1 files changed, 92 insertions, 0 deletions
diff --git a/packages/taler-wallet-webextension/src/cta/Tip/state.ts b/packages/taler-wallet-webextension/src/cta/Tip/state.ts
new file mode 100644
index 000000000..e5511074e
--- /dev/null
+++ b/packages/taler-wallet-webextension/src/cta/Tip/state.ts
@@ -0,0 +1,92 @@
+/*
+ This file is part of GNU Taler
+ (C) 2022 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+
+import { Amounts } from "@gnu-taler/taler-util";
+import { useState } from "preact/hooks";
+import { useAsyncAsHook } from "../../hooks/useAsyncAsHook.js";
+import * as wxApi from "../../wxApi.js";
+import { Props, State } from "./index.js";
+
+export function useComponentState(
+  { talerTipUri }: Props,
+  api: typeof wxApi,
+): State {
+  const [tipIgnored, setTipIgnored] = useState(false);
+
+  const tipInfo = useAsyncAsHook(async () => {
+    if (!talerTipUri) throw Error("ERROR_NO-URI-FOR-TIP");
+    const tip = await api.prepareTip({ talerTipUri });
+    return { tip };
+  });
+
+  if (!tipInfo) {
+    return {
+      status: "loading",
+      error: undefined,
+    }
+  }
+  if (tipInfo.hasError) {
+    return {
+      status: "loading-uri",
+      error: tipInfo,
+    };
+  }
+
+  const { tip } = tipInfo.response;
+
+  const doAccept = async (): Promise<void> => {
+    await api.acceptTip({ walletTipId: tip.walletTipId });
+    tipInfo.retry();
+  };
+
+  const doIgnore = async (): Promise<void> => {
+    setTipIgnored(true);
+  };
+
+  const baseInfo = {
+    merchantBaseUrl: tip.merchantBaseUrl,
+    exchangeBaseUrl: tip.exchangeBaseUrl,
+    amount: Amounts.parseOrThrow(tip.tipAmountEffective),
+    error: undefined,
+  }
+
+  if (tipIgnored) {
+    return {
+      status: "ignored",
+      ...baseInfo,
+    };
+  }
+
+  if (tip.accepted) {
+    return {
+      status: "accepted",
+      ...baseInfo,
+    };
+  }
+
+  return {
+    status: "ready",
+    ...baseInfo,
+    accept: {
+      onClick: doAccept,
+    },
+    ignore: {
+      onClick: doIgnore,
+    },
+  };
+}
+