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Original file line number | Diff line number | Diff line change |
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use std::io::{self, Write}; | ||
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||
use anyhow::{anyhow, Result}; | ||
use cdk::{ | ||
amount::SplitTarget, | ||
nuts::{nut18::TransportType, PaymentRequest, PaymentRequestPayload}, | ||
wallet::{MultiMintWallet, SendKind}, | ||
}; | ||
use clap::Args; | ||
use nostr_sdk::{nips::nip19::Nip19Profile, Client as NostrClient, EventBuilder, FromBech32, Keys}; | ||
use reqwest::Client; | ||
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#[derive(Args)] | ||
pub struct PayRequestSubCommand { | ||
payment_request: PaymentRequest, | ||
} | ||
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pub async fn pay_request( | ||
multi_mint_wallet: &MultiMintWallet, | ||
sub_command_args: &PayRequestSubCommand, | ||
) -> Result<()> { | ||
let payment_request = &sub_command_args.payment_request; | ||
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let unit = payment_request.unit; | ||
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let amount = match payment_request.amount { | ||
Some(amount) => amount, | ||
None => { | ||
println!("Enter the amount you would like to pay"); | ||
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let mut user_input = String::new(); | ||
let stdin = io::stdin(); | ||
io::stdout().flush().unwrap(); | ||
stdin.read_line(&mut user_input)?; | ||
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let amount: u64 = user_input.trim().parse()?; | ||
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amount.into() | ||
} | ||
}; | ||
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let request_mints = &payment_request.mints; | ||
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let wallet_mints = multi_mint_wallet.get_wallets().await; | ||
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// Wallets where unit, balance and mint match request | ||
let mut matching_wallets = vec![]; | ||
|
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for wallet in wallet_mints.iter() { | ||
let balance = wallet.total_balance().await?; | ||
|
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if let Some(request_mints) = request_mints { | ||
if !request_mints.contains(&wallet.mint_url) { | ||
continue; | ||
} | ||
} | ||
|
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if let Some(unit) = unit { | ||
if wallet.unit != unit { | ||
continue; | ||
} | ||
} | ||
|
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if balance >= amount { | ||
matching_wallets.push(wallet); | ||
} | ||
} | ||
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let matching_wallet = matching_wallets.first().unwrap(); | ||
|
||
// We prefer nostr transport if it is available to hide ip. | ||
let transport = payment_request | ||
.transports | ||
.iter() | ||
.find(|t| t._type == TransportType::Nostr) | ||
.or_else(|| { | ||
payment_request | ||
.transports | ||
.iter() | ||
.find(|t| t._type == TransportType::HttpPost) | ||
}) | ||
.ok_or(anyhow!("No supported transport method found"))?; | ||
|
||
let proofs = matching_wallet | ||
.send( | ||
amount, | ||
None, | ||
None, | ||
&SplitTarget::default(), | ||
&SendKind::default(), | ||
true, | ||
) | ||
.await? | ||
.proofs() | ||
.get(&matching_wallet.mint_url) | ||
.unwrap() | ||
.clone(); | ||
|
||
let payload = PaymentRequestPayload { | ||
id: payment_request.payment_id.clone(), | ||
memo: None, | ||
mint: matching_wallet.mint_url.clone(), | ||
unit: matching_wallet.unit, | ||
proofs, | ||
}; | ||
|
||
match transport._type { | ||
TransportType::Nostr => { | ||
let keys = Keys::generate(); | ||
let client = NostrClient::new(keys); | ||
let nprofile = Nip19Profile::from_bech32(&transport.target)?; | ||
|
||
println!("{:?}", nprofile.relays); | ||
|
||
let rumor = EventBuilder::new( | ||
nostr_sdk::Kind::from_u16(14), | ||
serde_json::to_string(&payload)?, | ||
[], | ||
); | ||
|
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let relays = nprofile.relays; | ||
|
||
for relay in relays.iter() { | ||
client.add_write_relay(relay).await?; | ||
} | ||
|
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client.connect().await; | ||
|
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let gift_wrap = client | ||
.gift_wrap_to(relays, &nprofile.public_key, rumor, None) | ||
.await?; | ||
|
||
println!( | ||
"Published event {} succufully to {}", | ||
gift_wrap.val, | ||
gift_wrap | ||
.success | ||
.iter() | ||
.map(|s| s.to_string()) | ||
.collect::<Vec<_>>() | ||
.join(", ") | ||
); | ||
|
||
if !gift_wrap.failed.is_empty() { | ||
println!( | ||
"Could not publish to {:?}", | ||
gift_wrap | ||
.failed | ||
.iter() | ||
.map(|(relay, _s)| relay.to_string()) | ||
.collect::<Vec<_>>() | ||
.join(", ") | ||
); | ||
} | ||
} | ||
|
||
TransportType::HttpPost => { | ||
let client = Client::new(); | ||
|
||
let res = client | ||
.post(transport.target.clone()) | ||
.json(&payload) | ||
.send() | ||
.await?; | ||
|
||
let status = res.status(); | ||
if status.is_success() { | ||
println!("Successfully posted payment"); | ||
} else { | ||
println!("{:?}", res); | ||
println!("Error posting payment"); | ||
} | ||
} | ||
} | ||
|
||
Ok(()) | ||
} |