tus: don't allow 'notify' to be sent again (#1778)

## Ticket
725

## Issue
Upload a video. When `notify` is sent at the end of the tus upload, refresh immediately. The GUI allowed the user to resume the upload, but the ID is no longer present in the server.

## Approach
Until the polling API for `notify` is available, we can only assume the best and let the user know how to handle it.
- Store the "notify was sent" state.
- Show a dialog explaining the situation.

Thought of trying to make `claim_list` calls behind the scenes to clear itself, but it doesn't handle the case of `notify` actually failing. The best is to just let the user handle it for now.

Note that for the case of `onerror` actually received, we still retry since a network error could be the culprit (`notify` wasn't sent).

static/app-strings.json

@@ -1147,6 +1147,13 @@
   "Stopped. Duplicate session detected.": "Stopped. Duplicate session detected.",
   "File being uploaded in another tab or window.": "File being uploaded in another tab or window.",
   "There are pending uploads.": "There are pending uploads.",
+  "Processing file. Please wait...": "Processing file. Please wait...",
+  "File uploaded to server.": "File uploaded to server.",
+  "Remove entry?": "Remove entry?",
+  "The file was successfully uploaded, but we could not retrieve the confirmation status.": "The file was successfully uploaded, but we could not retrieve the confirmation status.",
+  "Wait 5-10 minutes, then refresh and check the Uploads list and Wallet transactions before attempting to re-upload.": "Wait 5-10 minutes, then refresh and check the Uploads list and Wallet transactions before attempting to re-upload.",
+  "This entry can be safely removed if the transaction is visible in those pages.": "This entry can be safely removed if the transaction is visible in those pages.",
+  "Press OK to clear this entry from the \"Currently Uploading\" list.": "Press OK to clear this entry from the \"Currently Uploading\" list.",
   "Use a URL": "Use a URL",
   "Edit Cover Image": "Edit Cover Image",
   "Cover Image": "Cover Image",

ui/component/webUploadList/internal/web-upload-item.jsx

@@ -75,7 +75,11 @@ export default function WebUploadItem(props: Props) {
     }
 
     if (!uploader) {
-      return __('Stopped.');
+      if (status === 'notify') {
+        return __('File uploaded to server.');
+      } else {
+        return __('Stopped.');
+      }
     }
 
     if (resumable) {
@@ -87,6 +91,8 @@ export default function WebUploadItem(props: Props) {
             return __('Failed.');
           case 'conflict':
             return __('Stopped. Duplicate session detected.');
+          case 'notify':
+            return __('Processing file. Please wait...');
           default:
             return status;
         }
@@ -108,7 +114,14 @@ export default function WebUploadItem(props: Props) {
       // Should still be uploading. Don't show.
       return null;
     } else {
-      // Refreshed or connection broken.
+      // Refreshed or connection broken ...
+
+      if (status === 'notify') {
+        // ... but 'notify' sent, so we have to assume it is processed.
+        // Can't do much until the polling API is available.
+        return null;
+      }
+
       const isFileActive = file instanceof File;
       return (
         <Button
@@ -129,6 +142,42 @@ export default function WebUploadItem(props: Props) {
 
   function getCancelButton() {
     if (!locked) {
+      if (status === 'notify') {
+        return (
+          <Button
+            button="link"
+            label={__('Remove')}
+            onClick={() => {
+              doOpenModal(MODALS.CONFIRM, {
+                title: __('Remove entry?'),
+                body: (
+                  <>
+                    <p>
+                      {__('The file was successfully uploaded, but we could not retrieve the confirmation status.')}
+                    </p>
+                    <p>
+                      {__(
+                        'Wait 5-10 minutes, then refresh and check the Uploads list and Wallet transactions before attempting to re-upload.'
+                      )}
+                    </p>
+                    <p className="section__subtitle">
+                      {__('This entry can be safely removed if the transaction is visible in those pages.')}
+                    </p>
+                    <div className="help--warning">
+                      <p>{__('Press OK to clear this entry from the "Currently Uploading" list.')}</p>
+                    </div>
+                  </>
+                ),
+                onConfirm: (closeModal) => {
+                  doUpdateUploadRemove(params.guid);
+                  closeModal();
+                },
+              });
+            }}
+          />
+        );
+      }
+
       return <Button label={__('Cancel')} button="link" onClick={handleCancel} />;
     }
   }

ui/redux/reducers/publish.js

@@ -239,8 +239,14 @@ export const publishReducer = handleActions(
             uploadKeys.forEach((key) => {
               const params = newPublish.currentUploads[key].params;
               if (!params || Object.keys(params).length === 0) {
+                // The intended payload for the API is corrupted, so no point
+                // retaining. Remove from the pending-uploads list.
                 delete newPublish.currentUploads[key];
               } else {
+                // The data is still good, so we can resume upload. We just need
+                // to delete the previous reference of the tus-uploader (no
+                // longer functional, will be re-created). An empty 'uploader'
+                // also tells the GUI that we just rebooted.
                 delete newPublish.currentUploads[key].uploader;
               }
             });

web/setup/publish-v2.js

@@ -123,6 +123,9 @@ export function makeResumableUploadRequest(
           xhr.setRequestHeader('Tus-Resumable', '1.0.0');
           xhr.setRequestHeader(X_LBRY_AUTH_TOKEN, token);
           xhr.responseType = 'json';
+          xhr.onloadstart = () => {
+            window.store.dispatch(doUpdateUploadProgress({ guid, status: 'notify' }));
+          };
           xhr.onload = () => {
             window.store.dispatch(doUpdateUploadRemove(guid));
             resolve(xhr);