43 lines
1.5 KiB
JavaScript
43 lines
1.5 KiB
JavaScript
import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses';
|
|
import { TIMELINE_DELETE } from '../actions/timelines';
|
|
import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
|
|
|
|
const initialState = ImmutableMap({
|
|
ancestors: ImmutableMap(),
|
|
descendants: ImmutableMap(),
|
|
});
|
|
|
|
const normalizeContext = (state, id, ancestors, descendants) => {
|
|
const ancestorsIds = ancestors.map(ancestor => ancestor.get('id'));
|
|
const descendantsIds = descendants.map(descendant => descendant.get('id'));
|
|
|
|
return state.withMutations(map => {
|
|
map.setIn(['ancestors', id], ancestorsIds);
|
|
map.setIn(['descendants', id], descendantsIds);
|
|
});
|
|
};
|
|
|
|
const deleteFromContexts = (state, id) => {
|
|
state.getIn(['descendants', id], ImmutableList()).forEach(descendantId => {
|
|
state = state.updateIn(['ancestors', descendantId], ImmutableList(), list => list.filterNot(itemId => itemId === id));
|
|
});
|
|
|
|
state.getIn(['ancestors', id], ImmutableList()).forEach(ancestorId => {
|
|
state = state.updateIn(['descendants', ancestorId], ImmutableList(), list => list.filterNot(itemId => itemId === id));
|
|
});
|
|
|
|
state = state.deleteIn(['descendants', id]).deleteIn(['ancestors', id]);
|
|
|
|
return state;
|
|
};
|
|
|
|
export default function contexts(state = initialState, action) {
|
|
switch(action.type) {
|
|
case CONTEXT_FETCH_SUCCESS:
|
|
return normalizeContext(state, action.id, fromJS(action.ancestors), fromJS(action.descendants));
|
|
case TIMELINE_DELETE:
|
|
return deleteFromContexts(state, action.id);
|
|
default:
|
|
return state;
|
|
}
|
|
};
|