[connection] add network type health check

Author: capcom6

app/src/main/java/me/capcom/smsgateway/modules/connection/ConnectionService.kt

@@ -1,10 +1,14 @@
 package me.capcom.smsgateway.modules.connection
 
+import android.Manifest
 import android.content.Context
+import android.content.pm.PackageManager
 import android.net.ConnectivityManager
 import android.net.Network
 import android.net.NetworkCapabilities
 import android.os.Build
+import android.telephony.TelephonyManager
+import androidx.core.app.ActivityCompat
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import me.capcom.smsgateway.modules.health.domain.CheckResult
@@ -14,7 +18,9 @@ import me.capcom.smsgateway.modules.logs.db.LogEntry
 import org.koin.core.component.KoinComponent
 import org.koin.core.component.inject
 
-class ConnectionService(context: Context) : KoinComponent {
+class ConnectionService(
+    private val context: Context
+) : KoinComponent {
     private val _status = MutableLiveData(false)
     val status: LiveData<Boolean> = _status
 
@@ -64,17 +70,78 @@ class ConnectionService(context: Context) : KoinComponent {
 
             false -> Status.PASS
         }
+        val value = when (status) {
+            Status.PASS -> 1L
+            else -> 0L
+        }
 
         return mapOf(
             "status" to CheckResult(
                 status,
-                0L,
-                "n/a",
+                value,
+                "Yes/No",
                 "Internet connection status"
+            ),
+            "type" to CheckResult(
+                when (networkType) {
+                    NetworkType.None -> Status.FAIL
+                    else -> Status.PASS
+                },
+                networkType.ordinal.toLong(),
+                "type index",
+                "Network type"
             )
         )
     }
 
+    val networkType: NetworkType
+        get() {
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return NetworkType.Unknown
+
+            val nw = connectivityManager.activeNetwork ?: return NetworkType.None
+            val actNw = connectivityManager.getNetworkCapabilities(nw) ?: return NetworkType.None
+            when {
+                actNw.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> return NetworkType.WiFi
+                actNw.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET) -> return NetworkType.Ethernet
+                actNw.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) -> {
+                    val tm = context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
+                    if (ActivityCompat.checkSelfPermission(
+                            context,
+                            Manifest.permission.READ_PHONE_STATE
+                        ) != PackageManager.PERMISSION_GRANTED
+                    ) {
+                        return NetworkType.MobileUnknown
+                    }
+                    when (tm.dataNetworkType) {
+                        TelephonyManager.NETWORK_TYPE_GPRS,
+                        TelephonyManager.NETWORK_TYPE_EDGE,
+                        TelephonyManager.NETWORK_TYPE_CDMA,
+                        TelephonyManager.NETWORK_TYPE_1xRTT,
+                        TelephonyManager.NETWORK_TYPE_IDEN,
+                        TelephonyManager.NETWORK_TYPE_GSM -> return NetworkType.Mobile2G
+
+                        TelephonyManager.NETWORK_TYPE_UMTS,
+                        TelephonyManager.NETWORK_TYPE_EVDO_0,
+                        TelephonyManager.NETWORK_TYPE_EVDO_A,
+                        TelephonyManager.NETWORK_TYPE_HSDPA,
+                        TelephonyManager.NETWORK_TYPE_HSUPA,
+                        TelephonyManager.NETWORK_TYPE_HSPA,
+                        TelephonyManager.NETWORK_TYPE_EVDO_B,
+                        TelephonyManager.NETWORK_TYPE_EHRPD,
+                        TelephonyManager.NETWORK_TYPE_HSPAP,
+                        TelephonyManager.NETWORK_TYPE_TD_SCDMA -> return NetworkType.Mobile3G
+
+                        TelephonyManager.NETWORK_TYPE_LTE,
+                        TelephonyManager.NETWORK_TYPE_IWLAN, 19 -> return NetworkType.Mobile4G
+
+                        TelephonyManager.NETWORK_TYPE_NR -> return NetworkType.Mobile5G
+                    }
+                }
+            }
+
+            return NetworkType.Unknown
+        }
+
     init {
         connectivityManager.registerDefaultNetworkCallback(networkCallback)
     }

app/src/main/java/me/capcom/smsgateway/modules/connection/NetworkType.kt

@@ -0,0 +1,13 @@
+package me.capcom.smsgateway.modules.connection
+
+enum class NetworkType {
+    None,
+    Unknown,
+    WiFi,
+    Ethernet,
+    MobileUnknown,
+    Mobile2G,
+    Mobile3G,
+    Mobile4G,
+    Mobile5G
+}