Initial commit

shared/events.js

@@ -0,0 +1,42 @@
+const path = require('path');
+const { randomUUID } = require('crypto');
+const { eventsDir } = require('./paths');
+const { writeJson } = require('./fs');
+
+function dayString(timestamp) {
+  return timestamp.slice(0, 10);
+}
+
+async function emitEvent({
+  type,
+  resource_type,
+  resource_id,
+  request_id,
+  correlation_id,
+  payload,
+}) {
+  const timestamp = new Date().toISOString();
+  const event = {
+    event_id: randomUUID(),
+    schema_version: 'v1',
+    type,
+    resource_type,
+    resource_id,
+    timestamp,
+    request_id: request_id || null,
+    correlation_id: correlation_id || null,
+    payload: payload || {},
+  };
+
+  await writeJson(
+    path.join(eventsDir, dayString(timestamp), `${timestamp.replace(/[:.]/g, '-')}-${event.event_id}.json`),
+    event
+  );
+
+  return event;
+}
+
+module.exports = {
+  emitEvent,
+};
+