From a3e491e300acdcf3d38e679098843401ecc0774a Mon Sep 17 00:00:00 2001
From: Thomas Kaul <4159106+dtslvr@users.noreply.github.com>
Date: Sun, 2 Aug 2026 10:12:58 +0200
Subject: [PATCH] Add hidden tab to manage the splits of an asset profile

---
 .../asset-profile-dialog.component.ts         |  71 +++++++++++-
 .../asset-profile-dialog.html                 | 108 ++++++++++++++++++
 libs/ui/src/lib/services/admin.service.ts     |  24 +++-
 libs/ui/src/lib/services/data.service.ts      |   4 +
 4 files changed, 203 insertions(+), 4 deletions(-)

diff --git a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
index 330688da18..026f676e7c 100644
--- a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
+++ b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
@@ -11,6 +11,7 @@ import {
   DATE_FORMAT,
   getCountryName,
   getCurrencyFromSymbol,
+  getDateFormatString,
   getStringOrNull,
   getStringOrUndefined,
   isCurrency
@@ -63,6 +64,7 @@ import {
   MatCheckboxChange,
   MatCheckboxModule
 } from '@angular/material/checkbox';
+import { MatDatepickerModule } from '@angular/material/datepicker';
 import {
   MAT_DIALOG_DATA,
   MatDialogModule,
@@ -76,6 +78,7 @@ import { MatTabsModule } from '@angular/material/tabs';
 import { IonIcon } from '@ionic/angular/standalone';
 import {
   AssetClass,
+  AssetProfileSplit,
   AssetSubClass,
   DataGatheringFrequency,
   DataSource,
@@ -88,11 +91,14 @@ import { format } from 'date-fns';
 import { StatusCodes } from 'http-status-codes';
 import { addIcons } from 'ionicons';
 import {
+  calendarClearOutline,
   codeSlashOutline,
   createOutline,
   ellipsisVertical,
+  gitCompareOutline,
   readerOutline,
-  serverOutline
+  serverOutline,
+  trashOutline
 } from 'ionicons/icons';
 import { isBoolean } from 'lodash';
 import ms from 'ms';
@@ -116,6 +122,7 @@ import { AssetProfileDialogParams } from './interfaces/interfaces';
     IonIcon,
     MatButtonModule,
     MatCheckboxModule,
+    MatDatepickerModule,
     MatDialogModule,
     MatInputModule,
     MatMenuModule,
@@ -196,6 +203,18 @@ export class GfAssetProfileDialogComponent implements OnInit {
     }
   );
 
+  protected readonly assetProfileSplitForm = this.formBuilder.group({
+    date: new FormControl<Date | null>(null, Validators.required),
+    factor: new FormControl<number | null>(null, [
+      Validators.required,
+      (control: AbstractControl): ValidationErrors | null => {
+        return control.value > 0 && control.value !== 1
+          ? null
+          : { invalidSplitFactor: true };
+      }
+    ])
+  });
+
   protected readonly canDeleteAssetProfile = canDeleteAssetProfile;
   protected canEditAssetProfile = true;
 
@@ -247,11 +266,17 @@ export class GfAssetProfileDialogComponent implements OnInit {
       value: 'max'
     }
   ];
+  protected defaultDateFormat: string;
   protected readonly getCountryName = getCountryName;
   protected historicalDataItems: LineChartItem[];
   protected isBenchmark = false;
   protected isDataGatheringEnabled: boolean;
   protected isEditAssetProfileIdentifierMode = false;
+
+  // Splits are not applied to the portfolio calculation yet, hence the tab to
+  // manage them is hidden
+  protected readonly isSplitsTabEnabled = false;
+
   protected readonly isUUID = isUUID;
   protected marketDataItems: MarketData[] = [];
 
@@ -270,6 +295,8 @@ export class GfAssetProfileDialogComponent implements OnInit {
     [name: string]: { name: string; value: number };
   };
 
+  protected splits: AssetProfileSplit[] = [];
+
   protected readonly translate = translate;
 
   protected user: User;
@@ -293,11 +320,14 @@ export class GfAssetProfileDialogComponent implements OnInit {
     private userService: UserService
   ) {
     addIcons({
+      calendarClearOutline,
       codeSlashOutline,
       createOutline,
       ellipsisVertical,
+      gitCompareOutline,
       readerOutline,
-      serverOutline
+      serverOutline,
+      trashOutline
     });
   }
 
@@ -310,6 +340,7 @@ export class GfAssetProfileDialogComponent implements OnInit {
 
     this.benchmarks = benchmarks;
     this.currencies = currencies;
+    this.defaultDateFormat = getDateFormatString(this.data.locale);
 
     this.initialize();
   }
@@ -364,8 +395,9 @@ export class GfAssetProfileDialogComponent implements OnInit {
         symbol: this.data.symbol
       })
       .pipe(takeUntilDestroyed(this.destroyRef))
-      .subscribe(({ assetProfile, marketData }) => {
+      .subscribe(({ assetProfile, marketData, splits }) => {
         this.assetProfile = assetProfile;
+        this.splits = splits ?? [];
 
         this.assetClassLabel = translate(this.assetProfile?.assetClass ?? '');
         this.assetSubClassLabel = translate(
@@ -521,6 +553,39 @@ export class GfAssetProfileDialogComponent implements OnInit {
       .subscribe();
   }
 
+  protected onAddSplit() {
+    const { date, factor } = this.assetProfileSplitForm.getRawValue();
+
+    this.adminService
+      .postAssetProfileSplit({
+        dataSource: this.data.dataSource,
+        split: {
+          factor,
+          date: format(date, DATE_FORMAT)
+        },
+        symbol: this.data.symbol
+      })
+      .pipe(takeUntilDestroyed(this.destroyRef))
+      .subscribe(() => {
+        this.assetProfileSplitForm.reset();
+
+        this.initialize();
+      });
+  }
+
+  protected onDeleteSplit(aId: string) {
+    this.adminService
+      .deleteAssetProfileSplit({
+        id: aId,
+        dataSource: this.data.dataSource,
+        symbol: this.data.symbol
+      })
+      .pipe(takeUntilDestroyed(this.destroyRef))
+      .subscribe(() => {
+        this.initialize();
+      });
+  }
+
   protected onMarketDataChanged(withRefresh: boolean = false) {
     if (withRefresh) {
       this.initialize();
diff --git a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html
index f0b914b1cc..c9a16ceb05 100644
--- a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html
+++ b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.html
@@ -503,6 +503,114 @@
           </div>
         </div>
       </mat-tab>
+      @if (isSplitsTabEnabled) {
+        <mat-tab>
+          <ng-template mat-tab-label>
+            <ion-icon name="git-compare-outline" />
+            <div class="d-none d-sm-block ml-2" i18n>Splits</div>
+          </ng-template>
+          <div class="container mt-3 p-0">
+            <div class="no-gutters row w-100">
+              <div class="col-12">
+                <p class="text-muted" i18n>
+                  Splits are stored for this asset profile, but are not applied
+                  to the portfolio calculation yet.
+                </p>
+                @if (splits.length > 0) {
+                  <table class="gf-table mb-3 w-100">
+                    <thead>
+                      <tr class="mat-mdc-header-row">
+                        <th class="mat-mdc-header-cell px-1 py-2" i18n>Date</th>
+                        <th
+                          class="mat-mdc-header-cell px-1 py-2 text-right"
+                          i18n
+                        >
+                          Split Factor
+                        </th>
+                        <th class="mat-mdc-header-cell px-1 py-2"></th>
+                      </tr>
+                    </thead>
+                    <tbody>
+                      @for (split of splits; track split.id) {
+                        <tr class="mat-mdc-row">
+                          <td class="mat-mdc-cell px-1 py-2">
+                            {{ split.date | date: defaultDateFormat }}
+                          </td>
+                          <td class="mat-mdc-cell px-1 py-2 text-right">
+                            {{ split.factor }}
+                          </td>
+                          <td class="mat-mdc-cell px-1 py-2 text-right">
+                            <button
+                              mat-icon-button
+                              type="button"
+                              [disabled]="!canEditAssetProfile"
+                              (click)="onDeleteSplit(split.id)"
+                            >
+                              <ion-icon name="trash-outline" />
+                            </button>
+                          </td>
+                        </tr>
+                      }
+                    </tbody>
+                  </table>
+                }
+                <form
+                  class="align-items-center d-flex"
+                  [formGroup]="assetProfileSplitForm"
+                  (ngSubmit)="onAddSplit()"
+                >
+                  <mat-form-field
+                    appearance="outline"
+                    class="mr-3 without-hint"
+                  >
+                    <mat-label i18n>Date</mat-label>
+                    <input
+                      formControlName="date"
+                      matInput
+                      [matDatepicker]="dateOfSplit"
+                    />
+                    <mat-datepicker-toggle
+                      class="mr-2"
+                      matSuffix
+                      [for]="dateOfSplit"
+                    >
+                      <ion-icon
+                        class="text-muted"
+                        matDatepickerToggleIcon
+                        name="calendar-clear-outline"
+                      />
+                    </mat-datepicker-toggle>
+                    <mat-datepicker #dateOfSplit />
+                  </mat-form-field>
+                  <mat-form-field appearance="outline" class="mr-3">
+                    <mat-label i18n>Split Factor</mat-label>
+                    <input
+                      formControlName="factor"
+                      matInput
+                      step="any"
+                      type="number"
+                    />
+                    <mat-hint i18n
+                      >Shares after per 1 share before, e.g. 4 for a 4:1 split
+                      or 0.1 for a 1:10 reverse split</mat-hint
+                    >
+                  </mat-form-field>
+                  <button
+                    color="primary"
+                    mat-flat-button
+                    type="submit"
+                    [disabled]="
+                      !assetProfileSplitForm.valid || !canEditAssetProfile
+                    "
+                  >
+                    <ng-container i18n>Add</ng-container>
+                  </button>
+                </form>
+              </div>
+            </div>
+          </div>
+        </mat-tab>
+      }
       @if (assetProfile?.dataSource === 'MANUAL') {
         <mat-tab>
           <ng-template mat-tab-label>
diff --git a/libs/ui/src/lib/services/admin.service.ts b/libs/ui/src/lib/services/admin.service.ts
index 6a06ef76b7..8510f1729f 100644
--- a/libs/ui/src/lib/services/admin.service.ts
+++ b/libs/ui/src/lib/services/admin.service.ts
@@ -4,6 +4,7 @@ import {
   HEADER_KEY_TOKEN
 } from '@ghostfolio/common/config';
 import {
+  CreateAssetProfileSplitDto,
   CreatePlatformDto,
   UpdateAssetProfileDto,
   UpdatePlatformDto
@@ -23,7 +24,7 @@ import { GF_ENVIRONMENT } from '@ghostfolio/ui/environment';
 
 import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
 import { Injectable, inject } from '@angular/core';
-import { MarketData, Platform } from '@prisma/client';
+import { AssetProfileSplit, MarketData, Platform } from '@prisma/client';
 import { JobStatus } from 'bull';
 import { isNumber } from 'lodash';
 
@@ -61,6 +62,16 @@ export class AdminService {
     return this.http.delete<void>(`/api/v1/platform/${aId}`);
   }
 
+  public deleteAssetProfileSplit({
+    dataSource,
+    id,
+    symbol
+  }: AssetProfileIdentifier & { id: string }) {
+    return this.http.delete<void>(
+      `/api/v1/asset-profiles/${dataSource}/${encodeURIComponent(symbol)}/splits/${id}`
+    );
+  }
+
   public deleteProfileData({ dataSource, symbol }: AssetProfileIdentifier) {
     return this.http.delete<void>(
       `/api/v1/admin/profile-data/${dataSource}/${encodeURIComponent(symbol)}`
@@ -217,6 +228,17 @@ export class AdminService {
     );
   }
 
+  public postAssetProfileSplit({
+    dataSource,
+    split,
+    symbol
+  }: AssetProfileIdentifier & { split: CreateAssetProfileSplitDto }) {
+    return this.http.post<AssetProfileSplit>(
+      `/api/v1/asset-profiles/${dataSource}/${encodeURIComponent(symbol)}/splits`,
+      split
+    );
+  }
+
   public postPlatform(aPlatform: CreatePlatformDto) {
     return this.http.post<Platform>(`/api/v1/platform`, aPlatform);
   }
diff --git a/libs/ui/src/lib/services/data.service.ts b/libs/ui/src/lib/services/data.service.ts
index bc1512550b..7ccd9d1d9e 100644
--- a/libs/ui/src/lib/services/data.service.ts
+++ b/libs/ui/src/lib/services/data.service.ts
@@ -589,6 +589,10 @@ export class DataService {
             item.date = parseISO(item.date);
           }
 
+          for (const item of data.splits ?? []) {
+            item.date = parseISO(item.date);
+          }
+
           return data;
         })
       );