Server returns query data, bar chart, styling charts

2023-08-03 00:03:48 +03:00
parent cf57669830
commit b887317c6b
11 changed files with 295 additions and 96 deletions
@@ -0,0 +1,30 @@
+import moment from "moment";
+
+export function formatDateString(str: string): string {
+    const date = moment(new Date(str));
+    switch (str.length) {
+      // year: 2023
+      case 4: return date.format("yyyy");
+      // year-month: 2023-06
+      case 7: return date.format("yyyy-MM");
+      // year-month-day: 2023-06-23
+      case 10: return date.format("yyyy-MM-DD");
+      // year-month-day hour:minute 2023-06-23T23:59
+      default: return date.format("HH:mm");
+    }
+}
+
+export interface DataQuery {
+  cities: string[];
+  field: string;
+  granularity: string;
+  key: string;
+}
+
+export function isDataQuery(variable: any): variable is DataQuery {
+  return variable && 
+      Array.isArray(variable.cities) && 
+      typeof variable.field === 'string' && 
+      typeof variable.granularity === 'string' &&
+      typeof variable.key === 'string';
+}