Simplify proxy routing and configuration

test/web/client-controls.test.js

@@ -0,0 +1,46 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import {
+  connectionAction,
+  formatConnectionDuration,
+  localProxyUrls,
+  subscriptionDomain,
+} from '../../src/web/utils/clientControls.js';
+
+test('connection button chooses the only valid client action', () => {
+  assert.deepEqual(connectionAction({ connected: true }), { type: 'stop' });
+  assert.deepEqual(connectionAction({ selectedTag: 'nl-amsterdam' }), {
+    type: 'apply',
+    selectedTag: 'nl-amsterdam',
+  });
+  assert.deepEqual(connectionAction({ configExists: true }), { type: 'restart' });
+  assert.equal(connectionAction({}), null);
+});
+
+test('connection duration is derived from the backend start time', () => {
+  const startedAt = '2026-07-10T10:00:00.000Z';
+  const now = Date.parse('2026-07-11T12:03:04.900Z');
+
+  assert.equal(formatConnectionDuration(startedAt, now), '26:03:04');
+  assert.equal(formatConnectionDuration(null, now), '00:00:00');
+});
+
+test('saved subscription is reduced to its public domain', () => {
+  assert.equal(subscriptionDomain('sub.example.com/…'), 'sub.example.com');
+  assert.equal(subscriptionDomain(''), '');
+});
+
+test('local proxy exposes both supported URLs', () => {
+  assert.deepEqual(localProxyUrls(18080), {
+    socks5: 'socks5://127.0.0.1:18080',
+    http: 'http://127.0.0.1:18080',
+  });
+});
+
+test('local proxy defaults to the macOS client port', () => {
+  assert.deepEqual(localProxyUrls(), {
+    socks5: 'socks5://127.0.0.1:8082',
+    http: 'http://127.0.0.1:8082',
+  });
+});