setup admin context

Signed-off-by: shmck <shawn.j.mckay@gmail.com>

Author: ShMcK

web-app/src/services/admin/index.tsx

@@ -0,0 +1,35 @@
+import * as React from 'react'
+
+type Props = {
+  children: React.ReactElement
+}
+
+type State = {
+  adminMode: boolean
+}
+
+type Action = { type: 'ADMIN_MODE_ON' | 'ADMIN_MODE_OFF' }
+
+const AdminContext = React.createContext<{ state: State; dispatch: (action: Action) => void }>({
+  state: { adminMode: false },
+  dispatch: () => {},
+})
+
+export const AdminProvider = (props: Props) => {
+  const [state, dispatch] = React.useReducer(
+    (state: State, action: Action) => {
+      switch (action.type) {
+        case 'ADMIN_MODE_ON':
+          return { ...state, adminMode: true }
+        case 'ADMIN_MODE_OFF':
+          return { ...state, adminMode: false }
+        default:
+          throw new Error()
+      }
+    },
+    { adminMode: false },
+  )
+  return <AdminContext.Provider value={{ state, dispatch }}>{props.children}</AdminContext.Provider>
+}
+
+export const AdminConsumer = AdminContext.Consumer