feat(slots): add slot machine component with styling and logic

frontend/src/app/feature/game/slots/slots.component.css

@@ -0,0 +1,28 @@
+/* Open button styling - Matches lootbox component style */
+.open-btn {
+  background: linear-gradient(90deg, #4338ca 0%, #8b5cf6 100%);
+  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
+  transition: all 0.2s ease;
+}
+.open-btn:hover {
+  background: linear-gradient(90deg, #4f46e5 0%, #a78bfa 100%);
+  transform: translateY(-2px);
+  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.3);
+}
+
+/* Symbol colors */
+.symbol-BAR {
+  color: var(--color-accent-yellow);
+}
+.symbol-SEVEN {
+  color: var(--color-accent-red);
+}
+.symbol-BELL {
+  color: var(--color-accent-purple);
+}
+.symbol-CHERRY {
+  color: #ec4899;
+}
+.symbol-LEMON {
+  color: #a3e635;
+}

frontend/src/app/feature/game/slots/slots.component.html

@@ -1,40 +1,66 @@
 <app-navbar></app-navbar>
 
-<div>
-  <h2>Payouts</h2>
-  @if (slotInfo(); as info) {
-    <table>
-      <tbody>
-        @for (item of info | keyvalue; track item.key) {
-          <tr>
-            <td>{{ item.key }}</td>
-            <td>{{ item.value }}</td>
-          </tr>
-        }
-      </tbody>
-    </table>
-  }
+<div class="container mx-auto px-4 py-6 space-y-8">
+  <h1 class="text-3xl font-bold text-white mb-6">Spielautomaten</h1>
 
-  <div>
-    <div class="grid grid-cols-3 gap-1">
+  <div class="grid grid-cols-1 lg:grid-cols-4 gap-6">
+    <!-- Slot Machine Display -->
+    <div class="lg:col-span-3 space-y-6 flex flex-col">
+      <div class="card">
+        <!-- Slot Machine Top -->
+        <div class="p-6">
+          <div class="flex items-center justify-between">
+            <h2 class="text-xl font-bold text-white">Slot Machine</h2>
+            <div
+              [ngClass]="{
+                'bg-emerald': slotResult().status === 'win',
+                'bg-accent-red': slotResult().status === 'lose',
+                'bg-deep-blue-light': slotResult().status === 'start',
+              }"
+              class="px-3 py-1 rounded-full text-sm font-semibold"
+            >
+              <span class="text-white">
+                {{
+                  slotResult().status === 'win'
+                    ? 'Gewonnen!'
+                    : slotResult().status === 'lose'
+                      ? 'Verloren'
+                      : 'Bereit'
+                }}
+              </span>
+            </div>
+          </div>
+        </div>
+
+        <!-- Slot Display -->
+        <div class="p-6">
+          <div class="bg-deep-blue-light rounded-lg p-4 shadow-inner mb-6">
+            <div class="grid grid-cols-3 gap-3">
               @for (row of slotResult().resultMatrix; track $index) {
                 @for (cell of row; track $index) {
-          <div class="text-center">{{ cell }}</div>
+                  <div
+                    class="bg-deep-blue-contrast rounded-lg shadow-md p-2 flex items-center justify-center"
+                  >
+                    <span class="text-2xl font-bold" [ngClass]="getSymbolClass(cell)">{{
+                      cell
+                    }}</span>
+                  </div>
                 }
               }
             </div>
-
-    <div>
-      <p>
-        Game result: <strong>{{ slotResult().status | uppercase }}</strong>
-      </p>
-      <p>
-        Amount: <strong>{{ slotResult().amount }}</strong>
-      </p>
           </div>
 
-    <div>
-      <label for="betAmount">Bet Amount: </label>
+          <!-- Game Result -->
+          <div class="text-center mb-6" *ngIf="slotResult().status === 'win'">
+            <div class="text-emerald text-xl font-bold">
+              +{{ slotResult().amount | currency: 'EUR' }}
+            </div>
+          </div>
+
+          <!-- Controls -->
+          <div class="flex flex-col sm:flex-row gap-4 items-center justify-center">
+            <div class="flex items-center bg-deep-blue-light rounded-lg p-2 flex-1">
+              <label for="betAmount" class="text-text-secondary mr-3">Einsatz:</label>
               <input
                 id="betAmount"
                 type="number"
@@ -42,9 +68,111 @@
                 (ngModelChange)="betAmount.set($event)"
                 step="0.01"
                 min="0.01"
+                class="w-full bg-deep-blue-light text-white focus:outline-none focus:ring-1 focus:ring-emerald"
               />
             </div>
 
-    <button (click)="spin()">SPIN</button>
+            <button
+              (click)="spin()"
+              class="px-4 py-1.5 font-bold rounded"
+              [ngClass]="{
+                'open-btn': hasEnoughBalance(),
+                'bg-gray-500 cursor-not-allowed': !hasEnoughBalance(),
+              }"
+              [disabled]="isSpinning || !hasEnoughBalance()"
+            >
+              @if (!isSpinning) {
+                <span>{{ hasEnoughBalance() ? 'SPIN' : 'Nicht genug Guthaben' }}</span>
+              } @else {
+                <div
+                  class="w-6 h-6 border-2 border-white border-t-transparent rounded-full animate-spin"
+                ></div>
+              }
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Game Info Panel -->
+    <div class="lg:col-span-1">
+      <div class="card p-4">
+        <h3 class="section-heading text-xl mb-4">Spiel Informationen</h3>
+        <div class="space-y-4">
+          <div class="flex justify-between items-center">
+            <span class="text-text-secondary">Kontostand:</span>
+            <span class="text-emerald">
+              <app-animated-number [value]="balance()" [duration]="0.5"></app-animated-number>
+            </span>
+          </div>
+          <div class="flex justify-between items-center">
+            <span class="text-text-secondary">Einsatz:</span>
+            <span [class]="betAmount() > 0 ? 'text-accent-red' : 'text-text-secondary'">
+              <app-animated-number [value]="betAmount()" [duration]="0.5"></app-animated-number>
+            </span>
+          </div>
+
+          <div class="grid grid-cols-2 gap-2 mb-4">
+            <button
+              (click)="setBetAmount(0.1)"
+              class="button-primary py-2 text-sm"
+              [disabled]="isSpinning"
+            >
+              10%
+            </button>
+            <button
+              (click)="setBetAmount(0.25)"
+              class="button-primary py-2 text-sm"
+              [disabled]="isSpinning"
+            >
+              25%
+            </button>
+            <button
+              (click)="setBetAmount(0.5)"
+              class="button-primary py-2 text-sm"
+              [disabled]="isSpinning"
+            >
+              50%
+            </button>
+            <button
+              (click)="setBetAmount(1)"
+              class="button-primary py-2 text-sm"
+              [disabled]="isSpinning"
+            >
+              100%
+            </button>
+          </div>
+
+          <h3 class="text-lg font-semibold text-white mb-2">Auszahlungen:</h3>
+
+          @if (slotInfo(); as info) {
+            <ul class="space-y-1">
+              @for (item of info | keyvalue; track item.key) {
+                <li class="flex justify-between items-center py-1 border-b border-deep-blue-light">
+                  <div class="bg-deep-blue-contrast px-2 py-1 rounded text-center w-12">
+                    <span [ngClass]="getSymbolClass(item.key)">{{ item.key }}</span>
+                  </div>
+                  <span class="text-emerald">{{ item.value }}x</span>
+                </li>
+              }
+            </ul>
+          } @else {
+            <div class="flex justify-center py-4">
+              <div
+                class="w-4 h-4 border-2 border-deep-blue-contrast border-t-emerald rounded-full animate-spin"
+              ></div>
+            </div>
+          }
+
+          <div class="mt-4 pt-2">
+            <h4 class="text-sm font-semibold text-white mb-2">Spielregeln:</h4>
+            <ul class="text-text-secondary text-xs space-y-1">
+              <li>• Gewinne mit 3 gleichen Symbolen</li>
+              <li>• Höhere Symbole = höhere Gewinne</li>
+            </ul>
+          </div>
+        </div>
+      </div>
+    </div>
   </div>
 </div>

frontend/src/app/feature/game/slots/slots.component.ts

@@ -1,8 +1,18 @@
-import { ChangeDetectionStrategy, Component, inject, OnInit, signal } from '@angular/core';
+import {
+  ChangeDetectionStrategy,
+  Component,
+  inject,
+  OnInit,
+  OnDestroy,
+  signal,
+} from '@angular/core';
 import { NavbarComponent } from '@shared/components/navbar/navbar.component';
 import { HttpClient } from '@angular/common/http';
-import { KeyValuePipe, NgClass, UpperCasePipe } from '@angular/common';
+import { CommonModule, KeyValuePipe, NgClass, CurrencyPipe } from '@angular/common';
 import { FormsModule } from '@angular/forms';
+import { UserService } from '@service/user.service';
+import { Subscription } from 'rxjs';
+import { AnimatedNumberComponent } from '@blackjack/components/animated-number/animated-number.component';
 
 interface SlotResult {
   status: 'win' | 'lose' | 'blank' | 'start';
@@ -13,12 +23,24 @@ interface SlotResult {
 @Component({
   selector: 'app-slots',
   standalone: true,
-  imports: [NavbarComponent, KeyValuePipe, UpperCasePipe, NgClass, FormsModule],
+  imports: [
+    CommonModule,
+    NavbarComponent,
+    KeyValuePipe,
+    NgClass,
+    FormsModule,
+    CurrencyPipe,
+    AnimatedNumberComponent,
+  ],
   templateUrl: './slots.component.html',
+  styleUrl: './slots.component.css',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export default class SlotsComponent implements OnInit {
+export default class SlotsComponent implements OnInit, OnDestroy {
   private httpClient: HttpClient = inject(HttpClient);
+  private userService = inject(UserService);
+  private userSubscription: Subscription | undefined;
+
   slotInfo = signal<Record<string, number> | null>(null);
   slotResult = signal<SlotResult>({
     status: 'start',
@@ -29,21 +51,77 @@ export default class SlotsComponent implements OnInit {
       ['BELL', 'BELL', 'BELL'],
     ],
   });
+
+  balance = signal<number>(0);
   betAmount = signal<number>(1);
+  isSpinning = false;
 
   ngOnInit(): void {
     this.httpClient.get<Record<string, number>>('/backend/slots/info').subscribe((data) => {
       this.slotInfo.set(data);
     });
+
+    this.userSubscription = this.userService.currentUser$.subscribe((user) => {
+      this.balance.set(user?.balance ?? 0);
+    });
+
+    this.userService.refreshCurrentUser();
+  }
+
+  ngOnDestroy(): void {
+    if (this.userSubscription) {
+      this.userSubscription.unsubscribe();
+    }
+  }
+
+  getSymbolClass(symbol: string): string {
+    return `symbol-${symbol}`;
+  }
+
+  hasEnoughBalance(): boolean {
+    return this.balance() >= this.betAmount();
+  }
+
+  setBetAmount(percentage: number): void {
+    const calculatedBet = Math.floor(this.balance() * percentage * 100) / 100;
+    const minimumBet = 0.01;
+
+    const newBet = Math.max(minimumBet, Math.min(calculatedBet, this.balance()));
+
+    this.betAmount.set(newBet);
   }
 
   spin(): void {
+    if (!this.hasEnoughBalance()) {
+      return;
+    }
+
+    this.isSpinning = true;
+    const betAmount = this.betAmount();
+
+    this.userService.updateLocalBalance(-betAmount);
+
     const payload = {
-      betAmount: this.betAmount(),
+      betAmount: betAmount,
     };
 
-    this.httpClient.post<SlotResult>('/backend/slots/spin', payload).subscribe((result) => {
+    this.httpClient.post<SlotResult>('/backend/slots/spin', payload).subscribe({
+      next: (result) => {
+        setTimeout(() => {
           this.slotResult.set(result);
+
+          if (result.status === 'win') {
+            this.userService.updateLocalBalance(result.amount);
+          }
+
+          this.isSpinning = false;
+        }, 1500);
+      },
+      error: (err) => {
+        console.error('Error spinning slot machine:', err);
+        this.userService.updateLocalBalance(betAmount);
+        this.isSpinning = false;
+      },
     });
   }
 }