From f9ccb9415739864321f3ea482ce94695f775b9af Mon Sep 17 00:00:00 2001
From: Sebastian <sebasjm@gmail.com>
Date: Thu, 21 Jul 2022 10:36:15 -0300
Subject: withdraw as module

---
 .../taler-wallet-webextension/src/utils/index.ts   | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'packages/taler-wallet-webextension/src/utils')

diff --git a/packages/taler-wallet-webextension/src/utils/index.ts b/packages/taler-wallet-webextension/src/utils/index.ts
index aab748f90..a48352840 100644
--- a/packages/taler-wallet-webextension/src/utils/index.ts
+++ b/packages/taler-wallet-webextension/src/utils/index.ts
@@ -19,6 +19,7 @@ import {
   Amounts,
   GetExchangeTosResult,
 } from "@gnu-taler/taler-util";
+import { VNode } from "preact";
 
 function getJsonIfOk(r: Response): Promise<any> {
   if (r.ok) {
@@ -190,3 +191,24 @@ export interface TermsDocumentPdf {
   type: "pdf";
   location: URL;
 }
+
+export type StateFunc<S> = (p: S) => VNode;
+
+export type StateViewMap<StateType extends { status: string }> = {
+  [S in StateType as S["status"]]: StateFunc<S>;
+};
+
+export function compose<SType extends { status: string }, PType>(
+  name: string,
+  hook: (p: PType) => SType,
+  vs: StateViewMap<SType>,
+): (p: PType) => VNode {
+  const Component = (p: PType): VNode => {
+    const state = hook(p);
+    const s = state.status as unknown as SType["status"];
+    const c = vs[s] as unknown as StateFunc<SType>;
+    return c(state);
+  };
+  Component.name = `${name}`;
+  return Component;
+}
-- 
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