//
// SPDX-License-Identifier: AGPL-3.0
+import { Dispatch } from 'redux';
+import { RootState } from 'store/store';
+import { ServiceRepository } from 'services/services';
import { Middleware } from "redux";
-import { dataExplorerActions, bindDataExplorerActions } from "./data-explorer-action";
+import { dataExplorerActions, bindDataExplorerActions, DataTableRequestState } from "./data-explorer-action";
+import { getDataExplorer } from "./data-explorer-reducer";
import { DataExplorerMiddlewareService } from "./data-explorer-middleware-service";
export const dataExplorerMiddleware = (service: DataExplorerMiddlewareService): Middleware => api => next => {
};
dataExplorerActions.match(action, {
SET_PAGE: handleAction(() => {
- api.dispatch(actions.REQUEST_ITEMS());
+ api.dispatch(actions.REQUEST_ITEMS(false));
}),
SET_ROWS_PER_PAGE: handleAction(() => {
- api.dispatch(actions.REQUEST_ITEMS());
+ api.dispatch(actions.REQUEST_ITEMS(true));
}),
SET_FILTERS: handleAction(() => {
api.dispatch(actions.RESET_PAGINATION());
- api.dispatch(actions.REQUEST_ITEMS());
+ api.dispatch(actions.REQUEST_ITEMS(true));
}),
TOGGLE_SORT: handleAction(() => {
- api.dispatch(actions.REQUEST_ITEMS());
+ api.dispatch(actions.REQUEST_ITEMS(true));
}),
SET_EXPLORER_SEARCH_VALUE: handleAction(() => {
api.dispatch(actions.RESET_PAGINATION());
- api.dispatch(actions.REQUEST_ITEMS());
+ api.dispatch(actions.REQUEST_ITEMS(true));
}),
- REQUEST_ITEMS: handleAction(() => {
- service.requestItems(api);
+ REQUEST_ITEMS: handleAction(({ criteriaChanged }) => {
+ api.dispatch<any>(async (dispatch: Dispatch, getState: () => RootState, services: ServiceRepository) => {
+ while (true) {
+ let de = getDataExplorer(getState().dataExplorer, service.getId());
+ switch (de.requestState) {
+ case DataTableRequestState.IDLE:
+ // Start a new request.
+ try {
+ dispatch(actions.SET_REQUEST_STATE({ requestState: DataTableRequestState.PENDING }));
+ await service.requestItems(api, criteriaChanged);
+ } catch {
+ dispatch(actions.SET_REQUEST_STATE({ requestState: DataTableRequestState.NEED_REFRESH }));
+ }
+ // Now check if the state is still PENDING, if it moved to NEED_REFRESH
+ // then we need to reissue requestItems
+ de = getDataExplorer(getState().dataExplorer, service.getId());
+ const complete = (de.requestState === DataTableRequestState.PENDING);
+ dispatch(actions.SET_REQUEST_STATE({ requestState: DataTableRequestState.IDLE }));
+ if (complete) {
+ return;
+ }
+ break;
+ case DataTableRequestState.PENDING:
+ // State is PENDING, move it to NEED_REFRESH so that when the current request finishes it starts a new one.
+ dispatch(actions.SET_REQUEST_STATE({ requestState: DataTableRequestState.NEED_REFRESH }));
+ return;
+ case DataTableRequestState.NEED_REFRESH:
+ // Nothing to do right now.
+ return;
+ }
+ }
+ });
}),
default: () => next(action)
});