update: icon mechanic

backend/Dockerfile

@@ -5,6 +5,10 @@ WORKDIR /app
 
 # Copy go.mod and go.sum files to download dependencies
 COPY go.mod go.sum ./
+
+# Install the C compiler (gcc) and other build tools needed for CGO
+RUN apk add --no-cache build-base
+
 RUN go mod download
 
 # Copy the rest of the application source code

frontend/Dockerfile

@@ -26,7 +26,7 @@ COPY nginx.conf /etc/nginx/conf.d/default.conf
 
 # Copy the built application from the builder stage to Nginx's web root directory
 # I am assuming the project name is 'dashboard'. If not, you may need to change the path 'dist/dashboard/browser'.
-COPY --from=builder /app/dist/frontend /usr/share/nginx/html
+COPY --from=builder /app/dist/frontend/browser/. /usr/share/nginx/html
 
 # Expose port 80 for the web server
 EXPOSE 80

frontend/src/app/components/home/home.html

@@ -1,17 +1,25 @@
-<div class="card-container">
+<div class="card-container" *ngIf="items$ | async as items">
-  <div *ngIf="items$ | async as items">
+  <a *ngFor="let item of items" [href]="item.target" target="_blank" rel="noopener noreferrer" class="card-link">
-    <a *ngFor="let item of items" [href]="item.target" target="_blank" rel="noopener noreferrer" class="card-link">
+    <mat-card class="item-card">
-      <mat-card class="item-card">
+      <mat-card-content>
-        <mat-card-header>
+        <div class="card-content">
-          <div class="card-header-content">
+          <!-- Material Icon wenn iconUrl ein Material Icon Name ist -->
-            <img *ngIf="item.iconUrl && !imgErrorMap.get(item.id); else defaultIcon" mat-card-avatar [src]="item.iconUrl" (error)="onImgError(item.id)">
+          <mat-icon *ngIf="isMaterialIcon(item.iconUrl)" class="card-icon material-icon">{{ item.iconUrl }}</mat-icon>
+          
+          <!-- Custom Image URL wenn nicht Material Icon -->
+          <ng-container *ngIf="!isMaterialIcon(item.iconUrl)">
+            <img *ngIf="item.iconUrl && !imgErrorMap.get(item.id); else defaultIcon" 
+                 class="card-icon" 
+                 [src]="item.iconUrl" 
+                 (error)="onImgError(item.id)">
             <ng-template #defaultIcon>
-              <mat-icon mat-card-avatar class="default-avatar-icon">dashboard</mat-icon>
+              <mat-icon class="card-icon default-avatar-icon">dashboard</mat-icon>
             </ng-template>
-            <mat-card-title>{{ item.displayName }}</mat-card-title>
+          </ng-container>
-          </div>
+          
-        </mat-card-header>
+          <span class="card-title">{{ item.displayName }}</span>
-      </mat-card>
+        </div>
-    </a>
+      </mat-card-content>
-  </div>
+    </mat-card>
+  </a>
 </div>

frontend/src/app/components/home/home.scss

@@ -1,45 +1,60 @@
 .card-container {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
+  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
-  gap: 20px;
+  gap: 32px;
-  padding: 20px;
+  padding: 32px;
 }
 
 .card-link {
   text-decoration: none;
   color: inherit;
+  display: block;
 }
 
 .item-card {
   cursor: pointer;
   transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
+  height: 100%;
 }
 
 .item-card:hover {
   transform: translateY(-5px);
-  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
+  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
 }
 
-// Custom flex container inside the header
+.card-content {
-.card-header-content {
   display: flex;
-  align-items: center; // Revert to center alignment
+  align-items: center;
-  width: 100%;
+  gap: 16px;
-  height: 64px; // Give the container a fixed height
+  padding: 8px 0;
 }
 
-// Remove margin from the title and add padding for spacing
+.card-icon {
-.card-header-content .mat-card-title {
+  width: 48px;
-  margin: 0;
+  height: 48px;
-  padding-left: 16px;
+  border-radius: 8px;
+  object-fit: cover;
+  flex-shrink: 0;
+  
+  &.material-icon {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    font-size: 48px;
+    color: #1976d2;
+  }
 }
 
+.card-title {
+  font-size: 1.1rem;
+  font-weight: 500;
+  line-height: 1.4;
+}
 
 .default-avatar-icon {
-  // Vertically align the icon in the avatar space
   display: flex;
   justify-content: center;
   align-items: center;
-  width: 40px;
+  font-size: 32px;
-  height: 40px;
+  color: #666;
 }

frontend/src/app/components/home/home.spec.ts

@@ -1,18 +1,18 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
-import { Home } from './home';
+import { HomeComponent } from './home';
 
-describe('Home', () => {
+describe('HomeComponent', () => {
-  let component: Home;
+  let component: HomeComponent;
-  let fixture: ComponentFixture<Home>;
+  let fixture: ComponentFixture<HomeComponent>;
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [Home]
+      imports: [HomeComponent]
     })
     .compileComponents();
 
-    fixture = TestBed.createComponent(Home);
+    fixture = TestBed.createComponent(HomeComponent);
     component = fixture.componentInstance;
     await fixture.whenStable();
   });

frontend/src/app/components/home/home.ts

@@ -1,8 +1,9 @@
 import { Component, OnInit } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { MaterialModule } from '../../material.module';
-import { ApiService } from '../../services/api';
+import { Api } from '../../services/api';
 import { Item } from '../../models/item';
+import { IconService } from '../../services/icon.service';
 import { Observable } from 'rxjs';
 
 @Component({
@@ -16,7 +17,10 @@ export class HomeComponent implements OnInit {
   items$!: Observable<Item[]>;
   imgErrorMap = new Map<number, boolean>();
 
-  constructor(private apiService: ApiService) {}
+  constructor(
+    private apiService: Api,
+    private iconService: IconService
+  ) {}
 
   ngOnInit(): void {
     this.items$ = this.apiService.getItems();
@@ -25,4 +29,8 @@ export class HomeComponent implements OnInit {
   onImgError(itemId: number) {
     this.imgErrorMap.set(itemId, true);
   }
+  
+  isMaterialIcon(iconUrl: string): boolean {
+    return this.iconService.isValidIcon(iconUrl);
+  }
 }

frontend/src/app/components/item-form/item-form.html

@@ -2,6 +2,13 @@
   <mat-card>
     <mat-card-title>{{ isEditMode ? 'Edit Item' : 'Create Item' }}</mat-card-title>
     <mat-card-content>
+      <!-- Icon Auswahl Toggle (außerhalb des Forms) -->
+      <div class="icon-mode-toggle">
+        <mat-slide-toggle [checked]="useCustomUrl" (change)="onToggleChange($event)">
+          Custom Icon URL verwenden
+        </mat-slide-toggle>
+      </div>
+
       <form [formGroup]="itemForm" (ngSubmit)="onSubmit()">
         <mat-form-field appearance="fill">
           <mat-label>Name</mat-label>
@@ -18,7 +25,34 @@
           <input matInput formControlName="target">
         </mat-form-field>
 
-        <mat-form-field appearance="fill">
+        <!-- Material Icon Picker (Standard) -->
+        <div *ngIf="!useCustomUrl" class="icon-picker-section">
+          <mat-form-field appearance="fill">
+            <mat-label>Icon auswählen</mat-label>
+            <input type="text" 
+                   matInput 
+                   formControlName="iconName"
+                   [matAutocomplete]="auto"
+                   placeholder="Icon suchen...">
+            <mat-icon matPrefix>search</mat-icon>
+            <mat-autocomplete #auto="matAutocomplete" [displayWith]="displayFn">
+              <mat-option *ngFor="let icon of filteredIcons$ | async" [value]="icon.name">
+                <mat-icon>{{ icon.name }}</mat-icon>
+                <span class="icon-option-text">{{ icon.name }}</span>
+                <span class="icon-category">{{ icon.category }}</span>
+              </mat-option>
+            </mat-autocomplete>
+          </mat-form-field>
+          
+          <!-- Icon Vorschau -->
+          <div class="icon-preview" *ngIf="itemForm.get('iconName')?.value">
+            <span class="preview-label">Vorschau:</span>
+            <mat-icon class="preview-icon">{{ getSelectedIconName() }}</mat-icon>
+          </div>
+        </div>
+
+        <!-- Custom Icon URL Feld -->
+        <mat-form-field appearance="fill" *ngIf="useCustomUrl">
           <mat-label>Icon URL</mat-label>
           <input matInput formControlName="iconUrl">
         </mat-form-field>

frontend/src/app/components/item-form/item-form.scss

@@ -19,3 +19,46 @@ mat-form-field {
   gap: 10px;
   margin-top: 20px;
 }
+
+.icon-mode-toggle {
+  margin: 16px 0;
+}
+
+.icon-picker-section {
+  .icon-preview {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+    padding: 16px;
+    background-color: #f5f5f5;
+    border-radius: 4px;
+    margin-bottom: 16px;
+    
+    .preview-label {
+      font-weight: 500;
+      color: #666;
+    }
+    
+    .preview-icon {
+      font-size: 48px;
+      width: 48px;
+      height: 48px;
+      color: #1976d2;
+    }
+  }
+}
+
+::ng-deep {
+  .mat-mdc-option {
+    .icon-option-text {
+      margin-left: 12px;
+      margin-right: auto;
+    }
+    
+    .icon-category {
+      font-size: 12px;
+      color: #666;
+      margin-left: 8px;
+    }
+  }
+}

frontend/src/app/components/item-form/item-form.spec.ts

@@ -1,18 +1,18 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
-import { ItemForm } from './item-form';
+import { ItemFormComponent } from './item-form';
 
-describe('ItemForm', () => {
+describe('ItemFormComponent', () => {
-  let component: ItemForm;
+  let component: ItemFormComponent;
-  let fixture: ComponentFixture<ItemForm>;
+  let fixture: ComponentFixture<ItemFormComponent>;
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [ItemForm]
+      imports: [ItemFormComponent]
     })
     .compileComponents();
 
-    fixture = TestBed.createComponent(ItemForm);
+    fixture = TestBed.createComponent(ItemFormComponent);
     component = fixture.componentInstance;
     await fixture.whenStable();
   });

frontend/src/app/components/item-form/item-form.ts

@@ -1,58 +1,128 @@
 import { Component, OnInit } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
-import { FormBuilder, FormGroup, Validators, ReactiveFormsModule } from '@angular/forms';
+import { FormBuilder, FormGroup, Validators, ReactiveFormsModule, FormsModule } from '@angular/forms';
-import { ApiService } from '../../services/api';
+import { Api } from '../../services/api';
 import { Item } from '../../models/item';
 import { MaterialModule } from '../../material.module';
 import { CommonModule } from '@angular/common';
+import { IconService, MaterialIcon } from '../../services/icon.service';
+import { Observable } from 'rxjs';
+import { map, startWith } from 'rxjs/operators';
 
 @Component({
   selector: 'app-item-form',
   templateUrl: './item-form.html',
   styleUrls: ['./item-form.scss'],
   standalone: true,
-  imports: [MaterialModule, CommonModule, ReactiveFormsModule],
+  imports: [MaterialModule, CommonModule, ReactiveFormsModule, FormsModule],
 })
 export class ItemFormComponent implements OnInit {
   itemForm: FormGroup;
   isEditMode = false;
   itemId: number | null = null;
+  
+  // Icon-Auswahl Eigenschaften
+  filteredIcons$!: Observable<MaterialIcon[]>;
+  allIcons: MaterialIcon[] = [];
+  useCustomUrl = false;
 
   constructor(
     private fb: FormBuilder,
-    private apiService: ApiService,
+    private apiService: Api,
     private router: Router,
-    private route: ActivatedRoute
+    private route: ActivatedRoute,
+    private iconService: IconService
   ) {
     this.itemForm = this.fb.group({
       name: ['', Validators.required],
       displayName: ['', Validators.required],
       target: ['', Validators.required],
-      iconUrl: ['']
+      iconUrl: [''],
+      iconName: ['']
     });
   }
 
   ngOnInit(): void {
+    // Icons laden
+    this.allIcons = this.iconService.getAllIcons();
+    
+    // Autocomplete für Icons einrichten
+    this.filteredIcons$ = this.itemForm.get('iconName')!.valueChanges.pipe(
+      startWith(''),
+      map(value => this._filterIcons(value || ''))
+    );
+    
     const idParam = this.route.snapshot.params['id'];
     if (idParam) {
       this.isEditMode = true;
       this.itemId = +idParam; // Convert string to number
       this.apiService.getItem(this.itemId).subscribe(item => {
         this.itemForm.patchValue(item);
+        
+        // Prüfen ob Custom URL oder Material Icon verwendet wird
+        if (item.iconUrl) {
+          if (this.iconService.isValidIcon(item.iconUrl)) {
+            // Es ist ein Material Icon Name
+            this.itemForm.patchValue({ iconName: item.iconUrl, iconUrl: '' });
+            this.useCustomUrl = false;
+          } else {
+            // Es ist eine Custom URL
+            this.useCustomUrl = true;
+          }
+        }
       });
     }
   }
+  
+  private _filterIcons(value: string): MaterialIcon[] {
+    const filterValue = value.toLowerCase();
+    return this.allIcons.filter(icon => 
+      icon.name.toLowerCase().includes(filterValue) || 
+      icon.category.toLowerCase().includes(filterValue)
+    );
+  }
+  
+  onToggleChange(event: any): void {
+    this.useCustomUrl = event.checked;
+    if (this.useCustomUrl) {
+      this.itemForm.patchValue({ iconName: '' });
+    } else {
+      this.itemForm.patchValue({ iconUrl: '' });
+    }
+  }
+  
+  getSelectedIconName(): string {
+    return this.itemForm.get('iconName')?.value || 'dashboard';
+  }
+
+  displayFn(iconName: string): string {
+    return iconName;
+  }
 
   onSubmit(): void {
     if (this.itemForm.valid) {
-      const itemData: Item = { id: this.itemId, ...this.itemForm.value };
+      // Bestimme welches Icon-Feld verwendet werden soll
+      let finalIconUrl = this.itemForm.value.iconUrl;
+      if (!this.useCustomUrl && this.itemForm.value.iconName) {
+        // Verwende Material Icon Namen als iconUrl
+        finalIconUrl = this.itemForm.value.iconName;
+      }
+      
+      const itemData: Item = { 
+        id: this.itemId ?? 0, 
+        name: this.itemForm.value.name,
+        displayName: this.itemForm.value.displayName,
+        target: this.itemForm.value.target,
+        iconUrl: finalIconUrl
+      };
+      
       if (this.isEditMode) {
         this.apiService.updateItem(this.itemId!, itemData).subscribe(() => {
           this.router.navigate(['/']);
         });
       } else {
         this.apiService.createItem(itemData).subscribe(() => {
-          this.router.navigate(['/']);
+          this.router.navigate(['/admin']);
         });
       }
     }

frontend/src/app/components/item-list/item-list.spec.ts

@@ -1,18 +1,18 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
-import { ItemList } from './item-list';
+import { ItemListComponent } from './item-list';
 
-describe('ItemList', () => {
+describe('ItemListComponent', () => {
-  let component: ItemList;
+  let component: ItemListComponent;
-  let fixture: ComponentFixture<ItemList>;
+  let fixture: ComponentFixture<ItemListComponent>;
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [ItemList]
+      imports: [ItemListComponent]
     })
     .compileComponents();
 
-    fixture = TestBed.createComponent(ItemList);
+    fixture = TestBed.createComponent(ItemListComponent);
     component = fixture.componentInstance;
     await fixture.whenStable();
   });

frontend/src/app/components/item-list/item-list.ts

@@ -1,5 +1,5 @@
 import { Component, OnInit } from '@angular/core';
-import { ApiService } from '../../services/api';
+import { Api } from '../../services/api';
 import { Item } from '../../models/item';
 import { Router } from '@angular/router';
 import { MaterialModule } from '../../material.module';
@@ -17,7 +17,7 @@ export class ItemListComponent implements OnInit {
   displayedColumns: string[] = ['id', 'name', 'displayName', 'target', 'actions'];
   dataSource = new MatTableDataSource<Item>();
 
-  constructor(private apiService: ApiService, private router: Router) { }
+  constructor(private apiService: Api, private router: Router) { }
 
   ngOnInit(): void {
     this.loadItems();

frontend/src/app/material.module.ts

@@ -7,6 +7,8 @@ import { MatTableModule } from '@angular/material/table';
 import { MatToolbarModule } from '@angular/material/toolbar';
 import { MatIconModule } from '@angular/material/icon';
 import { MatTooltipModule } from '@angular/material/tooltip';
+import { MatSlideToggleModule } from '@angular/material/slide-toggle';
+import { MatAutocompleteModule } from '@angular/material/autocomplete';
 
 @NgModule({
   exports: [
@@ -18,6 +20,8 @@ import { MatTooltipModule } from '@angular/material/tooltip';
     MatToolbarModule,
     MatIconModule,
     MatTooltipModule,
+    MatSlideToggleModule,
+    MatAutocompleteModule,
   ]
 })
 export class MaterialModule { }

frontend/src/app/services/api.ts

@@ -6,7 +6,7 @@ import { Item } from '../models/item';
 @Injectable({
   providedIn: 'root'
 })
-export class ApiService {
+export class Api {
   private apiUrl = '/api/items';
 
   constructor(private http: HttpClient) { }

frontend/src/app/services/icon.service.ts

@@ -0,0 +1,161 @@
+import { Injectable } from '@angular/core';
+
+export interface MaterialIcon {
+  name: string;
+  category: string;
+}
+
+@Injectable({
+  providedIn: 'root'
+})
+export class IconService {
+  // Häufig verwendete Material Icons, gruppiert nach Kategorien
+  private icons: MaterialIcon[] = [
+    // Navigation
+    { name: 'home', category: 'Navigation' },
+    { name: 'dashboard', category: 'Navigation' },
+    { name: 'menu', category: 'Navigation' },
+    { name: 'apps', category: 'Navigation' },
+    { name: 'arrow_back', category: 'Navigation' },
+    { name: 'arrow_forward', category: 'Navigation' },
+    { name: 'expand_more', category: 'Navigation' },
+    { name: 'expand_less', category: 'Navigation' },
+    
+    // Web & Browser
+    { name: 'web', category: 'Web' },
+    { name: 'language', category: 'Web' },
+    { name: 'public', category: 'Web' },
+    { name: 'link', category: 'Web' },
+    { name: 'http', category: 'Web' },
+    { name: 'https', category: 'Web' },
+    { name: 'vpn_lock', category: 'Web' },
+    
+    // Kommunikation
+    { name: 'email', category: 'Kommunikation' },
+    { name: 'mail', category: 'Kommunikation' },
+    { name: 'chat', category: 'Kommunikation' },
+    { name: 'message', category: 'Kommunikation' },
+    { name: 'forum', category: 'Kommunikation' },
+    { name: 'phone', category: 'Kommunikation' },
+    
+    // Content
+    { name: 'create', category: 'Content' },
+    { name: 'edit', category: 'Content' },
+    { name: 'add', category: 'Content' },
+    { name: 'delete', category: 'Content' },
+    { name: 'content_copy', category: 'Content' },
+    { name: 'save', category: 'Content' },
+    
+    // Dateien & Ordner
+    { name: 'folder', category: 'Dateien' },
+    { name: 'folder_open', category: 'Dateien' },
+    { name: 'description', category: 'Dateien' },
+    { name: 'insert_drive_file', category: 'Dateien' },
+    { name: 'cloud', category: 'Dateien' },
+    { name: 'cloud_upload', category: 'Dateien' },
+    { name: 'cloud_download', category: 'Dateien' },
+    
+    // Medien
+    { name: 'image', category: 'Medien' },
+    { name: 'photo', category: 'Medien' },
+    { name: 'video_library', category: 'Medien' },
+    { name: 'movie', category: 'Medien' },
+    { name: 'music_note', category: 'Medien' },
+    { name: 'audiotrack', category: 'Medien' },
+    
+    // Business
+    { name: 'work', category: 'Business' },
+    { name: 'business', category: 'Business' },
+    { name: 'store', category: 'Business' },
+    { name: 'shopping_cart', category: 'Business' },
+    { name: 'payment', category: 'Business' },
+    { name: 'account_balance', category: 'Business' },
+    
+    // Sozial
+    { name: 'person', category: 'Sozial' },
+    { name: 'people', category: 'Sozial' },
+    { name: 'group', category: 'Sozial' },
+    { name: 'account_circle', category: 'Sozial' },
+    { name: 'favorite', category: 'Sozial' },
+    { name: 'share', category: 'Sozial' },
+    
+    // System
+    { name: 'settings', category: 'System' },
+    { name: 'build', category: 'System' },
+    { name: 'search', category: 'System' },
+    { name: 'info', category: 'System' },
+    { name: 'help', category: 'System' },
+    { name: 'warning', category: 'System' },
+    { name: 'error', category: 'System' },
+    { name: 'check_circle', category: 'System' },
+    { name: 'notifications', category: 'System' },
+    
+    // Geräte
+    { name: 'computer', category: 'Geräte' },
+    { name: 'phone_android', category: 'Geräte' },
+    { name: 'tablet', category: 'Geräte' },
+    { name: 'laptop', category: 'Geräte' },
+    { name: 'tv', category: 'Geräte' },
+    { name: 'watch', category: 'Geräte' },
+    
+    // Entwicklung
+    { name: 'code', category: 'Entwicklung' },
+    { name: 'developer_mode', category: 'Entwicklung' },
+    { name: 'bug_report', category: 'Entwicklung' },
+    { name: 'terminal', category: 'Entwicklung' },
+    { name: 'api', category: 'Entwicklung' },
+    
+    // Sicherheit
+    { name: 'lock', category: 'Sicherheit' },
+    { name: 'lock_open', category: 'Sicherheit' },
+    { name: 'security', category: 'Sicherheit' },
+    { name: 'verified_user', category: 'Sicherheit' },
+    { name: 'vpn_key', category: 'Sicherheit' },
+    
+    // Verschiedenes
+    { name: 'star', category: 'Verschiedenes' },
+    { name: 'bookmark', category: 'Verschiedenes' },
+    { name: 'label', category: 'Verschiedenes' },
+    { name: 'lightbulb', category: 'Verschiedenes' },
+    { name: 'extension', category: 'Verschiedenes' },
+    { name: 'widgets', category: 'Verschiedenes' },
+  ];
+
+  constructor() { }
+
+  /**
+   * Gibt alle verfügbaren Icons zurück
+   */
+  getAllIcons(): MaterialIcon[] {
+    return this.icons;
+  }
+
+  /**
+   * Filtert Icons nach Suchbegriff
+   */
+  filterIcons(searchTerm: string): MaterialIcon[] {
+    if (!searchTerm) {
+      return this.icons;
+    }
+    
+    const term = searchTerm.toLowerCase();
+    return this.icons.filter(icon => 
+      icon.name.toLowerCase().includes(term) || 
+      icon.category.toLowerCase().includes(term)
+    );
+  }
+
+  /**
+   * Gibt Icon-Namen zurück (für Autocomplete-Display)
+   */
+  getIconNames(): string[] {
+    return this.icons.map(icon => icon.name);
+  }
+
+  /**
+   * Prüft, ob ein Icon-Name in der Liste existiert
+   */
+  isValidIcon(iconName: string): boolean {
+    return this.icons.some(icon => icon.name === iconName);
+  }
+}