lbry-desktop/ui/redux/selectors/notifications.js
infinite-persistence b8ec0c9967 Augment doNotificationList to get a filtered list.
Initially, the filtered list was done at the component level, and the list was simply a subset of `notifications`. But due to the limit issue explained in 5694, we now query the filtered list instead.

Considerations:
- The filtered list could contain items not listed in the 'All' list. We could add a string at the bottom of 'All' that says "not all items retrieved" if this confuses the user.
- The unseen count needs to be based on 'All' and not the filtered one, so that data needs to be stashed somehow (can't re-use the array).

Use 2 arrays for now instead of trying to accumulate "all" and "filtered" into 1 array.
2021-04-08 14:28:21 -04:00

53 lines
1.6 KiB
JavaScript

import { createSelector } from 'reselect';
export const selectState = (state) => state.notifications || {};
export const selectNotifications = createSelector(selectState, (state) => state.notifications);
export const selectNotificationsFiltered = createSelector(selectState, (state) => state.notificationsFiltered);
export const makeSelectNotificationForCommentId = (id) =>
createSelector(selectNotifications, (notifications) => {
const match =
notifications &&
notifications.find(
(n) =>
n.notification_parameters &&
n.notification_parameters.dynamic &&
n.notification_parameters.dynamic.hash === id
);
return match;
});
export const selectIsFetchingNotifications = createSelector(selectState, (state) => state.fetchingNotifications);
export const selectUnreadNotificationCount = createSelector(selectNotifications, (notifications) => {
return notifications ? notifications.filter((notification) => !notification.is_read).length : 0;
});
export const selectUnseenNotificationCount = createSelector(selectNotifications, (notifications) => {
return notifications ? notifications.filter((notification) => !notification.is_seen).length : 0;
});
export const selectToast = createSelector(selectState, (state) => {
if (state.toasts.length) {
const { id, params } = state.toasts[0];
return {
id,
...params,
};
}
return null;
});
export const selectError = createSelector(selectState, (state) => {
if (state.errors.length) {
const { error } = state.errors[0];
return {
error,
};
}
return null;
});