From 9fbc4e83837dbcdce3c5ba4f2825c95f3ea1de10 Mon Sep 17 00:00:00 2001
From: Maciej Lenartowicz <maciej.lenartowicz@nic.cz>
Date: Thu, 20 Feb 2020 14:30:28 +0100
Subject: [PATCH] Added date and time utilities.

---
 package-lock.json                    |  2 +-
 package.json                         |  2 +-
 src/index.js                         |  1 +
 src/testUtils/setup.js               |  2 +-
 src/utils/__tests__/datetime.test.js | 51 ++++++++++++++++++++++++++++
 src/utils/datetime.js                |  8 +++++
 6 files changed, 63 insertions(+), 3 deletions(-)
 create mode 100644 src/utils/__tests__/datetime.test.js
 create mode 100644 src/utils/datetime.js

diff --git a/package-lock.json b/package-lock.json
index 86e6b91..e9da0e7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "foris",
-  "version": "4.0.0",
+  "version": "4.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 59b19b5..7c52b40 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "foris",
-  "version": "4.0.0",
+  "version": "4.1.0",
   "description": "Set of components and utils for Foris and its plugins.",
   "author": "CZ.NIC, z.s.p.o.",
   "repository": {
diff --git a/src/index.js b/src/index.js
index afe60fa..727cfda 100644
--- a/src/index.js
+++ b/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";
diff --git a/src/testUtils/setup.js b/src/testUtils/setup.js
index 5aac2eb..4cc46dc 100644
--- a/src/testUtils/setup.js
+++ b/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();
diff --git a/src/utils/__tests__/datetime.test.js b/src/utils/__tests__/datetime.test.js
new file mode 100644
index 0000000..b59478a
--- /dev/null
+++ b/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");
+    });
+});
diff --git a/src/utils/datetime.js b/src/utils/datetime.js
new file mode 100644
index 0000000..f7e30b8
--- /dev/null
+++ b/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);
+}