1 files changed, 30 insertions, 0 deletions
diff --git a/src/client/react/store/selectors.js b/src/client/react/store/selectors.js
new file mode 100644
index 0000000..8264cdb
--- /dev/null
+++ b/src/client/react/store/selectors.js
@@ -0,0 +1,30 @@
+import moment from 'moment';
+import queryString from 'query-string';
+import purifyWeek from '../lib/purifyWeek';
+import users from '../users';
+
+export function selectUser(store) {
+  const { location } = store.router;
+  const match = location.pathname.match(/^\/([stcr])\/([-0-9a-zA-Z]+)/);
+  if (!match) return null;
+
+  const user = `${match[1]}/${match[2]}`;
+  if (!users.allIds.includes(user)) return null;
+
+  return user;
+}
+
+export function selectCurrentWeek(store) {
+  return moment(store.now).week();
+}
+
+export function selectWeek(store) {
+  const { location } = store.router;
+  const weekStr = queryString.parse(location.search).week;
+
+  if (!weekStr) {
+    return selectCurrentWeek(store);
+  }
+
+  return purifyWeek(parseInt(weekStr, 10));
+}