Typescript for models

js/src/@types/global.d.ts

@@ -46,6 +46,17 @@ declare const app: never;
 declare const m: import('mithril').Static;
 declare const dayjs: typeof import('dayjs');
 
+/**
+ * From https://github.com/lokesh/color-thief/issues/188
+ */
+declare module 'color-thief-browser' {
+  type Color = [number, number, number];
+  export default class ColorThief {
+    getColor: (img: HTMLImageElement | null) => Color;
+    getPalette: (img: HTMLImageElement | null) => Color[];
+  }
+}
+
 type ESModule = { __esModule: true; [key: string]: unknown };
 
 /**

js/src/admin/AdminApplication.ts

@@ -44,9 +44,9 @@ export default class AdminApplication extends Application {
   history = {
     canGoBack: () => true,
     getPrevious: () => {},
-    backUrl: () => this.forum.attribute('baseUrl'),
+    backUrl: () => this.forum.attribute<string>('baseUrl'),
     back: function () {
-      window.location = this.backUrl();
+      window.location.assign(this.backUrl());
     },
   };
 

js/src/admin/components/UserListPage.tsx

@@ -1,3 +1,5 @@
+import type Mithril from 'mithril';
+
 import app from '../../admin/app';
 
 import EditUserModal from '../../common/components/EditUserModal';
@@ -14,7 +16,6 @@ import classList from '../../common/utils/classList';
 import extractText from '../../common/utils/extractText';
 
 import AdminPage from './AdminPage';
-import Mithril from 'mithril';
 
 type ColumnData = {
   /**
@@ -24,20 +25,9 @@ type ColumnData = {
   /**
    * Component(s) to show for this column.
    */
-  content: (user: User) => JSX.Element;
-};
-
-type ApiPayload = {
-  data: Record<string, unknown>[];
-  included: Record<string, unknown>[];
-  links: {
-    first: string;
-    next?: string;
-  };
+  content: (user: User) => Mithril.Children;
 };
 
-type UsersApiResponse = User[] & { payload: ApiPayload };
-
 /**
  * Admin page which displays a paginated list of all users on the forum.
  */
@@ -185,7 +175,7 @@ export default class UserListPage extends AdminPage {
       'id',
       {
         name: app.translator.trans('core.admin.users.grid.columns.user_id.title'),
-        content: (user: User) => user.id(),
+        content: (user: User) => user.id() ?? '',
       },
       100
     );
@@ -348,15 +338,15 @@ export default class UserListPage extends AdminPage {
     if (pageNumber < 0) pageNumber = 0;
 
     app.store
-      .find('users', {
+      .find<User[]>('users', {
         page: {
           limit: this.numPerPage,
           offset: pageNumber * this.numPerPage,
         },
       })
-      .then((apiData: UsersApiResponse) => {
+      .then((apiData) => {
         // Next link won't be present if there's no more data
-        this.moreData = !!apiData.payload.links.next;
+        this.moreData = !!apiData.payload?.links?.next;
 
         let data = apiData;
 

js/src/common/Application.tsx

@@ -6,7 +6,7 @@ import ModalManager from './components/ModalManager';
 import AlertManager from './components/AlertManager';
 import RequestErrorModal from './components/RequestErrorModal';
 import Translator from './Translator';
-import Store from './Store';
+import Store, { ApiPayload, ApiResponse, ApiResponsePlural, ApiResponseSingle, payloadIsPlural } from './Store';
 import Session from './Session';
 import extract from './utils/extract';
 import Drawer from './utils/Drawer';
@@ -31,6 +31,7 @@ import type DefaultResolver from './resolvers/DefaultResolver';
 import type Mithril from 'mithril';
 import type Component from './Component';
 import type { ComponentAttrs } from './Component';
+import Model, { SavedModelData } from './Model';
 
 export type FlarumScreens = 'phone' | 'tablet' | 'desktop' | 'desktop-hd';
 
@@ -210,10 +211,10 @@ export default class Application {
   drawer!: Drawer;
 
   data!: {
-    apiDocument: Record<string, unknown> | null;
+    apiDocument: ApiPayload | null;
     locale: string;
     locales: Record<string, string>;
-    resources: Record<string, unknown>[];
+    resources: SavedModelData[];
     session: { userId: number; csrfToken: string };
     [key: string]: unknown;
   };
@@ -255,9 +256,9 @@ export default class Application {
 
     this.store.pushPayload({ data: this.data.resources });
 
-    this.forum = this.store.getById('forums', 1);
+    this.forum = this.store.getById('forums', '1')!;
 
-    this.session = new Session(this.store.getById('users', this.data.session.userId), this.data.session.csrfToken);
+    this.session = new Session(this.store.getById<User>('users', String(this.data.session.userId)) ?? null, this.data.session.csrfToken);
 
     this.mount();
 
@@ -317,10 +318,14 @@ export default class Application {
   /**
    * Get the API response document that has been preloaded into the application.
    */
-  preloadedApiDocument(): Record<string, unknown> | null {
+  preloadedApiDocument<M extends Model>(): ApiResponseSingle<M> | null;
+  preloadedApiDocument<Ms extends Model[]>(): ApiResponsePlural<Ms[number]> | null;
+  preloadedApiDocument<M extends Model | Model[]>(): ApiResponse<FlatArray<M, 1>> | null {
     // If the URL has changed, the preloaded Api document is invalid.
     if (this.data.apiDocument && window.location.href === this.initialRoute) {
-      const results = this.store.pushPayload(this.data.apiDocument);
+      const results = payloadIsPlural(this.data.apiDocument)
+        ? this.store.pushPayload<FlatArray<M, 1>[]>(this.data.apiDocument)
+        : this.store.pushPayload<FlatArray<M, 1>>(this.data.apiDocument);
 
       this.data.apiDocument = null;
 
@@ -450,7 +455,7 @@ export default class Application {
    * @param options
    * @return {Promise}
    */
-  request<ResponseType>(originalOptions: FlarumRequestOptions<ResponseType>): Promise<ResponseType | string> {
+  request<ResponseType>(originalOptions: FlarumRequestOptions<ResponseType>): Promise<ResponseType> {
     const options = this.transformRequestOptions(originalOptions);
 
     if (this.requestErrorAlert) this.alerts.dismiss(this.requestErrorAlert);