From f29ee8ac7378408e070be1130c9cadc8e947ddb3 Mon Sep 17 00:00:00 2001
From: cyBerta <cyberta@riseup.net>
Date: Tue, 23 Nov 2021 14:51:33 +0100
Subject: sort locations by transport

---
 .../base/fragments/GatewaySelectionFragment.java   | 10 +++--
 .../leap/bitmaskclient/base/models/Location.java   | 43 ++++++++++++++++------
 2 files changed, 38 insertions(+), 15 deletions(-)

(limited to 'app/src/main/java/se/leap/bitmaskclient/base')

diff --git a/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java b/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java
index 51ebe359..e3845164 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java
@@ -117,7 +117,7 @@ public class GatewaySelectionFragment extends Fragment implements Observer, Loca
         recyclerView.setHasFixedSize(true);
         LinearLayoutManager layoutManager = new LinearLayoutManager(this.getContext());
         recyclerView.setLayoutManager(layoutManager);
-        locationListAdapter = new LocationListAdapter(gatewaysManager.getGatewayLocations(), this, selectedTransport);
+        locationListAdapter = new LocationListAdapter(gatewaysManager.getSortedGatewayLocations(selectedTransport), this, selectedTransport);
         recyclerView.setAdapter(locationListAdapter);
         recyclerView.setVisibility(VISIBLE);
     }
@@ -203,14 +203,15 @@ public class GatewaySelectionFragment extends Fragment implements Observer, Loca
     public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
         if (key.equals(USE_BRIDGES)) {
             selectedTransport = PreferenceHelper.getUseBridges(sharedPreferences) ? OBFS4 : OPENVPN;
-            locationListAdapter.updateTransport(selectedTransport);
+            gatewaysManager.updateTransport(selectedTransport);
+            locationListAdapter.updateTransport(selectedTransport, gatewaysManager);
         }
     }
 
     static class LocationListAdapter extends RecyclerView.Adapter<LocationListAdapter.ViewHolder> {
         private static final String TAG = LocationListAdapter.class.getSimpleName();
         private Connection.TransportType transport;
-        private final List<Location> values;
+        private List<Location> values;
         private final WeakReference<LocationListSelectionListener> callback;
 
         static class ViewHolder extends RecyclerView.ViewHolder {
@@ -232,8 +233,9 @@ public class GatewaySelectionFragment extends Fragment implements Observer, Loca
             notifyItemRemoved(position);
         }
 
-        public void updateTransport(Connection.TransportType transportType) {
+        public void updateTransport(Connection.TransportType transportType, GatewaysManager gatewaysManager) {
             transport = transportType;
+            values = gatewaysManager.getSortedGatewayLocations(transportType);
             notifyDataSetChanged();
         }
 
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/models/Location.java b/app/src/main/java/se/leap/bitmaskclient/base/models/Location.java
index e0ce9e8b..064f25c0 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/models/Location.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/models/Location.java
@@ -19,22 +19,25 @@ package se.leap.bitmaskclient.base.models;
 
 import androidx.annotation.NonNull;
 
+import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.function.ToDoubleFunction;
 
 import de.blinkt.openvpn.core.connection.Connection;
+import de.blinkt.openvpn.core.connection.Connection.TransportType;
 
 public class Location implements Cloneable {
     @NonNull private String name = "";
-    @NonNull private HashMap<Connection.TransportType, Double> averageLoad = new HashMap<>();
-    @NonNull private HashMap<Connection.TransportType, Integer> numberOfGateways = new HashMap<>();
+    @NonNull private HashMap<TransportType, Double> averageLoad = new HashMap<>();
+    @NonNull private HashMap<TransportType, Integer> numberOfGateways = new HashMap<>();
     public boolean selected;
 
     public Location() {}
 
     public Location(@NonNull String name,
-                    @NonNull HashMap<Connection.TransportType, Double> averageLoad,
-                    @NonNull HashMap<Connection.TransportType, Integer> numberOfGateways,
+                    @NonNull HashMap<TransportType, Double> averageLoad,
+                    @NonNull HashMap<TransportType, Integer> numberOfGateways,
                     boolean selected) {
         this.name = name;
         this.averageLoad = averageLoad;
@@ -46,26 +49,26 @@ public class Location implements Cloneable {
         return !numberOfGateways.isEmpty() && !averageLoad.isEmpty() && !name.isEmpty();
     }
 
-    public boolean supportsTransport(Connection.TransportType transportType) {
+    public boolean supportsTransport(TransportType transportType) {
         return numberOfGateways.containsKey(transportType);
     }
 
-    public void setAverageLoad(Connection.TransportType transportType, double load) {
+    public void setAverageLoad(TransportType transportType, double load) {
         averageLoad.put(transportType, load);
     }
 
-    public double getAverageLoad(Connection.TransportType transportType) {
+    public double getAverageLoad(TransportType transportType) {
         if (averageLoad.containsKey(transportType)) {
             return averageLoad.get(transportType);
         }
         return 0;
     }
 
-    public void setNumberOfGateways(Connection.TransportType transportType, int numbers) {
+    public void setNumberOfGateways(TransportType transportType, int numbers) {
         numberOfGateways.put(transportType, numbers);
     }
 
-    public int getNumberOfGateways(Connection.TransportType transportType) {
+    public int getNumberOfGateways(TransportType transportType) {
         if (numberOfGateways.containsKey(transportType)) {
             return numberOfGateways.get(transportType);
         }
@@ -101,8 +104,26 @@ public class Location implements Cloneable {
     public Location clone() throws CloneNotSupportedException {
         Location copy = (Location) super.clone();
         copy.name = this.name;
-        copy.numberOfGateways = (HashMap<Connection.TransportType, Integer>) this.numberOfGateways.clone();
-        copy.averageLoad = (HashMap<Connection.TransportType, Double>) this.averageLoad.clone();
+        copy.numberOfGateways = (HashMap<TransportType, Integer>) this.numberOfGateways.clone();
+        copy.averageLoad = (HashMap<TransportType, Double>) this.averageLoad.clone();
         return copy;
     }
+
+    public static class SortByAverageLoad implements Comparator<Location> {
+        TransportType transportType;
+        public SortByAverageLoad(TransportType transportType) {
+            this.transportType = transportType;
+        }
+
+        @Override
+        public int compare(Location location1, Location location2) {
+            if (location1.supportsTransport(transportType) && location2.supportsTransport(transportType)) {
+                return (int) (location1.getAverageLoad(transportType) * 100) - (int) (location2.getAverageLoad(transportType) * 100);
+            } else if (location1.supportsTransport(transportType) && !location2.supportsTransport(transportType)) {
+                return -1;
+            } else {
+                return 1;
+            }
+        }
+    }
 }
-- 
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