From 0c6e49aedc107a6586e7c8951389f233302e9cc4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Bure=C5=A1?= <michal.ezop@gmail.com>
Date: Tue, 16 Apr 2019 09:37:23 +0200
Subject: [PATCH] Add diff in days

---
 package.json                       |  2 +-
 src/validObjects/ValidDate.test.ts | 16 ++++++++++++++++
 src/validObjects/ValidDate.ts      |  4 ++++
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 2de5ff0..53c960d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "valid-objects-ts",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "main": ".dist/index.js",
   "types": ".dist/index.d.ts",
   "repository": "git@github.com:Travelport-Czech/valid-objects-ts.git",
diff --git a/src/validObjects/ValidDate.test.ts b/src/validObjects/ValidDate.test.ts
index a35cd63..89613e7 100644
--- a/src/validObjects/ValidDate.test.ts
+++ b/src/validObjects/ValidDate.test.ts
@@ -17,4 +17,20 @@ describe('ValidDate', () => {
 
     expect(JSON.stringify(data)).to.eq('{"date":"2018-12-24"}')
   })
+
+  it('Diff in days', () => {
+    const date = new ValidDate('2018-12-24')
+
+    const date1 = new ValidDate('2018-12-24')
+    expect(date.diffInDays(date1)).to.equal(0)
+
+    const date2 = new ValidDate('2018-12-23')
+    expect(date.diffInDays(date2)).to.equal(1)
+
+    const date3 = new ValidDate('2018-12-25')
+    expect(date.diffInDays(date3)).to.equal(-1)
+
+    const date4 = new ValidDate('2017-12-24')
+    expect(date.diffInDays(date4)).to.equal(365)
+  })
 })
diff --git a/src/validObjects/ValidDate.ts b/src/validObjects/ValidDate.ts
index 438b4cb..da17c4c 100644
--- a/src/validObjects/ValidDate.ts
+++ b/src/validObjects/ValidDate.ts
@@ -69,6 +69,10 @@ export class ValidDate {
     )
   }
 
+  public readonly diffInDays = (date: ValidDate): number => {
+    return this.moment().diff(date.moment(), 'days')
+  }
+
   public readonly formatToSystem = (): string => {
     return this.moment().format(formatSystemDate)
   }