diff --git a/myteamwallet_frontend_modern/src/app/models/transaction-amount.spec.ts b/myteamwallet_frontend_modern/src/app/models/transaction-amount.spec.ts
index 0496c9b..737ee76 100644
--- a/myteamwallet_frontend_modern/src/app/models/transaction-amount.spec.ts
+++ b/myteamwallet_frontend_modern/src/app/models/transaction-amount.spec.ts
@@ -1,4 +1,50 @@
-import { signedTransactionAmount } from './transaction-amount';
+import { presentCashFlow, signedTransactionAmount } from './transaction-amount';
+
+describe('presentCashFlow', () => {
+ it.each([
+ {
+ amount: 12,
+ type: 0,
+ context: 'player' as const,
+ expected: { direction: 'inflow', amount: 12, sign: '+' },
+ },
+ {
+ amount: -12,
+ type: 'payment',
+ context: 'player' as const,
+ expected: { direction: 'outflow', amount: 12, sign: '−' },
+ },
+ {
+ amount: 8.5,
+ type: { id: 1, name: 'credit' },
+ context: 'team' as const,
+ expected: { direction: 'inflow', amount: 8.5, sign: '+' },
+ },
+ {
+ amount: 8.5,
+ type: { id: 14, name: 'expense' },
+ context: 'team' as const,
+ expected: { direction: 'outflow', amount: 8.5, sign: '−' },
+ },
+ {
+ amount: 7,
+ type: 'fine',
+ context: 'player' as const,
+ expected: { direction: 'neutral', amount: 7, sign: '' },
+ },
+ {
+ amount: -7,
+ type: 'unknown',
+ context: 'player' as const,
+ expected: { direction: 'neutral', amount: 7, sign: '' },
+ },
+ ])(
+ 'presents $context $type transactions with their cash-flow direction',
+ ({ amount, type, context, expected }) => {
+ expect(presentCashFlow(amount, type, context)).toEqual(expected);
+ },
+ );
+});
describe('signedTransactionAmount', () => {
it('shows debit transaction types as negative amounts', () => {
diff --git a/myteamwallet_frontend_modern/src/app/models/transaction-amount.ts b/myteamwallet_frontend_modern/src/app/models/transaction-amount.ts
index 3d1ec30..4ce424d 100644
--- a/myteamwallet_frontend_modern/src/app/models/transaction-amount.ts
+++ b/myteamwallet_frontend_modern/src/app/models/transaction-amount.ts
@@ -1,6 +1,15 @@
export type TransactionTypeLike =
string | number | { id?: number; name?: string } | null | undefined;
+export type CashFlowDirection = 'inflow' | 'outflow' | 'neutral';
+export type CashFlowContext = 'player' | 'team';
+
+export interface CashFlowPresentation {
+ direction: CashFlowDirection;
+ amount: number;
+ sign: '+' | '−' | '';
+}
+
const debitTypeNames = new Set(['fine', 'levy', 'fee', 'expense']);
export function signedTransactionAmount(amount: number, type: TransactionTypeLike): number {
@@ -10,3 +19,33 @@ export function signedTransactionAmount(amount: number, type: TransactionTypeLik
const isDebit = (typeId ?? 0) > 10 || debitTypeNames.has(typeName ?? '');
return isDebit ? -Math.abs(amount) : amount;
}
+
+export function presentCashFlow(
+ amount: number,
+ type: TransactionTypeLike,
+ context: CashFlowContext,
+): CashFlowPresentation {
+ const typeId = typeof type === 'number' ? type : typeof type === 'object' ? type?.id : undefined;
+ const typeName = (
+ typeof type === 'string' ? type : typeof type === 'object' ? type?.name : undefined
+ )
+ ?.trim()
+ .toLowerCase();
+
+ const direction =
+ context === 'player' && (typeId === 0 || typeName === 'payment')
+ ? amount < 0
+ ? 'outflow'
+ : 'inflow'
+ : context === 'team' && (typeId === 1 || typeName === 'credit')
+ ? 'inflow'
+ : context === 'team' && (typeId === 14 || typeName === 'expense')
+ ? 'outflow'
+ : 'neutral';
+
+ return {
+ direction,
+ amount: Math.abs(amount),
+ sign: direction === 'inflow' ? '+' : direction === 'outflow' ? '−' : '',
+ };
+}
diff --git a/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.html b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.html
new file mode 100644
index 0000000..b917de6
--- /dev/null
+++ b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.html
@@ -0,0 +1,9 @@
+
+ {{ presentation().sign }}
+ {{ presentation().amount | currency: 'EUR' }}
+
diff --git a/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.scss b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.scss
new file mode 100644
index 0000000..0d0774c
--- /dev/null
+++ b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.scss
@@ -0,0 +1,20 @@
+.transaction-amount {
+ font-variant-numeric: tabular-nums;
+
+ &.inflow {
+ color: var(--mat-sys-primary);
+ }
+
+ &.outflow {
+ color: var(--mat-sys-error);
+ }
+
+ &.neutral {
+ color: var(--mat-sys-on-surface-variant);
+ }
+}
+
+.transaction-amount__sign {
+ display: inline-block;
+ min-width: 0.8ch;
+}
diff --git a/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.spec.ts b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.spec.ts
new file mode 100644
index 0000000..e6cfc3a
--- /dev/null
+++ b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.spec.ts
@@ -0,0 +1,49 @@
+import { TestBed } from '@angular/core/testing';
+import { TransactionAmount } from './transaction-amount';
+
+describe('TransactionAmount', () => {
+ it.each([
+ {
+ amount: 12.5,
+ type: 'payment',
+ context: 'player' as const,
+ sign: '+',
+ semanticClass: 'inflow',
+ label: 'Einnahme',
+ },
+ {
+ amount: 12.5,
+ type: 'expense',
+ context: 'team' as const,
+ sign: '−',
+ semanticClass: 'outflow',
+ label: 'Ausgabe',
+ },
+ {
+ amount: 12.5,
+ type: 'fine',
+ context: 'player' as const,
+ sign: '',
+ semanticClass: 'neutral',
+ label: 'Neutraler Betrag',
+ },
+ ])(
+ 'renders the $semanticClass cash-flow meaning accessibly',
+ async ({ amount, type, context, sign, semanticClass, label }) => {
+ await TestBed.configureTestingModule({ imports: [TransactionAmount] }).compileComponents();
+ const fixture = TestBed.createComponent(TransactionAmount);
+ fixture.componentRef.setInput('amount', amount);
+ fixture.componentRef.setInput('type', type);
+ fixture.componentRef.setInput('context', context);
+ fixture.detectChanges();
+
+ const element = fixture.nativeElement.querySelector('[data-testid="transaction-amount"]');
+ const signElement = element.querySelector('.transaction-amount__sign');
+ expect(element.classList).toContain(semanticClass);
+ expect(signElement.textContent).toBe(sign);
+ expect(element.textContent).toContain('12,50');
+ expect(element.textContent).toContain('€');
+ expect(element.getAttribute('aria-label')).toBe(label);
+ },
+ );
+});
diff --git a/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.ts b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.ts
new file mode 100644
index 0000000..7ee87be
--- /dev/null
+++ b/myteamwallet_frontend_modern/src/app/shared/transaction-amount/transaction-amount.ts
@@ -0,0 +1,36 @@
+import { CurrencyPipe, registerLocaleData } from '@angular/common';
+import localeDe from '@angular/common/locales/de';
+import { Component, computed, input, LOCALE_ID } from '@angular/core';
+import {
+ CashFlowContext,
+ presentCashFlow,
+ TransactionTypeLike,
+} from '../../models/transaction-amount';
+
+registerLocaleData(localeDe);
+
+@Component({
+ selector: 'app-transaction-amount',
+ imports: [CurrencyPipe],
+ providers: [{ provide: LOCALE_ID, useValue: 'de-DE' }],
+ templateUrl: './transaction-amount.html',
+ styleUrl: './transaction-amount.scss',
+})
+export class TransactionAmount {
+ readonly amount = input.required();
+ readonly type = input.required();
+ readonly context = input.required();
+
+ protected readonly presentation = computed(() =>
+ presentCashFlow(this.amount(), this.type(), this.context()),
+ );
+
+ protected readonly directionLabel = computed(
+ () =>
+ ({
+ inflow: 'Einnahme',
+ outflow: 'Ausgabe',
+ neutral: 'Neutraler Betrag',
+ })[this.presentation().direction],
+ );
+}