chrone: sperate client and server to different repos.

src/hooks/stackableState.js

@@ -0,0 +1,36 @@
+import {useState} from 'react';
+
+const useStackableState = (initialState = []) => {
+  const [stackableState, setStackableState] = useState(initialState);
+
+  const indexState = (state) => stackableState.indexOf(state);
+  const hasState = (state) => indexState(state) !== -1;
+
+  const removeState = (state) => {
+    if (this.hasState(state)) {
+      const index = indexState(state);
+      const mutableState = [...stackableState];
+      mutableState.splice(index, 1);
+
+      setStackableState(mutableState);
+    }
+  };
+  const setState = (state) => {
+    if (!hasState(state)) {
+      setStackableState([
+        ...stackableState,
+        state,
+      ]);
+    }
+  };
+
+  return {
+    state: stackableState,
+    removeState,
+    indexState,
+    hasState,
+    setState,
+  };
+};
+
+export default useStackableState;