Answer: 1-Projection

apps/angular/1-projection/project.json

@@ -15,12 +15,12 @@
         "main": "apps/angular/1-projection/src/main.ts",
         "polyfills": ["apps/angular/1-projection/src/polyfills.ts"],
         "tsConfig": "apps/angular/1-projection/tsconfig.app.json",
-        "inlineStyleLanguage": "scss",
+        "inlineStyleLanguage": "css",
         "assets": [
           "apps/angular/1-projection/src/favicon.ico",
           "apps/angular/1-projection/src/assets"
         ],
-        "styles": ["apps/angular/1-projection/src/styles.scss"],
+        "styles": ["apps/angular/1-projection/src/styles.css"],
         "scripts": [],
         "allowedCommonJsDependencies": ["seedrandom"]
       },

apps/angular/1-projection/src/app/component/city-card/city-card.component.ts

@@ -1,9 +1,72 @@
-import { ChangeDetectionStrategy, Component } from '@angular/core';
+import { NgOptimizedImage } from '@angular/common';
+import {
+  ChangeDetectionStrategy,
+  Component,
+  inject,
+  OnInit,
+} from '@angular/core';
+import { CityStore } from '../../data-access/city.store';
+import {
+  FakeHttpService,
+  randomCity,
+} from '../../data-access/fake-http.service';
+import {
+  CardComponent,
+  CardListItemDirective,
+} from '../../ui/card/card.component';
+import { ListItemComponent } from '../../ui/list-item/list-item.component';
 
 @Component({
   selector: 'app-city-card',
-  template: 'TODO City',
-  imports: [],
+  template: `
+    <app-card
+      [list]="cities()"
+      (addItemEvent)="addNewItem()"
+      (deleteItemEvent)="deleteItem($event)"
+      customClass="bg-light-blue">
+      <img
+        card-image
+        ngSrc="assets/img/city.png"
+        width="200"
+        height="200"
+        alt="" />
+      <ng-template card-list-item let-city>
+        <app-list-item (deleteEvent)="deleteItem(city.id)">
+          {{ city.name }}
+        </app-list-item>
+      </ng-template>
+    </app-card>
+  `,
+  styles: [
+    `
+      ::ng-deep .bg-light-blue {
+        background-color: rgba(0, 0, 250, 0.1);
+      }
+    `,
+  ],
+  imports: [
+    CardComponent,
+    NgOptimizedImage,
+    CardListItemDirective,
+    ListItemComponent,
+  ],
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class CityCardComponent {}
+export class CityCardComponent implements OnInit {
+  private http = inject(FakeHttpService);
+  private store = inject(CityStore);
+
+  cities = this.store.cities;
+
+  ngOnInit(): void {
+    this.http.fetchCities$.subscribe((c) => this.store.addAll(c));
+  }
+
+  addNewItem() {
+    this.store.addOne(randomCity());
+  }
+
+  deleteItem(id: number) {
+    this.store.deleteOne(id);
+  }
+}

apps/angular/1-projection/src/app/component/student-card/student-card.component.ts

@@ -1,21 +1,41 @@
+import { NgOptimizedImage } from '@angular/common';
 import {
   ChangeDetectionStrategy,
   Component,
   inject,
   OnInit,
 } from '@angular/core';
-import { FakeHttpService } from '../../data-access/fake-http.service';
+import {
+  FakeHttpService,
+  randStudent,
+} from '../../data-access/fake-http.service';
 import { StudentStore } from '../../data-access/student.store';
-import { CardType } from '../../model/card.model';
-import { CardComponent } from '../../ui/card/card.component';
+import {
+  CardComponent,
+  CardListItemDirective,
+} from '../../ui/card/card.component';
+import { ListItemComponent } from '../../ui/list-item/list-item.component';
 
 @Component({
   selector: 'app-student-card',
   template: `
     <app-card
       [list]="students()"
-      [type]="cardType"
-      customClass="bg-light-green" />
+      customClass="bg-light-green"
+      (addItemEvent)="addNewItem()"
+      (deleteItemEvent)="deleteItem($event)">
+      <img
+        card-image
+        ngSrc="assets/img/student.webp"
+        width="200"
+        height="200"
+        alt="" />
+      <ng-template card-list-item let-student>
+        <app-list-item (deleteEvent)="deleteItem(student.id)">
+          {{ student.firstName + ' ' + student.lastName }}
+        </app-list-item>
+      </ng-template>
+    </app-card>
   `,
   styles: [
     `
@@ -24,17 +44,29 @@ import { CardComponent } from '../../ui/card/card.component';
       }
     `,
   ],
-  imports: [CardComponent],
+  imports: [
+    CardComponent,
+    NgOptimizedImage,
+    CardListItemDirective,
+    ListItemComponent,
+  ],
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class StudentCardComponent implements OnInit {
   private http = inject(FakeHttpService);
   private store = inject(StudentStore);
 
   students = this.store.students;
-  cardType = CardType.STUDENT;
 
   ngOnInit(): void {
     this.http.fetchStudents$.subscribe((s) => this.store.addAll(s));
   }
+
+  addNewItem() {
+    this.store.addOne(randStudent());
+  }
+
+  deleteItem(id: number) {
+    this.store.deleteOne(id);
+  }
 }

apps/angular/1-projection/src/app/component/teacher-card/teacher-card.component.ts

@@ -1,16 +1,37 @@
+import { NgOptimizedImage } from '@angular/common';
 import { Component, inject, OnInit } from '@angular/core';
-import { FakeHttpService } from '../../data-access/fake-http.service';
+import {
+  FakeHttpService,
+  randTeacher,
+} from '../../data-access/fake-http.service';
 import { TeacherStore } from '../../data-access/teacher.store';
-import { CardType } from '../../model/card.model';
-import { CardComponent } from '../../ui/card/card.component';
+import {
+  CardComponent,
+  CardListItemDirective,
+} from '../../ui/card/card.component';
+import { ListItemComponent } from '../../ui/list-item/list-item.component';
 
 @Component({
   selector: 'app-teacher-card',
   template: `
     <app-card
       [list]="teachers()"
-      [type]="cardType"
-      customClass="bg-light-red"></app-card>
+      customClass="bg-light-red"
+      (addItemEvent)="addNewItem()"
+      (deleteItemEvent)="deleteItem($event)">
+      <img
+        card-image
+        priority
+        ngSrc="assets/img/teacher.png"
+        width="200"
+        height="200"
+        alt="" />
+      <ng-template card-list-item let-teacher>
+        <app-list-item (deleteEvent)="deleteItem(teacher.id)">
+          {{ teacher.firstName + ' ' + teacher.lastName }}
+        </app-list-item>
+      </ng-template>
+    </app-card>
   `,
   styles: [
     `
@@ -19,16 +40,27 @@ import { CardComponent } from '../../ui/card/card.component';
       }
     `,
   ],
-  imports: [CardComponent],
+  imports: [
+    CardComponent,
+    NgOptimizedImage,
+    CardListItemDirective,
+    ListItemComponent,
+  ],
 })
 export class TeacherCardComponent implements OnInit {
   private http = inject(FakeHttpService);
   private store = inject(TeacherStore);
 
   teachers = this.store.teachers;
-  cardType = CardType.TEACHER;
 
   ngOnInit(): void {
     this.http.fetchTeachers$.subscribe((t) => this.store.addAll(t));
   }
+
+  addNewItem() {
+    this.store.addOne(randTeacher());
+  }
+  deleteItem(id: number) {
+    this.store.deleteOne(id);
+  }
 }

apps/angular/1-projection/src/app/data-access/city.store.ts

@@ -5,7 +5,7 @@ import { City } from '../model/city.model';
   providedIn: 'root',
 })
 export class CityStore {
-  private cities = signal<City[]>([]);
+  public cities = signal<City[]>([]);
 
   addAll(cities: City[]) {
     this.cities.set(cities);

apps/angular/1-projection/src/app/ui/card/card.component.ts

@@ -1,30 +1,31 @@
-import { NgOptimizedImage } from '@angular/common';
-import { Component, inject, input } from '@angular/core';
-import { randStudent, randTeacher } from '../../data-access/fake-http.service';
-import { StudentStore } from '../../data-access/student.store';
-import { TeacherStore } from '../../data-access/teacher.store';
-import { CardType } from '../../model/card.model';
-import { ListItemComponent } from '../list-item/list-item.component';
+import { NgTemplateOutlet } from '@angular/common';
+import {
+  Component,
+  contentChild,
+  Directive,
+  input,
+  output,
+  TemplateRef,
+} from '@angular/core';
+
+@Directive({
+  selector: 'ng-template [card-list-item]',
+})
+export class CardListItemDirective {}
 
 @Component({
   selector: 'app-card',
   template: `
     <div
       class="flex w-fit flex-col gap-3 rounded-md border-2 border-black p-4"
       [class]="customClass()">
-      @if (type() === CardType.TEACHER) {
-        <img ngSrc="assets/img/teacher.png" width="200" height="200" alt="" />
-      }
-      @if (type() === CardType.STUDENT) {
-        <img ngSrc="assets/img/student.webp" width="200" height="200" alt="" />
-      }
+      <ng-content select="[card-image]" />
 
       <section>
         @for (item of list(); track item) {
-          <app-list-item
-            [name]="item.firstName"
-            [id]="item.id"
-            [type]="type()"></app-list-item>
+          <ng-template
+            [ngTemplateOutlet]="listTemplateRef()"
+            [ngTemplateOutletContext]="{ $implicit: item }" />
         }
       </section>
 
@@ -35,24 +36,18 @@ import { ListItemComponent } from '../list-item/list-item.component';
       </button>
     </div>
   `,
-  imports: [ListItemComponent, NgOptimizedImage],
+  imports: [NgTemplateOutlet],
 })
-export class CardComponent {
-  private teacherStore = inject(TeacherStore);
-  private studentStore = inject(StudentStore);
-
-  readonly list = input<any[] | null>(null);
-  readonly type = input.required<CardType>();
+export class CardComponent<T> {
+  addItemEvent = output();
+  deleteItemEvent = output<number>();
+  readonly list = input<T[]>([]);
   readonly customClass = input('');
-
-  CardType = CardType;
+  readonly listTemplateRef = contentChild(CardListItemDirective, {
+    read: TemplateRef<{ $implicit: T }>,
+  });
 
   addNewItem() {
-    const type = this.type();
-    if (type === CardType.TEACHER) {
-      this.teacherStore.addOne(randTeacher());
-    } else if (type === CardType.STUDENT) {
-      this.studentStore.addOne(randStudent());
-    }
+    this.addItemEvent.emit();
   }
 }

apps/angular/1-projection/src/app/ui/list-item/list-item.component.ts

@@ -1,39 +1,21 @@
-import {
-  ChangeDetectionStrategy,
-  Component,
-  inject,
-  input,
-} from '@angular/core';
-import { StudentStore } from '../../data-access/student.store';
-import { TeacherStore } from '../../data-access/teacher.store';
-import { CardType } from '../../model/card.model';
+import { ChangeDetectionStrategy, Component, output } from '@angular/core';
 
 @Component({
   selector: 'app-list-item',
   template: `
     <div class="flex justify-between border border-gray-300 px-2 py-1">
-      {{ name() }}
-      <button (click)="delete(id())">
+      <ng-content />
+      <button (click)="delete()">
         <img class="h-5" src="assets/svg/trash.svg" alt="trash" />
       </button>
     </div>
   `,
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class ListItemComponent {
-  private teacherStore = inject(TeacherStore);
-  private studentStore = inject(StudentStore);
+  deleteEvent = output<void>();
 
-  readonly id = input.required<number>();
-  readonly name = input.required<string>();
-  readonly type = input.required<CardType>();
-
-  delete(id: number) {
-    const type = this.type();
-    if (type === CardType.TEACHER) {
-      this.teacherStore.deleteOne(id);
-    } else if (type === CardType.STUDENT) {
-      this.studentStore.deleteOne(id);
-    }
+  delete() {
+    this.deleteEvent.emit();
   }
 }

apps/angular/10-utility-wrapper-pipe/project.json

@@ -15,12 +15,12 @@
         "main": "apps/angular/10-utility-wrapper-pipe/src/main.ts",
         "polyfills": "apps/angular/10-utility-wrapper-pipe/src/polyfills.ts",
         "tsConfig": "apps/angular/10-utility-wrapper-pipe/tsconfig.app.json",
-        "inlineStyleLanguage": "scss",
+        "inlineStyleLanguage": "css",
         "assets": [
           "apps/angular/10-utility-wrapper-pipe/src/favicon.ico",
           "apps/angular/10-utility-wrapper-pipe/src/assets"
         ],
-        "styles": ["apps/angular/10-utility-wrapper-pipe/src/styles.scss"],
+        "styles": ["apps/angular/10-utility-wrapper-pipe/src/styles.css"],
         "scripts": []
       },
       "configurations": {