WEB-693: Implement Date and Datetime Global Variables (#3123)

Signed-off-by: DeathGun44 <krishnamewara841@gmail.com>

src/app/core/utils/dates.spec.ts

@@ -0,0 +1,102 @@
+import { TestBed } from '@angular/core/testing';
+import { DatePipe } from '@angular/common';
+import { Dates } from './dates';
+
+describe('Dates', () => {
+  let service: Dates;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [
+        Dates,
+        DatePipe
+      ]
+    });
+    service = TestBed.inject(Dates);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+
+  describe('angularToMomentFormat', () => {
+    it('should convert dd/MM/yyyy to DD/MM/YYYY', () => {
+      expect(service.angularToMomentFormat('dd/MM/yyyy')).toBe('DD/MM/YYYY');
+    });
+
+    it('should convert d MMMM yy to D MMMM YY', () => {
+      expect(service.angularToMomentFormat('d MMMM yy')).toBe('D MMMM YY');
+    });
+
+    it('should convert yyyy-MM-dd HH:mm:ss to YYYY-MM-DD HH:mm:ss', () => {
+      expect(service.angularToMomentFormat('yyyy-MM-dd HH:mm:ss')).toBe('YYYY-MM-DD HH:mm:ss');
+    });
+
+    it('should handle single characters d/M/y to D/M/Y', () => {
+      expect(service.angularToMomentFormat('d/M/y')).toBe('D/M/Y');
+    });
+
+    it('should preserve other characters like HH:mm a to HH:mm A', () => {
+      expect(service.angularToMomentFormat('HH:mm a')).toBe('HH:mm A');
+    });
+
+    it('should convert dd MMMM yyyy to DD MMMM YYYY', () => {
+      expect(service.angularToMomentFormat('dd MMMM yyyy')).toBe('DD MMMM YYYY');
+    });
+
+    it('should convert all y variants: y, yy, yyy, yyyy', () => {
+      expect(service.angularToMomentFormat('y')).toBe('Y');
+      expect(service.angularToMomentFormat('yy')).toBe('YY');
+      expect(service.angularToMomentFormat('yyy')).toBe('YYY');
+      expect(service.angularToMomentFormat('yyyy')).toBe('YYYY');
+    });
+
+    it('should convert all d variants: d, dd', () => {
+      expect(service.angularToMomentFormat('d')).toBe('D');
+      expect(service.angularToMomentFormat('dd')).toBe('DD');
+    });
+
+    it('should handle complex format with all patterns', () => {
+      expect(service.angularToMomentFormat('dd-MM-yyyy HH:mm:ss a')).toBe('DD-MM-YYYY HH:mm:ss A');
+    });
+
+    it('should preserve MM (month) unchanged', () => {
+      expect(service.angularToMomentFormat('MM')).toBe('MM');
+    });
+
+    it('should preserve time components HH, mm, ss unchanged', () => {
+      expect(service.angularToMomentFormat('HH:mm:ss')).toBe('HH:mm:ss');
+    });
+
+    describe('App-Supported Formats', () => {
+      const formats = [
+        // HH:mm:ss variants
+        { angular: 'dd MMMM yyyy HH:mm:ss', moment: 'DD MMMM YYYY HH:mm:ss' },
+        { angular: 'dd/MMMM/yyyy HH:mm:ss', moment: 'DD/MMMM/YYYY HH:mm:ss' },
+        { angular: 'dd-MMMM-yyyy HH:mm:ss', moment: 'DD-MMMM-YYYY HH:mm:ss' },
+        { angular: 'dd-MM-yy HH:mm:ss', moment: 'DD-MM-YY HH:mm:ss' },
+        { angular: 'MMMM-dd-yyyy HH:mm:ss', moment: 'MMMM-DD-YYYY HH:mm:ss' },
+        { angular: 'MMMM dd yyyy HH:mm:ss', moment: 'MMMM DD YYYY HH:mm:ss' },
+        { angular: 'MMMM/dd/yyyy HH:mm:ss', moment: 'MMMM/DD/YYYY HH:mm:ss' },
+        { angular: 'MM-dd-yy HH:mm:ss', moment: 'MM-DD-YY HH:mm:ss' },
+        { angular: 'yyyy-MM-dd HH:mm:ss', moment: 'YYYY-MM-DD HH:mm:ss' },
+        // HH:mm variants
+        { angular: 'dd MMMM yyyy HH:mm', moment: 'DD MMMM YYYY HH:mm' },
+        { angular: 'dd/MMMM/yyyy HH:mm', moment: 'DD/MMMM/YYYY HH:mm' },
+        { angular: 'dd-MMMM-yyyy HH:mm', moment: 'DD-MMMM-YYYY HH:mm' },
+        { angular: 'dd-MM-yy HH:mm', moment: 'DD-MM-YY HH:mm' },
+        { angular: 'MMMM-dd-yyyy HH:mm', moment: 'MMMM-DD-YYYY HH:mm' },
+        { angular: 'MMMM dd yyyy HH:mm', moment: 'MMMM DD YYYY HH:mm' },
+        { angular: 'MMMM/dd/yyyy HH:mm', moment: 'MMMM/DD/YYYY HH:mm' },
+        { angular: 'MM-dd-yy HH:mm', moment: 'MM-DD-YY HH:mm' },
+        { angular: 'yyyy-MM-dd HH:mm', moment: 'YYYY-MM-DD HH:mm' }
+      ];
+
+      formats.forEach((f) => {
+        it(`should convert "${f.angular}" to "${f.moment}"`, () => {
+          expect(service.angularToMomentFormat(f.angular)).toBe(f.moment);
+        });
+      });
+    });
+  });
+});

src/app/core/utils/dates.ts

@@ -29,10 +29,21 @@ export class Dates {
   }
 
   public formatDateAsString(value: Date, dateFormat: string): string {
-    const momentFormat = dateFormat.replace(/y/g, 'Y').replace(/d/g, 'D').replace(/a/g, 'A');
+    const momentFormat = this.angularToMomentFormat(dateFormat);
     return moment(value).format(momentFormat);
   }
 
+  public angularToMomentFormat(angularFormat: string): string {
+    return angularFormat.replace(/y/g, 'Y').replace(/d/g, 'D').replace(/a/g, 'A');
+  }
+
+  public getMomentLocale(language?: { code: string }): string {
+    const langCode = language?.code;
+    if (!langCode) return 'en';
+    if (langCode.includes('-')) return langCode.split('-')[0];
+    return langCode;
+  }
+
   public parseDate(value: any): Date {
     if (value instanceof Array) {
       return moment(value.join('-'), 'YYYY-MM-DD').toDate();
@@ -46,7 +57,7 @@ export class Dates {
   }
 
   public convertToDate(value: any, format: string): Date {
-    const momentFormat = format.replace(/y/g, 'Y').replace(/d/g, 'D').replace(/a/g, 'A');
+    const momentFormat = this.angularToMomentFormat(format);
     return moment(value, momentFormat).toDate();
   }