Merge 392392f417 into ad243389b1

apps/client/src/app/pages/portfolio/fire/fire-page.component.ts

@@ -43,6 +43,10 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
   public user: User;
   public withdrawalRatePerMonth: Big;
   public withdrawalRatePerYear: Big;
+  public projectedWithdrawalRatePerMonth: Big;
+  public projectedWithdrawalRatePerYear: Big;
+  public projectedRetirementDate: Date;
+  public projectedAnnualInterestRate: number;
 
   private unsubscribeSubject = new Subject<void>();
 
@@ -211,6 +215,21 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
       });
   }
 
+  public onCalculationComplete(event: {
+    projectedTotalAmount: number;
+    retirementDate?: Date;
+    annualInterestRate: number;
+  }) {
+    if (event) {
+      this.projectedRetirementDate = event.retirementDate;
+      this.projectedAnnualInterestRate = event.annualInterestRate;
+
+      this.calculateProjectedWithdrawalRates(event.projectedTotalAmount);
+
+      this.changeDetectorRef.markForCheck();
+    }
+  }
+
   public ngOnDestroy() {
     this.unsubscribeSubject.next();
     this.unsubscribeSubject.complete();
@@ -225,4 +244,18 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
       this.withdrawalRatePerMonth = this.withdrawalRatePerYear.div(12);
     }
   }
+
+  private calculateProjectedWithdrawalRates(projectedTotalAmount: number) {
+    if (
+      projectedTotalAmount !== undefined &&
+      projectedTotalAmount !== null &&
+      this.user?.settings?.safeWithdrawalRate
+    ) {
+      this.projectedWithdrawalRatePerYear = new Big(projectedTotalAmount).mul(
+        this.user.settings.safeWithdrawalRate
+      );
+      this.projectedWithdrawalRatePerMonth =
+        this.projectedWithdrawalRatePerYear.div(12);
+    }
+  }
 }

apps/client/src/app/pages/portfolio/fire/fire-page.html

@@ -28,6 +28,7 @@
           [retirementDate]="user?.settings?.retirementDate"
           [savingsRate]="user?.settings?.savingsRate"
           (annualInterestRateChanged)="onAnnualInterestRateChange($event)"
+          (calculationComplete)="onCalculationComplete($event)"
           (projectedTotalAmountChanged)="onProjectedTotalAmountChange($event)"
           (retirementDateChanged)="onRetirementDateChange($event)"
           (savingsRateChanged)="onSavingsRateChange($event)"
@@ -131,6 +132,58 @@
               [value]="user?.settings?.safeWithdrawalRate" /></span
           >.
         }
+        @if (projectedRetirementDate) {
+          <div class="mt-2">
+            <ng-container i18n>By</ng-container>
+            <ng-container>&nbsp;</ng-container>
+            <span class="font-weight-bold"
+              >{{ projectedRetirementDate | date: 'MMMM yyyy' }}</span
+            >
+            <ng-container i18n
+              >, this is projected to increase to</ng-container
+            >
+            <ng-container>&nbsp;</ng-container>
+            <span class="font-weight-bold"
+              ><gf-value
+                class="d-inline-block"
+                [isCurrency]="true"
+                [locale]="user?.settings?.locale"
+                [unit]="user?.settings?.baseCurrency"
+                [value]="projectedWithdrawalRatePerYear?.toNumber()"
+              />
+              <ng-container>&nbsp;</ng-container>
+              <ng-container i18n>per year</ng-container></span
+            >
+            <ng-container>&nbsp;</ng-container>
+            <ng-container i18n>or</ng-container>
+            <ng-container>&nbsp;</ng-container>
+            <span class="font-weight-bold"
+              ><gf-value
+                class="d-inline-block"
+                [isCurrency]="true"
+                [locale]="user?.settings?.locale"
+                [unit]="user?.settings?.baseCurrency"
+                [value]="projectedWithdrawalRatePerMonth?.toNumber()"
+              />
+              <ng-container>&nbsp;</ng-container>
+              <ng-container i18n>per month</ng-container></span
+            >
+            <ng-container i18n>,</ng-container>
+            <ng-container>&nbsp;</ng-container>
+            <ng-container i18n>assuming a</ng-container>
+            <ng-container>&nbsp;</ng-container>
+            <span class="font-weight-bold"
+              ><gf-value
+                class="d-inline-block"
+                [isPercent]="true"
+                [locale]="user?.settings?.locale"
+                [precision]="1"
+                [value]="projectedAnnualInterestRate / 100" /></span
+            >
+            <ng-container>&nbsp;</ng-container>
+            <ng-container i18n>annual interest rate</ng-container>.
+          </div>
+        }
       </div>
     }
   </div>

libs/ui/src/lib/fire-calculator/fire-calculator.component.ts

@@ -17,6 +17,7 @@ import {
   OnChanges,
   OnDestroy,
   Output,
+  SimpleChanges,
   ViewChild
 } from '@angular/core';
 import {
@@ -91,6 +92,11 @@ export class GfFireCalculatorComponent implements OnChanges, OnDestroy {
   @Output() projectedTotalAmountChanged = new EventEmitter<number>();
   @Output() retirementDateChanged = new EventEmitter<Date>();
   @Output() savingsRateChanged = new EventEmitter<number>();
+  @Output() calculationComplete = new EventEmitter<{
+    projectedTotalAmount: number;
+    retirementDate: Date | undefined;
+    annualInterestRate: number;
+  }>();
 
   @ViewChild('chartCanvas') chartCanvas: ElementRef<HTMLCanvasElement>;
 
@@ -157,7 +163,7 @@ export class GfFireCalculatorComponent implements OnChanges, OnDestroy {
       });
   }
 
-  public ngOnChanges() {
+  public ngOnChanges(_changes?: SimpleChanges) {
     if (isNumber(this.fireWealth) && this.fireWealth >= 0) {
       this.calculatorForm.setValue(
         {
@@ -195,6 +201,9 @@ export class GfFireCalculatorComponent implements OnChanges, OnDestroy {
         );
         this.calculatorForm.get('principalInvestmentAmount').disable();
 
+        // Emit initial calculation payload
+        this.emitCalculationComplete();
+
         this.changeDetectorRef.markForCheck();
       });
     }
@@ -328,6 +337,9 @@ export class GfFireCalculatorComponent implements OnChanges, OnDestroy {
     }
 
     this.isLoading = false;
+
+    // Emit after (re)initialization to keep consumers updated
+    this.emitCalculationComplete();
   }
 
   private getChartData() {
@@ -345,7 +357,8 @@ export class GfFireCalculatorComponent implements OnChanges, OnDestroy {
 
     // Calculate retirement date
     // if we want to retire at month x, we need the projectedTotalAmount at month x-1
-    const lastPeriodDate = sub(this.getRetirementDate(), { months: 1 });
+    const safeRetirementDate = this.getRetirementDate() ?? this.DEFAULT_RETIREMENT_DATE;
+    const lastPeriodDate = sub(safeRetirementDate, { months: 1 });
     const yearsToRetire = lastPeriodDate.getFullYear() - currentYear;
 
     // Time
@@ -476,4 +489,18 @@ export class GfFireCalculatorComponent implements OnChanges, OnDestroy {
       })
     );
   }
+
+  private emitCalculationComplete() {
+    // Use current form values and calculated helpers
+    const projectedTotalAmount = Number(this.getProjectedTotalAmount());
+    const retirementDate = this.getRetirementDate();
+    const annualInterestRate = this.calculatorForm.get('annualInterestRate')
+      .value;
+
+    this.calculationComplete.emit({
+      projectedTotalAmount,
+      retirementDate,
+      annualInterestRate
+    });
+  }
 }