use core::str::FromStr;
use core::time::Duration;
use crate::io;
+use crate::ln::PaymentHash;
use crate::ln::features::InvoiceRequestFeatures;
use crate::ln::msgs::{DecodeError, MAX_VALUE_MSAT};
+use crate::offers::invoice::{BlindedPayInfo, InvoiceBuilder};
use crate::offers::invoice_request::{InvoiceRequestTlvStream, InvoiceRequestTlvStreamRef};
use crate::offers::offer::{OfferTlvStream, OfferTlvStreamRef};
use crate::offers::parse::{Bech32Encode, ParseError, ParsedMessage, SemanticError};
/// [`Offer`]: crate::offers::offer::Offer
#[derive(Clone, Debug)]
pub struct Refund {
- bytes: Vec<u8>,
- contents: RefundContents,
+ pub(super) bytes: Vec<u8>,
+ pub(super) contents: RefundContents,
}
/// The contents of a [`Refund`], which may be shared with an [`Invoice`].
self.contents.payer_note.as_ref().map(|payer_note| PrintableString(payer_note.as_str()))
}
+ /// Creates an [`Invoice`] for the refund with the given required fields.
+ ///
+ /// Unless [`InvoiceBuilder::relative_expiry`] is set, the invoice will expire two hours after
+ /// `created_at`. The caller is expected to remember the preimage of `payment_hash` in order to
+ /// claim a payment for the invoice.
+ ///
+ /// The `signing_pubkey` is required to sign the invoice since refunds are not in response to an
+ /// offer, which does have a `signing_pubkey`.
+ ///
+ /// The `payment_paths` parameter is useful for maintaining the payment recipient's privacy. It
+ /// must contain one or more elements.
+ ///
+ /// Errors if the request contains unknown required features.
+ ///
+ /// [`Invoice`]: crate::offers::invoice::Invoice
+ pub fn respond_with(
+ &self, payment_paths: Vec<(BlindedPath, BlindedPayInfo)>, created_at: Duration,
+ payment_hash: PaymentHash, signing_pubkey: PublicKey
+ ) -> Result<InvoiceBuilder, SemanticError> {
+ if self.features().requires_unknown_bits() {
+ return Err(SemanticError::UnknownRequiredFeatures);
+ }
+
+ InvoiceBuilder::for_refund(self, payment_paths, created_at, payment_hash, signing_pubkey)
+ }
+
#[cfg(test)]
fn as_tlv_stream(&self) -> RefundTlvStreamRef {
self.contents.as_tlv_stream()