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client/src/js/reducers/privateChats.js

@@ -0,0 +1,29 @@
+import { Set, Map } from 'immutable';
+import createReducer from '../util/createReducer';
+import * as actions from '../actions';
+
+function open(state, server, nick) {
+  return state.update(server, Set(), chats => chats.add(nick));
+}
+
+export default createReducer(Map(), {
+  [actions.OPEN_PRIVATE_CHAT](state, action) {
+    return open(state, action.server, action.nick);
+  },
+
+  [actions.CLOSE_PRIVATE_CHAT](state, action) {
+    return state.update(action.server, chats => chats.delete(action.nick));
+  },
+
+  [actions.SOCKET_PM](state, action) {
+    if (action.from.indexOf('.') === -1) {
+      return open(state, action.server, action.from);
+    }
+
+    return state;
+  },
+
+  [actions.DISCONNECT](state, action) {
+    return state.delete(action.server);
+  }
+});