Improved debug info

app/src/main/java/eu/faircode/email/ConnectionHelper.java

@@ -468,6 +468,33 @@ public class ConnectionHelper {
         return (status == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED);
     }
 
+    static String getDataSaving(Context context) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N)
+            return null;
+
+        try {
+            ConnectivityManager cm =
+                    (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+            if (cm == null)
+                return null;
+
+            int status = cm.getRestrictBackgroundStatus();
+            switch (status) {
+                case ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED:
+                    return "disabled";
+                case ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED:
+                    return "enabled";
+                case ConnectivityManager.RESTRICT_BACKGROUND_STATUS_WHITELISTED:
+                    return "whitelisted";
+                default:
+                    return Integer.toString(status);
+            }
+        } catch (Throwable ex) {
+            Log.e(ex);
+            return null;
+        }
+    }
+
     static boolean vpnActive(Context context) {
         ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
         if (cm == null)

app/src/main/java/eu/faircode/email/Log.java

@@ -2059,6 +2059,7 @@ public class Log {
                 boolean auto_optimize = prefs.getBoolean("auto_optimize", false);
                 boolean schedule = prefs.getBoolean("schedule", false);
 
+                String ds = ConnectionHelper.getDataSaving(context);
                 boolean vpn = ConnectionHelper.vpnActive(context);
                 boolean ng = Helper.isInstalled(context, "eu.faircode.netguard");
                 boolean tc = Helper.isInstalled(context, "net.kollnig.missioncontrol");
@@ -2066,6 +2067,7 @@ public class Log {
                 size += write(os, "enabled=" + enabled + (enabled ? "" : " !!!") +
                         " interval=" + pollInterval + "\r\n" +
                         "metered=" + metered + (metered ? "" : " !!!") +
+                        " restricted=" + ds + ("enabled".equals(ds) ? " !!!" : "") +
                         " vpn=" + vpn + (vpn ? " !!!" : "") +
                         " ng=" + ng + " tc=" + tc + "\r\n" +
                         "optimizing=" + (ignoring == null ? null : !ignoring) + (Boolean.FALSE.equals(ignoring) ? " !!!" : "") +