61 lines
1.6 KiB
TypeScript
61 lines
1.6 KiB
TypeScript
|
import {
|
||
|
|
ENTRIES_SUCCESS,
|
||
|
|
FILTER_ENTRIES_SUCCESS,
|
||
|
|
GROUP_ENTRIES_SUCCESS,
|
||
|
|
SORT_ENTRIES_SUCCESS,
|
||
|
|
} from '../actions/entries';
|
||
|
|
import { Cursor } from '../lib/util';
|
||
|
|
|
||
|
|
import type { EntriesAction } from '../actions/entries';
|
||
|
|
import type { CursorStore } from '../lib/util/Cursor';
|
||
|
|
|
||
|
|
export interface CursorsState {
|
||
|
|
cursorsByType: {
|
||
|
|
collectionEntries: Record<string, CursorStore>;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function cursors(
|
||
|
|
state: CursorsState = { cursorsByType: { collectionEntries: {} } },
|
||
|
|
action: EntriesAction,
|
||
|
|
): CursorsState {
|
||
|
|
switch (action.type) {
|
||
|
|
case ENTRIES_SUCCESS: {
|
||
|
|
return {
|
||
|
|
cursorsByType: {
|
||
|
|
collectionEntries: {
|
||
|
|
...state.cursorsByType.collectionEntries,
|
||
|
|
[action.payload.collection]: Cursor.create(action.payload.cursor).store,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
};
|
||
|
|
}
|
||
|
|
case FILTER_ENTRIES_SUCCESS:
|
||
|
|
case GROUP_ENTRIES_SUCCESS:
|
||
|
|
case SORT_ENTRIES_SUCCESS: {
|
||
|
|
const newCollectionEntries = {
|
||
|
|
...state.cursorsByType.collectionEntries,
|
||
|
|
};
|
||
|
|
|
||
|
|
delete newCollectionEntries[action.payload.collection];
|
||
|
|
|
||
|
|
return {
|
||
|
|
cursorsByType: {
|
||
|
|
collectionEntries: newCollectionEntries,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
return state;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Since pagination can be used for a variety of views (collections
|
||
|
|
// and searches are the most common examples), we namespace cursors by
|
||
|
|
// their type before storing them in the state.
|
||
|
|
export function selectCollectionEntriesCursor(state: CursorsState, collectionName: string) {
|
||
|
|
return new Cursor(state.cursorsByType.collectionEntries[collectionName]);
|
||
|
|
}
|
||
|
|
|
||
|
|
export default cursors;
|