1 files changed, 86 insertions, 0 deletions
diff --git a/packages/taler-wallet-webextension/src/cta/TransferCreate/state.ts b/packages/taler-wallet-webextension/src/cta/TransferCreate/state.ts
new file mode 100644
index 000000000..9853f05ff
--- /dev/null
+++ b/packages/taler-wallet-webextension/src/cta/TransferCreate/state.ts
@@ -0,0 +1,86 @@
+/*
+ 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, TalerErrorDetail } from "@gnu-taler/taler-util";
+import { TalerError } from "@gnu-taler/taler-wallet-core";
+import { useState } from "preact/hooks";
+import * as wxApi from "../../wxApi.js";
+import { Props, State } from "./index.js";
+
+export function useComponentState(
+  { amount: amountStr }: Props,
+  api: typeof wxApi,
+): State {
+  const amount = Amounts.parseOrThrow(amountStr)
+
+  const [subject, setSubject] = useState("");
+  const [talerUri, setTalerUri] = useState("")
+  const [operationError, setOperationError] = useState<TalerErrorDetail | undefined>(undefined)
+
+
+  if (talerUri) {
+    return {
+      status: "show-qr",
+      talerUri,
+      error: undefined,
+      close: () => { null },
+    }
+  }
+
+
+  async function accept(): Promise<string> {
+    try {
+
+      const resp = await api.initiatePeerPushPayment({
+        amount: Amounts.stringify(amount),
+        partialContractTerms: {
+          summary: subject
+        }
+      })
+      return resp.talerUri
+    } catch (e) {
+      if (e instanceof TalerError) {
+        setOperationError(e.errorDetail)
+      }
+      console.error(e)
+      throw Error("error trying to accept")
+    }
+  }
+  return {
+    status: "ready",
+    invalid: !subject || Amounts.isZero(amount),
+    subject: {
+      value: subject,
+      onInput: async (e) => setSubject(e)
+    },
+    copyToClipboard: {
+      onClick: async () => {
+        const uri = await accept();
+        navigator.clipboard.writeText(uri || "");
+      }
+    },
+    showQr: {
+      onClick: async () => {
+        const uri = await accept();
+        setTalerUri(uri)
+      }
+    },
+    chosenAmount: amount,
+    toBeReceived: amount,
+    error: undefined,
+    operationError
+  }
+}