Answer:1

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

@@ -1,9 +1,73 @@
-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 { CardActions } from '../../model';
+import {
+  CardComponent,
+  CardSectionDirective,
+  ListItemComponent,
+} from '../../ui';
 
 @Component({
   selector: 'app-city-card',
-  template: 'TODO City',
-  imports: [],
+  template: `
+    <app-card
+      [list]="cities()"
+      customClass="bg-light-blue"
+      [cardItemTemplate]="cardItemTemplate">
+      <img
+        cardSection="header"
+        ngSrc="assets/img/city.png"
+        width="200"
+        height="200" />
+
+      <ng-template #cardItemTemplate let-city>
+        <app-list-item
+          [name]="city.name"
+          [id]="city.id"
+          (deleteEvent)="onDeleteItem($event)"></app-list-item>
+      </ng-template>
+
+      <button
+        cardSection="footer"
+        class="rounded-sm border border-blue-500 bg-blue-300 p-2"
+        (click)="onAddNewItem()">
+        Add
+      </button>
+    </app-card>
+  `,
+  imports: [
+    CardComponent,
+    NgOptimizedImage,
+    ListItemComponent,
+    CardSectionDirective,
+  ],
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class CityCardComponent {}
+export class CityCardComponent implements OnInit, CardActions {
+  private readonly http = inject(FakeHttpService);
+  private readonly store = inject(CityStore);
+
+  cities = this.store.cities;
+
+  ngOnInit(): void {
+    this.http.fetchCities$.subscribe((cities) => this.store.addAll(cities));
+  }
+
+  onAddNewItem() {
+    this.store.addOne(randomCity());
+  }
+
+  onDeleteItem(id: number) {
+    this.store.deleteOne(id);
+  }
+}

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

@@ -1,40 +1,72 @@
+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 { CardActions } from '../../model';
+import {
+  CardComponent,
+  CardSectionDirective,
+  ListItemComponent,
+} from '../../ui';
 @Component({
   selector: 'app-student-card',
   template: `
     <app-card
       [list]="students()"
-      [type]="cardType"
-      customClass="bg-light-green" />
+      customClass="bg-light-green"
+      [cardItemTemplate]="cardItemTemplate">
+      <img
+        cardSection="header"
+        ngSrc="assets/img/student.webp"
+        width="200"
+        height="200" />
+
+      <ng-template #cardItemTemplate let-student>
+        <app-list-item
+          [name]="student.firstName"
+          [id]="student.id"
+          (deleteEvent)="onDeleteItem($event)"></app-list-item>
+      </ng-template>
+
+      <button
+        cardSection="footer"
+        class="rounded-sm border border-blue-500 bg-blue-300 p-2"
+        (click)="onAddNewItem()">
+        Add
+      </button>
+    </app-card>
   `,
-  styles: [
-    `
-      ::ng-deep .bg-light-green {
-        background-color: rgba(0, 250, 0, 0.1);
-      }
-    `,
+  imports: [
+    CardComponent,
+    NgOptimizedImage,
+    ListItemComponent,
+    CardSectionDirective,
   ],
-  imports: [CardComponent],
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class StudentCardComponent implements OnInit {
-  private http = inject(FakeHttpService);
-  private store = inject(StudentStore);
+export class StudentCardComponent implements OnInit, CardActions {
+  private readonly http = inject(FakeHttpService);
+  private readonly store = inject(StudentStore);
 
   students = this.store.students;
-  cardType = CardType.STUDENT;
 
   ngOnInit(): void {
     this.http.fetchStudents$.subscribe((s) => this.store.addAll(s));
   }
+
+  onAddNewItem() {
+    this.store.addOne(randStudent());
+  }
+
+  onDeleteItem(id: number) {
+    this.store.deleteOne(id);
+  }
 }

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

@@ -1,34 +1,67 @@
+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 { CardActions } from '../../model';
+import {
+  CardComponent,
+  CardSectionDirective,
+  ListItemComponent,
+} from '../../ui';
 @Component({
   selector: 'app-teacher-card',
   template: `
     <app-card
       [list]="teachers()"
-      [type]="cardType"
-      customClass="bg-light-red"></app-card>
+      customClass="bg-light-red"
+      [cardItemTemplate]="cardItemTemplate">
+      <img
+        priority
+        cardSection="header"
+        ngSrc="assets/img/teacher.png"
+        width="200"
+        height="200" />
+
+      <ng-template #cardItemTemplate let-teacher>
+        <app-list-item
+          [name]="teacher.firstName"
+          [id]="teacher.id"
+          (deleteEvent)="onDeleteItem($event)"></app-list-item>
+      </ng-template>
+
+      <button
+        cardSection="footer"
+        class="rounded-sm border border-blue-500 bg-blue-300 p-2"
+        (click)="onAddNewItem()">
+        Add
+      </button>
+    </app-card>
   `,
-  styles: [
-    `
-      ::ng-deep .bg-light-red {
-        background-color: rgba(250, 0, 0, 0.1);
-      }
-    `,
+  imports: [
+    CardComponent,
+    NgOptimizedImage,
+    ListItemComponent,
+    CardSectionDirective,
   ],
-  imports: [CardComponent],
 })
-export class TeacherCardComponent implements OnInit {
-  private http = inject(FakeHttpService);
-  private store = inject(TeacherStore);
+export class TeacherCardComponent implements OnInit, CardActions {
+  private readonly http = inject(FakeHttpService);
+  private readonly store = inject(TeacherStore);
 
   teachers = this.store.teachers;
-  cardType = CardType.TEACHER;
 
   ngOnInit(): void {
     this.http.fetchTeachers$.subscribe((t) => this.store.addAll(t));
   }
+
+  onDeleteItem(id: number) {
+    this.store.deleteOne(id);
+  }
+
+  onAddNewItem() {
+    this.store.addOne(randTeacher());
+  }
 }

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/model/base.model.ts

@@ -0,0 +1,3 @@
+export interface BaseItem {
+  id: number;
+}

apps/angular/1-projection/src/app/model/card-actions.interface.ts

@@ -0,0 +1,4 @@
+export interface CardActions {
+  onDeleteItem(id: number): void;
+  onAddNewItem(): void;
+}

apps/angular/1-projection/src/app/model/city.model.ts

@@ -1,5 +1,6 @@
-export interface City {
-  id: number;
+import { BaseItem } from './base.model';
+
+export interface City extends BaseItem {
   name: string;
   country: string;
 }

apps/angular/1-projection/src/app/model/index.ts

@@ -0,0 +1,5 @@
+export * from './card-actions.interface';
+export * from './card.model';
+export * from './city.model';
+export * from './student.model';
+export * from './teacher.model';

apps/angular/1-projection/src/app/model/student.model.ts

@@ -1,7 +1,7 @@
+import { BaseItem } from './base.model';
 import { Teacher } from './teacher.model';
 
-export interface Student {
-  id: number;
+export interface Student extends BaseItem {
   firstName: string;
   lastName: string;
   mainTeacher: Teacher;

apps/angular/1-projection/src/app/model/teacher.model.ts

@@ -1,14 +1,16 @@
+import { BaseItem } from './base.model';
+
 export const subject = [
   'Sciences',
   'History',
   'English',
   'Maths',
   'Sport',
 ] as const;
+
 export type Subject = (typeof subject)[number];
 
-export interface Teacher {
-  id: number;
+export interface Teacher extends BaseItem {
   firstName: string;
   lastName: string;
   subject: Subject;

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

@@ -1,58 +1,33 @@
-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 { CommonModule } from '@angular/common';
+import { Component, input, TemplateRef } from '@angular/core';
+import { BaseItem } from '../../model/base.model';
 @Component({
   selector: 'app-card',
   template: `
     <div
-      class="flex w-fit flex-col gap-3 rounded-md border-2 border-black p-4"
+      class="card 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" />
-      }
-      @if (type() === CardType.STUDENT) {
-        <img ngSrc="assets/img/student.webp" width="200" height="200" />
-      }
+      <div class="card-header">
+        <ng-content select="[cardSection='header']"></ng-content>
+      </div>
 
-      <section>
-        @for (item of list(); track item) {
-          <app-list-item
-            [name]="item.firstName"
-            [id]="item.id"
-            [type]="type()"></app-list-item>
+      <div class="card-body">
+        @for (item of list(); track item.id) {
+          <ng-container
+            [ngTemplateOutlet]="cardItemTemplate()"
+            [ngTemplateOutletContext]="{ $implicit: item }"></ng-container>
         }
-      </section>
+      </div>
 
-      <button
-        class="rounded-sm border border-blue-500 bg-blue-300 p-2"
-        (click)="addNewItem()">
-        Add
-      </button>
+      <div class="card-footer">
+        <ng-content select="[cardSection='footer']"></ng-content>
+      </div>
     </div>
   `,
-  imports: [ListItemComponent, NgOptimizedImage],
+  imports: [CommonModule],
 })
-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 extends BaseItem> {
+  readonly list = input<T[] | null>(null);
   readonly customClass = input('');
-
-  CardType = CardType;
-
-  addNewItem() {
-    const type = this.type();
-    if (type === CardType.TEACHER) {
-      this.teacherStore.addOne(randTeacher());
-    } else if (type === CardType.STUDENT) {
-      this.studentStore.addOne(randStudent());
-    }
-  }
+  readonly cardItemTemplate = input.required<TemplateRef<any>>();
 }