From bbfcb40ef10bd8901823f120c94e4881fcc46c69 Mon Sep 17 00:00:00 2001
From: Brandon Roberts <robertsbt@gmail.com>
Date: Sat, 6 May 2023 20:18:09 -0500
Subject: [PATCH] feat(astro-angular): add support for render and client
 component providers (#376)

---
 .../src/components/card.component.ts          |  8 +++
 .../src/components/todos.component.ts         | 36 +++++++++++
 apps/astro-app/src/pages/index.astro          |  3 +
 packages/astro-angular/README.md              | 64 ++++++++++++++++---
 packages/astro-angular/src/client.ts          | 10 ++-
 packages/astro-angular/src/index.ts           | 24 ++++++-
 packages/astro-angular/src/server.ts          |  8 ++-
 packages/astro-angular/tsconfig.lib.json      |  2 +-
 8 files changed, 141 insertions(+), 14 deletions(-)
 create mode 100644 apps/astro-app/src/components/todos.component.ts

diff --git a/apps/astro-app/src/components/card.component.ts b/apps/astro-app/src/components/card.component.ts
index 2841df688..5042219ec 100644
--- a/apps/astro-app/src/components/card.component.ts
+++ b/apps/astro-app/src/components/card.component.ts
@@ -1,9 +1,12 @@
 import {
   ChangeDetectionStrategy,
   Component,
+  inject,
   Input,
   ViewEncapsulation,
 } from '@angular/core';
+import { provideAnimations } from '@angular/platform-browser/animations';
+import { HttpClient, provideHttpClient } from '@angular/common/http';
 
 @Component({
   selector: 'astro-card',
@@ -90,4 +93,9 @@ export class CardComponent {
   @Input() href = '';
   @Input() title = '';
   @Input() body = '';
+
+  static renderProviders = [provideHttpClient()];
+  static clientProviders = [CardComponent.renderProviders, provideAnimations()];
+
+  private _http = inject(HttpClient);
 }
diff --git a/apps/astro-app/src/components/todos.component.ts b/apps/astro-app/src/components/todos.component.ts
new file mode 100644
index 000000000..1029e7a55
--- /dev/null
+++ b/apps/astro-app/src/components/todos.component.ts
@@ -0,0 +1,36 @@
+import { Component, OnInit, inject } from '@angular/core';
+import { NgFor } from '@angular/common';
+import { provideHttpClient, HttpClient } from '@angular/common/http';
+
+interface Todo {
+  id: number;
+  title: string;
+  completed: boolean;
+}
+
+@Component({
+  selector: 'app-todos',
+  standalone: true,
+  imports: [NgFor],
+  template: `
+    <h2>Todos</h2>
+
+    <ul>
+      <li *ngFor="let todo of todos">
+        {{ todo.title }}
+      </li>
+    </ul>
+  `,
+})
+export class TodosComponent implements OnInit {
+  static clientProviders = [provideHttpClient()];
+
+  http = inject(HttpClient);
+  todos: Todo[] = [];
+
+  ngOnInit() {
+    this.http
+      .get<Todo[]>('https://jsonplaceholder.typicode.com/todos')
+      .subscribe((todos) => (this.todos = todos));
+  }
+}
diff --git a/apps/astro-app/src/pages/index.astro b/apps/astro-app/src/pages/index.astro
index 81c523cf4..d70978607 100644
--- a/apps/astro-app/src/pages/index.astro
+++ b/apps/astro-app/src/pages/index.astro
@@ -3,6 +3,7 @@ import Layout from '../layouts/Layout.astro';
 import Card from '../components/Card.astro';
 import { CardComponent } from '../components/card.component.ts';
 import { Instructions } from '../components/Instructions';
+import { TodosComponent } from '../components/todos.component.ts';
 
 const serverSideTitle = 'Angular (server side binding)';
 ---
@@ -45,6 +46,8 @@ const serverSideTitle = 'Angular (server side binding)';
       />
 		</ul>
 	</main>
+
+	<TodosComponent />
 </Layout>
 
 <style>
diff --git a/packages/astro-angular/README.md b/packages/astro-angular/README.md
index bab4e30e0..f92ef55a2 100644
--- a/packages/astro-angular/README.md
+++ b/packages/astro-angular/README.md
@@ -110,7 +110,7 @@ export default defineConfig({
       vite: {
         tsconfig: 'path/to/tsconfig.app.json',
         workspaceRoot: 'rootDir',
-        inlineStylesExtension: 'scss|sass|less'
+        inlineStylesExtension: 'scss|sass|less',
       },
     }),
   ],
@@ -174,6 +174,52 @@ import { HelloComponent } from '../components/hello.component';
 
 Find more information about [Client Directives](https://docs.astro.build/en/reference/directives-reference/#client-directives) in the Astro documentation.
 
+## Adding Component Providers
+
+Additional providers can be added to a component for static rendering and client hydration.
+
+These are `renderProviders` and `clientProviders` respectively. These providers are defined as static arrays on the Component class, and are registered when the component is rendered, and hydrated on the client.
+
+```ts
+import { Component, OnInit, inject } from '@angular/core';
+import { NgFor } from '@angular/common';
+import { provideHttpClient, HttpClient } from '@angular/common/http';
+
+interface Todo {
+  id: number;
+  title: string;
+  completed: boolean;
+}
+
+@Component({
+  selector: 'app-todos',
+  standalone: true,
+  imports: [NgFor],
+  template: `
+    <h2>Todos</h2>
+
+    <ul>
+      <li *ngFor="let todo of todos">
+        {{ todo.title }}
+      </li>
+    </ul>
+  `,
+})
+export class TodosComponent implements OnInit {
+  static clientProviders = [provideHttpClient()];
+  static renderProviders = [];
+
+  http = inject(HttpClient);
+  todos: Todo[] = [];
+
+  ngOnInit() {
+    this.http
+      .get<Todo[]>('https://jsonplaceholder.typicode.com/todos')
+      .subscribe((todos) => (this.todos = todos));
+  }
+}
+```
+
 ## Using Components in MDX pages
 
 To use components with MDX pages, you must install and configure MDX support by following the Astro integration of [@astrojs/mdx](https://docs.astro.build/en/guides/integrations-guide/mdx/). Your `astro.config.mjs` should now include the `@astrojs/mdx` integration.
@@ -192,10 +238,10 @@ Create an `.mdx` file inside the `src/pages` directory and add the Angular compo
 
 ```md
 ---
-layout: "../../layouts/BlogPost.astro"
-title: "Using Angular in MDX"
-description: "Lorem ipsum dolor sit amet"
-pubDate: "Sep 22 2022"
+layout: '../../layouts/BlogPost.astro'
+title: 'Using Angular in MDX'
+description: 'Lorem ipsum dolor sit amet'
+pubDate: 'Sep 22 2022'
 ---
 
 import { HelloComponent } from "../../components/hello.component.ts";
@@ -208,10 +254,10 @@ To hydrate the component on the client, use one of the Astro [client directives]
 
 ```md
 ---
-layout: "../../layouts/BlogPost.astro"
-title: "Using Angular in MDX"
-description: "Lorem ipsum dolor sit amet"
-pubDate: "Sep 22 2022"
+layout: '../../layouts/BlogPost.astro'
+title: 'Using Angular in MDX'
+description: 'Lorem ipsum dolor sit amet'
+pubDate: 'Sep 22 2022'
 ---
 
 import { HelloComponent } from "../../components/hello.component.ts";
diff --git a/packages/astro-angular/src/client.ts b/packages/astro-angular/src/client.ts
index 3f25e8333..3ffac441f 100644
--- a/packages/astro-angular/src/client.ts
+++ b/packages/astro-angular/src/client.ts
@@ -1,5 +1,7 @@
 import 'zone.js/dist/zone.js';
 import {
+  EnvironmentProviders,
+  Provider,
   reflectComponentType,
   ɵComponentType as ComponentType,
 } from '@angular/core';
@@ -8,11 +10,15 @@ import { createApplication } from '@angular/platform-browser';
 
 export default (element: HTMLElement) => {
   return (
-    Component: ComponentType<unknown>,
+    Component: ComponentType<unknown> & {
+      clientProviders?: (Provider | EnvironmentProviders)[];
+    },
     props?: Record<string, unknown>,
     _childHTML?: unknown
   ) => {
-    createApplication().then((appRef: ApplicationRef) => {
+    createApplication({
+      providers: [...(Component.clientProviders || [])],
+    }).then((appRef: ApplicationRef) => {
       const zone = appRef.injector.get(NgZone);
       zone.run(() => {
         const componentRef = createComponent(Component, {
diff --git a/packages/astro-angular/src/index.ts b/packages/astro-angular/src/index.ts
index 1e8332173..2212c653e 100644
--- a/packages/astro-angular/src/index.ts
+++ b/packages/astro-angular/src/index.ts
@@ -38,7 +38,29 @@ function getViteConfiguration(vite?: PluginOptions) {
      * this workaround for now.
      *
      */
-    plugins: [(viteAngular as any).default(vite)],
+    plugins: [
+      (viteAngular as any).default(vite),
+      {
+        name: '@analogjs/astro-angular-platform-server',
+        transform(code: string, id: string) {
+          if (id.includes('platform-server')) {
+            code = code.replace(/global\./g, 'globalThis.');
+
+            return {
+              code: code.replace(
+                'new xhr2.XMLHttpRequest',
+                'new (xhr2.default.XMLHttpRequest || xhr2.default)'
+              ),
+            };
+          }
+
+          return;
+        },
+      },
+    ],
+    ssr: {
+      noExternal: ['@angular/**', '@analogjs/**'],
+    },
   };
 }
 
diff --git a/packages/astro-angular/src/server.ts b/packages/astro-angular/src/server.ts
index 75bcbeb2f..131997f12 100644
--- a/packages/astro-angular/src/server.ts
+++ b/packages/astro-angular/src/server.ts
@@ -1,6 +1,7 @@
 import 'zone.js/bundles/zone-node.umd.js';
 import type {
   ComponentMirror,
+  EnvironmentProviders,
   Provider,
   ɵComponentType as ComponentType,
 } from '@angular/core';
@@ -13,6 +14,7 @@ import {
   BEFORE_APP_SERIALIZED,
   provideServerRendering,
   renderApplication,
+  ɵSERVER_CONTEXT,
 } from '@angular/platform-server';
 import { bootstrapApplication } from '@angular/platform-browser';
 
@@ -72,7 +74,9 @@ const STATIC_PROPS_HOOK_PROVIDER: Provider = {
 };
 
 async function renderToStaticMarkup(
-  Component: ComponentType<unknown>,
+  Component: ComponentType<unknown> & {
+    renderProviders: (Provider | EnvironmentProviders)[];
+  },
   props: Record<string, unknown>,
   _children: unknown
 ) {
@@ -88,6 +92,8 @@ async function renderToStaticMarkup(
         },
         STATIC_PROPS_HOOK_PROVIDER,
         provideServerRendering(),
+        { provide: ɵSERVER_CONTEXT, useValue: 'analog' },
+        ...(Component.renderProviders || []),
       ],
     });
 
diff --git a/packages/astro-angular/tsconfig.lib.json b/packages/astro-angular/tsconfig.lib.json
index 762acb7ad..51d1bcd14 100644
--- a/packages/astro-angular/tsconfig.lib.json
+++ b/packages/astro-angular/tsconfig.lib.json
@@ -2,7 +2,7 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "outDir": "../../dist/out-tsc",
-    "declaration": true,
+    "declaration": false,
     "inlineSourceMap": true,
     "sourceMap": false,
     "types": []