Added date and time utilities.

src/index.js

@@ -64,6 +64,7 @@ export {
 } from "./utils/conditionalHOCs";
 export { ErrorMessage } from "./utils/ErrorMessage";
 export { useClickOutside } from "./utils/hooks";
+export { toLocaleDateString } from "./utils/datetime";
 
 // Foris URL
 export { ForisURLs, REFORIS_URL_PREFIX } from "./forisUrls";

src/testUtils/setup.js

@@ -17,7 +17,7 @@ global.afterEach(() => {
 global._ = (str) => str;
 global.ngettext = (str) => str;
 global.babel = { format: (str) => str };
-global.ForisTranslations = {};
+global.ForisTranslations = { locale: "en" };
 
 // Mock web sockets
 window.WebSocket = jest.fn();

src/utils/__tests__/datetime.test.js

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2019 CZ.NIC z.s.p.o. (http://www.nic.cz/)
+ *
+ * This is free software, licensed under the GNU General Public License v3.
+ * See /LICENSE for more information.
+ */
+
+import { toLocaleDateString } from "../datetime";
+
+describe("toLocaleDateString", () => {
+    it("should work with different locale", () => {
+        global.ForisTranslations = { locale: "fr" };
+        expect(
+            toLocaleDateString("2020-02-20T12:51:36+00:00")
+        ).toBe("20 février 2020 12:51");
+        global.ForisTranslations = { locale: "en" };
+    })
+
+    it("should convert with default format", () => {
+        expect(
+            toLocaleDateString("2020-02-20T12:51:36+00:00")
+        ).toBe("February 20, 2020 12:51 PM");
+    });
+
+    it("should convert with custom input format", () => {
+        expect(
+            toLocaleDateString(
+                "2020-02-20 12:51:36 +0000",
+                { inputFormat: "YYYY-MM-DD HH:mm:ss Z" },
+            )
+        ).toBe("February 20, 2020 12:51 PM");
+    });
+
+    it("should convert with custom output format", () => {
+        expect(
+            toLocaleDateString(
+                "2020-02-20T12:51:36+00:00",
+                { outputFormat: "LL" },
+            )
+        ).toBe("February 20, 2020");
+    });
+
+    it("should convert with custom input and output format", () => {
+        expect(
+            toLocaleDateString(
+                "2020-02-20 12:51:36 +0000",
+                { inputFormat: "YYYY-MM-DD HH:mm:ss Z", outputFormat: "LL" },
+            )
+        ).toBe("February 20, 2020");
+    });
+});

src/utils/datetime.js

@@ -0,0 +1,8 @@
+import moment from "moment";
+
+export function toLocaleDateString(date, { inputFormat, outputFormat = "LLL" } = {}) {
+    const parsedDate = inputFormat ? moment(date, inputFormat) : moment(date);
+    return parsedDate
+        .locale(ForisTranslations.locale)
+        .format(outputFormat);
+}