function reduce()

in packages/dag-history-component/src/state/reducers/views.ts [24:59]

• 35 lines of code
• 7 McCabe index (conditional complexity)

function reduce(
	state: State,
	action: ReduxActions.Action<any>,
	config: ComponentConfiguration<any>,
) {
	if (!state) {
		state = {
			...INITIAL_STATE,
			...config.initialViewState,
		}
	}
	let result = state
	if (action.type === SELECT_MAIN_VIEW) {
		result = {
			...state,
			mainView: action.payload,
		}
	} else if (action.type === SELECT_HISTORY_TYPE) {
		result = {
			...state,
			historyType: action.payload,
		}
	} else if (action.type === TOGGLE_BRANCH_CONTAINER) {
		result = {
			...state,
			branchContainerExpanded: !state.branchContainerExpanded,
		}
	} else if (!isHistoryAction(action) && config.actionFilter(action.type)) {
		// Insertable actions clear the pinned state
		result = {
			...state,
			mainView: ComponentView.HISTORY,
		}
	}
	return result
}