- implementing immutable.js

app/selectors/items.js

@@ -0,0 +1,42 @@
+import { createSelector } from 'reselect';
+
+//import { getItemsIdsWithNoBids, getMyBidItemIds, getMyWinningItemIds } from './auctions.js';
+
+const getState = (state) => state;
+
+export const getItem = (state, itemId) => state.getIn(['items', itemId], false);
+
+export const getItems = createSelector(
+  [getState],
+  (state) => state.get('items') || new Map(),
+);
+
+export const getItemsAsList = createSelector(
+  [getItems],
+  (itemsAsMap) => itemsAsMap.toList(),
+);
+
+export const getAuctionItems = createSelector(
+  [getState],
+  (state) => state.get('items').filter(i => i.type === 'auction') || new Map(),
+);
+
+export const getAuctionItemsAsList = createSelector(
+  [getAuctionItems],
+  (auctionItemsAsMap) => auctionItemsAsMap.toList(),
+);
+
+export const getTicketItems = createSelector(
+  [getState],
+  (state) => state.get('items').filter(i => i.type === 'ticket') || new Map(),
+);
+
+export const getTicketItemsAsList = createSelector(
+  [getTicketItems],
+  (ticketItemsAsMap) => ticketItemsAsMap.toList(),
+);
+
+export const getAuctionItemsWithNoBids = createSelector(
+  [getAuctionItems],
+  (auctionItemsAsMap) => auctionItemsAsMap.filter(i => i.bidCount),
+);