Initial import of verae-access-web from zapier monorepo

src/gate.js

@@ -0,0 +1,50 @@
+const AUTHZ = (process.env.AUTHZ_URL || 'http://127.0.0.1:3020').replace(/\/$/, '');
+const BOOKS = (process.env.ACCOUNT_BALANCE_URL || 'http://127.0.0.1:3010').replace(/\/$/, '');
+
+export const PLANE = 'web';
+export const AUTHZ_CHECK = 'verae.access.authz.check';
+
+export async function check(subject, { principal, kind, payload } = {}) {
+  const r = await fetch(`${AUTHZ}/check`, {
+    method: 'POST',
+    headers: { 'content-type': 'application/json' },
+    body: JSON.stringify({ plane: PLANE, subject, principal, kind, payload }),
+  });
+  return { status: r.status, body: await r.json().catch(() => ({ allow: false })) };
+}
+
+export async function statement(customerId, principal) {
+  const gate = await check('verae.billing.statement.get', { principal });
+  if (!gate.body.allow) return { status: 403, body: gate.body };
+  const url = process.env.NATS_URL;
+  if (url) {
+    try {
+      const { connect, StringCodec } = await import('nats');
+      const nc = await connect({ servers: url.split(','), name: 'verae-access-web' });
+      const sc = StringCodec();
+      const m = await nc.request(
+        'verae.billing.statement.get',
+        sc.encode(JSON.stringify({ customerId, plane: PLANE, principal })),
+        { timeout: 2000 },
+      );
+      const out = JSON.parse(sc.decode(m.data) || '{}');
+      await nc.close();
+      return { status: 200, body: { ...out, source: 'nats', plane: PLANE } };
+    } catch {
+      /* HTTP fallback */
+    }
+  }
+  const r = await fetch(`${BOOKS}/statement/${customerId}`);
+  return { status: r.status, body: { ...(await r.json().catch(() => ({}))), source: 'account-balance', plane: PLANE } };
+}
+
+export async function reload(customerId, cents, principal) {
+  const gate = await check('verae.billing.balance.adjust', { principal, kind: 'reload' });
+  if (!gate.body.allow) return { status: 403, body: gate.body };
+  const r = await fetch(`${BOOKS}/adjust`, {
+    method: 'POST',
+    headers: { 'content-type': 'application/json' },
+    body: JSON.stringify({ customerId, cents, reason: 'reload', agent: principal || 'web', kind: 'reload' }),
+  });
+  return { status: r.status, body: { ...(await r.json().catch(() => ({}))), plane: PLANE } };
+}

src/server.js

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+#!/usr/bin/env node
+/** Direct customer web access. Not Zapier. NATS only after authz. */
+import http from 'node:http';
+import { PLANE, statement, reload } from './gate.js';
+
+const PORT = Number(process.env.PORT || 3021);
+
+const server = http.createServer(async (req, res) => {
+  const url = new URL(req.url || '/', `http://127.0.0.1:${PORT}`);
+  const json = (code, obj) => {
+    res.writeHead(code, { 'content-type': 'application/json' });
+    res.end(JSON.stringify(obj));
+  };
+  try {
+    if (req.method === 'GET' && url.pathname === '/health') {
+      return json(200, { ok: true, role: 'verae-access-web', plane: PLANE });
+    }
+    const st = url.pathname.match(/^\/statement\/([^/]+)$/);
+    if (req.method === 'GET' && st) {
+      const out = await statement(st[1], st[1]);
+      return json(out.status, out.body);
+    }
+    if (req.method === 'POST' && url.pathname === '/reload') {
+      const chunks = [];
+      for await (const c of req) chunks.push(c);
+      const body = JSON.parse(Buffer.concat(chunks).toString('utf8') || '{}');
+      const out = await reload(body.customerId, body.cents, body.customerId);
+      return json(out.status, out.body);
+    }
+    json(404, { error: 'not found' });
+  } catch (err) {
+    json(502, { error: err.message });
+  }
+});
+
+server.listen(PORT, '0.0.0.0', () => {
+  process.stdout.write(`verae-access-web http://0.0.0.0:${PORT}/ plane=${PLANE}\n`);
+});