modules/propresenter-looks/tools/pp-looks-mock.js

@@ -0,0 +1,69 @@
+#!/usr/bin/env node
+'use strict';
+
+/**
+ * Mock ProPresenter looks API, for developing the ProPresenter Look module
+ * without the real thing.
+ *
+ *   node tools/pp-looks-mock.js [port]        (default 1601)
+ *     --every <seconds>   how often the live look changes (default 8)
+ *     --password <pw>     demand ?password=<pw> like a locked ProPresenter
+ *     --no-list           answer 404 for /v1/looks (an older ProPresenter)
+ *
+ * Point the module at host 127.0.0.1 and this port. Every few changes the
+ * live look is "modified by hand", so it matches no saved look.
+ */
+
+const http = require('http');
+const crypto = require('crypto');
+
+const args = process.argv.slice(2);
+const flag = (name) => {
+  const i = args.indexOf(name);
+  return i >= 0 ? args[i + 1] : undefined;
+};
+const port = Number(args.find((a) => /^\d+$/.test(a))) || 1601;
+const every = Number(flag('--every')) || 8;
+const password = flag('--password') || '';
+const noList = args.includes('--no-list');
+
+const screen = (on) => ({ video_input: false, media: on, slide: on, announcements: on, props: on, messages: on, presentation: null, mask: null });
+const saved = ['Normal', 'Lyrics Only', 'Sermon', 'Countdown', 'Video Only'].map((name, index) => ({
+  id: { uuid: crypto.randomUUID(), name, index },
+  screens: [screen(true), screen(index !== 4)],
+}));
+
+let live = 0;
+let modified = false;
+let changes = 0;
+const liveUuid = crypto.randomUUID();
+
+setInterval(() => {
+  changes += 1;
+  modified = changes % 4 === 0;
+  if (!modified) live = (live + 1) % saved.length;
+  console.log(`live look → ${saved[live].id.name}${modified ? ' (modified)' : ''}`);
+}, every * 1000);
+
+function currentLook() {
+  return {
+    id: { uuid: liveUuid, name: saved[live].id.name, index: modified ? saved.length : live },
+    screens: saved[live].screens,
+  };
+}
+
+http.createServer((req, res) => {
+  const url = new URL(req.url, 'http://x');
+  const send = (code, body) => {
+    res.writeHead(code, { 'Content-Type': 'application/json' });
+    res.end(body === undefined ? '' : JSON.stringify(body));
+  };
+  if (password && url.searchParams.get('password') !== password) return send(401, { error: 'password' });
+  if (url.pathname === '/version') return send(200, { name: 'Mock', platform: 'mac', os_version: '15', host_description: 'ProPresenter 21.0 (mock)' });
+  if (url.pathname === '/v1/looks') return noList ? send(404) : send(200, saved);
+  if (url.pathname === '/v1/look/current') return send(200, currentLook());
+  send(404);
+}).listen(port, () => {
+  console.log(`mock ProPresenter looks on http://127.0.0.1:${port} — live look changes every ${every}s`);
+  console.log(`live look → ${saved[live].id.name}`);
+});