/**
 * HoloSphere Service - PLACEHOLDER
 *
 * This service previously used the holosphere library (which uses GunDB).
 * It's now a stub awaiting Nostr integration for decentralized data storage.
 *
 * TODO: Integrate with Nostr protocol when Holons.io provides their Nostr-based API
 */

// Feature flag to completely disable Holon functionality
// Set to true when ready to re-enable
export const HOLON_ENABLED = false

import * as h3 from 'h3-js'

export interface HolonData {
  id: string
  name: string
  description?: string
  latitude: number
  longitude: number
  resolution: number
  data: Record<string, any>
  timestamp: number
}

export interface HolonLens {
  name: string
  schema?: any
  data: any[]
}

export interface HolonConnection {
  id: string
  name: string
  type: 'federation' | 'reference'
  targetSpace: string
  status: 'connected' | 'disconnected' | 'error'
}

/**
 * Placeholder HoloSphere Service
 * Returns empty/default values until Nostr integration is available
 */
export class HoloSphereService {
  private isInitialized: boolean = false
  private connections: Map<string, HolonConnection> = new Map()
  private localCache: Map<string, any> = new Map() // Local-only cache for development

  constructor(_appName: string = 'canvas-holons', _strict: boolean = false, _openaiKey?: string) {
    this.isInitialized = true
    // Only log if Holon functionality is enabled
    if (HOLON_ENABLED) {
    }
  }

  async initialize(): Promise<boolean> {
    return this.isInitialized
  }

  // Get a holon for specific coordinates and resolution
  async getHolon(lat: number, lng: number, resolution: number): Promise<string> {
    if (!HOLON_ENABLED) return ''
    try {
      return h3.latLngToCell(lat, lng, resolution)
    } catch (error) {
      // Silently fail when disabled
      return ''
    }
  }

  // Store data in local cache (placeholder for Nostr)
  async putData(holon: string, lens: string, data: any): Promise<boolean> {
    if (!HOLON_ENABLED) return false
    const key = `${holon}:${lens}`
    const existing = this.localCache.get(key) || {}
    this.localCache.set(key, { ...existing, ...data })
    return true
  }

  // Retrieve data from local cache
  async getData(holon: string, lens: string, _key?: string): Promise<any> {
    if (!HOLON_ENABLED) return null
    const cacheKey = `${holon}:${lens}`
    return this.localCache.get(cacheKey) || null
  }

  // Retrieve data with subscription (stub - just returns cached data)
  async getDataWithWait(holon: string, lens: string, _timeoutMs: number = 5000): Promise<any> {
    if (!HOLON_ENABLED) return null
    return this.getData(holon, lens)
  }

  // Delete data from local cache
  async deleteData(holon: string, lens: string, _key?: string): Promise<boolean> {
    if (!HOLON_ENABLED) return false
    const cacheKey = `${holon}:${lens}`
    this.localCache.delete(cacheKey)
    return true
  }

  // Schema methods (stub)
  async setSchema(_lens: string, _schema: any): Promise<boolean> {
    if (!HOLON_ENABLED) return false
    return true
  }

  async getSchema(_lens: string): Promise<any> {
    return null
  }

  // Subscribe to changes (stub - no-op)
  subscribe(_holon: string, _lens: string, _callback: (data: any) => void): void {
    // No-op when disabled or in stub mode
  }

  // Get holon hierarchy using h3-js
  getHolonHierarchy(holon: string): { parent?: string; children: string[] } {
    if (!HOLON_ENABLED) return { children: [] }
    try {
      const resolution = h3.getResolution(holon)
      const parent = resolution > 0 ? h3.cellToParent(holon, resolution - 1) : undefined
      const children = h3.cellToChildren(holon, resolution + 1)
      return { parent, children }
    } catch (error) {
      return { children: [] }
    }
  }

  // Get all scales for a holon
  getHolonScalespace(holon: string): string[] {
    if (!HOLON_ENABLED) return []
    try {
      const resolution = h3.getResolution(holon)
      const scales: string[] = [holon]

      // Get all parent holons up to resolution 0
      let current = holon
      for (let r = resolution - 1; r >= 0; r--) {
        current = h3.cellToParent(current, r)
        scales.unshift(current)
      }

      return scales
    } catch (error) {
      return []
    }
  }

  // Federation methods (stub)
  async federate(_spaceId1: string, _spaceId2: string, _password1?: string, _password2?: string, _bidirectional?: boolean): Promise<boolean> {
    return false
  }

  async propagate(_holon: string, _lens: string, _data: any, _options?: { useReferences?: boolean; targetSpaces?: string[] }): Promise<boolean> {
    return false
  }

  // Message federation (stub)
  async federateMessage(_originalChatId: string, _messageId: string, _federatedChatId: string, _federatedMessageId: string, _type: string): Promise<boolean> {
    return false
  }

  async getFederatedMessages(_originalChatId: string, _messageId: string): Promise<any[]> {
    return []
  }

  async updateFederatedMessages(_originalChatId: string, _messageId: string, _updateCallback: (chatId: string, messageId: string) => Promise<void>): Promise<boolean> {
    return false
  }

  // Utility methods for working with resolutions
  static getResolutionName(resolution: number): string {
    const names = [
      'Country', 'State/Province', 'Metropolitan Area', 'City', 'District',
      'Neighborhood', 'Block', 'Building', 'Room', 'Desk', 'Chair', 'Point'
    ]
    return names[resolution] || `Level ${resolution}`
  }

  static getResolutionDescription(resolution: number): string {
    const descriptions = [
      'Country level - covers entire countries',
      'State/Province level - covers states and provinces',
      'Metropolitan area level - covers large urban areas',
      'City level - covers individual cities',
      'District level - covers city districts',
      'Neighborhood level - covers neighborhoods',
      'Block level - covers city blocks',
      'Building level - covers individual buildings',
      'Room level - covers individual rooms',
      'Desk level - covers individual desks',
      'Chair level - covers individual chairs',
      'Point level - covers individual points'
    ]
    return descriptions[resolution] || `Geographic level ${resolution}`
  }

  // Connection management
  getConnectionStatus(spaceId: string): HolonConnection | undefined {
    return this.connections.get(spaceId)
  }

  addConnection(connection: HolonConnection): void {
    this.connections.set(connection.id, connection)
  }

  removeConnection(spaceId: string): boolean {
    return this.connections.delete(spaceId)
  }

  getAllConnections(): HolonConnection[] {
    return Array.from(this.connections.values())
  }
}

// Create a singleton instance
export const holosphereService = new HoloSphereService('canvas-holons', false)
