restruct: stock list components

src/utils/stockListUtils.ts

@@ -0,0 +1,38 @@
+import { useStore } from '../store';
+
+export const useStockListUtils = () => {
+  const store = useStore();
+
+  function removeStock(index: number) {
+    if (index == -1) return;
+
+    store.stockList = store.stockList.filter((stock, i) => i != index);
+
+    if (store.stockList.length < index + 1) store.chosenStockListIndex = -1;
+  }
+
+  function moveUpStock(index: number) {
+    if (index < 1) return;
+
+    const tempStock = store.stockList[index];
+
+    store.stockList[index] = store.stockList[index - 1];
+    store.stockList[index - 1] = tempStock;
+
+    store.chosenStockListIndex = index - 1;
+  }
+
+  function moveDownStock(index: number) {
+    if (index == -1) return;
+    if (index > store.stockList.length - 2) return;
+
+    const tempStock = store.stockList[index];
+
+    store.stockList[index] = store.stockList[index + 1];
+    store.stockList[index + 1] = tempStock;
+
+    store.chosenStockListIndex = index + 1;
+  }
+
+  return { removeStock, moveDownStock, moveUpStock };
+};