Feature/add support for configuring safe withdrawal rate (#5679)

* Add support for configuring safe withdrawal rate

* Update changelog

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Added
+
+- Added support for configuring the safe withdrawal rate in the _FIRE_ section (experimental)
+
 ### Changed
 
 - Changed the _As seen in_ section on the landing page to an animated carousel

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

@@ -7,8 +7,10 @@ import { GfFireCalculatorComponent } from '@ghostfolio/ui/fire-calculator';
 import { GfPremiumIndicatorComponent } from '@ghostfolio/ui/premium-indicator';
 import { GfValueComponent } from '@ghostfolio/ui/value';
 
-import { NgStyle } from '@angular/common';
+import { CommonModule, NgStyle } from '@angular/common';
 import { ChangeDetectorRef, Component, OnDestroy, OnInit } from '@angular/core';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { FormControl } from '@angular/forms';
 import { Big } from 'big.js';
 import { DeviceDetectorService } from 'ngx-device-detector';
 import { NgxSkeletonLoaderModule } from 'ngx-skeleton-loader';
@@ -17,11 +19,14 @@ import { takeUntil } from 'rxjs/operators';
 
 @Component({
   imports: [
+    CommonModule,
+    FormsModule,
     GfFireCalculatorComponent,
     GfPremiumIndicatorComponent,
     GfValueComponent,
     NgStyle,
-    NgxSkeletonLoaderModule
+    NgxSkeletonLoaderModule,
+    ReactiveFormsModule
   ],
   selector: 'gf-fire-page',
   styleUrls: ['./fire-page.scss'],
@@ -33,6 +38,8 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
   public hasImpersonationId: boolean;
   public hasPermissionToUpdateUserSettings: boolean;
   public isLoading = false;
+  public safeWithdrawalRateControl = new FormControl<number>(undefined);
+  public safeWithdrawalRateOptions = [0.025, 0.03, 0.035, 0.04, 0.045];
   public user: User;
   public withdrawalRatePerMonth: Big;
   public withdrawalRatePerYear: Big;
@@ -70,11 +77,7 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
           };
         }
 
-        this.withdrawalRatePerYear = Big(
-          this.fireWealth.today.valueInBaseCurrency
-        ).mul(this.user.settings.safeWithdrawalRate);
-
-        this.withdrawalRatePerMonth = this.withdrawalRatePerYear.div(12);
+        this.calculateWithdrawalRates();
 
         this.isLoading = false;
 
@@ -88,6 +91,12 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
         this.hasImpersonationId = !!impersonationId;
       });
 
+    this.safeWithdrawalRateControl.valueChanges
+      .pipe(takeUntil(this.unsubscribeSubject))
+      .subscribe((value) => {
+        this.onSafeWithdrawalRateChange(Number(value));
+      });
+
     this.userService.stateChanged
       .pipe(takeUntil(this.unsubscribeSubject))
       .subscribe((state) => {
@@ -102,6 +111,13 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
                   permissions.updateUserSettings
                 );
 
+          this.safeWithdrawalRateControl.setValue(
+            this.user.settings.safeWithdrawalRate,
+            { emitEvent: false }
+          );
+
+          this.calculateWithdrawalRates();
+
           this.changeDetectorRef.markForCheck();
         }
       });
@@ -141,6 +157,25 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
           });
       });
   }
+
+  public onSafeWithdrawalRateChange(safeWithdrawalRate: number) {
+    this.dataService
+      .putUserSetting({ safeWithdrawalRate })
+      .pipe(takeUntil(this.unsubscribeSubject))
+      .subscribe(() => {
+        this.userService
+          .get(true)
+          .pipe(takeUntil(this.unsubscribeSubject))
+          .subscribe((user) => {
+            this.user = user;
+
+            this.calculateWithdrawalRates();
+
+            this.changeDetectorRef.markForCheck();
+          });
+      });
+  }
+
   public onSavingsRateChange(savingsRate: number) {
     this.dataService
       .putUserSetting({ savingsRate })
@@ -180,4 +215,14 @@ export class GfFirePageComponent implements OnDestroy, OnInit {
     this.unsubscribeSubject.next();
     this.unsubscribeSubject.complete();
   }
+
+  private calculateWithdrawalRates() {
+    if (this.fireWealth && this.user?.settings?.safeWithdrawalRate) {
+      this.withdrawalRatePerYear = new Big(
+        this.fireWealth.today.valueInBaseCurrency
+      ).mul(this.user.settings.safeWithdrawalRate);
+
+      this.withdrawalRatePerMonth = this.withdrawalRatePerYear.div(12);
+    }
+  }
 }

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

@@ -105,15 +105,32 @@
         </span>
         <ng-container>&nbsp;</ng-container>
         <ng-container i18n>and a safe withdrawal rate (SWR) of</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]="user?.settings?.safeWithdrawalRate" /></span
-        >.
+        @if (
+          !hasImpersonationId &&
+          hasPermissionToUpdateUserSettings &&
+          user?.settings?.isExperimentalFeatures
+        ) {
+          <select
+            class="border-0 cursor-pointer d-inline-block font-weight-bold safe-withdrawal-rate-select"
+            [formControl]="safeWithdrawalRateControl"
+          >
+            @for (rate of safeWithdrawalRateOptions; track rate) {
+              <option [value]="rate">
+                {{ rate | percent: '1.1-1' }}
+              </option>
+            }</select
+          >.
+        } @else {
+          <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]="user?.settings?.safeWithdrawalRate" /></span
+          >.
+        }
       </div>
     }
   </div>

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

@@ -1,3 +1,19 @@
 :host {
   display: block;
+
+  .safe-withdrawal-rate-select {
+    background-color: transparent;
+    color: rgb(var(--dark-primary-text));
+
+    &:focus {
+      box-shadow: none;
+      outline: 0;
+    }
+  }
+}
+
+:host-context(.theme-dark) {
+  .safe-withdrawal-rate-select {
+    color: rgb(var(--light-primary-text));
+  }
 }