Implement nick keep plugin.

nickkeep/src/com/dmdirc/addons/nickkeep/NickKeepManager.java

@@ -22,20 +22,63 @@
 
 package com.dmdirc.addons.nickkeep;
 
+import com.dmdirc.DMDircMBassador;
+import com.dmdirc.config.profiles.Profile;
+import com.dmdirc.events.ChannelNickChangeEvent;
+import com.dmdirc.interfaces.Connection;
+
+import java.util.Optional;
+
 import javax.inject.Inject;
 
+import net.engio.mbassy.listener.Handler;
+
 /**
  * Provides Nick Keep support in DMDirc.
  */
 public class NickKeepManager {
 
+    private final DMDircMBassador eventBus;
+
     @Inject
-    public NickKeepManager() {
+    public NickKeepManager(final DMDircMBassador eventBus) {
+        this.eventBus = eventBus;
     }
 
     public void load() {
+        eventBus.subscribe(this);
     }
 
     public void unload() {
+        eventBus.unsubscribe(this);
+    }
+
+    @Handler
+    public void handleNickChange(final ChannelNickChangeEvent event) {
+        final Optional<Connection> connection = event.getChannel().getConnection();
+        if (!connection.isPresent()) {
+            //No point carrying on without a connection
+            return;
+        }
+        final Optional<String> currentNickname = connection.map(Connection::getNickname)
+                .orElse(Optional.empty());
+        if (!currentNickname.isPresent()) {
+            //No point carrying on if we don't know our own nickname
+            return;
+        }
+        final Optional<String> desiredNickname = connection.map(Connection::getProfile)
+                .map(Profile::getNicknames).map(c -> c.stream().findFirst())
+                .orElse(Optional.empty());
+        if (!desiredNickname.isPresent()) {
+            //No point carrying on without a desired nickname
+            return;
+        }
+        if (!event.getOldNick().equals(desiredNickname.get())) {
+            //This isnt the nickname we're looking for, move along
+            return;
+        }
+        if (!currentNickname.equals(desiredNickname)) {
+            connection.ifPresent(c -> c.setNickname(desiredNickname.get()));
+        }
     }
 }

nickkeep/src/com/dmdirc/addons/nickkeep/NickKeepModule.java

@@ -23,7 +23,6 @@
 package com.dmdirc.addons.nickkeep;
 
 import com.dmdirc.ClientModule;
-import com.dmdirc.plugins.PluginInfo;
 
 import dagger.Module;
 
@@ -31,11 +30,4 @@ import dagger.Module;
  * Dagger injection module for the Nick Keep plugin
  */
 @Module(injects = NickKeepModule.class, addsTo = ClientModule.class)
-public class NickKeepModule {
-
-    private final PluginInfo pluginInfo;
-
-    public NickKeepModule(final PluginInfo pluginInfo) {
-        this.pluginInfo = pluginInfo;
-    }
-}
+public class NickKeepModule {}

nickkeep/src/com/dmdirc/addons/nickkeep/NickKeepPlugin.java

@@ -38,7 +38,7 @@ public class NickKeepPlugin extends BasePlugin {
     public void load(final PluginInfo pluginInfo, final ObjectGraph graph) {
         super.load(pluginInfo, graph);
 
-        setObjectGraph(graph.plus(new NickKeepModule(pluginInfo)));
+        setObjectGraph(graph.plus(new NickKeepModule()));
         manager = getObjectGraph().get(NickKeepManager.class);
     }
 

nickkeep/test/com/dmdirc/addons/nickkeep/NickKeepManagerTest.java

@@ -22,14 +22,92 @@
 
 package com.dmdirc.addons.nickkeep;
 
+import com.dmdirc.Channel;
+import com.dmdirc.DMDircMBassador;
+import com.dmdirc.config.profiles.Profile;
+import com.dmdirc.events.ChannelNickChangeEvent;
+import com.dmdirc.interfaces.Connection;
+
+import com.google.common.collect.Lists;
+
+import java.util.Optional;
+
 import org.junit.Before;
+import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.Mock;
 import org.mockito.runners.MockitoJUnitRunner;
 
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 @RunWith(MockitoJUnitRunner.class)
 public class NickKeepManagerTest {
 
+    @Mock private DMDircMBassador eventBus;
+    @Mock private ChannelNickChangeEvent event;
+    @Mock private Channel channel;
+    @Mock private Connection connection;
+    @Mock private Profile profile;
+    private NickKeepManager instance;
+
     @Before
     public void setUp() throws Exception {
+        instance = new NickKeepManager(eventBus);
+        when(event.getChannel()).thenReturn(channel);
+        when(channel.getConnection()).thenReturn(Optional.of(connection));
+        when(connection.getProfile()).thenReturn(profile);
+        when(profile.getNicknames()).thenReturn(Lists.newArrayList("one", "two", "three"));
+    }
+
+    @Test
+    public void testLoad() throws Exception {
+        instance.load();
+        verify(eventBus).subscribe(instance);
+    }
+
+    @Test
+    public void testUnload() throws Exception {
+        instance.unload();
+        verify(eventBus).unsubscribe(instance);
+    }
+
+    @Test
+    public void testHandleNickChange_NoConnection() throws Exception {
+        when(channel.getConnection()).thenReturn(Optional.empty());
+        instance.handleNickChange(event);
+        verify(connection, never()).setNickname("one");
+    }
+
+    @Test
+    public void testHandleNickChange_NoCurrentNickname() throws Exception {
+        when(connection.getNickname()).thenReturn(Optional.empty());
+        instance.handleNickChange(event);
+        verify(connection, never()).setNickname("one");
+    }
+
+    @Test
+    public void testHandleNickChange_NoNicknames() throws Exception {
+        when(profile.getNicknames()).thenReturn(Lists.newArrayList());
+        instance.handleNickChange(event);
+        verify(connection, never()).setNickname(anyString());
+    }
+
+    @Test
+    public void testHandleNickChange_NotDesired() throws Exception {
+        when(event.getOldNick()).thenReturn("RAR");
+        when(connection.getNickname()).thenReturn(Optional.of("one"));
+        instance.handleNickChange(event);
+        verify(connection, never()).setNickname("one");
+    }
+
+    @Test
+    public void testHandleNickChange_Desired() throws Exception {
+        when(event.getOldNick()).thenReturn("one");
+        when(connection.getNickname()).thenReturn(Optional.of("RAR"));
+        instance.handleNickChange(event);
+        verify(connection).setNickname("one");
     }
 }

nickkeep/test/com/dmdirc/addons/nickkeep/NickKeepPluginTest.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2006-2015 DMDirc Developers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.dmdirc.addons.nickkeep;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import static org.mockito.Mockito.verify;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NickKeepPluginTest {
+
+    @Mock private NickKeepManager nickKeepManager;
+    private NickKeepPlugin instance;
+
+    @Before
+    public void setUp() throws Exception {
+        instance = new NickKeepPlugin();
+    }
+
+    @Test
+    public void testOnLoad() throws Exception {
+        instance.onLoad();
+        verify(nickKeepManager).load();
+    }
+
+    @Test
+    public void testOnUnload() throws Exception {
+        instance.onUnload();
+        verify(nickKeepManager).unload();
+    }
+}