/*
* Local server for the SDE meeting toolkit.
* Serves the static tool files.
* Proxies AI draft requests to the Anthropic API, so the API key
* stays on the server and never appears in the browser.
*/
const http = require('http');
const fs = require('fs');
const path = require('path');
const ROOT = __dirname;
const PORT = process.env.PORT || 5173;
const ANTHROPIC_VERSION = '2023-06-01';
const MIME = {
'.html': 'text/html; charset=utf-8',
'.js': 'text/javascript; charset=utf-8',
'.css': 'text/css; charset=utf-8',
'.json': 'application/json; charset=utf-8',
'.svg': 'image/svg+xml',
'.png': 'image/png',
'.skill': 'application/zip'
};
function loadEnvFile() {
const envPath = path.join(ROOT, '.env');
let content;
try {
content = fs.readFileSync(envPath, 'utf8');
} catch (err) {
return; // no .env file; that is allowed, the AI draft route will report it
}
content.split('\n').forEach((line) => {
const trimmed = line.trim();
if (!trimmed || trimmed.startsWith('#')) return;
const idx = trimmed.indexOf('=');
if (idx === -1) return;
const key = trimmed.slice(0, idx).trim();
const value = trimmed.slice(idx + 1).trim().replace(/^["']|["']$/g, '');
if (key && !(key in process.env)) process.env[key] = value;
});
}
loadEnvFile();
function sendJson(res, status, obj) {
const body = JSON.stringify(obj);
res.writeHead(status, { 'Content-Type': 'application/json; charset=utf-8' });
res.end(body);
}
function proxyToClaude(req, res) {
if (!process.env.ANTHROPIC_API_KEY) {
sendJson(res, 500, {
error: 'ANTHROPIC_API_KEY is not set. Add it to the .env file in this folder, then restart the server.'
});
return;
}
let body = '';
req.on('data', (chunk) => { body += chunk; });
req.on('end', async () => {
try {
const upstream = await fetch('https://api.anthropic.com/v1/messages', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-api-key': process.env.ANTHROPIC_API_KEY,
'anthropic-version': ANTHROPIC_VERSION
},
body
});
const text = await upstream.text();
res.writeHead(upstream.status, { 'Content-Type': 'application/json; charset=utf-8' });
res.end(text);
} catch (err) {
sendJson(res, 502, { error: 'Could not reach the Anthropic API: ' + err.message });
}
});
}
function serveStatic(req, res) {
const urlPath = decodeURIComponent(req.url.split('?')[0]);
if (urlPath === '/') {
const index = `
SDE Meeting Toolkit
`;
res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' });
res.end(index);
return;
}
const filePath = path.normalize(path.join(ROOT, urlPath));
if (!filePath.startsWith(ROOT)) {
res.writeHead(403);
res.end('Forbidden');
return;
}
fs.readFile(filePath, (err, data) => {
if (err) {
res.writeHead(404, { 'Content-Type': 'text/plain' });
res.end('Not found: ' + urlPath);
return;
}
const ext = path.extname(filePath);
res.writeHead(200, { 'Content-Type': MIME[ext] || 'application/octet-stream' });
res.end(data);
});
}
const server = http.createServer((req, res) => {
if (req.method === 'POST' && req.url === '/api/claude') {
proxyToClaude(req, res);
return;
}
if (req.method === 'GET') {
serveStatic(req, res);
return;
}
res.writeHead(405, { 'Content-Type': 'text/plain' });
res.end('Method not allowed');
});
server.listen(PORT, () => {
console.log(`SDE meeting toolkit running at http://localhost:${PORT}`);
console.log(process.env.ANTHROPIC_API_KEY ? 'ANTHROPIC_API_KEY loaded: AI draft button is live.' : 'No ANTHROPIC_API_KEY found: AI draft button will return an error until you add one to .env.');
});