WIP

client/src/store/financialStatement/financialStatements.selectors.js

@@ -1,6 +1,49 @@
 import {getObjectDiff} from 'utils';
 
 
+// Financial Statements selectors.
+
+/**
+ * Retrieve financial statement sheet by the given query.
+ * @param {array} sheets 
+ * @param {object} query 
+ */
+export const getFinancialSheetIndexByQuery = (sheets, query) => {
+  return sheets.findIndex(balanceSheet => (
+    getObjectDiff(query, balanceSheet.query).length === 0
+  ));
+};
+
+/**
+ * Retrieve financial statement sheet by the given sheet index.
+ * @param {array} sheets 
+ * @param {number} index 
+ */
+export const getFinancialSheet = (sheets, index) => {
+  return (typeof sheets[index] !== 'undefined') ? sheets[index] : null;
+};
+
+/**
+ * Retrieve financial statement columns by the given sheet index.
+ * @param {array} sheets 
+ * @param {number} index 
+ */
+export const getFinancialSheetColumns = (sheets, index) => {
+  const sheet = getFinancialSheet(sheets, index);
+  return (sheet && sheet.columns) ? sheet.columns : [];
+};
+
+/**
+ * Retrieve financial statement query by the given sheet index.
+ * @param {array} sheets 
+ * @param {number} index 
+ */
+export const getFinancialSheetsQuery = (sheets, index) => {
+  const sheet = getFinancialSheet(sheets, index);
+  return (sheet && sheet.query) ? sheet.columns : {};
+};
+
+
 // Balance Sheet.
 export const getBalanceSheetByQuery = (balanceSheets, query) => {
   return balanceSheets.find(balanceSheet => {