chore (frontend): move url in frontend

public/assets/lib/rx.js

@@ -0,0 +1,49 @@
+import { onDestroy } from "./skeleton/index.js";
+import * as rxjs from "./vendor/rxjs.min.js";
+
+// https://github.com/ReactiveX/rxjs/issues/4416#issuecomment-620847759
+import * as ajaxModule from "./vendor/rxjs-ajax.min.js";
+
+export default rxjs;
+export const ajax = ajaxModule.ajax;
+
+export function effect(obs) {
+    const tmp = obs.subscribe(() => {}, (err) => { throw err; });
+    onDestroy(() => tmp.unsubscribe());
+}
+
+const getFn = (obj, arg0, ...args) => {
+    if (arg0 === undefined) return obj;
+    const next = obj[arg0];
+    return getFn(next.bind ? next.bind(obj) : next, ...args);
+};
+
+export function applyMutation($node, ...keys) {
+    if (!$node) throw new Error("undefined node");
+    const execute = getFn($node, ...keys);
+    return rxjs.tap((val) => Array.isArray(val) ? execute(...val) : execute(val));
+}
+
+export function applyMutations($node, ...keys) {
+    if (!$node) throw new Error("undefined node");
+    const execute = getFn($node, ...keys);
+    return rxjs.tap((vals) => vals.forEach((val) => {
+        execute(val);
+    }));
+}
+
+export function stateMutation($node, attr) {
+    if (!$node) throw new Error("undefined node");
+    return rxjs.tap((val) => $node[attr] = val);
+}
+
+export function preventDefault() {
+    return rxjs.tap((e) => e.preventDefault());
+}
+
+export function onClick($node) {
+    if (!$node) return rxjs.EMPTY;
+    return rxjs.fromEvent($node, "click").pipe(
+        rxjs.map(() => $node),
+    );
+}