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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| // Copyright (c) 2022-2023 Yuki Kishimoto | ||
| // Copyright (c) 2023-2024 Rust Nostr Developers | ||
| // Distributed under the MIT software license | ||
|
|
||
| //! Client Zapper | ||
| use std::str::FromStr; | ||
|
|
||
| use lnurl_pay::api::Lud06OrLud16; | ||
| use lnurl_pay::{LightningAddress, LnUrl}; | ||
| use nostr::nips::nip57::ZapType; | ||
| use nostr::secp256k1::XOnlyPublicKey; | ||
| use nostr::{Event, EventId, Filter, Metadata}; | ||
| #[cfg(all(feature = "webln", target_arch = "wasm32"))] | ||
| use webln::WebLN; | ||
|
|
||
| use super::{Client, Error}; | ||
|
|
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| /// Zap entity | ||
| pub enum ZapEntity { | ||
| /// Zap to event | ||
| Event(EventId), | ||
| /// Zap to public key | ||
| PublicKey(XOnlyPublicKey), | ||
| /// Lightning Address | ||
| LUD16(LightningAddress), | ||
| /// LUD06 | ||
| LUD06(LnUrl), | ||
| } | ||
|
|
||
| impl From<EventId> for ZapEntity { | ||
| fn from(value: EventId) -> Self { | ||
| Self::Event(value) | ||
| } | ||
| } | ||
|
|
||
| impl From<XOnlyPublicKey> for ZapEntity { | ||
| fn from(value: XOnlyPublicKey) -> Self { | ||
| Self::PublicKey(value) | ||
| } | ||
| } | ||
|
|
||
| /// Client Zapper | ||
| #[derive(Debug, Clone)] | ||
| pub enum ClientZapper { | ||
| /// WebLN | ||
| #[cfg(all(feature = "webln", target_arch = "wasm32"))] | ||
| WebLN(WebLN), | ||
| /// NWC (TODO) | ||
| NWC, | ||
| } | ||
|
|
||
| #[cfg(all(feature = "webln", target_arch = "wasm32"))] | ||
| impl From<WebLN> for ClientZapper { | ||
| fn from(value: WebLN) -> Self { | ||
| Self::WebLN(value) | ||
| } | ||
| } | ||
|
|
||
| impl Client { | ||
| /// Send a Zap! | ||
| pub async fn zap<T>(&self, to: T, satoshi: u64, r#_type: Option<ZapType>) -> Result<(), Error> | ||
| where | ||
| T: Into<ZapEntity>, | ||
| { | ||
| // Steps | ||
| // 1. Check if zapper is set and availabe | ||
| // 2. Get metadata of pubkey/author of event | ||
| // 3. Get invoice | ||
| // 4. Send payment | ||
|
|
||
| // Check zapper | ||
| let zapper: ClientZapper = self.zapper().await?; | ||
|
|
||
| // Get entity metadata | ||
| let to: ZapEntity = to.into(); | ||
| let lud: Lud06OrLud16 = match to { | ||
| ZapEntity::Event(event_id) => { | ||
| // Get event | ||
| let filter: Filter = Filter::new().id(event_id); | ||
| let events: Vec<Event> = self.get_events_of(vec![filter], None).await?; | ||
| let event: &Event = events.first().ok_or(Error::EventNotFound(event_id))?; | ||
| let public_key: XOnlyPublicKey = event.author(); | ||
| let metadata: Metadata = self.metadata(public_key).await?; | ||
|
|
||
| if let Some(lud16) = &metadata.lud16 { | ||
| LightningAddress::parse(lud16)?.into() | ||
| } else if let Some(lud06) = &metadata.lud06 { | ||
| LnUrl::from_str(&lud06)?.into() | ||
| } else { | ||
| return Err(Error::ImpossibleToZap(String::from("LUD06/LUD16 not set"))); | ||
| } | ||
| } | ||
| ZapEntity::PublicKey(public_key) => { | ||
| let metadata: Metadata = self.metadata(public_key).await?; | ||
|
|
||
| if let Some(lud16) = &metadata.lud16 { | ||
| LightningAddress::parse(lud16)?.into() | ||
| } else if let Some(lud06) = &metadata.lud06 { | ||
| LnUrl::from_str(&lud06)?.into() | ||
| } else { | ||
| return Err(Error::ImpossibleToZap(String::from("LUD06/LUD16 not set"))); | ||
| } | ||
| } | ||
| ZapEntity::LUD16(lnaddr) => lnaddr.into(), | ||
| ZapEntity::LUD06(lud06) => lud06.into(), | ||
| }; | ||
|
|
||
| // Get invoice | ||
| let _invoice: String = lnurl_pay::api::get_invoice(lud, satoshi / 1000, None, None).await?; | ||
|
|
||
| match zapper { | ||
| #[cfg(all(feature = "webln", target_arch = "wasm32"))] | ||
| ClientZapper::WebLN(webln) => { | ||
| webln.send_payment(_invoice).await?; | ||
| } | ||
| ClientZapper::NWC => {} | ||
| }; | ||
|
|
||
| Ok(()) | ||
| } | ||
| } |
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