package com.vpnproxydetect

import android.content.Context
import android.net.ConnectivityManager
import android.net.Network
import android.net.NetworkCapabilities
import com.facebook.react.bridge.ReactApplicationContext
import com.facebook.react.bridge.Promise
import com.facebook.react.module.annotations.ReactModule

@ReactModule(name = VpnProxyDetectModule.NAME)
class VpnProxyDetectModule(reactContext: ReactApplicationContext) :
  NativeVpnProxyDetectSpec(reactContext) {

  override fun getName(): String {
    return NAME
  }

  override fun detectVPN(promise: Promise) {
    try {
      val cm = reactApplicationContext.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
      val networks = cm.allNetworks

      var isRunningVPN = false
      for (network in networks) {
        val caps = cm.getNetworkCapabilities(network)
        if (caps != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_VPN) || !caps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN))) {
          isRunningVPN = true
          break
        }
      }
      promise.resolve(isRunningVPN)
    } catch (e: Exception) {
      promise.reject("VPN_DETECTION_ERROR", "Failed to detect VPN", e)
    }
  }

  override fun detectProxy(promise: Promise) {
    try {
      val isProxySet = System.getProperty("http.proxyPort") != null
      promise.resolve(isProxySet)
    } catch (e: Exception) {
      promise.reject("PROXY_DETECTION_ERROR", "Failed to detect proxy", e)
    }
  }

  companion object {
    const val NAME = "VpnProxyDetect"
  }
}