init commit

remotion/node_modules/@remotion/studio/dist/helpers/use-file-existence.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.useFileExistence = void 0;
+const react_1 = require("react");
+const actions_1 = require("../components/RenderQueue/actions");
+const client_id_1 = require("./client-id");
+const useFileExistence = (outName) => {
+    const [exists, setExists] = (0, react_1.useState)(false);
+    const { previewServerState: state, subscribeToEvent } = (0, react_1.useContext)(client_id_1.StudioServerConnectionCtx);
+    const clientId = state.type === 'connected' ? state.clientId : undefined;
+    const currentOutName = (0, react_1.useRef)('');
+    currentOutName.current = outName;
+    (0, react_1.useEffect)(() => {
+        if (!clientId) {
+            return;
+        }
+        (0, actions_1.subscribeToFileExistenceWatcher)({
+            file: outName,
+            clientId,
+        }).then((_exists) => {
+            if (currentOutName.current === outName) {
+                setExists(_exists);
+            }
+        });
+        return () => {
+            (0, actions_1.unsubscribeFromFileExistenceWatcher)({ file: outName, clientId });
+        };
+    }, [clientId, outName]);
+    (0, react_1.useEffect)(() => {
+        const listener = (event) => {
+            if (event.type !== 'watched-file-deleted') {
+                return;
+            }
+            if (event.file !== currentOutName.current) {
+                return;
+            }
+            if (currentOutName.current === outName) {
+                setExists(false);
+            }
+        };
+        const unsub = subscribeToEvent('watched-file-deleted', listener);
+        return () => {
+            unsub();
+        };
+    }, [outName, subscribeToEvent]);
+    (0, react_1.useEffect)(() => {
+        const listener = (event) => {
+            if (event.type !== 'watched-file-undeleted') {
+                return;
+            }
+            if (event.file !== outName) {
+                return;
+            }
+            if (currentOutName.current === outName) {
+                setExists(true);
+            }
+        };
+        const unsub = subscribeToEvent('watched-file-undeleted', listener);
+        return () => {
+            unsub();
+        };
+    }, [outName, subscribeToEvent]);
+    return exists;
+};
+exports.useFileExistence = useFileExistence;