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/*
This file is part of GNU Taler
(C) 2019 GNUnet e.V.
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/>
*/
/**
* Imports.
*/
import { Wallet } from "../wallet";
import { getDefaultNodeWallet, withdrawTestBalance } from "../headless/helpers";
import { openPromise } from "../promiseUtils";
export function installAndroidWalletListener() {
// @ts-ignore
const sendMessage: (m: string) => void = global.__akono_sendMessage;
if (typeof sendMessage !== "function") {
const errMsg =
"FATAL: cannot install android wallet listener: akono functions missing";
console.error(errMsg);
throw new Error(errMsg);
}
let maybeWallet: Wallet | undefined;
const wp = openPromise<Wallet>();
const onMessage = async (msgStr: any) => {
if (typeof msgStr !== "string") {
console.error("expected string as message");
return;
}
const msg = JSON.parse(msgStr);
const operation = msg.operation;
if (typeof operation !== "string") {
console.error(
"message to android wallet helper must contain operation of type string",
);
return;
}
const id = msg.id;
let result;
switch (operation) {
case "init":
{
maybeWallet = await getDefaultNodeWallet({
notifyHandler: async () => {
sendMessage(JSON.stringify({ type: "notification" }));
},
});
wp.resolve(maybeWallet);
result = true;
}
break;
case "getBalances":
{
const wallet = await wp.promise;
result = await wallet.getBalances();
}
break;
case "withdrawTestkudos":
{
const wallet = await wp.promise;
result = await withdrawTestBalance(wallet);
}
break;
case "downloadProposal":
{
const wallet = await wp.promise;
result = wallet.downloadProposal(msg.args.url);
}
break;
default:
console.error(`operation "${operation}" not understood`);
return;
}
const respMsg = { result, id, operation, type: "response" };
console.log("sending message back", respMsg);
sendMessage(JSON.stringify(respMsg));
};
// @ts-ignore
globalThis.__akono_onMessage = onMessage;
console.log("android wallet listener installed");
}
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