From e51164f922e69f2f77aa66d681d8c69258636e84 Mon Sep 17 00:00:00 2001
From: Daniel Jun Suguimoto <danielsuguimoto@gmail.com>
Date: Thu, 20 Aug 2020 19:06:26 -0300
Subject: [PATCH] feat: Adding max and min functions

---
 src/index.js                 | 16 +++++++++++
 test/unit/timecode.static.js | 52 ++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)

diff --git a/src/index.js b/src/index.js
index 14ab495..a47fbc5 100644
--- a/src/index.js
+++ b/src/index.js
@@ -189,4 +189,20 @@ SMPTE.isFramerateSupported = function (framerate) {
     return SMPTE.supportedFrameRates.includes(framerate);
 };
 
+/**
+ * Gets the maximum timecode
+ * @param {Array.<SMPTE>} args List of timecode objects
+ */
+SMPTE.max = function (...args) {
+    return args.reduce((max, timecode) => timecode.frameCount > max.frameCount ? timecode : max);
+};
+
+/**
+ * Gets the minimum timecode
+ * @param {Array.<SMPTE>} args List of timecode objects
+ */
+SMPTE.min = function (...args) {
+    return args.reduce((min, timecode) => timecode.frameCount < min.frameCount ? timecode : min);
+};
+
 export default SMPTE;
diff --git a/test/unit/timecode.static.js b/test/unit/timecode.static.js
index 3f9215c..9ac2016 100644
--- a/test/unit/timecode.static.js
+++ b/test/unit/timecode.static.js
@@ -258,4 +258,56 @@ describe('SMPTE', function () {
                 .to.equal(new SMPTE(timecode, FrameRate.FR_60).frameCount);
         });
     });
+
+    describe('.max()', function () {
+        it('should properly return the maximum timecode', function () {
+            const timecodeList = [
+                new SMPTE('00:00:03:00'),
+                new SMPTE('01:20:01:15'),
+                new SMPTE('00:00:05:10'),
+                new SMPTE('00:01:12:13'),
+                new SMPTE('00:00:00:10'),
+            ];
+
+            expect(SMPTE.max(...timecodeList).toString()).to.equal('01:20:01:15');
+        });
+
+        it('should properly return the maximum timecode (multiple framerate)', function () {
+            const timecodeList = [
+                new SMPTE('00:00:03:00', FrameRate.FR_30),
+                new SMPTE('01:20:01:15', FrameRate.FR_59_94),
+                new SMPTE('00:00:05:10', FrameRate.FR_25),
+                new SMPTE('00:01:12;13', FrameRate.FR_29_97, true),
+                new SMPTE('00:00:00:10', FrameRate.FR_24),
+            ];
+
+            expect(SMPTE.max(...timecodeList).toString()).to.equal('01:20:01:15');
+        });
+    });
+
+    describe('.min()', function () {
+        it('should properly return the minimum timecode', function () {
+            const timecodeList = [
+                new SMPTE('00:00:03:00'),
+                new SMPTE('01:20:01:15'),
+                new SMPTE('00:00:05:10'),
+                new SMPTE('00:01:12:13'),
+                new SMPTE('00:00:00:10'),
+            ];
+
+            expect(SMPTE.min(...timecodeList).toString()).to.equal('00:00:00:10');
+        });
+
+        it('should properly return the minimum timecode (multiple framerate)', function () {
+            const timecodeList = [
+                new SMPTE('00:00:03:00', FrameRate.FR_30),
+                new SMPTE('01:20:01:15', FrameRate.FR_59_94),
+                new SMPTE('00:00:05:10', FrameRate.FR_25),
+                new SMPTE('00:01:12;13', FrameRate.FR_29_97, true),
+                new SMPTE('00:00:00:10', FrameRate.FR_24),
+            ];
+
+            expect(SMPTE.min(...timecodeList).toString()).to.equal('00:00:00:10');
+        });
+    });
 });