fix: adding second utility.

packages/easy/src/index.ts

@@ -110,6 +110,7 @@ export * from './utils/Log';
 export * from './utils/Mapper';
 export * from './utils/Promise';
 export * from './utils/Property';
+export * from './utils/Seconds';
 export * from './utils/State';
 export * from './utils/Sentence';
 export * from './utils/Traverse';

packages/easy/src/utils/Seconds.ts

@@ -0,0 +1,24 @@
+import { ifTrue } from './If';
+import { toList } from '../types/List';
+
+export const second = {
+  toDuration: (s: number) => {
+    const seconds = s % 60;
+    const minutes = Math.floor(s / 60) % 60;
+    const hours = Math.floor(s / 3600) % 24;
+    const days = Math.floor(s / 86400);
+    return { days, hours, minutes, seconds };
+  },
+
+  toText: (s: number) => {
+    const { days, hours, minutes, seconds } = second.toDuration(s);
+    return toList(
+      ifTrue(days, d => `${d}d`),
+      ifTrue(hours, h => `${h}h`),
+      ifTrue(minutes, m => `${m}m`),
+      ifTrue(days + hours + minutes === 0, `${seconds}s`)
+    )
+      .mapDefined(s => s)
+      .join(' ');
+  },
+};

packages/easy/test/utils/Seconds.test.ts

@@ -0,0 +1,27 @@
+import { second } from '../../src';
+
+describe('Seconds', () => {
+  const { toDuration } = second;
+
+  test('split', () => {
+    expect(toDuration(0)).toEqual({ days: 0, hours: 0, minutes: 0, seconds: 0 });
+    expect(toDuration(1)).toEqual({ days: 0, hours: 0, minutes: 0, seconds: 1 });
+    expect(toDuration(60)).toEqual({ days: 0, hours: 0, minutes: 1, seconds: 0 });
+    expect(toDuration(3600)).toEqual({ days: 0, hours: 1, minutes: 0, seconds: 0 });
+    expect(toDuration(86400)).toEqual({ days: 1, hours: 0, minutes: 0, seconds: 0 });
+    expect(toDuration(86401)).toEqual({ days: 1, hours: 0, minutes: 0, seconds: 1 });
+    expect(toDuration(86461)).toEqual({ days: 1, hours: 0, minutes: 1, seconds: 1 });
+    expect(toDuration(90061)).toEqual({ days: 1, hours: 1, minutes: 1, seconds: 1 });
+  });
+
+  test('toText', () => {
+    expect(second.toText(0)).toBe('0s');
+    expect(second.toText(1)).toBe('1s');
+    expect(second.toText(60)).toBe('1m');
+    expect(second.toText(3600)).toBe('1h');
+    expect(second.toText(86400)).toBe('1d');
+    expect(second.toText(86401)).toBe('1d');
+    expect(second.toText(86461)).toBe('1d 1m');
+    expect(second.toText(90061)).toBe('1d 1h 1m');
+  });
+});