fix incorrect gui refresh if theme is changed

implement custom clientstore
add new Password page
if password is set force entering password to successfully receive the token
add a new unsafe api call for init call only

apiGo/api/ApiBase.go

@@ -16,6 +16,7 @@ const (
 	TagNode      = iota
 	SettingsNode = iota
 	ActorNode    = iota
+	InitNode     = iota
 )
 
 type actionStruct struct {
@@ -42,6 +43,9 @@ func ServerInit(port uint16) {
 	http.Handle(APIPREFIX+"/settings", oauth.ValidateToken(settingsHandler))
 	http.Handle(APIPREFIX+"/actor", oauth.ValidateToken(actorHandler))
 
+	// initialization api calls to check if password is neccessaray
+	http.Handle(APIPREFIX+"/init", http.HandlerFunc(initHandler))
+
 	// initialize oauth service and add corresponding auth routes
 	oauth.InitOAuth()
 
@@ -85,6 +89,10 @@ func settingsHandler(rw http.ResponseWriter, req *http.Request) {
 	handlefunc(rw, req, SettingsNode)
 }
 
+func initHandler(rw http.ResponseWriter, req *http.Request) {
+	handlefunc(rw, req, InitNode)
+}
+
 func handlefunc(rw http.ResponseWriter, req *http.Request, node int) {
 	// only allow post requests
 	if req.Method != "POST" {

apiGo/api/Init.go

@@ -0,0 +1,33 @@
+package api
+
+import (
+	"encoding/json"
+	"openmediacenter/apiGo/database/settings"
+)
+
+func AddInitHandlers() {
+	passwordNeeded()
+}
+
+func passwordNeeded() {
+	AddHandler("loadInitialData", InitNode, nil, func() []byte {
+		sett := settings.LoadSettings()
+
+		type InitialDataTypeResponse struct {
+			DarkMode        bool
+			Pasword         bool
+			MediacenterName string
+			VideoPath       string
+		}
+
+		res := InitialDataTypeResponse{
+			DarkMode:        sett.DarkMode,
+			Pasword:         sett.Pasword != "-1",
+			MediacenterName: sett.Mediacenter_name,
+			VideoPath:       sett.VideoPath,
+		}
+
+		str, _ := json.Marshal(res)
+		return str
+	})
+}

apiGo/api/Settings.go

@@ -1,8 +1,6 @@
 package api
 
 import (
-	"encoding/json"
-	"fmt"
 	"openmediacenter/apiGo/api/types"
 	"openmediacenter/apiGo/database"
 	"openmediacenter/apiGo/videoparser"
@@ -15,41 +13,6 @@ func AddSettingsHandlers() {
 }
 
 func getSettingsFromDB() {
-	AddHandler("loadInitialData", SettingsNode, nil, func() []byte {
-		query := "SELECT DarkMode, password, mediacenter_name, video_path from settings"
-
-		type InitialDataType struct {
-			DarkMode         int
-			Pasword          int
-			Mediacenter_name string
-			VideoPath        string
-		}
-
-		result := InitialDataType{}
-
-		err := database.QueryRow(query).Scan(&result.DarkMode, &result.Pasword, &result.Mediacenter_name, &result.VideoPath)
-		if err != nil {
-			fmt.Println("error while parsing db data: " + err.Error())
-		}
-
-		type InitialDataTypeResponse struct {
-			DarkMode         bool
-			Pasword          bool
-			Mediacenter_name string
-			VideoPath        string
-		}
-
-		res := InitialDataTypeResponse{
-			DarkMode:         result.DarkMode != 0,
-			Pasword:          result.Pasword != -1,
-			Mediacenter_name: result.Mediacenter_name,
-			VideoPath:        result.VideoPath,
-		}
-
-		str, _ := json.Marshal(res)
-		return str
-	})
-
 	AddHandler("loadGeneralSettings", SettingsNode, nil, func() []byte {
 		result := database.GetSettings()
 		return jsonify(result)

apiGo/api/oauth/CustomClientStore.go

@@ -0,0 +1,56 @@
+package oauth
+
+import (
+	"gopkg.in/oauth2.v3"
+	"openmediacenter/apiGo/database/settings"
+)
+
+type CustomClientStore struct {
+	oauth2.ClientStore
+}
+
+type CustomClientInfo struct {
+	oauth2.ClientInfo
+	ID     string
+	Secret string
+	Domain string
+	UserID string
+}
+
+func NewCustomStore() oauth2.ClientStore {
+	s := new(CustomClientStore)
+	return s
+}
+
+func (a *CustomClientStore) GetByID(id string) (oauth2.ClientInfo, error) {
+	password := settings.GetPassword()
+	if password == nil {
+		defaultpassword := "openmediacenter"
+		password = &defaultpassword
+	}
+
+	clientinfo := CustomClientInfo{
+		ID:     "openmediacenter",
+		Secret: *password,
+		Domain: "http://localhost:8081",
+		UserID: "openmediacenter",
+	}
+
+	return &clientinfo, nil
+}
+
+func (a *CustomClientInfo) GetID() string {
+	return a.ID
+}
+
+func (a *CustomClientInfo) GetSecret() string {
+	return a.Secret
+}
+
+func (a *CustomClientInfo) GetDomain() string {
+	return a.Domain
+}
+
+func (a *CustomClientInfo) GetUserID() string {
+	return a.UserID
+}

apiGo/api/oauth/Oauth.go

@@ -3,7 +3,7 @@ package oauth
 import (
 	"gopkg.in/oauth2.v3/errors"
 	"gopkg.in/oauth2.v3/manage"
-	"gopkg.in/oauth2.v3/models"
+	//"gopkg.in/oauth2.v3/models"
 	"gopkg.in/oauth2.v3/server"
 	"gopkg.in/oauth2.v3/store"
 	"log"
@@ -17,15 +17,19 @@ func InitOAuth() {
 	// token store
 	manager.MustTokenStorage(store.NewMemoryTokenStore())
 
-	clientStore := store.NewClientStore()
-	// todo we need to check here if a password is enabled in db -- when yes set it here!
-	clientStore.Set("openmediacenter", &models.Client{
-		ID:     "openmediacenter",
-		Secret: "openmediacenter",
-		Domain: "http://localhost:8081",
-	})
+	//clientStore := store.NewClientStore()
+	//// todo we need to check here if a password is enabled in db -- when yes set it here!
+	//clientStore.Set("openmediacenter", &models.Client{
+	//	ID:     "openmediacenter",
+	//	Secret: "openmediacenter",
+	//	Domain: "http://localhost:8081",
+	//})
+	//
+	//manager.MapClientStorage(clientStore)
+
+	strtest := NewCustomStore()
+	manager.MapClientStorage(strtest)
 
-	manager.MapClientStorage(clientStore)
 	srv = server.NewServer(server.NewConfig(), manager)
 	srv.SetClientInfoHandler(server.ClientFormHandler)
 	manager.SetRefreshTokenCfg(manage.DefaultRefreshTokenCfg)

apiGo/database/settings/DBSettings.go

@@ -0,0 +1,49 @@
+package settings
+
+import (
+	"fmt"
+	"openmediacenter/apiGo/database"
+)
+
+func GetPassword() *string {
+	pwd := LoadSettings().Pasword
+	if pwd == "-1" {
+		return nil
+	} else {
+		return &pwd
+	}
+}
+
+type SettingsType struct {
+	DarkMode         bool
+	Pasword          string
+	Mediacenter_name string
+	VideoPath        string
+}
+
+func LoadSettings() *SettingsType {
+	query := "SELECT DarkMode, password, mediacenter_name, video_path from settings"
+
+	type RawSettingsType struct {
+		DarkMode         int
+		Pasword          string
+		Mediacenter_name string
+		VideoPath        string
+	}
+
+	result := RawSettingsType{}
+
+	err := database.QueryRow(query).Scan(&result.DarkMode, &result.Pasword, &result.Mediacenter_name, &result.VideoPath)
+	if err != nil {
+		fmt.Println("error while parsing db data: " + err.Error())
+	}
+
+	res := SettingsType{
+		DarkMode:         result.DarkMode != 0,
+		Pasword:          result.Pasword,
+		Mediacenter_name: result.Mediacenter_name,
+		VideoPath:        result.VideoPath,
+	}
+
+	return &res
+}

apiGo/go.mod

@@ -3,7 +3,6 @@ module openmediacenter/apiGo
 go 1.16
 
 require (
-	github.com/go-session/session v3.1.2+incompatible
 	github.com/go-sql-driver/mysql v1.5.0
 	gopkg.in/oauth2.v3 v3.12.0
 )

apiGo/go.sum

@@ -11,7 +11,6 @@ github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gavv/httpexpect v2.0.0+incompatible h1:1X9kcRshkSKEjNJJxX9Y9mQ5BRfbxU5kORdjhlA1yX8=
 github.com/gavv/httpexpect v2.0.0+incompatible/go.mod h1:x+9tiU1YnrOvnB725RkpoLv1M62hOWzwo5OXotisrKc=
-github.com/go-session/session v3.1.2+incompatible h1:yStchEObKg4nk2F7JGE7KoFIrA/1Y078peagMWcrncg=
 github.com/go-session/session v3.1.2+incompatible/go.mod h1:8B3iivBQjrz/JtC68Np2T1yBBLxTan3mn/3OM0CyRt0=
 github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
 github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=

apiGo/main.go

@@ -26,6 +26,7 @@ func main() {
 	api.AddSettingsHandlers()
 	api.AddTagHandlers()
 	api.AddActorsHandlers()
+	api.AddInitHandlers()
 
 	api.ServerInit(8081)
 }

src/App.test.js

@@ -1,6 +1,7 @@
 import React from 'react';
 import App from './App';
 import {shallow} from 'enzyme';
+import GlobalInfos from "./utils/GlobalInfos";
 
 describe('<App/>', function () {
     it('renders without crashing ', function () {
@@ -10,34 +11,37 @@ describe('<App/>', function () {
 
     it('renders title', () => {
         const wrapper = shallow(<App/>);
+        wrapper.setState({password: false});
         expect(wrapper.find('.navbrand').text()).toBe('OpenMediaCenter');
     });
 
     it('are navlinks correct', function () {
         const wrapper = shallow(<App/>);
+        wrapper.setState({password: false});
         expect(wrapper.find('.navitem')).toHaveLength(4);
     });
 
     it('test initial fetch from api', done => {
-        global.fetch = global.prepareFetchApi({
-            generalSettingsLoaded: true,
-            passwordsupport: true,
-            mediacentername: 'testname'
-        });
+        callAPIMock({
+            MediacenterName: 'testname'
+        })
+
+        GlobalInfos.enableDarkTheme = jest.fn((r) => {})
 
         const wrapper = shallow(<App/>);
 
-
-        const func = jest.fn();
-        wrapper.instance().setState = func;
-
-        expect(global.fetch).toBeCalledTimes(1);
-
         process.nextTick(() => {
-            expect(func).toBeCalledTimes(1);
+            expect(document.title).toBe('testname');
 
             global.fetch.mockClear();
             done();
         });
     });
+
+    it('test render of password page', function () {
+        const wrapper = shallow(<App/>);
+        wrapper.setState({password: true});
+
+        expect(wrapper.find('AuthenticationPage')).toHaveLength(1);
+    });
 });

src/App.tsx

@@ -9,7 +9,7 @@ import style from './App.module.css';
 
 import SettingsPage from './pages/SettingsPage/SettingsPage';
 import CategoryPage from './pages/CategoryPage/CategoryPage';
-import {APINode, callAPI} from './utils/Api';
+import {APINode, apiTokenValid, callApiUnsafe, refreshAPIToken} from './utils/Api';
 import {NoBackendConnectionPopup} from './elements/Popups/NoBackendConnectionPopup/NoBackendConnectionPopup';
 
 import {BrowserRouter as Router, NavLink, Route, Switch} from 'react-router-dom';
@@ -17,10 +17,10 @@ import Player from './pages/Player/Player';
 import ActorOverviewPage from './pages/ActorOverviewPage/ActorOverviewPage';
 import ActorPage from './pages/ActorPage/ActorPage';
 import {SettingsTypes} from './types/ApiTypes';
+import AuthenticationPage from "./pages/AuthenticationPage/AuthenticationPage";
 
 interface state {
-    generalSettingsLoaded: boolean;
-    passwordsupport: boolean;
+    password: boolean | null; // null if uninitialized - true if pwd needed false if not needed
     mediacentername: string;
     onapierror: boolean;
 }
@@ -31,30 +31,48 @@ interface state {
 class App extends React.Component<{}, state> {
     constructor(props: {}) {
         super(props);
+
+        let pwdneeded: boolean | null = null;
+
+        if (apiTokenValid()) {
+            pwdneeded = false;
+        } else {
+            refreshAPIToken((err) => {
+                if (err === 'invalid_client') {
+                    this.setState({password: true})
+                } else if (err === '') {
+                    this.setState({password: false})
+                } else {
+                    console.log("unimplemented token error: " + err)
+                }
+            })
+        }
+
         this.state = {
-            generalSettingsLoaded: false,
-            passwordsupport: false,
             mediacentername: 'OpenMediaCenter',
-            onapierror: false
+            onapierror: false,
+            password: pwdneeded
         };
+
+        GlobalInfos.onThemeChange(() => {
+            this.forceUpdate();
+        })
     }
 
     initialAPICall(): void {
         // this is the first api call so if it fails we know there is no connection to backend
-        callAPI(APINode.Settings, {action: 'loadInitialData'}, (result: SettingsTypes.initialApiCallData) => {
+        callApiUnsafe(APINode.Init, {action: 'loadInitialData'}, (result: SettingsTypes.initialApiCallData) => {
             // set theme
             GlobalInfos.enableDarkTheme(result.DarkMode);
 
             GlobalInfos.setVideoPath(result.VideoPath);
 
             this.setState({
-                generalSettingsLoaded: true,
-                passwordsupport: result.Password,
-                mediacentername: result.Mediacenter_name,
+                mediacentername: result.MediacenterName,
                 onapierror: false
             });
             // set tab title to received mediacenter name
-            document.title = result.Mediacenter_name;
+            document.title = result.MediacenterName;
         }, error => {
             this.setState({onapierror: true});
         });
@@ -70,23 +88,44 @@ class App extends React.Component<{}, state> {
         // add the main theme to the page body
         document.body.className = themeStyle.backgroundcolor;
 
-        return (
-            <Router>
-                <div className={style.app}>
-                    <div className={[style.navcontainer, themeStyle.backgroundcolor, themeStyle.textcolor, themeStyle.hrcolor].join(' ')}>
-                        <div className={style.navbrand}>{this.state.mediacentername}</div>
-                        <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/'} activeStyle={{opacity: '0.85'}}>Home</NavLink>
-                        <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/random'} activeStyle={{opacity: '0.85'}}>Random
-                            Video</NavLink>
+        if (this.state.password === true) {
+            return (
+                <AuthenticationPage submit={(password): void => {
+                    refreshAPIToken((error) => {
+                        if (error !== '') {
+                            console.log("wrong password!!!");
+                        } else {
+                            this.setState({password: false});
+                        }
+                    }, password);
+                }}/>
+            );
+        } else if (this.state.password === false) {
+            return (
+                <Router>
+                    <div className={style.app}>
+                        <div
+                            className={[style.navcontainer, themeStyle.backgroundcolor, themeStyle.textcolor, themeStyle.hrcolor].join(' ')}>
+                            <div className={style.navbrand}>{this.state.mediacentername}</div>
+                            <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/'}
+                                     activeStyle={{opacity: '0.85'}}>Home</NavLink>
+                            <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/random'}
+                                     activeStyle={{opacity: '0.85'}}>Random
+                                Video</NavLink>
 
-                        <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/categories'} activeStyle={{opacity: '0.85'}}>Categories</NavLink>
-                        <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/settings'} activeStyle={{opacity: '0.85'}}>Settings</NavLink>
+                            <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/categories'}
+                                     activeStyle={{opacity: '0.85'}}>Categories</NavLink>
+                            <NavLink className={[style.navitem, themeStyle.navitem].join(' ')} to={'/settings'}
+                                     activeStyle={{opacity: '0.85'}}>Settings</NavLink>
+                        </div>
+                        {this.routing()}
                     </div>
-                    {this.routing()}
-                </div>
-                {this.state.onapierror ? this.ApiError() : null}
-            </Router>
-        );
+                    {this.state.onapierror ? this.ApiError() : null}
+                </Router>
+            );
+        } else {
+            return (<>still loading...</>);
+        }
     }
 
     routing(): JSX.Element {

src/pages/AuthenticationPage/AuthenticationPage.module.css

@@ -0,0 +1,52 @@
+.main {
+    background-color: #00b3ff;
+    margin-left: calc(50% - 125px);
+    margin-top: 5%;
+    padding-bottom: 15px;
+    width: 250px;
+    text-align: center;
+    border-radius: 10px;
+}
+
+.loginText {
+    font-size: xx-large;
+    text-align: center;
+    margin-bottom: 15px;
+    font-weight: bolder;
+}
+
+.openmediacenterlabel {
+    margin-top: 5%;
+    text-align: center;
+    font-size: xxx-large;
+    font-weight: bold;
+    text-transform: capitalize;
+    color: white;
+}
+
+.input {
+    margin-left: 10px;
+    margin-right: 10px;
+    width: calc(100% - 20px);
+    background: transparent;
+    border-width: 0 0 1px 0;
+    color: #505050;
+    border-color: #505050;
+    text-align: center;
+    margin-bottom: 25px;
+    font-size: larger;
+}
+
+::placeholder {
+    color: #505050;
+    opacity: 1;
+}
+
+*:focus {
+    outline: none;
+}
+
+.input:focus {
+    color: black;
+    border-color: black;
+}

src/pages/AuthenticationPage/AuthenticationPage.test.js

@@ -0,0 +1,21 @@
+import React from 'react';
+import AuthenticationPage from './AuthenticationPage';
+import {shallow} from 'enzyme';
+
+describe('<AuthenticationPage/>', function () {
+    it('renders without crashing ', function () {
+        const wrapper = shallow(<AuthenticationPage submit={() => {}}/>);
+        wrapper.unmount();
+    });
+
+    it('test button click', function () {
+        let pass;
+        const func = jest.fn((pwd) => {pass = pwd});
+        const wrapper = shallow(<AuthenticationPage submit={func}/>);
+        wrapper.setState({pwdText: 'testpwd'});
+        wrapper.find('Button').simulate('click');
+
+        expect(func).toHaveBeenCalledTimes(1);
+        expect(pass).toBe('testpwd');
+    });
+});

src/pages/AuthenticationPage/AuthenticationPage.tsx

@@ -0,0 +1,46 @@
+import React from "react";
+import {Button} from "../../elements/GPElements/Button";
+import style from './AuthenticationPage.module.css'
+
+interface state {
+    pwdText: string
+}
+
+interface props {
+    submit: (password: string) => void
+}
+
+class AuthenticationPage extends React.Component<props, state> {
+    constructor(props: props) {
+        super(props);
+
+        this.state = {
+            pwdText: ''
+        }
+    }
+
+    render(): JSX.Element {
+        return (
+            <>
+                <div className={style.openmediacenterlabel}>OpenMediaCenter</div>
+                <div className={style.main}>
+                    <div className={style.loginText}>Login</div>
+                    <div>
+                        <input className={style.input}
+                               placeholder='Password'
+                               type='password'
+                               onChange={(ch): void => this.setState({pwdText: ch.target.value})}
+                               value={this.state.pwdText}/>
+                    </div>
+                    <div>
+                        <Button title='Submit' onClick={(): void => {
+                            this.props.submit(this.state.pwdText);
+                        }}/>
+                    </div>
+                </div>
+            </>
+        );
+    }
+}
+
+export default AuthenticationPage;

src/setupTests.js

@@ -37,6 +37,7 @@ global.prepareFailingFetchApi = () => {
 global.callAPIMock = (resonse) => {
     const helpers = require('./utils/Api');
     helpers.callAPI = jest.fn().mockImplementation((_, __, func1) => {func1(resonse);});
+    helpers.callApiUnsafe = jest.fn().mockImplementation((_, __, func1) => {func1(resonse);});
 };
 
 // code to run before each test

src/types/ApiTypes.ts

@@ -33,7 +33,7 @@ export namespace SettingsTypes {
     export interface initialApiCallData {
         DarkMode: boolean;
         Password: boolean;
-        Mediacenter_name: string;
+        MediacenterName: string;
         VideoPath: string;
     }
 

src/utils/Api.ts

@@ -47,13 +47,14 @@ interface ApiBaseRequest {
 let apiToken = ''
 
 // a callback que to be called after api token refresh
-let callQue: (() => void)[] = []
+let callQue: ((error: string) => void)[] = []
 // flag to check wheter a api refresh is currently pending
 let refreshInProcess = false;
 // store the expire seconds of token
 let expireSeconds = -1;
 
 interface APIToken {
+    error?: string;
     access_token: string;
     expires_in: number;
     scope: string;
@@ -63,8 +64,9 @@ interface APIToken {
 /**
  * refresh the api token or use that one in cookie if still valid
  * @param callback to be called after successful refresh
+ * @param password
  */
-export function refreshAPIToken(callback: () => void): void {
+export function refreshAPIToken(callback: (error: string) => void, password?: string): void {
     callQue.push(callback);
 
     // check if already is a token refresh is in process
@@ -76,30 +78,26 @@ export function refreshAPIToken(callback: () => void): void {
         refreshInProcess = true;
     }
 
-    // check if a cookie with token is available
-    const token = getTokenCookie();
-    if (token !== null) {
-        // check if token is at least valid for the next minute
-        if (token.expire > (new Date().getTime() / 1000) + 60) {
-            apiToken = token.token;
-            expireSeconds = token.expire;
-            callback();
-            console.log("token still valid...")
-            callFuncQue();
-            return;
-        }
+    if (apiTokenValid()) {
+        console.log("token still valid...")
+        callFuncQue('');
+        return;
     }
 
     const formData = new FormData();
     formData.append("grant_type", "client_credentials");
     formData.append("client_id", "openmediacenter");
-    formData.append("client_secret", 'openmediacenter');
+    formData.append("client_secret", password ? password : 'openmediacenter');
     formData.append("scope", 'all');
 
 
     fetch(getBackendDomain() + '/token', {method: 'POST', body: formData})
         .then((response) => response.json()
             .then((result: APIToken) => {
+                if (result.error) {
+                    callFuncQue(result.error);
+                    return;
+                }
                 console.log(result)
                 // set api token
                 apiToken = result.access_token;
@@ -107,17 +105,32 @@ export function refreshAPIToken(callback: () => void): void {
                 expireSeconds = (new Date().getTime() / 1000) + result.expires_in;
                 setTokenCookie(apiToken, expireSeconds);
                 // call all handlers and release flag
-                callFuncQue();
+                callFuncQue('');
             }));
 }
 
+export function apiTokenValid(): boolean {
+    // check if a cookie with token is available
+    const token = getTokenCookie();
+    if (token !== null) {
+        // check if token is at least valid for the next minute
+        if (token.expire > (new Date().getTime() / 1000) + 60) {
+            apiToken = token.token;
+            expireSeconds = token.expire;
+
+            return true;
+        }
+    }
+    return false;
+}
+
 /**
  * call all qued callbacks
  */
-function callFuncQue(): void {
+function callFuncQue(error: string): void {
     // call all pending handlers
     callQue.map(func => {
-        return func();
+        return func(error);
     })
     // reset pending que
     callQue = []
@@ -221,6 +234,25 @@ export function callAPI<T>(apinode: APINode,
     })
 }
 
+/**
+ * make a public unsafe api call (without token) -- use as rare as possible only for initialization (eg. check if pwd is neccessary)
+ * @param apinode
+ * @param fd
+ * @param callback
+ */
+export function callApiUnsafe<T>(apinode: APINode, fd: ApiBaseRequest, callback: (_: T) => void, errorcallback?: (_: string) => void): void {
+    fetch(getAPIDomain() + apinode, {method: 'POST', body: JSON.stringify(fd),}).then((response) => {
+        if (response.status !== 200) {
+            console.log('Error: ' + response.statusText);
+            // todo place error popup here
+        } else {
+            response.json().then((result: T) => {
+                callback(result);
+            })
+        }
+    }).catch(reason => errorcallback ? errorcallback(reason) : {})
+}
+
 /**
  * A backend api call
  * @param apinode which api backend handler to call
@@ -249,5 +281,6 @@ export enum APINode {
     Settings = 'settings',
     Tags = 'tags',
     Actor = 'actor',
-    Video = 'video'
+    Video = 'video',
+    Init = 'init'
 }

src/utils/GlobalInfos.ts

@@ -23,6 +23,9 @@ class StaticInfos {
      */
     enableDarkTheme(enable = true): void {
         this.darktheme = enable;
+        this.handlers.map(func => {
+            return func();
+        })
     }
 
     /**
@@ -33,6 +36,11 @@ class StaticInfos {
         return this.isDarkTheme() ? darktheme : lighttheme;
     }
 
+    handlers: (() => void)[] = [];
+    onThemeChange(func: () => void): void {
+        this.handlers.push(func);
+    }
+
     /**
      * set the current videopath
      * @param vidpath videopath with beginning and ending slash