
  /**
   * Closes all opened POIs
   */
  closeAll: () => void;
}

export const usePOIsStore = create<POIsState>((set) => ({
  openedPOIs: [],

  openPOI: (poi) => set((state) => {
    // Don't add if POI is already opened
    if (state.openedPOIs.some(p => p.id === poi.id)) {
      return state;
    }

    return {
      openedPOIs: [...state.openedPOIs, poi]
    };
  }),

  closePOI: (poiId) => set((state) => ({
    openedPOIs: state.openedPOIs.filter(poi => poi.id !== poiId)
  })),

  closeAll: () => set({ openedPOIs: [] })
}));