refactoring (#178)

* unify components import

* refactor config and app context

* refactor icons

* refactor date, error, mxid and storage

* refactor synapse utils

src/utils/config.ts

@@ -0,0 +1,82 @@
+export interface Config {
+  restrictBaseUrl: string | string[];
+  asManagedUsers: RegExp[];
+  menu: MenuItem[];
+}
+
+export interface MenuItem {
+  label: string;
+  icon: string;
+  url: string;
+}
+
+export const WellKnownKey = "cc.etke.synapse-admin";
+
+// current configuration
+let config: Config = {
+  restrictBaseUrl: "",
+  asManagedUsers: [],
+  menu: [],
+};
+
+export const FetchConfig = async () => {
+  try {
+    const resp = await fetch("config.json");
+    const configJSON = await resp.json();
+    console.log("Loaded config.json", configJSON);
+    LoadConfig(configJSON);
+  } catch (e) {
+    console.error(e);
+  }
+
+  // if home_server is set, try to load https://home_server/.well-known/matrix/client
+  const homeserver = localStorage.getItem("home_server");
+  if (homeserver) {
+    try {
+      const resp = await fetch(`https://${homeserver}/.well-known/matrix/client`);
+        const configWK = await resp.json();
+      if (!configWK[WellKnownKey]) {
+        console.log(`Loaded https://${homeserver}.well-known/matrix/client, but it doesn't contain ${WellKnownKey} key, skipping`, configWK);
+      } else {
+          console.log(`Loaded https://${homeserver}.well-known/matrix/client`, configWK);
+            LoadConfig(configWK[WellKnownKey]);
+        }
+    } catch (e) {
+      console.log(`https://${homeserver}/.well-known/matrix/client not found, skipping`, e);
+    }
+  }
+
+}
+
+// load config from context
+export const LoadConfig = (context: any) => {
+  if (context?.restrictBaseUrl) {
+    config.restrictBaseUrl = context.restrictBaseUrl as string | string[];
+  }
+
+  if (context?.asManagedUsers) {
+    config.asManagedUsers = context.asManagedUsers.map((regex: string) => new RegExp(regex));
+  }
+
+  let menu: MenuItem[] = [];
+  if (context?.menu) {
+    menu = context.menu as MenuItem[];
+  }
+  if (menu.length > 0) {
+    config.menu = menu;
+  }
+}
+
+// get config
+export const GetConfig = (): Config => {
+  return config;
+}
+
+
+// clear config
+export const ClearConfig = () => {
+  // config.json
+  config = {} as Config;
+  // session
+  localStorage.clear();
+}