show first entry

frontend/.editorconfig

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+# Editor configuration, see https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.ts]
+quote_type = single
+ij_typescript_use_double_quotes = false
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

frontend/.gitignore

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+# See https://docs.github.com/get-started/getting-started-with-git/ignoring-files for more about ignoring files.
+
+# Compiled output
+/dist
+/tmp
+/out-tsc
+/bazel-out
+
+# Node
+/node_modules
+npm-debug.log
+yarn-error.log
+
+# IDEs and editors
+.idea/
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# Visual Studio Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history/*
+
+# Miscellaneous
+/.angular/cache
+.sass-cache/
+/connect.lock
+/coverage
+/libpeerconnection.log
+testem.log
+/typings
+
+# System files
+.DS_Store
+Thumbs.db

frontend/.postcssrc.json

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+{
+  "plugins": {
+    "@tailwindcss/postcss": {}
+  }
+}

frontend/.vscode/extensions.json

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+{
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=827846
+  "recommendations": ["angular.ng-template"]
+}

frontend/.vscode/launch.json

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+{
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "ng serve",
+      "type": "chrome",
+      "request": "launch",
+      "preLaunchTask": "npm: start",
+      "url": "http://localhost:4200/"
+    },
+    {
+      "name": "ng test",
+      "type": "chrome",
+      "request": "launch",
+      "preLaunchTask": "npm: test",
+      "url": "http://localhost:9876/debug.html"
+    }
+  ]
+}

frontend/.vscode/tasks.json

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+{
+  // For more information, visit: https://go.microsoft.com/fwlink/?LinkId=733558
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "type": "npm",
+      "script": "start",
+      "isBackground": true,
+      "problemMatcher": {
+        "owner": "typescript",
+        "pattern": "$tsc",
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": {
+            "regexp": "(.*?)"
+          },
+          "endsPattern": {
+            "regexp": "bundle generation complete"
+          }
+        }
+      }
+    },
+    {
+      "type": "npm",
+      "script": "test",
+      "isBackground": true,
+      "problemMatcher": {
+        "owner": "typescript",
+        "pattern": "$tsc",
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": {
+            "regexp": "(.*?)"
+          },
+          "endsPattern": {
+            "regexp": "bundle generation complete"
+          }
+        }
+      }
+    }
+  ]
+}

frontend/README.md

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+# Frontend
+
+This project was generated using [Angular CLI](https://github.com/angular/angular-cli) version 19.2.6.
+
+## Development server
+
+To start a local development server, run:
+
+```bash
+ng serve
+```
+
+Once the server is running, open your browser and navigate to `http://localhost:4200/`. The application will automatically reload whenever you modify any of the source files.
+
+## Code scaffolding
+
+Angular CLI includes powerful code scaffolding tools. To generate a new component, run:
+
+```bash
+ng generate component component-name
+```
+
+For a complete list of available schematics (such as `components`, `directives`, or `pipes`), run:
+
+```bash
+ng generate --help
+```
+
+## Building
+
+To build the project run:
+
+```bash
+ng build
+```
+
+This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
+
+## Running unit tests
+
+To execute unit tests with the [Karma](https://karma-runner.github.io) test runner, use the following command:
+
+```bash
+ng test
+```
+
+## Running end-to-end tests
+
+For end-to-end (e2e) testing, run:
+
+```bash
+ng e2e
+```
+
+Angular CLI does not come with an end-to-end testing framework by default. You can choose one that suits your needs.
+
+## Additional Resources
+
+For more information on using the Angular CLI, including detailed command references, visit the [Angular CLI Overview and Command Reference](https://angular.dev/tools/cli) page.

frontend/angular.json

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+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "newProjectRoot": "projects",
+  "projects": {
+    "frontend": {
+      "projectType": "application",
+      "schematics": {},
+      "root": "",
+      "sourceRoot": "src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:application",
+          "options": {
+            "outputPath": "dist/frontend",
+            "index": "src/index.html",
+            "browser": "src/main.ts",
+            "polyfills": [
+              "zone.js"
+            ],
+            "tsConfig": "tsconfig.app.json",
+            "assets": [
+              {
+                "glob": "**/*",
+                "input": "public"
+              }
+            ],
+            "styles": [
+              "src/styles.css"
+            ],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "500kB",
+                  "maximumError": "1MB"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "4kB",
+                  "maximumError": "8kB"
+                }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "optimization": false,
+              "extractLicenses": false,
+              "sourceMap": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": {
+              "buildTarget": "frontend:build:production"
+            },
+            "development": {
+              "buildTarget": "frontend:build:development"
+            }
+          },
+          "defaultConfiguration": "development"
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n"
+        },
+        "test": {
+          "builder": "@angular-devkit/build-angular:karma",
+          "options": {
+            "polyfills": [
+              "zone.js",
+              "zone.js/testing"
+            ],
+            "tsConfig": "tsconfig.spec.json",
+            "assets": [
+              {
+                "glob": "**/*",
+                "input": "public"
+              }
+            ],
+            "styles": [
+              "src/styles.css"
+            ],
+            "scripts": []
+          }
+        }
+      }
+    }
+  }
+}

frontend/package.json

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+{
+  "name": "frontend",
+  "version": "0.0.0",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve",
+    "build": "ng build",
+    "watch": "ng build --watch --configuration development",
+    "test": "ng test"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/common": "^19.2.0",
+    "@angular/compiler": "^19.2.0",
+    "@angular/core": "^19.2.0",
+    "@angular/forms": "^19.2.0",
+    "@angular/platform-browser": "^19.2.0",
+    "@angular/platform-browser-dynamic": "^19.2.0",
+    "@angular/router": "^19.2.0",
+    "@tailwindcss/postcss": "^4.1.3",
+    "dompurify": "^3.2.5",
+    "marked": "^15.0.8",
+    "postcss": "^8.5.3",
+    "rxjs": "~7.8.0",
+    "tailwindcss": "^4.1.3",
+    "tslib": "^2.3.0",
+    "zone.js": "~0.15.0"
+  },
+  "devDependencies": {
+    "@angular-devkit/build-angular": "^19.2.6",
+    "@angular/cli": "^19.2.6",
+    "@angular/compiler-cli": "^19.2.0",
+    "@types/jasmine": "~5.1.0",
+    "jasmine-core": "~5.6.0",
+    "karma": "~6.4.0",
+    "karma-chrome-launcher": "~3.2.0",
+    "karma-coverage": "~2.2.0",
+    "karma-jasmine": "~5.1.0",
+    "karma-jasmine-html-reporter": "~2.1.0",
+    "typescript": "~5.7.2"
+  }
+}

frontend/src/app/app.component.html

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+<header
+  class="flex flex-row justify-between items-center px-5 bg-gray-300 h-16 w-full drop-shadow-xl/5"
+>
+  <a routerLink="/">
+    <h1 class="text-2xl">My Blog</h1>
+  </a>
+  <nav></nav>
+</header>
+<main class="w-screen h-full px-5 sm:px-20 xl:px-96 pt-5">
+  <router-outlet />
+</main>

frontend/src/app/app.component.spec.ts

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+import { TestBed } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [AppComponent],
+    }).compileComponents();
+  });
+
+  it('should create the app', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app).toBeTruthy();
+  });
+
+  it(`should have the 'frontend' title`, () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app.title).toEqual('frontend');
+  });
+
+  it('should render title', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.nativeElement as HTMLElement;
+    expect(compiled.querySelector('h1')?.textContent).toContain('Hello, frontend');
+  });
+});

frontend/src/app/app.component.ts

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+import { Component } from '@angular/core';
+import { RouterLink, RouterOutlet } from '@angular/router';
+
+@Component({
+  selector: 'app-root',
+  imports: [RouterOutlet, RouterLink],
+  templateUrl: './app.component.html',
+})
+export class AppComponent {
+  title = 'frontend';
+}

frontend/src/app/app.config.ts

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+import { ApplicationConfig, provideZoneChangeDetection } from '@angular/core';
+import { provideRouter, withComponentInputBinding } from '@angular/router';
+
+import { routes } from './app.routes';
+import { provideHttpClient } from '@angular/common/http';
+
+export const appConfig: ApplicationConfig = {
+  providers: [
+    provideZoneChangeDetection({ eventCoalescing: true }),
+    provideRouter(routes, withComponentInputBinding()),
+    provideHttpClient(),
+  ],
+};

frontend/src/app/app.routes.ts

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+import { Routes } from '@angular/router';
+import { HomeComponent } from './routes/home/home.component';
+import { PostComponent } from './routes/post/post.component';
+
+export const routes: Routes = [
+  { path: '', component: HomeComponent },
+  { path: 'post', children: [{ path: ':id', component: PostComponent }] },
+];

frontend/src/app/components/markdown/markdown.component.html

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+<div [innerHTML]="innerHTML"></div>

frontend/src/app/components/markdown/markdown.component.spec.ts

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { MarkdownComponent } from './markdown.component';
+
+describe('MarkdownComponent', () => {
+  let component: MarkdownComponent;
+  let fixture: ComponentFixture<MarkdownComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [MarkdownComponent]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(MarkdownComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

frontend/src/app/components/markdown/markdown.component.ts

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+import { Component, Input, OnChanges, OnInit } from '@angular/core';
+import DOMPurify from 'dompurify';
+import { marked } from 'marked';
+
+@Component({
+  selector: 'app-markdown',
+  imports: [],
+  standalone: true,
+  templateUrl: './markdown.component.html',
+})
+export class MarkdownComponent implements OnChanges {
+  @Input() markdown: string = '';
+  innerHTML: string = '';
+
+  async parseMD() {
+    this.innerHTML = DOMPurify.sanitize(await marked.parse(this.markdown));
+  }
+
+  ngOnChanges(): void {
+    this.parseMD();
+  }
+}

frontend/src/app/routes/home/home.component.html

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+<p>Welcome to by little blog:</p>
+<section class="grid gap-5 sm:grid-cols-2 2xl:grid-cols-3">
+  <button
+    *ngFor="let post of posts()"
+    class="p-5 flex flex-col items-start rounded-s bg-white drop-shadow-md hover:drop-shadow-xl"
+    [routerLink]="`/post/${post.id}`"
+  >
+    <h2 class="text-xl">{{ post.title }}</h2>
+    <p><strong>TL;DR; </strong>{{ post.tldr }}</p>
+  </button>
+</section>

frontend/src/app/routes/home/home.component.spec.ts

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { HomeComponent } from './home.component';
+
+describe('HomeComponent', () => {
+  let component: HomeComponent;
+  let fixture: ComponentFixture<HomeComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [HomeComponent]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(HomeComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

frontend/src/app/routes/home/home.component.ts

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+import { Component, inject, OnInit, Signal } from '@angular/core';
+import { PostsService } from '../../shared/services/posts.service';
+import { NgForOf } from '@angular/common';
+import { RouterLink } from '@angular/router';
+import { Post } from '../../shared/services/interfaces/post';
+
+@Component({
+  selector: 'app-home',
+  imports: [NgForOf, RouterLink],
+  standalone: true,
+  templateUrl: './home.component.html',
+})
+export class HomeComponent {
+  private postsService = inject(PostsService);
+
+  get posts() {
+    return this.postsService.getPosts();
+  }
+}

frontend/src/app/routes/post/post.component.html

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+<h2 class="text-3xl">{{ post()?.title }}</h2>
+<p class="mb-5 italic text-sm">TL;DR; {{ post()?.tldr }}</p>
+
+<app-markdown
+  class="todo"
+  [markdown]="post()?.content || 'this post is empty'"
+/>

frontend/src/app/routes/post/post.component.spec.ts

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { PostComponent } from './post.component';
+
+describe('PostComponent', () => {
+  let component: PostComponent;
+  let fixture: ComponentFixture<PostComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [PostComponent]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(PostComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

frontend/src/app/routes/post/post.component.ts

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+import { Component, inject, Input } from '@angular/core';
+import { PostsService } from '../../shared/services/posts.service';
+import { JsonPipe, NgIf } from '@angular/common';
+import { MarkdownComponent } from '../../components/markdown/markdown.component';
+
+@Component({
+  selector: 'app-post',
+  imports: [MarkdownComponent],
+  standalone: true,
+  templateUrl: './post.component.html',
+})
+export class PostComponent {
+  private posts = inject(PostsService);
+  @Input() id!: string;
+
+  get post() {
+    return this.posts.getPost(parseInt(this.id));
+  }
+}

frontend/src/app/shared/services/interfaces/post.ts

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+export interface Post {
+  id: number;
+  title: string;
+  tldr: string;
+  content: string;
+}
+
+export interface Comment {
+  content: string;
+}

frontend/src/app/shared/services/posts.service.spec.ts

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+import { TestBed } from '@angular/core/testing';
+
+import { PostsService } from './posts.service';
+
+describe('PostsService', () => {
+  let service: PostsService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(PostsService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

frontend/src/app/shared/services/posts.service.ts

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+import { HttpClient } from '@angular/common/http';
+import {
+  computed,
+  inject,
+  Injectable,
+  Signal,
+  signal,
+  WritableSignal,
+} from '@angular/core';
+import { Post } from './interfaces/post';
+import { environment } from '../../../environments/environment';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class PostsService {
+  private http = inject(HttpClient);
+  private posts: WritableSignal<Map<number, Post>> = signal(new Map());
+
+  constructor() {
+    this.updatePosts(); // Pull posts immediately when the service is instantiated
+  }
+
+  updatePosts() {
+    this.http
+      .get<Post[]>(`${environment.apiRoot}/posts`)
+      .subscribe((res) => this.posts.set(new Map(res.map((p) => [p.id, p]))));
+  }
+  getPosts(): Signal<Post[]> {
+    return computed(() => Array.from(this.posts().values()));
+  }
+
+  getPost(id: number): Signal<Post | undefined> {
+    console.log(typeof id);
+    console.log(this.posts().has(id));
+    console.log(this.posts().has(2));
+
+    return computed(() => this.posts().get(id));
+  }
+}

frontend/src/environments/environment.ts

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+export const environment = {
+  production: false,
+  apiRoot: 'http://localhost:8080',
+};

frontend/src/index.html

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+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <title>Frontend</title>
+    <base href="/" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link rel="icon" type="image/x-icon" href="favicon.ico" />
+  </head>
+  <body>
+    <app-root></app-root>
+  </body>
+</html>

frontend/src/main.ts

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+import { bootstrapApplication } from '@angular/platform-browser';
+import { appConfig } from './app/app.config';
+import { AppComponent } from './app/app.component';
+
+bootstrapApplication(AppComponent, appConfig).catch((err) =>
+  console.error(err),
+);

frontend/src/styles.css

@@ -0,0 +1,59 @@
+/* You can add global styles to this file, and also import other style files */
+@import "tailwindcss";
+
+/* apply todo css */
+.todo {
+  @layer base {
+    body {
+      @apply bg-gray-50 text-gray-800 font-sans leading-relaxed text-base;
+    }
+
+    h1 {
+      @apply text-3xl font-bold text-gray-900 mt-8 mb-4;
+    }
+
+    h2 {
+      @apply text-2xl font-semibold text-gray-800 mt-6 mb-3;
+    }
+
+    h3 {
+      @apply text-xl font-semibold text-gray-700 mt-5 mb-2;
+    }
+
+    h4,
+    h5,
+    h6 {
+      @apply text-xl font-medium text-gray-600 mt-4 mb-2;
+    }
+
+    a {
+      @apply text-blue-600 hover:text-blue-800 transition-colors underline;
+    }
+
+    ul,
+    ol {
+      @apply pl-6 mb-4;
+    }
+
+    li {
+      @apply mb-1;
+    }
+
+    table {
+      @apply w-full border-collapse shadow-sm bg-white my-6;
+    }
+
+    th,
+    td {
+      @apply border border-gray-200 px-4 py-2 text-left;
+    }
+
+    th {
+      @apply bg-gray-100 font-semibold;
+    }
+
+    tr:nth-child(even) {
+      @apply bg-gray-50;
+    }
+  }
+}

frontend/tsconfig.app.json

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+/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
+/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./out-tsc/app",
+    "types": []
+  },
+  "files": [
+    "src/main.ts"
+  ],
+  "include": [
+    "src/**/*.d.ts"
+  ]
+}

frontend/tsconfig.json

@@ -0,0 +1,27 @@
+/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
+/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
+{
+  "compileOnSave": false,
+  "compilerOptions": {
+    "outDir": "./dist/out-tsc",
+    "strict": true,
+    "noImplicitOverride": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "skipLibCheck": true,
+    "isolatedModules": true,
+    "esModuleInterop": true,
+    "experimentalDecorators": true,
+    "moduleResolution": "bundler",
+    "importHelpers": true,
+    "target": "ES2022",
+    "module": "ES2022"
+  },
+  "angularCompilerOptions": {
+    "enableI18nLegacyMessageIdFormat": false,
+    "strictInjectionParameters": true,
+    "strictInputAccessModifiers": true,
+    "strictTemplates": true
+  }
+}

frontend/tsconfig.spec.json

@@ -0,0 +1,15 @@
+/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
+/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./out-tsc/spec",
+    "types": [
+      "jasmine"
+    ]
+  },
+  "include": [
+    "src/**/*.spec.ts",
+    "src/**/*.d.ts"
+  ]
+}