// RPC Client for connecting to Archipelago backend

export interface RPCOptions {
  method: string
  params?: any
  timeout?: number
}

export interface RPCResponse<T> {
  result?: T
  error?: {
    code: number
    message: string
    data?: any
  }
}

class RPCClient {
  private baseUrl: string

  constructor(baseUrl: string = '/rpc/v1') {
    this.baseUrl = baseUrl
  }

  async call<T>(options: RPCOptions): Promise<T> {
    const { method, params = {}, timeout = 30000 } = options

    const controller = new AbortController()
    const timeoutId = setTimeout(() => controller.abort(), timeout)

    try {
      const response = await fetch(this.baseUrl, {
        method: 'POST',
        credentials: 'include', // Important for session cookies
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({ method, params }),
        signal: controller.signal,
      })

      clearTimeout(timeoutId)

      if (!response.ok) {
        throw new Error(`HTTP ${response.status}: ${response.statusText}`)
      }

      const data: RPCResponse<T> = await response.json()

      if (data.error) {
        throw new Error(data.error.message || 'RPC Error')
      }

      return data.result as T
    } catch (error) {
      clearTimeout(timeoutId)
      if (error instanceof Error) {
        if (error.name === 'AbortError') {
          throw new Error('Request timeout')
        }
        throw error
      }
      throw new Error('Unknown error occurred')
    }
  }

  // Convenience methods
  async login(password: string): Promise<void> {
    return this.call({
      method: 'auth.login',
      params: {
        password,
        metadata: {
          // Add any metadata needed
        },
      },
    })
  }

  async changePassword(params: {
    currentPassword: string
    newPassword: string
    alsoChangeSsh?: boolean
  }): Promise<{ success: boolean }> {
    return this.call({
      method: 'auth.changePassword',
      params: {
        currentPassword: params.currentPassword,
        newPassword: params.newPassword,
        alsoChangeSsh: params.alsoChangeSsh ?? true,
      },
    })
  }

  async logout(): Promise<void> {
    return this.call({
      method: 'auth.logout',
      params: {},
    })
  }

  async completeOnboarding(): Promise<boolean> {
    return this.call({
      method: 'auth.onboardingComplete',
      params: {},
    })
  }

  async isOnboardingComplete(): Promise<boolean> {
    return this.call({
      method: 'auth.isOnboardingComplete',
      params: {},
    })
  }

  async getNodeDid(): Promise<{ did: string; pubkey: string }> {
    return this.call({
      method: 'node.did',
      params: {},
    })
  }

  async publishNostrIdentity(): Promise<{ event_id: string; success: number; failed: number }> {
    return this.call({
      method: 'node.nostr-publish',
      params: {},
    })
  }

  async getNostrPubkey(): Promise<{ nostr_pubkey: string }> {
    return this.call({
      method: 'node.nostr-pubkey',
      params: {},
    })
  }

  async listPeers(): Promise<{ peers: Array<{ onion: string; pubkey: string; name?: string }> }> {
    return this.call({
      method: 'node-list-peers',
      params: {},
    })
  }

  async addPeer(params: { onion: string; pubkey: string; name?: string }): Promise<{ peers: unknown[] }> {
    return this.call({
      method: 'node-add-peer',
      params,
    })
  }

  async removePeer(pubkey: string): Promise<{ peers: unknown[] }> {
    return this.call({
      method: 'node-remove-peer',
      params: { pubkey },
    })
  }

  async sendMessageToPeer(onion: string, message: string): Promise<{ ok: boolean; sent_to: string }> {
    return this.call({
      method: 'node-send-message',
      params: { onion, message },
      timeout: 90000,
    })
  }

  async checkPeerReachable(onion: string): Promise<{ onion: string; reachable: boolean }> {
    return this.call({
      method: 'node-check-peer',
      params: { onion },
      timeout: 35000,
    })
  }

  async getReceivedMessages(): Promise<{ messages: Array<{ from_pubkey: string; message: string; timestamp: string }> }> {
    return this.call({
      method: 'node-messages-received',
      params: {},
    })
  }

  async discoverNodes(): Promise<{ nodes: Array<{ did: string; onion: string; pubkey: string; node_address: string }> }> {
    return this.call({
      method: 'node-nostr-discover',
      params: {},
      timeout: 20000,
    })
  }

  async getTorAddress(): Promise<{ tor_address: string | null }> {
    return this.call({
      method: 'node.tor-address',
      params: {},
    })
  }

  async verifyNostrRevoked(): Promise<{
    revoked: boolean
    nostr_pubkey: string
    latest_content?: string
    error?: string
  }> {
    return this.call({
      method: 'node-nostr-verify-revoked',
      params: {},
      timeout: 25000,
    })
  }

  async echo(message: string): Promise<string> {
    return this.call({
      method: 'server.echo',
      params: { message },
    })
  }

  async getSystemTime(): Promise<{ now: string; uptime: number }> {
    return this.call({
      method: 'server.time',
      params: {},
    })
  }

  async getMetrics(): Promise<any> {
    return this.call({
      method: 'server.metrics',
      params: {},
    })
  }

  async updateServer(marketplaceUrl: string): Promise<'updating' | 'no-updates'> {
    return this.call({
      method: 'server.update',
      params: { 'marketplace-url': marketplaceUrl },
    })
  }

  async restartServer(): Promise<void> {
    return this.call({
      method: 'server.restart',
      params: {},
    })
  }

  async shutdownServer(): Promise<void> {
    return this.call({
      method: 'server.shutdown',
      params: {},
    })
  }

  async installPackage(id: string, marketplaceUrl: string, version: string): Promise<string> {
    return this.call({
      method: 'package.install',
      params: { id, 'marketplace-url': marketplaceUrl, version },
    })
  }

  async uninstallPackage(id: string): Promise<void> {
    return this.call({
      method: 'package.uninstall',
      params: { id },
    })
  }

  async startPackage(id: string): Promise<void> {
    return this.call({
      method: 'package.start',
      params: { id },
    })
  }

  async stopPackage(id: string): Promise<void> {
    return this.call({
      method: 'package.stop',
      params: { id },
    })
  }

  async restartPackage(id: string): Promise<void> {
    return this.call({
      method: 'package.restart',
      params: { id },
    })
  }

  async getMarketplace(url: string): Promise<any> {
    return this.call({
      method: 'marketplace.get',
      params: { url },
    })
  }

  async sideloadPackage(manifest: any, icon: string): Promise<string> {
    return this.call({
      method: 'package.sideload',
      params: { manifest, icon },
      timeout: 120000, // 2 minutes for upload
    })
  }
}

export const rpcClient = new RPCClient()