[js][bonus-02_explicit_method] Move premium clients to new method

Author: rgomezcasas

examples/js/js-bonus-02_explicit_method/src/DailyBonusPointsCalculator.js

@@ -4,17 +4,17 @@ export class DailyBonusPointsCalculator {
     PREMIUM_USER_WEEKS_MULTIPLIER = 1.5;
 
     calculate(consecutiveDays, isPremium = false) {
-        if (isPremium) {
-            const consecutiveWeeks = Math.floor(consecutiveDays / 7);
-            
-            let consecutiveWeeksMultiplier = 1;
-            if (consecutiveWeeks > 0) {
-                consecutiveWeeksMultiplier = Math.pow(this.PREMIUM_USER_WEEKS_MULTIPLIER, consecutiveWeeks);
-            }
-            
-            return consecutiveDays * this.PREMIUM_USER_POINTS_PER_DAY * consecutiveWeeksMultiplier;
-        } else {
             return consecutiveDays * this.NORMAL_USER_POINTS_PER_DAY;
+    }
+    
+    calculatePremium(consecutiveDays) {
+        const consecutiveWeeks = Math.floor(consecutiveDays / 7);
+        
+        let consecutiveWeeksMultiplier = 1;
+        if (consecutiveWeeks > 0) {
+            consecutiveWeeksMultiplier = Math.pow(this.PREMIUM_USER_WEEKS_MULTIPLIER, consecutiveWeeks);
         }
+        
+        return consecutiveDays * this.PREMIUM_USER_POINTS_PER_DAY * consecutiveWeeksMultiplier;
     }
 }

examples/js/js-bonus-02_explicit_method/tests/DailyBonusPointsCalculator.test.js

@@ -16,12 +16,12 @@ describe('DailyBonusPointsCalculator should', () => {
     it('Calculate points for a premium user on its first day', () => {
         const calculator = new DailyBonusPointsCalculator();
 
-        expect(calculator.calculate(1, true)).toBe(20);
+        expect(calculator.calculatePremium(1)).toBe(20);
     });
 
     it('Calculate points for a premium user on its second consecutive week', () => {
         const calculator = new DailyBonusPointsCalculator();
 
-        expect(calculator.calculate(14, true)).toBe(630);
+        expect(calculator.calculatePremium(14)).toBe(630);
     });
 });