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58 lines
1.9 KiB
58 lines
1.9 KiB
use crate::bitcoin::Wallet;
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use crate::database::{Database, Swap};
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use crate::protocol::bob::BobState;
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use anyhow::{bail, Result};
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use std::sync::Arc;
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use uuid::Uuid;
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#[derive(thiserror::Error, Debug, Clone, Copy)]
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#[error("Cannot refund because swap {0} was not cancelled yet. Make sure to cancel the swap before trying to refund.")]
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pub struct SwapNotCancelledYet(pub Uuid);
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pub async fn refund(
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swap_id: Uuid,
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bitcoin_wallet: Arc<Wallet>,
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db: Database,
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force: bool,
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) -> Result<Result<BobState, SwapNotCancelledYet>> {
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let state = db.get_state(swap_id)?.try_into_bob()?.into();
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let state6 = if force {
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match state {
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BobState::BtcLocked(state3) => state3.cancel(),
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BobState::XmrLockProofReceived { state, .. } => state.cancel(),
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BobState::XmrLocked(state4) => state4.cancel(),
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BobState::EncSigSent(state4) => state4.cancel(),
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BobState::CancelTimelockExpired(state6) => state6,
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BobState::BtcCancelled(state6) => state6,
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BobState::Started { .. }
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| BobState::SwapSetupCompleted(_)
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| BobState::BtcRedeemed(_)
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| BobState::BtcRefunded(_)
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| BobState::XmrRedeemed { .. }
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| BobState::BtcPunished { .. }
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| BobState::SafelyAborted => bail!(
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"Cannot refund swap {} because it is in state {} which is not refundable.",
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swap_id,
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state
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),
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}
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} else {
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match state {
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BobState::BtcCancelled(state6) => state6,
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_ => {
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return Ok(Err(SwapNotCancelledYet(swap_id)));
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}
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}
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};
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state6.publish_refund_btc(bitcoin_wallet.as_ref()).await?;
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let state = BobState::BtcRefunded(state6);
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let db_state = state.clone().into();
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db.insert_latest_state(swap_id, Swap::Bob(db_state)).await?;
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Ok(Ok(state))
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}
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