1 files changed, 40 insertions, 0 deletions
diff --git a/src/containers/PollCreation/useS3Preupload.ts b/src/containers/PollCreation/useS3Preupload.ts
new file mode 100644
index 0000000..ef3a408
--- /dev/null
+++ b/src/containers/PollCreation/useS3Preupload.ts
@@ -0,0 +1,40 @@
+import { useState, useCallback, useMemo } from 'react';
+import uploadFileToS3 from '../../utils/uploadFileToS3';
+
+
+interface Hook {
+  setValue: (value: File | string | undefined) => void;
+  isReady: boolean;
+  resolve: () => Promise<string>;
+  progress: number;
+}
+
+export default (): Hook => {
+  const [url, setUrl] = useState<string>();
+  const [file, setFile] = useState<File>();
+  const [progress, setProgress] = useState<number>(0);
+
+  const isReady = useMemo(() => Boolean(file || url), [file, url]);
+
+  const setValue: Hook['setValue'] = useCallback(value => {
+    if (value instanceof File) {
+      setFile(value);
+      setUrl(undefined);
+    } else {
+      setUrl(value);
+      setFile(undefined);
+    }
+  }, [setUrl, setFile]);
+
+  const resolve = useCallback(async (quality?: number): Promise<string> => {
+    if (file) return uploadFileToS3(file, quality, setProgress);
+    return url || '';
+  }, [file, url]);
+
+  return {
+    setValue,
+    isReady,
+    resolve,
+    progress
+  };
+};