feat: add admin interface with content management API and Docker setup

Dockerfile

@@ -1,4 +1,4 @@
-# Dockerfile for Astro webapp with NGINX for production
+# Dockerfile for Astro webapp with NGINX and API for content management
 # Stage 1: Build the Astro application
 FROM node:20-alpine as build
 
@@ -15,13 +15,24 @@ COPY . .
 # Build the Astro project
 RUN npm run build
 
-# Stage 2: Serve with NGINX
+# Stage 2: Serve with NGINX and Node API
 FROM nginx:alpine
 
+# Install Node.js for the API server
+RUN apk add --update nodejs npm
+
+# Set up directory structure
+WORKDIR /app
+
 # Copy built static files from build stage to NGINX html directory
 COPY --from=build /app/dist /usr/share/nginx/html
 
-# Add custom NGINX configuration if needed
+# Copy API files
+COPY --from=build /app/src/api /app/api
+WORKDIR /app/api
+RUN npm install --production
+
+# Add custom NGINX configuration with API proxy
 RUN echo 'server {\
     listen 80;\
     server_name _;\
@@ -30,10 +41,24 @@ RUN echo 'server {\
     location / {\
         try_files $uri $uri/ /index.html;\
     }\
+    location /api/ {\
+        proxy_pass http://localhost:3000/api/;\
+        proxy_http_version 1.1;\
+        proxy_set_header Upgrade $http_upgrade;\
+        proxy_set_header Connection "upgrade";\
+        proxy_set_header Host $host;\
+    }\
 }' > /etc/nginx/conf.d/default.conf
 
+# Copy start script
+COPY --from=build /app/start.sh /app/start.sh
+RUN chmod +x /app/start.sh
+
+# Create a directory for content if it doesn't exist
+RUN mkdir -p /app/content/books
+
 # Expose port 80
 EXPOSE 80
 
-# Start NGINX
+# Start NGINX and API server
-CMD ["nginx", "-g", "daemon off;"]
+CMD ["/app/start.sh"]

docker-compose.yml

@@ -0,0 +1,17 @@
+version: '3'
+
+services:
+  astro-app:
+    build: .
+    ports:
+      - "80:80"
+    environment:
+      - ADMIN_USERNAME=admin
+      - ADMIN_PASSWORD=password
+      - CONTENT_DIR=/app/content
+    volumes:
+      - content-data:/app/content
+
+volumes:
+  content-data:
+    # This ensures the volume persists across container restarts

src/api/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "content-api",
+  "version": "1.0.0",
+  "description": "API for content management",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js"
+  },
+  "dependencies": {
+    "express": "^4.18.2",
+    "body-parser": "^1.20.2",
+    "cors": "^2.8.5",
+    "express-basic-auth": "^1.2.1"
+  }
+}

src/api/server.js

@@ -0,0 +1,82 @@
+const express = require('express');
+const fs = require('fs/promises');
+const path = require('path');
+const cors = require('cors');
+const bodyParser = require('body-parser');
+const basicAuth = require('express-basic-auth');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+const CONTENT_DIR = process.env.CONTENT_DIR || path.join(__dirname, '../../content');
+const USERNAME = process.env.ADMIN_USERNAME || 'admin';
+const PASSWORD = process.env.ADMIN_PASSWORD || 'password';
+
+// Middleware
+app.use(cors());
+app.use(bodyParser.json());
+
+// Basic authentication
+app.use(basicAuth({
+  users: { [USERNAME]: PASSWORD },
+  challenge: true,
+  realm: 'Content Admin'
+}));
+
+// List all content files
+app.get('/api/content', async (req, res) => {
+  try {
+    const files = await fs.readdir(path.join(CONTENT_DIR, 'books'));
+    const contentFiles = files.filter(file => file.endsWith('.md'));
+    res.json({ files: contentFiles });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// Get content by filename
+app.get('/api/content/:filename', async (req, res) => {
+  try {
+    const filePath = path.join(CONTENT_DIR, 'books', req.params.filename);
+    const content = await fs.readFile(filePath, 'utf-8');
+    res.json({ content });
+  } catch (error) {
+    res.status(404).json({ error: 'File not found' });
+  }
+});
+
+// Update content
+app.put('/api/content/:filename', async (req, res) => {
+  try {
+    const filePath = path.join(CONTENT_DIR, 'books', req.params.filename);
+    await fs.writeFile(filePath, req.body.content);
+    res.json({ success: true });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// Create new content file
+app.post('/api/content', async (req, res) => {
+  try {
+    const filePath = path.join(CONTENT_DIR, 'books', req.body.filename);
+    await fs.writeFile(filePath, req.body.content);
+    res.json({ success: true });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// Delete content file
+app.delete('/api/content/:filename', async (req, res) => {
+  try {
+    const filePath = path.join(CONTENT_DIR, 'books', req.params.filename);
+    await fs.unlink(filePath);
+    res.json({ success: true });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+app.listen(PORT, () => {
+  console.log(`API server running on port ${PORT}`);
+});

src/pages/admin/edit.astro

@@ -0,0 +1,136 @@
+---
+import SiteLayout from '../../components/SiteLayout.astro';
+
+// In a real app, you'd check authentication here
+---
+
+<SiteLayout title="Edit Content">
+  <div class="container mx-auto px-4 py-8">
+    <div class="mb-6 flex justify-between items-center">
+      <h1 class="text-3xl font-bold">Edit Book</h1>
+      <a href="/admin" class="text-blue-500 hover:underline">Back to Dashboard</a>
+    </div>
+    
+    <div class="bg-white shadow rounded-lg p-6">
+      <form id="edit-form" class="space-y-6">
+        <div>
+          <label for="filename" class="block text-sm font-medium text-gray-700">Filename</label>
+          <input type="text" id="filename" name="filename" required
+            class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500">
+          <p class="text-xs text-gray-500 mt-1">Include .md extension (e.g., my-book.md)</p>
+        </div>
+        
+        <div>
+          <label for="content" class="block text-sm font-medium text-gray-700">Content</label>
+          <textarea id="content" name="content" rows="15" required
+            class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500"></textarea>
+        </div>
+        
+        <div>
+          <button type="submit" 
+            class="inline-flex justify-center py-2 px-4 border border-transparent shadow-sm text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
+            Save
+          </button>
+        </div>
+      </form>
+    </div>
+    
+    <div class="mt-8">
+      <h2 class="text-xl font-semibold mb-4">Preview</h2>
+      <div id="preview" class="bg-white shadow rounded-lg p-6 prose max-w-none">
+        <p>Type in the editor to see a preview...</p>
+      </div>
+    </div>
+  </div>
+
+<script>
+  // Get query params
+  const urlParams = new URLSearchParams(window.location.search);
+  const fileParam = urlParams.get('file');
+  
+  const filenameInput = document.getElementById('filename');
+  const contentTextarea = document.getElementById('content');
+  const previewDiv = document.getElementById('preview');
+  const editForm = document.getElementById('edit-form');
+  
+  // Base API URL - adapt for production vs. development
+  const getApiUrl = (path) => {
+    return window.location.hostname === 'localhost' 
+      ? `http://localhost:3000/api/${path}`
+      : `/api/${path}`;
+  };
+  
+  // Load existing content if editing
+  async function loadContent() {
+    if (!fileParam) return;
+    
+    try {
+      filenameInput.value = fileParam;
+      filenameInput.readOnly = true; // Don't allow changing filename if editing
+      
+      const response = await fetch(getApiUrl(`content/${fileParam}`), {
+        headers: {
+          'Authorization': 'Basic ' + btoa('admin:password') // In production, use proper auth
+        }
+      });
+      
+      if (!response.ok) throw new Error('Failed to load content');
+      
+      const data = await response.json();
+      contentTextarea.value = data.content;
+      updatePreview();
+    } catch (error) {
+      alert('Error loading content: ' + error.message);
+    }
+  }
+  
+  // Update preview when content changes
+  function updatePreview() {
+    // This is a simple preview. For proper Markdown, use a library like marked
+    previewDiv.innerHTML = `<pre>${contentTextarea.value}</pre>`;
+  }
+  
+  // Save content
+  async function saveContent(e) {
+    e.preventDefault();
+    
+    const filename = filenameInput.value;
+    const content = contentTextarea.value;
+    
+    if (!filename || !content) {
+      alert('Filename and content are required');
+      return;
+    }
+    
+    try {
+      const isNewFile = !fileParam;
+      const url = isNewFile 
+        ? getApiUrl('content')
+        : getApiUrl(`content/${filename}`);
+      
+      const response = await fetch(url, {
+        method: isNewFile ? 'POST' : 'PUT',
+        headers: {
+          'Content-Type': 'application/json',
+          'Authorization': 'Basic ' + btoa('admin:password') // In production, use proper auth
+        },
+        body: JSON.stringify({ filename, content })
+      });
+      
+      if (!response.ok) throw new Error('Failed to save content');
+      
+      alert('Content saved successfully!');
+      window.location.href = '/admin';
+    } catch (error) {
+      alert('Error saving content: ' + error.message);
+    }
+  }
+  
+  // Event listeners
+  document.addEventListener('DOMContentLoaded', () => {
+    loadContent();
+    contentTextarea.addEventListener('input', updatePreview);
+    editForm.addEventListener('submit', saveContent);
+  });
+</script>
+</SiteLayout>

src/pages/admin/index.astro

@@ -0,0 +1,102 @@
+---
+import SiteLayout from '../../components/SiteLayout.astro';
+---
+
+<SiteLayout title="Content Admin">
+  <div class="container mx-auto px-4 py-8">
+    <h1 class="text-3xl font-bold mb-6">Content Management</h1>
+    
+    <div class="mb-6">
+      <a href="/admin/edit" class="bg-green-500 hover:bg-green-600 text-white px-4 py-2 rounded">
+        Create New Book
+      </a>
+    </div>
+    
+    <div class="bg-white shadow rounded-lg p-6">
+      <h2 class="text-xl font-semibold mb-4">Your Books</h2>
+      
+      <div id="books-list" class="space-y-4">
+        <p>Loading books...</p>
+      </div>
+    </div>
+  </div>
+
+<script>
+  // This would fetch from your API in production
+  async function fetchBooks() {
+    try {
+      const apiUrl = window.location.hostname === 'localhost' 
+        ? 'http://localhost:3000/api/content'
+        : '/api/content';
+        
+      const response = await fetch(apiUrl, {
+        headers: {
+          'Authorization': 'Basic ' + btoa('admin:password') // In production, use proper auth
+        }
+      });
+      
+      if (!response.ok) throw new Error('Failed to fetch books');
+      
+      const data = await response.json();
+      const booksList = document.getElementById('books-list');
+      
+      if (data.files && data.files.length > 0) {
+        booksList.innerHTML = '';
+        
+        data.files.forEach(file => {
+          const bookEl = document.createElement('div');
+          bookEl.className = 'flex justify-between items-center p-4 border rounded';
+          
+          bookEl.innerHTML = `
+            <div>
+              <h3 class="font-medium">${file}</h3>
+            </div>
+            <div class="space-x-2">
+              <a href="/admin/edit?file=${encodeURIComponent(file)}" class="text-blue-500 hover:underline">Edit</a>
+              <button data-file="${file}" class="delete-btn text-red-500 hover:underline">Delete</button>
+            </div>
+          `;
+          
+          booksList.appendChild(bookEl);
+        });
+        
+        // Add delete functionality
+        document.querySelectorAll('.delete-btn').forEach(btn => {
+          btn.addEventListener('click', async () => {
+            if (confirm('Are you sure you want to delete this book?')) {
+              const file = btn.getAttribute('data-file');
+              
+              try {
+                const apiUrl = window.location.hostname === 'localhost' 
+                  ? `http://localhost:3000/api/content/${file}`
+                  : `/api/content/${file}`;
+                  
+                const response = await fetch(apiUrl, {
+                  method: 'DELETE',
+                  headers: {
+                    'Authorization': 'Basic ' + btoa('admin:password') // In production, use proper auth
+                  }
+                });
+                
+                if (!response.ok) throw new Error('Failed to delete book');
+                
+                // Refresh the list
+                fetchBooks();
+              } catch (error) {
+                alert('Error deleting book: ' + error.message);
+              }
+            }
+          });
+        });
+      } else {
+        booksList.innerHTML = '<p>No books found.</p>';
+      }
+    } catch (error) {
+      document.getElementById('books-list').innerHTML = `<p class="text-red-500">Error: ${error.message}</p>`;
+    }
+  }
+  
+  // Load books when page loads
+  document.addEventListener('DOMContentLoaded', fetchBooks);
+</script>
+</SiteLayout>

src/pages/admin/login.astro

@@ -0,0 +1,49 @@
+---
+import SiteLayout from '../../components/SiteLayout.astro';
+
+let error = '';
+if (Astro.request.method === 'POST') {
+  try {
+    const data = await Astro.request.formData();
+    const username = data.get('username');
+    const password = data.get('password');
+    
+    // Simple client-side auth - real auth happens in the API
+    if (username === 'admin' && password === 'password') {
+      // Store authentication in a cookie or localStorage in a real app
+      return Astro.redirect('/admin');
+    } else {
+      error = 'Invalid username or password';
+    }
+  } catch (e) {
+    error = 'An error occurred during login';
+  }
+}
+---
+
+<SiteLayout title="Admin Login">
+  <div class="max-w-md mx-auto mt-10 p-6 bg-white rounded-lg shadow-md">
+    <h1 class="text-2xl font-bold mb-6 text-center">Content Admin Login</h1>
+    
+    {error && <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4">{error}</div>}
+    
+    <form method="POST" class="space-y-4">
+      <div>
+        <label for="username" class="block text-sm font-medium text-gray-700">Username</label>
+        <input type="text" id="username" name="username" required
+          class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500">
+      </div>
+      
+      <div>
+        <label for="password" class="block text-sm font-medium text-gray-700">Password</label>
+        <input type="password" id="password" name="password" required
+          class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500">
+      </div>
+      
+      <button type="submit" 
+        class="w-full flex justify-center py-2 px-4 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
+        Sign in
+      </button>
+    </form>
+  </div>
+</SiteLayout>

start.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+# Start API server
+cd /app/api && node server.js &
+
+# Start NGINX
+nginx -g "daemon off;"