1 files changed, 28 insertions, 0 deletions
diff --git a/frontend/src/reducers/current-ids.js b/frontend/src/reducers/current-ids.js
new file mode 100644
index 00000000..4e16630d
--- /dev/null
+++ b/frontend/src/reducers/current-ids.js
@@ -0,0 +1,28 @@
+import { OPEN_EXPERIMENT_SUCCEEDED } from "../actions/experiments";
+import { OPEN_SIMULATION_SUCCEEDED } from "../actions/simulations";
+import {
+  RESET_CURRENT_DATACENTER,
+  SET_CURRENT_DATACENTER
+} from "../actions/topology/building";
+
+export function currentDatacenterId(state = -1, action) {
+  switch (action.type) {
+    case SET_CURRENT_DATACENTER:
+      return action.datacenterId;
+    case RESET_CURRENT_DATACENTER:
+      return -1;
+    default:
+      return state;
+  }
+}
+
+export function currentSimulationId(state = -1, action) {
+  switch (action.type) {
+    case OPEN_SIMULATION_SUCCEEDED:
+      return action.id;
+    case OPEN_EXPERIMENT_SUCCEEDED:
+      return action.simulationId;
+    default:
+      return state;
+  }
+}