Expand typings to include hash stuff and expand the State type defini…

…tion more.

src/ui/public/state_management/state.d.ts

@@ -17,4 +17,10 @@
  * under the License.
  */
 
-export type State = Record<string, any>;
+export interface State {
+ [key: string]: any;
+ translateHashToRison: (
+ stateHashOrRison: string | string[] | undefined
+ ) => string | string[] | undefined;
+ getQueryParamName: () => string;
+}

src/ui/public/state_management/state_hashing/get_unhashable_states_provider.js → src/ui/public/state_management/state_hashing/get_unhashable_states_provider.ts

@@ -17,8 +17,12 @@
  * under the License.
  */
 
-export function getUnhashableStatesProvider(getAppState, globalState) {
- return function getUnhashableStates() {
+import { AppState } from '../app_state';
+import { GlobalState } from '../global_state';
+import { State } from '../state';
+
+export function getUnhashableStatesProvider(getAppState: () => AppState, globalState: GlobalState) {
+ return function getUnhashableStates(): State[] {
  return [getAppState(), globalState].filter(Boolean);
  };
 }

src/ui/public/state_management/state_hashing/unhash_query_string.js → src/ui/public/state_management/state_hashing/unhash_query_string.ts

@@ -18,8 +18,18 @@
  */
 
 import { mapValues } from 'lodash';
+import { ParsedUrlQuery } from 'querystring';
+import { State } from '../state';
 
-export function unhashQueryString(parsedQueryString, states) {
+/**
+ * Takes in a parsed url query and state objects, finding the state objects that match the query parameters and expanding
+ * the hashed state. For example, a url query string like '?_a=@12353&_g=@19028df' will become
+ * '?_a=[expanded app state here]&_g=[expanded global state here]. This is used when storeStateInSessionStorage is turned on.
+ */
+export function unhashQueryString(
+ parsedQueryString: ParsedUrlQuery,
+ states: State[]
+): ParsedUrlQuery {
  return mapValues(parsedQueryString, (val, key) => {
  const state = states.find(s => key === s.getQueryParamName());
  return state ? state.translateHashToRison(val) : val;