import { WiFiHotspot } from '../types';

const STORAGE_KEY = 'wifi_hotspots_v2_db';

export const storageService = {
  getHotspots: (): WiFiHotspot[] => {
    try {
      const data = localStorage.getItem(STORAGE_KEY);
      if (!data) return [];
      const parsed = JSON.parse(data);
      return Array.isArray(parsed) ? parsed : [];
    } catch (e) {
      console.error("Failed to load hotspots from storage", e);
      return [];
    }
  },

  saveHotspot: (hotspot: WiFiHotspot): void => {
    try {
      const hotspots = storageService.getHotspots();
      const index = hotspots.findIndex(h => h.id === hotspot.id);
      
      if (index > -1) {
        hotspots[index] = hotspot;
      } else {
        hotspots.push(hotspot);
      }
      
      localStorage.setItem(STORAGE_KEY, JSON.stringify(hotspots));
      // Trigger a storage event for cross-tab sync if needed
      window.dispatchEvent(new Event('storage_updated'));
    } catch (e) {
      console.error("Failed to save hotspot", e);
    }
  },

  deleteHotspot: (id: string): void => {
    try {
      const hotspots = storageService.getHotspots();
      const filtered = hotspots.filter(h => h.id !== id);
      localStorage.setItem(STORAGE_KEY, JSON.stringify(filtered));
      window.dispatchEvent(new Event('storage_updated'));
    } catch (e) {
      console.error("Failed to delete hotspot", e);
    }
  }
};