Upgrade ts to the latest version and fix type errors

package.json

@@ -163,7 +163,7 @@
     "speed-measure-webpack-plugin": "^1.3.3",
     "storybook-addon-intl": "^2.4.1",
     "style-loader": "~1.2.1",
-    "typescript": "^3.7.4",
+    "typescript": "^3.9.3",
     "unexpected": "^11.14.0",
     "unexpected-sinon": "^10.5.1",
     "url-loader": "^4.1.0",

packages/app/components/accounts/AccountSwitcher.tsx

@@ -169,7 +169,7 @@ export class AccountSwitcher extends React.Component<Props> {
     );
   }
 
-  onSwitch = (account: Account) => (event: React.MouseEvent) => {
+  onSwitch = (account: Account) => (event: React.MouseEvent<any>) => {
     event.preventDefault();
 
     loader.show();
@@ -184,7 +184,7 @@ export class AccountSwitcher extends React.Component<Props> {
       .finally(() => loader.hide());
   };
 
-  onRemove = (account: Account) => (event: React.MouseEvent) => {
+  onRemove = (account: Account) => (event: React.MouseEvent<any>) => {
     event.preventDefault();
     event.stopPropagation();
 

packages/app/components/auth/PanelTransition.tsx

@@ -406,7 +406,7 @@ class PanelTransition extends React.PureComponent<Props, State> {
     });
   };
 
-  onGoBack: MouseEventHandler = (event): void => {
+  onGoBack: MouseEventHandler<HTMLButtonElement> = (event): void => {
     event.preventDefault();
     authFlow.goBack();
   };

packages/app/components/auth/actions.ts

@@ -680,7 +680,7 @@ function validationErrorsHandler(
   repeatUrl?: string,
 ): (
   resp: Resp<{
-    errors?: Record<string, string>;
+    errors?: Record<string, string | ValidationError>;
     data?: Record<string, any>;
   }>,
 ) => Promise<never> {

packages/app/components/footerMenu/FooterMenu.tsx

@@ -11,7 +11,9 @@ import messages from './footerMenu.intl.json';
 
 const FooterMenu: ComponentType = () => {
   const dispatch = useDispatch();
-  const onLanguageSwitcherClick = useCallback<MouseEventHandler>(
+  const onLanguageSwitcherClick = useCallback<
+    MouseEventHandler<HTMLAnchorElement>
+  >(
     (event) => {
       event.preventDefault();
       dispatch(createPopup({ Popup: LanguageSwitcher }));

packages/app/components/languageSwitcher/LanguageList.tsx

@@ -124,7 +124,7 @@ export default class LanguageList extends React.Component<{
     return emptyCaptions[Math.floor(Math.random() * emptyCaptions.length)];
   }
 
-  onChangeLang(lang: string): MouseEventHandler {
+  onChangeLang(lang: string): MouseEventHandler<HTMLDivElement> {
     return (event) => {
       event.preventDefault();
 

packages/app/components/profile/changeEmail/ChangeEmail.tsx

@@ -313,7 +313,7 @@ export default class ChangeEmail extends React.Component<Props, State> {
     return this.state.activeStep + 1 === STEPS_TOTAL;
   }
 
-  onSwitchStep = (event: React.MouseEvent) => {
+  onSwitchStep = (event: React.MouseEvent<HTMLAnchorElement>) => {
     event.preventDefault();
 
     this.nextStep();

packages/app/components/ui/Panel.tsx

@@ -103,7 +103,7 @@ export class PanelBodyHeader extends React.Component<
     );
   }
 
-  onClose = (event: React.MouseEvent) => {
+  onClose = (event: React.MouseEvent<HTMLElement>) => {
     event.preventDefault();
 
     const { onClose } = this.props;

packages/app/components/ui/form/Dropdown.tsx

@@ -100,7 +100,7 @@ export default class Dropdown extends FormInputComponent<Props, State> {
     });
   }
 
-  onSelectItem(item: OptionItem): MouseEventHandler {
+  onSelectItem(item: OptionItem): MouseEventHandler<HTMLDivElement> {
     return (event) => {
       event.preventDefault();
 

packages/app/components/ui/form/LinkButton.tsx

@@ -3,16 +3,16 @@ import { Link } from 'react-router-dom';
 
 import Button from './Button';
 
-export default function LinkButton(
-  props: React.ComponentProps<typeof Button> &
-    React.ComponentProps<typeof Link>,
-) {
+type ButtonProps = React.ComponentProps<typeof Button>;
+type LinkProps = React.ComponentProps<typeof Link>;
+
+export default function LinkButton(props: ButtonProps & LinkProps) {
   const { to, ...restProps } = props;
 
   return (
     <Button
       component={(linkProps) => <Link {...linkProps} to={to} />}
-      {...restProps}
+      {...(restProps as ButtonProps)}
     />
   );
 }

packages/app/components/ui/popup/PopupStack.test.tsx

@@ -14,7 +14,7 @@ function DummyPopup(_props: Record<string, any>) {
 
 describe('<PopupStack />', () => {
   it('renders all popup components', () => {
-    const props = {
+    const props: any = {
       destroy: () => {},
       popups: [
         {
@@ -35,13 +35,13 @@ describe('<PopupStack />', () => {
       foo: 'bar',
     };
 
-    const props = {
+    const props: any = {
       destroy: () => {},
       popups: [
         {
-          Popup: (props = { onClose: Function }) => {
+          Popup: (popupProps = { onClose: Function }) => {
             // eslint-disable-next-line
-            expect(props.onClose, 'to be a', 'function');
+            expect(popupProps.onClose, 'to be a', 'function');
 
             return <DummyPopup {...expectedProps} />;
           },
@@ -56,7 +56,7 @@ describe('<PopupStack />', () => {
   });
 
   it('should hide popup, when onClose called', () => {
-    const props = {
+    const props: any = {
       popups: [
         {
           Popup: DummyPopup,
@@ -79,7 +79,7 @@ describe('<PopupStack />', () => {
 
   it('should hide popup, when overlay clicked', () => {
     const preventDefault = sinon.stub().named('event.preventDefault');
-    const props = {
+    const props: any = {
       destroy: sinon.stub().named('props.destroy'),
       popups: [
         {
@@ -97,7 +97,7 @@ describe('<PopupStack />', () => {
   });
 
   it('should hide popup on overlay click if disableOverlayClose', () => {
-    const props = {
+    const props: any = {
       destroy: sinon.stub().named('props.destroy'),
       popups: [
         {
@@ -119,7 +119,7 @@ describe('<PopupStack />', () => {
   });
 
   it('should hide popup, when esc pressed', () => {
-    const props = {
+    const props: any = {
       destroy: sinon.stub().named('props.destroy'),
       popups: [
         {
@@ -138,7 +138,7 @@ describe('<PopupStack />', () => {
   });
 
   it('should hide first popup in stack if esc pressed', () => {
-    const props = {
+    const props: any = {
       destroy: sinon.stub().named('props.destroy'),
       popups: [
         {
@@ -165,7 +165,7 @@ describe('<PopupStack />', () => {
   });
 
   it('should NOT hide popup on esc pressed if disableOverlayClose', () => {
-    const props = {
+    const props: any = {
       destroy: sinon.stub().named('props.destroy'),
       popups: [
         {

packages/app/components/ui/popup/PopupStack.tsx

@@ -64,7 +64,7 @@ export class PopupStack extends React.Component<Props> {
   }
 
   onOverlayClick(popup: PopupConfig) {
-    return (event: React.MouseEvent) => {
+    return (event: React.MouseEvent<HTMLDivElement>) => {
       if (event.target !== event.currentTarget || popup.disableOverlayClose) {
         return;
       }

packages/app/services/authFlow/AuthFlow.ts

@@ -77,7 +77,7 @@ export default class AuthFlow implements AuthContext {
   replace: ((path: string) => void) | null;
   onReady: () => void;
   navigate: (route: string, options: { replace?: boolean }) => void;
-  currentRequest: Request;
+  currentRequest: Partial<Request> = {};
   oAuthStateRestored = false;
   dispatch: (action: Record<string, any>) => void;
   getState: () => RootState;

packages/app/services/i18n/i18n.ts

@@ -8,12 +8,9 @@ export const SUPPORTED_LANGUAGES = Object.keys(locales);
 export const DEFAULT_LANGUAGE = 'en';
 
 function getBrowserPreferredLanguages(): string[] {
-  return []
-    .concat(
-      // @ts-ignore
-      navigator.languages || [],
-    )
-    .concat(navigator.language || []);
+  return ([] as string[])
+    .concat(navigator['languages'] || [])
+    .concat(navigator['language'] || []);
 }
 
 function detectLanguage(

tsconfig.json

@@ -11,6 +11,7 @@
     "noEmit": true,
     "checkJs": true,
     "allowJs": true,
+    "skipLibCheck": true,
     "strictNullChecks": true,
     "strictPropertyInitialization": false,
     "isolatedModules": true,

yarn.lock

@@ -15665,10 +15665,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.7.4:
-  version "3.7.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.4.tgz#1743a5ec5fef6a1fa9f3e4708e33c81c73876c19"
-  integrity sha512-A25xv5XCtarLwXpcDNZzCGvW2D1S3/bACratYBx2sax8PefsFhlYmkQicKHvpYflFS8if4zne5zT5kpJ7pzuvw==
+typescript@^3.9.3:
+  version "3.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.3.tgz#d3ac8883a97c26139e42df5e93eeece33d610b8a"
+  integrity sha512-D/wqnB2xzNFIcoBG9FG8cXRDjiqSTbG2wd8DMZeQyJlP1vfTkIxH4GKveWaEBYySKIg+USu+E+EDIR47SqnaMQ==
 
 ua-parser-js@^0.7.18:
   version "0.7.21"