Reducers

Reducers handle updating the data presented by a feature.

Data changes

.withServiceReducer(.productListService)

Reducer to update the state when the ProductList is (or will be) retrieved or updated in response to service actions. This is the main reducer that powers the Product List feature.

Handles the following actions:

ServiceAction.ProductList.fetch: Updates state.data to a paging state of .loading which is presented as a loading screen.

ServiceAction.ProductList.fetchPage: Updates state.data.next to .loading which is presented as a loading spinner at the bottom to show it is loading the next page.

ServiceAction.ProductList.fetched: Updates the state.data to either failure which is presented by an ErrorView, or the ProductList data which is presented by the ProductListView. Does nothing if the filters and sort do not match those of the current state.

ServiceAction.ProductList.fetchedPage: Updates either the state.data.next to failure which is presented by a CompactErrorView at the bottom, or the state.data which refreshes the currently presented ProductListView. Does nothing if the filters and sort do not match those of the current state.

Filter changes

.withFilterSelectionReducer(.filterSelection)

Reducer to update the state when the Filter selection is changed in response to the Filter Selection delegate middleware.

Handles the following actions:

FilterSelectionAction: Updates state.filters.selected with the new filters value.

Sort order changes

.withSortSelectionReducer(.sortSelection)

Reducer to update the state when the SortOrder selection is changed in response to the Sort Selection delegate middleware.

Handles the following actions:

SortSelectionAction: Updates state.sort.selected with the new sort order value.