advent22/ui/src/lib/helpers.ts
2026-02-21 23:48:18 +00:00

48 lines
1 KiB
TypeScript

import { nextTick, type UnwrapRef } from "vue";
import { APIError } from "./api_error";
export function objForEach<T>(obj: T, f: (k: keyof T, v: T[keyof T]) => void): void {
for (const k in obj) {
if (Object.prototype.hasOwnProperty.call(obj, k)) {
f(k, obj[k]);
}
}
}
export type VueLike<T> = T | UnwrapRef<T>;
export function unwrap_vuelike<T>(value: VueLike<T>): T {
return value as T;
}
export type Loading<T> = T | "loading" | "error";
export function unwrap_loading<T>(o: Loading<T>): T {
if (o === "loading" || o === "error") throw null;
return o;
}
export function wait_for(condition: () => boolean, action: () => void): void {
const enqueue_action = () => {
if (!condition()) {
nextTick(enqueue_action);
return;
}
action();
};
enqueue_action();
}
export function handle_error(error: unknown): void {
if (error instanceof APIError) {
error.alert();
} else {
console.error(error);
}
}
export function name_door(day: number): string {
return `Türchen ${day}`;
}