refactor: migrate tenant bootstrap to use SSR state caching and update button components to use CSS tenant variables

src/app/app.spec.ts

@@ -1,23 +1,88 @@
+import { signal } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
+import { provideRouter } from '@angular/router';
+
 import { App } from './app';
+import { Tenant } from './core/services/tenant.interface';
+import { TenantService } from './core/services/tenant.service';
+
+const tenant: Tenant = {
+  id: 1,
+  codigo: 'test',
+  nombre: 'Test Tenant',
+  dominio: 'localhost',
+  primary_color: '#6376F3',
+  secondary_color: '#A0A0A0',
+  danger_color: '#FF8888',
+  header_footer_bg_color: '#313131',
+  header_logo: 'https://example.com/header.png',
+  footer_logo: 'https://example.com/footer.png'
+};
+
+function createTenantServiceStub(status: 'ready' | 'not-found', currentTenant: Tenant | null) {
+  const tenantState = signal(currentTenant);
+  const statusState = signal(status);
+
+  return {
+    tenant: tenantState.asReadonly(),
+    status: statusState.asReadonly(),
+    getTenant: () => tenantState(),
+    bootstrap: vi.fn().mockResolvedValue(undefined)
+  };
+}
 
 describe('App', () => {
-  beforeEach(async () => {
+  it('creates the app when the tenant is ready', async () => {
     await TestBed.configureTestingModule({
       imports: [App],
+      providers: [
+        provideRouter([]),
+        {
+          provide: TenantService,
+          useValue: createTenantServiceStub('ready', tenant)
+        }
+      ]
     }).compileComponents();
+
+    const fixture = TestBed.createComponent(App);
+    fixture.detectChanges();
+
+    expect(fixture.componentInstance).toBeTruthy();
+    expect(fixture.nativeElement.style.getPropertyValue('--tenant-primary')).toBe(
+      tenant.primary_color
+    );
+    expect(fixture.nativeElement.style.getPropertyValue('--tenant-secondary')).toBe(
+      tenant.secondary_color
+    );
+    expect(fixture.nativeElement.style.getPropertyValue('--tenant-danger')).toBe(
+      tenant.danger_color
+    );
+    expect(fixture.nativeElement.style.getPropertyValue('--tenant-primary-rgb')).toBe(
+      '99, 118, 243'
+    );
+    expect(fixture.nativeElement.style.getPropertyValue('--tenant-secondary-rgb')).toBe(
+      '160, 160, 160'
+    );
+    expect(fixture.nativeElement.style.getPropertyValue('--tenant-danger-rgb')).toBe(
+      '255, 136, 136'
+    );
   });
 
-  it('should create the app', () => {
-    const fixture = TestBed.createComponent(App);
-    const app = fixture.componentInstance;
-    expect(app).toBeTruthy();
-  });
+  it('renders the tenant not found screen when the tenant is missing', async () => {
+    await TestBed.configureTestingModule({
+      imports: [App],
+      providers: [
+        provideRouter([]),
+        {
+          provide: TenantService,
+          useValue: createTenantServiceStub('not-found', null)
+        }
+      ]
+    }).compileComponents();
 
-  it('should render title', async () => {
     const fixture = TestBed.createComponent(App);
-    await fixture.whenStable();
-    const compiled = fixture.nativeElement as HTMLElement;
-    expect(compiled.querySelector('router-outlet')).not.toBeNull();
+    fixture.detectChanges();
+
+    expect(fixture.nativeElement.textContent).toContain('No encontramos una tienda para este dominio');
   });
 });