From 33ac6ac60f0c4b1e4d5dda7765916a4db265cd85 Mon Sep 17 00:00:00 2001
From: nanov <mitko.n@gmail.com>
Date: Wed, 6 Nov 2019 16:51:59 +0200
Subject: [PATCH 1/3] feat: implement date handling  and formatting

---
 lib/utils.js | 34 +++++++++++++++++++++++++++++++---
 1 file changed, 31 insertions(+), 3 deletions(-)

diff --git a/lib/utils.js b/lib/utils.js
index 3390ead..85e7431 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -1,18 +1,46 @@
 'use strict';
 
+const prefixNumber = (n) => {
+	if (n < 10)
+		return `0${n}`;
+	return n.toString();
+};
+
+const date = {
+	getDateObject(d = Date.now()) {
+		const dateObject = new Date(d);
+		// eslint-disable-next-line no-restricted-globals
+		if (isNaN(dateObject))
+			throw new Error(`${d} is invalid date.`);
+		return dateObject;
+	},
+	toISODate(d = Date.now(), utc = true) {
+		const t = date.getDateObject(d);
+		if (utc)
+			return `${t.getUTCFullYear()}-${prefixNumber(t.getUTCMonth() + 1)}-${prefixNumber(t.getUTCDate())}`;
+		return `${t.getFullYear()}-${prefixNumber(t.getMonth() + 1)}-${prefixNumber(t.getDate())}`;
+	},
+	toISOTime(d = Date.now(), utc = true) {
+		const t = date.getDateObject(d);
+		if (utc)
+			return `${prefixNumber(t.getUTCHours())}:${prefixNumber(t.getUTCMinutes())}:${prefixNumber(t.getUTCSeconds())}`;
+		return `${prefixNumber(t.getHours())}:${prefixNumber(t.getMinutes())}:${prefixNumber(t.getSeconds())}`;
+	},
+};
+
 const dateRange = (start, end) => {
 	if (start && end)
 		return {
 			DateRange: {
-				Start: start,
-				End: end,
+				Start: date.toISODate(start),
+				End: date.toISODate(end),
 			},
 		};
 
 	return {};
 };
 
-
 module.exports = {
 	dateRange,
+	date,
 };

From 2a17ff6056e7300c637c2337ec73ce15fa5d7528 Mon Sep 17 00:00:00 2001
From: nanov <mitko.n@gmail.com>
Date: Wed, 6 Nov 2019 16:52:20 +0200
Subject: [PATCH 2/3] chore: write tests for date range

---
 test/unit/utils.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 test/unit/utils.js

diff --git a/test/unit/utils.js b/test/unit/utils.js
new file mode 100644
index 0000000..19eaf72
--- /dev/null
+++ b/test/unit/utils.js
@@ -0,0 +1,29 @@
+'use strict';
+
+/* eslint-env node, mocha */
+
+const { assert } = require('chai');
+
+const utils = require('../../lib/utils');
+
+describe('utils', () => {
+	describe('dateRange', () => {
+		describe('dateRange', () => {
+			it('should generate empty object with partial parameters', () => {
+				assert.isEmpty(utils.dateRange());
+			});
+			it('should throw with invalid date', () => {
+				assert.throws(() => utils.dateRange('2018-15-15', '2018-20-20'));
+			});
+			it('should work for valid string input', () => {
+				assert.containsAllDeepKeys(utils.dateRange('2018-01-15', '2018-01-20'), { DateRange: { Start: '2018-01-15', End: '2018-01-20' } });
+			});
+			it('should work for Date string input', () => {
+				assert.containsAllDeepKeys(utils.dateRange(new Date('2018-01-15'), new Date('2018-01-20')), { DateRange: { Start: '2018-01-15', End: '2018-01-20' } });
+			});
+			it('should work for timestamp string input', () => {
+				assert.containsAllDeepKeys(utils.dateRange(new Date('2018-01-15').getTime(), new Date('2018-01-20').getTime()), { DateRange: { Start: '2018-01-15', End: '2018-01-20' } });
+			});
+		});
+	});
+});

From df9c33041184dd9f0e57c9245d361cef6d8a85e1 Mon Sep 17 00:00:00 2001
From: nanov <mitko.n@gmail.com>
Date: Wed, 6 Nov 2019 16:52:31 +0200
Subject: [PATCH 3/3] feat: drop moment dependency

---
 lib/BankLetter.js | 6 +++---
 package.json      | 1 -
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/BankLetter.js b/lib/BankLetter.js
index 5c77a3b..8a7bae6 100644
--- a/lib/BankLetter.js
+++ b/lib/BankLetter.js
@@ -2,15 +2,15 @@
 
 const fs = require('fs');
 
-const moment = require('moment');
 const handlebars = require('handlebars');
 const Crypto = require('./crypto/Crypto');
+const { date } = require('./utils.js');
 // const BN = require('bn.js');
 
 const registerHelpers = () => {
-	handlebars.registerHelper('today', () => moment().format('DD.MM.YYYY'));
+	handlebars.registerHelper('today', () => date.toISODate(Date.now(), false));
 
-	handlebars.registerHelper('now', () => moment().format('HH:mm:ss'));
+	handlebars.registerHelper('now', () => date.toISOTime(Date.now(), false));
 
 	handlebars.registerHelper('keyExponentBits', k => Buffer.byteLength(k.e()) * 8);
 
diff --git a/package.json b/package.json
index 3c08956..1abbeaa 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,6 @@
 		"bn.js": "^5.0.0",
 		"handlebars": "^4.4.3",
 		"js2xmlparser": "^4.0.0",
-		"moment": "^2.24.0",
 		"node-forge": "^0.9.1",
 		"request": "^2.88.0",
 		"uuid": "^3.3.3",