/*
    In the first approach, no changes need to be made to the existing stellar js sdk.
    In this approach I mimick the Go reference implementation and use the master
    keypair of the empty string network passphrase.
*/

// 1. build the partial transaction (excludes the source account and sequence numbers
// Define an empty address
s.Network.use(new s.Network(""));
const emptyAddress_a1 = s.Keypair.master().publicKey();

// Define an account
const account_a1 = new s.Account(emptyAddress_a1, "0");

// Define a transaction object
let tx_a1 = new s.TransactionBuilder(account_a1);

// Add payment operation
tx_a1.addOperation(s.Operation.payment({
    destination: "GASIA4ZTLZEF4TRLLDQCQIT43KNZKSAEU3PX3BQVNEZVNJ4FM7LBIPTK",
    asset: s.Asset.native(),
    amount: "1",
}))

// Add a memo if included (Optional)
tx_a1.addMemo(s.Memo.text("SEP, SEP 007"));

// 2. Convert to a transaction envelope
tx_a1 = tx_a1.build().toEnvelope();

// 3. Convert to Base64
tx_a1 = tx_a1.toXDR('base64');

// 4. Url encode (Optional)
const url_a1 = encodeURIComponent(tx_a1);

// 5. Print out ("web+stellar:tx?xdr=" + urlEncoded) (Optional)
console.log(`web+stellar:tx?xdr=${url_a1}`);
/*
    Result:
    web+stellar:tx?xdr=AAAAAL6Qe0ushP7lzogR2y3vyb8LKiorvD1U2KIlfs1wRBliAAAAZAAAAAAAAAABAAAAAAAAAAEAAAAMU0VQLCBTRVAgMDA3AAAAAQAAAAAAAAABAAAAACSAczNeSF5OK1jgKCJ82puVSASm332GFWkzVqeFZ9YUAAAAAAAAAAAAmJaAAAAAAAAAAAA%3D
*/