readest/apps/readest-app/src-tauri/plugins/tauri-plugin-native-bridge/ios/Sources/NativeBridgePlugin.swift

import AuthenticationServices
import AVFoundation
import MediaPlayer
import SwiftRs
import Tauri
import UIKit
import WebKit

class SafariAuthRequestArgs: Decodable {
  let authUrl: String
}

class UseBackgroundAudioRequestArgs: Decodable {
  let enabled: Bool
}

class NativeBridgePlugin: Plugin {
  private var authSession: ASWebAuthenticationSession?

  @objc public func use_background_audio(_ invoke: Invoke) {
    do {
      let args = try invoke.parseArgs(UseBackgroundAudioRequestArgs.self)
      let enabled = args.enabled
      let session = AVAudioSession.sharedInstance()
      if enabled {
        try session.setCategory(.playback, mode: .default, options: [.mixWithOthers])
        try session.setActive(true)
        print("AVAudioSession activated")
      } else {
        try session.setActive(false)
        MPNowPlayingInfoCenter.default().nowPlayingInfo = nil
        print("AVAudioSession deactivated")
      }
      invoke.resolve()
    } catch {
      print("Failed to set up audio session:", error)
    }
  }

  @objc public func auth_with_safari(_ invoke: Invoke) throws {
    let args = try invoke.parseArgs(SafariAuthRequestArgs.self)
    let authUrl = URL(string: args.authUrl)!

    authSession = ASWebAuthenticationSession(url: authUrl, callbackURLScheme: "readest") {
      [weak self] callbackURL, error in
      guard let strongSelf = self else { return }

      if let error = error {
        Logger.error("Auth session error: \(error.localizedDescription)")
        invoke.reject(error.localizedDescription)
        return
      }

      if let callbackURL = callbackURL {
        Logger.info("Auth session callback URL: \(callbackURL.absoluteString)")
        strongSelf.authSession?.cancel()
        strongSelf.authSession = nil
        invoke.resolve(["redirectUrl": callbackURL.absoluteString])
      }
    }

    if #available(iOS 13.0, *) {
      authSession?.presentationContextProvider = self
    }

    let started = authSession?.start() ?? false
    Logger.info("Auth session start result: \(started)")
  }
}

@_cdecl("init_plugin_native_bridge")
func initPlugin() -> Plugin {
  return NativeBridgePlugin()
}

@available(iOS 13.0, *)
extension NativeBridgePlugin: ASWebAuthenticationPresentationContextProviding {
  func presentationAnchor(for session: ASWebAuthenticationSession) -> ASPresentationAnchor {
    return UIApplication.shared.windows.first ?? UIWindow()
  }
}