12 files changed, 186 insertions, 0 deletions

diff --git a/overlays/spm/frontend/src/app/app-routing.module.ts b/overlays/spm/frontend/src/app/app-routing.module.ts
new file mode 100644
index 00000000..2da97cea
--- /dev/null
+++ b/overlays/spm/frontend/src/app/app-routing.module.ts
@@ -0,0 +1,17 @@
+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+
+import { SpmComponent } from './spm/spm.component';
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
+
+const routes: Routes = [
+  { path: 'spm', component: SpmComponent },
+  { path: '', redirectTo: '/spm', pathMatch: 'full' },
+  { path: '**', component: PageNotFoundComponent }
+];
+
+@NgModule({
+  imports: [RouterModule.forRoot(routes)],
+  exports: [RouterModule]
+})
+export class AppRoutingModule { }
diff --git a/overlays/spm/frontend/src/app/app.component.html b/overlays/spm/frontend/src/app/app.component.html
new file mode 100644
index 00000000..f9b5b8fc
--- /dev/null
+++ b/overlays/spm/frontend/src/app/app.component.html
@@ -0,0 +1,7 @@
+<mat-toolbar color="primary">
+  <div>
+    <a mat-button routerLink="/spm" routerLinkActive="active">spm</a>
+  </div>
+</mat-toolbar>
+<!-- The routed views render in the <router-outlet> -->
+<router-outlet></router-outlet>
diff --git a/overlays/spm/frontend/src/app/app.component.sass b/overlays/spm/frontend/src/app/app.component.sass
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/overlays/spm/frontend/src/app/app.component.sass
diff --git a/overlays/spm/frontend/src/app/app.component.ts b/overlays/spm/frontend/src/app/app.component.ts
new file mode 100644
index 00000000..7c231203
--- /dev/null
+++ b/overlays/spm/frontend/src/app/app.component.ts
@@ -0,0 +1,21 @@
+import { Component, OnInit, OnDestroy } from '@angular/core';
+
+import { ColorSchemeService } from './color-scheme.service';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.sass']
+})
+export class AppComponent implements OnInit, OnDestroy {
+  title = 'spm-frontend';
+
+  constructor(private colorSchemeService: ColorSchemeService) {}
+
+  ngOnInit() {
+    this.colorSchemeService.init();
+  }
+  ngOnDestroy() {
+    this.colorSchemeService.destroy();
+  }
+}
diff --git a/overlays/spm/frontend/src/app/app.module.ts b/overlays/spm/frontend/src/app/app.module.ts
new file mode 100644
index 00000000..914f73a2
--- /dev/null
+++ b/overlays/spm/frontend/src/app/app.module.ts
@@ -0,0 +1,32 @@
+import { NgModule } from '@angular/core';
+import { BrowserModule } from '@angular/platform-browser';
+
+import { AppRoutingModule } from './app-routing.module';
+import { AppComponent } from './app.component';
+import { SpmComponent } from './spm/spm.component';
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
+import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
+import { MatIconModule } from '@angular/material/icon';
+import { HttpClientModule } from "@angular/common/http";
+import { MatToolbarModule } from '@angular/material/toolbar';
+import { MatButtonModule } from '@angular/material/button';
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    SpmComponent,
+    PageNotFoundComponent
+  ],
+  imports: [
+    BrowserModule,
+    AppRoutingModule,
+    BrowserAnimationsModule,
+    MatIconModule,
+    HttpClientModule,
+    MatToolbarModule,
+    MatButtonModule
+  ],
+  providers: [],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }
diff --git a/overlays/spm/frontend/src/app/color-scheme.service.ts b/overlays/spm/frontend/src/app/color-scheme.service.ts
new file mode 100644
index 00000000..c56e9c23
--- /dev/null
+++ b/overlays/spm/frontend/src/app/color-scheme.service.ts
@@ -0,0 +1,62 @@
+import { Injectable, Renderer2, RendererFactory2 } from '@angular/core';
+import { MediaMatcher } from '@angular/cdk/layout';
+import { LocalStorage } from 'ngx-webstorage';
+
+type ColorScheme = "dark" | "light";
+
+@Injectable({
+  providedIn: 'root'
+})
+export class ColorSchemeService {
+  private renderer: Renderer2;
+  matcher!: MediaQueryList;
+
+  @LocalStorage('prefers-color-scheme')
+  public colorSchemeOverride: ColorScheme;
+
+  public activeColorScheme: BehaviorSubject<ColorScheme> = new BehaviorSubject("light");
+
+  constructor(rendererFactory: RendererFactory2,
+              mediaMatcher: MediaMatcher
+             ) {
+    // Create new renderer from renderFactory, to make it possible to use renderer2 in a service
+    this.renderer = rendererFactory.createRenderer(null, null);
+    this.matcher = mediaMatcher.matchMedia('(prefers-color-scheme: dark)');
+
+    this._listener = this._listener.bind(this);
+  }
+
+  init() {
+    this.matcher.addEventListener('change', this._listener);
+    this.load();
+  }
+
+  _listener(event: { matches: any; }) {
+    this.activeColorScheme.next(event.matches ? 'dark' : 'light');
+  }
+
+  destroy() {
+    this.matcher.removeEventListener('change', this._listener);
+  }
+
+  _getColorScheme() {
+    if (this.colorSchemeOverride) {
+      this.colorSchemeOverride
+    } else {
+      this.matcher.matches ? 'dark' : 'light'
+    }
+  }
+
+  load() {
+    this.activeColorScheme.next(this._getColorScheme());
+  }
+
+  update(scheme: ColorScheme) {
+    this.colorSchemeOverride = scheme;
+    this.activeColorScheme.next(scheme);
+  }
+
+  currentActive() {
+    return this.colorScheme;
+  }
+}
diff --git a/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.html b/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.html
new file mode 100644
index 00000000..26a283ed
--- /dev/null
+++ b/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.html
@@ -0,0 +1,5 @@
+<div style="margin: 1rem;">
+  <h1>
+    No Such Component
+  </h1>
+</div>
diff --git a/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.sass b/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.sass
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.sass
diff --git a/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.ts b/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.ts
new file mode 100644
index 00000000..2d1091ce
--- /dev/null
+++ b/overlays/spm/frontend/src/app/page-not-found/page-not-found.component.ts
@@ -0,0 +1,15 @@
+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-page-not-found',
+  templateUrl: './page-not-found.component.html',
+  styleUrls: ['./page-not-found.component.sass']
+})
+export class PageNotFoundComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}
diff --git a/overlays/spm/frontend/src/app/spm/spm.component.html b/overlays/spm/frontend/src/app/spm/spm.component.html
new file mode 100644
index 00000000..d1339d95
--- /dev/null
+++ b/overlays/spm/frontend/src/app/spm/spm.component.html
@@ -0,0 +1,3 @@
+<p>spm works!</p>
+
+<mat-icon aria-hidden="false" aria-label="Thumbs up" svgIcon="thumb_up"></mat-icon>
diff --git a/overlays/spm/frontend/src/app/spm/spm.component.sass b/overlays/spm/frontend/src/app/spm/spm.component.sass
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/overlays/spm/frontend/src/app/spm/spm.component.sass
diff --git a/overlays/spm/frontend/src/app/spm/spm.component.ts b/overlays/spm/frontend/src/app/spm/spm.component.ts
new file mode 100644
index 00000000..7d172052
--- /dev/null
+++ b/overlays/spm/frontend/src/app/spm/spm.component.ts
@@ -0,0 +1,24 @@
+import { Component, OnInit } from '@angular/core';
+import { MatIconRegistry, MatIconModule } from '@angular/material/icon';
+import { DomSanitizer } from "@angular/platform-browser";
+
+@Component({
+  selector: 'app-spm',
+  templateUrl: './spm.component.html',
+  styleUrls: ['./spm.component.sass']
+})
+export class SpmComponent implements OnInit {
+
+  constructor(private matIconRegistry: MatIconRegistry,
+              private domSanitizer: DomSanitizer
+             ) {
+    this.matIconRegistry.addSvgIcon(
+      `thumb_up`,
+      this.domSanitizer.bypassSecurityTrustResourceUrl(`icons/thumb_up/baseline.svg`)
+    );
+  }
+
+  ngOnInit(): void {
+  }
+
+}