Build: Migrate @storybook/manager-api to strict TS

code/lib/manager-api/src/index.tsx

@@ -77,7 +77,7 @@ export { default as merge } from './lib/merge';
 export type { Options as StoreOptions, Listener as ChannelListener };
 export { ActiveTabs };
 
-export const ManagerContext = createContext({ api: undefined, state: getInitialState({}) });
+export const ManagerContext = createContext({ api: undefined!, state: getInitialState({}!) });
 
 export type State = layout.SubState &
   stories.SubState &
@@ -206,7 +206,7 @@ class ManagerProvider extends Component<ManagerProviderProps, State> {
     );
 
     // Create our initial state by combining the initial state of all modules, then overlaying any saved state
-    const state = getInitialState(this.state, ...this.modules.map((m) => m.state));
+    const state = getInitialState(this.state, ...this.modules.map((m) => m.state!));
 
     // Get our API by combining the APIs exported by each module
     const api: API = Object.assign(this.api, { navigate }, ...this.modules.map((m) => m.api));
@@ -223,10 +223,10 @@ class ManagerProvider extends Component<ManagerProviderProps, State> {
         path: props.path,
         refId: props.refId,
         viewMode: props.viewMode,
-        storyId: props.storyId,
+        storyId: props.storyId!,
       };
     }
-    return null;
+    return null!;
   }
 
   shouldComponentUpdate(nextProps: ManagerProviderProps, nextState: State): boolean {
@@ -245,7 +245,7 @@ class ManagerProvider extends Component<ManagerProviderProps, State> {
   initModules = () => {
     // Now every module has had a chance to set its API, call init on each module which gives it
     // a chance to do things that call other modules' APIs.
-    this.modules.forEach((module) => {
+    this.modules.forEach((module: any) => {
       if ('init' in module) {
         module.init();
       }
@@ -305,11 +305,12 @@ function ManagerConsumer<P = Combo>({
   const comboData = filterer.current(managerContext);
 
   const comboDataArray = useMemo(() => {
+    // @ts-expect-error (No overload matches this call)
     return [...Object.entries(comboData).reduce((acc, keyval) => acc.concat(keyval), [])];
   }, [managerContext.state]);
 
   return useMemo(() => {
-    const Child = renderer.current as FC<P>;
+    const Child: any = renderer.current as FC<P>;
 
     return <Child {...comboData} />;
   }, comboDataArray);
@@ -381,14 +382,14 @@ export const useChannel = (eventMap: API_EventMap, deps: any[] = []) => {
 
 export function useStoryPrepared(storyId?: StoryId) {
   const api = useStorybookApi();
-  return api.isPrepared(storyId);
+  return api.isPrepared(storyId!);
 }
 
 export function useParameter<S>(parameterKey: string, defaultValue?: S) {
   const api = useStorybookApi();
 
   const result = api.getCurrentParameter<S>(parameterKey);
-  return orDefault<S>(result, defaultValue);
+  return orDefault<S>(result, defaultValue!);
 }
 
 // cache for taking care of HMR
@@ -412,6 +413,7 @@ export function useSharedState<S>(stateId: string, defaultState?: S) {
 
   useEffect(() => {
     if (quicksync) {
+      // @ts-expect-error (Argument of type 'S | undefined' is not assignable)
       api.setAddonState<S>(stateId, defaultState);
     }
   }, [quicksync]);
@@ -490,7 +492,7 @@ export function useArgs(): [Args, (newArgs: Args) => void, (argNames?: string[])
     [data, resetStoryArgs]
   );
 
-  return [args, updateArgs, resetArgs];
+  return [args!, updateArgs, resetArgs];
 }
 
 export function useGlobals(): [Args, (newGlobals: Args) => void] {

code/lib/manager-api/src/lib/addons.ts

@@ -64,7 +64,7 @@ export class AddonStore {
       this.setChannel(mockChannel());
     }
 
-    return this.channel;
+    return this.channel!;
   };
 
   /**
@@ -105,11 +105,10 @@ export class AddonStore {
       | Addon_TypesEnum.experimental_PAGE
       | Addon_TypesEnum.experimental_SIDEBAR_BOTTOM
       | Addon_TypesEnum.experimental_SIDEBAR_TOP
-  >(type: T): Addon_Collection<Addon_TypesMapping[T]> {
+  >(type: T): Addon_Collection<Addon_TypesMapping[T]> | any {
     if (!this.elements[type]) {
       this.elements[type] = {};
     }
-    // @ts-expect-error (Kaspar told me to do this)
     return this.elements[type];
   }
 
@@ -185,7 +184,7 @@ export class AddonStore {
   };
 
   loadAddons = (api: any) => {
-    Object.values(this.loaders).forEach((value) => value(api));
+    Object.values(this.loaders).forEach((value: any) => value(api));
   };
 }
 

code/lib/manager-api/src/lib/events.ts

@@ -17,10 +17,10 @@ interface Meta {
 
 export const getEventMetadata = (context: Meta, fullAPI: API) => {
   const { source, refId, type } = context;
-  const [sourceType, sourceLocation] = getSourceType(source, refId);
+  const [sourceType, sourceLocation] = getSourceType(source!, refId);
 
   const ref =
-    refId && fullAPI.getRefs()[refId] ? fullAPI.getRefs()[refId] : fullAPI.findRef(sourceLocation);
+    refId && fullAPI.getRefs()[refId] ? fullAPI.getRefs()[refId] : fullAPI.findRef(sourceLocation!);
 
   const meta = {
     source,

code/lib/manager-api/src/lib/shortcut.ts

@@ -92,7 +92,7 @@ export const eventMatchesShortcut = (
   e: KeyboardEventLike,
   shortcut: API_KeyCollection
 ): boolean => {
-  return shortcutMatchesShortcut(eventToShortcut(e), shortcut);
+  return shortcutMatchesShortcut(eventToShortcut(e)!, shortcut);
 };
 
 export const keyToSymbol = (key: string): string => {

code/lib/manager-api/src/lib/store-setup.ts

@@ -5,9 +5,11 @@ import { parse, stringify } from 'telejson';
 // setting up the store, overriding set and get to use telejson
 export default (_: any) => {
   _.fn('set', function (key: string, data: object) {
+    // @ts-expect-error('this' implicitly has type 'any')
     return _.set(this._area, this._in(key), stringify(data, { maxDepth: 50 }));
   });
   _.fn('get', function (key: string, alt: string) {
+    // @ts-expect-error('this' implicitly has type 'any')
     const value = _.get(this._area, this._in(key));
     return value !== null ? parse(value) : alt || value;
   });

code/lib/manager-api/src/lib/stories.ts

@@ -71,7 +71,7 @@ export const transformSetStoriesStoryDataToPreparedStoryIndex = (
           ...base,
         };
       } else {
-        const { argTypes, args, initialArgs } = story;
+        const { argTypes, args, initialArgs }: any = story;
         acc[id] = {
           type: 'story',
           ...base,
@@ -109,7 +109,7 @@ export const transformStoryIndexV3toV4 = (index: StoryIndexV3): API_PreparedStor
   const countByTitle = countBy(Object.values(index.stories), 'title');
   return {
     v: 4,
-    entries: Object.values(index.stories).reduce((acc, entry) => {
+    entries: Object.values(index.stories).reduce((acc, entry: any) => {
       let type: IndexEntry['type'] = 'story';
       if (
         entry.parameters?.docsOnly ||
@@ -143,7 +143,7 @@ type ToStoriesHashOptions = {
 export const transformStoryIndexToStoriesHash = (
   input: API_PreparedStoryIndex | StoryIndexV2 | StoryIndexV3,
   { provider, docsOptions, filters, status }: ToStoriesHashOptions
-): API_IndexHash => {
+): API_IndexHash | any => {
   if (!input.v) {
     throw new Error('Composition: Missing stories.json version');
   }
@@ -153,10 +153,10 @@ export const transformStoryIndexToStoriesHash = (
   index = index.v === 3 ? transformStoryIndexV3toV4(index as any) : index;
   index = index as API_PreparedStoryIndex;
 
-  const entryValues = Object.values(index.entries).filter((entry) => {
+  const entryValues = Object.values(index.entries).filter((entry: any) => {
     let result = true;
 
-    Object.values(filters).forEach((filter) => {
+    Object.values(filters).forEach((filter: any) => {
       if (result === false) {
         return;
       }
@@ -167,11 +167,11 @@ export const transformStoryIndexToStoriesHash = (
   });
 
   const { sidebar = {} } = provider.getConfig();
-  const { showRoots, collapsedRoots = [], renderLabel } = sidebar;
+  const { showRoots, collapsedRoots = [], renderLabel }: any = sidebar;
 
   const setShowRoots = typeof showRoots !== 'undefined';
 
-  const storiesHashOutOfOrder = entryValues.reduce((acc, item) => {
+  const storiesHashOutOfOrder = entryValues.reduce((acc: any, item: any) => {
     if (docsOptions.docsMode && item.type !== 'docs') {
       return acc;
     }
@@ -185,7 +185,7 @@ export const transformStoryIndexToStoriesHash = (
     // Now create a "path" or sub id for each name
     const paths = names.reduce((list, name, idx) => {
       const parent = idx > 0 && list[idx - 1];
-      const id = sanitize(parent ? `${parent}-${name}` : name);
+      const id = sanitize(parent ? `${parent}-${name}` : name!);
 
       if (parent === id) {
         throw new Error(
@@ -201,7 +201,7 @@ export const transformStoryIndexToStoriesHash = (
     }, [] as string[]);
 
     // Now, let's add an entry to the hash for each path/name pair
-    paths.forEach((id, idx) => {
+    paths.forEach((id: any, idx: any) => {
       // The child is the next path, OR the story/docs entry itself
       const childId = paths[idx + 1] || item.id;
 
@@ -284,7 +284,7 @@ export const transformStoryIndexToStoriesHash = (
   }, {} as API_IndexHash);
 
   // This function adds a "root" or "orphan" and all of its descendents to the hash.
-  function addItem(acc: API_IndexHash, item: API_HashEntry) {
+  function addItem(acc: API_IndexHash | any, item: API_HashEntry | any) {
     // If we were already inserted as part of a group, that's great.
     if (acc[item.id]) {
       return acc;
@@ -293,18 +293,18 @@ export const transformStoryIndexToStoriesHash = (
     acc[item.id] = item;
     // Ensure we add the children depth-first *before* inserting any other entries
     if (item.type === 'root' || item.type === 'group' || item.type === 'component') {
-      item.children.forEach((childId) => addItem(acc, storiesHashOutOfOrder[childId]));
+      item.children.forEach((childId: any) => addItem(acc, storiesHashOutOfOrder[childId]));
     }
     return acc;
   }
 
   // We'll do two passes over the data, adding all the orphans, then all the roots
   const orphanHash = Object.values(storiesHashOutOfOrder)
-    .filter((i) => i.type !== 'root' && !i.parent)
+    .filter((i: any) => i.type !== 'root' && !i.parent)
     .reduce(addItem, {});
 
   return Object.values(storiesHashOutOfOrder)
-    .filter((i) => i.type === 'root')
+    .filter((i: any) => i.type === 'root')
     .reduce(addItem, orphanHash);
 };
 

code/lib/manager-api/src/modules/addons.ts

@@ -85,7 +85,7 @@ export interface SubAPI {
 export function ensurePanel(panels: API_Panels, selectedPanel?: string, currentPanel?: string) {
   const keys = Object.keys(panels);
 
-  if (keys.indexOf(selectedPanel) >= 0) {
+  if (keys.indexOf(selectedPanel!) >= 0) {
     return selectedPanel;
   }
 
@@ -95,7 +95,7 @@ export function ensurePanel(panels: API_Panels, selectedPanel?: string, currentP
   return currentPanel;
 }
 
-export const init: ModuleFn<SubAPI, SubState> = ({ provider, store, fullAPI }) => {
+export const init: ModuleFn<SubAPI, SubState> = ({ provider, store, fullAPI }): any => {
   const api: SubAPI = {
     getElements: (type) => provider.getElements(type),
     getPanels: () => api.getElements(Addon_TypesEnum.PANEL),
@@ -112,7 +112,7 @@ export const init: ModuleFn<SubAPI, SubState> = ({ provider, store, fullAPI }) =
 
       const filteredPanels: Addon_Collection<Addon_BaseType> = {};
       Object.entries(allPanels).forEach(([id, panel]) => {
-        const { paramKey } = panel;
+        const { paramKey }: any = panel;
         if (paramKey && parameters && parameters[paramKey] && parameters[paramKey].disable) {
           return;
         }
@@ -121,7 +121,7 @@ export const init: ModuleFn<SubAPI, SubState> = ({ provider, store, fullAPI }) =
 
       return filteredPanels;
     },
-    getSelectedPanel: () => {
+    getSelectedPanel: (): any => {
       const { selectedPanel } = store.getState();
       return ensurePanel(api.getElements(Addon_TypesEnum.PANEL), selectedPanel, selectedPanel);
     },

code/lib/manager-api/src/modules/channel.ts

@@ -56,12 +56,12 @@ export const init: ModuleFn<SubAPI, SubState> = ({ provider }) => {
   const api: SubAPI = {
     getChannel: () => provider.channel,
     on: (type, handler) => {
-      provider.channel.on(type, handler);
+      provider.channel?.on(type, handler);
 
-      return () => provider.channel.off(type, handler);
+      return () => provider.channel?.off(type, handler);
     },
-    off: (type, handler) => provider.channel.off(type, handler),
-    once: (type, handler) => provider.channel.once(type, handler),
+    off: (type, handler) => provider.channel?.off(type, handler),
+    once: (type, handler) => provider.channel?.once(type, handler),
     emit: (type, data, ...args) => {
       if (
         data?.options?.target &&
@@ -73,7 +73,7 @@ export const init: ModuleFn<SubAPI, SubState> = ({ provider }) => {
             ? `storybook-ref-${data.options.target}`
             : 'storybook-preview-iframe';
       }
-      provider.channel.emit(type, data, ...args);
+      provider.channel?.emit(type, data, ...args);
     },
     collapseAll: () => {
       api.emit(STORIES_COLLAPSE_ALL, {});

code/lib/manager-api/src/modules/globals.ts

@@ -35,14 +35,14 @@ export interface SubAPI {
 export const init: ModuleFn<SubAPI, SubState> = ({ store, fullAPI, provider }) => {
   const api: SubAPI = {
     getGlobals() {
-      return store.getState().globals;
+      return store.getState().globals as Globals;
     },
     getGlobalTypes() {
-      return store.getState().globalTypes;
+      return store.getState().globalTypes as GlobalTypes;
     },
     updateGlobals(newGlobals) {
       // Only emit the message to the local ref
-      provider.channel.emit(UPDATE_GLOBALS, {
+      provider.channel?.emit(UPDATE_GLOBALS, {
         globals: newGlobals,
         options: {
           target: 'storybook-preview-iframe',
@@ -62,10 +62,10 @@ export const init: ModuleFn<SubAPI, SubState> = ({ store, fullAPI, provider }) =
     }
   };
 
-  provider.channel.on(
+  provider.channel?.on(
     GLOBALS_UPDATED,
-    function handleGlobalsUpdated({ globals }: { globals: Globals }) {
-      const { ref } = getEventMetadata(this, fullAPI);
+    function handleGlobalsUpdated(this: any, { globals }: { globals: Globals }) {
+      const { ref } = getEventMetadata(this, fullAPI)!;
 
       if (!ref) {
         updateGlobals(globals);
@@ -78,10 +78,10 @@ export const init: ModuleFn<SubAPI, SubState> = ({ store, fullAPI, provider }) =
   );
 
   // Emitted by the preview on initialization
-  provider.channel.on(
+  provider.channel?.on(
     SET_GLOBALS,
-    function handleSetStories({ globals, globalTypes }: SetGlobalsPayload) {
-      const { ref } = getEventMetadata(this, fullAPI);
+    function handleSetStories(this: any, { globals, globalTypes }: SetGlobalsPayload) {
+      const { ref } = getEventMetadata(this, fullAPI)!;
       const currentGlobals = store.getState()?.globals;
 
       if (!ref) {

code/lib/manager-api/src/modules/layout.ts

@@ -385,7 +385,7 @@ export const init: ModuleFn<SubAPI, SubState> = ({ store, provider, singleStory
 
   const persisted = pick(store.getState(), 'layout', 'selectedPanel');
 
-  provider.channel.on(SET_CONFIG, () => {
+  provider.channel?.on(SET_CONFIG, () => {
     api.setOptions(merge(api.getInitialOptions(), persisted));
   });