init commit

remotion/node_modules/@remotion/studio-server/dist/preview-server/live-events.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.setLiveEventsListener = exports.waitForLiveEventsListener = exports.makeLiveEventsRouter = void 0;
+const server_ready_1 = require("../server-ready");
+const file_existence_watchers_1 = require("./file-existence-watchers");
+const serializeMessage = (message) => {
+    return `data: ${JSON.stringify(message)}\n\n`;
+};
+let printPortMessageTimeout = null;
+const makeLiveEventsRouter = (logLevel) => {
+    let clients = [];
+    const router = (request, response) => {
+        const headers = {
+            'content-type': 'text/event-stream;charset=utf-8',
+            connection: 'keep-alive',
+            'cache-control': 'no-cache',
+        };
+        response.writeHead(200, headers);
+        response.write('\n');
+        if (request.method === 'OPTIONS') {
+            response.end();
+            return Promise.resolve();
+        }
+        const clientId = String(Math.random());
+        response.write(serializeMessage({ type: 'init', clientId }));
+        const newClient = {
+            id: clientId,
+            response,
+        };
+        clients.push(newClient);
+        if (printPortMessageTimeout) {
+            clearTimeout(printPortMessageTimeout);
+        }
+        request.on('close', () => {
+            (0, file_existence_watchers_1.unsubscribeClientFileExistenceWatchers)(clientId);
+            clients = clients.filter((client) => client.id !== clientId);
+            // If all clients disconnected, print a comment so user can easily restart it.
+            if (clients.length === 0) {
+                if (printPortMessageTimeout) {
+                    clearTimeout(printPortMessageTimeout);
+                }
+                printPortMessageTimeout = setTimeout(() => {
+                    (0, server_ready_1.printServerReadyComment)('To restart', logLevel);
+                }, 2500);
+            }
+        });
+        return Promise.resolve();
+    };
+    const sendEventToClient = (event) => {
+        clients.forEach((client) => {
+            client.response.write(serializeMessage(event));
+        });
+    };
+    return {
+        sendEventToClient,
+        router,
+        closeConnections: () => {
+            return Promise.all(clients.map((client) => {
+                return new Promise((resolve) => {
+                    client.response.end(() => {
+                        resolve();
+                    });
+                });
+            })).then(() => undefined);
+        },
+    };
+};
+exports.makeLiveEventsRouter = makeLiveEventsRouter;
+let liveEventsListener = null;
+const waiters = [];
+const waitForLiveEventsListener = () => {
+    if (liveEventsListener) {
+        return Promise.resolve(liveEventsListener);
+    }
+    return new Promise((resolve) => {
+        waiters.push((list) => {
+            resolve(list);
+        });
+    });
+};
+exports.waitForLiveEventsListener = waitForLiveEventsListener;
+const setLiveEventsListener = (listener) => {
+    liveEventsListener = listener;
+    waiters.forEach((w) => w(listener));
+    return () => {
+        liveEventsListener = null;
+    };
+};
+exports.setLiveEventsListener = setLiveEventsListener;