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|
extern crate chrono;
extern crate strfmt;
use anyhow::{bail, Context, Result};
use bdk::{bitcoin::Network, TransactionDetails};
use chrono::DateTime;
use serde::Deserialize;
use strfmt::strfmt;
use crate::wallets::WalletInfo;
pub struct MessageParams<'a, 'b> {
tx: &'a TransactionDetails,
wallet: &'b str,
total_balance: u64,
current_height: u32,
network: Network,
}
impl<'a, 'b> MessageParams<'a, 'b> {
pub fn new(tx: &'a TransactionDetails, wallet: &'b WalletInfo) -> Self {
Self {
tx,
wallet: wallet.name(),
total_balance: wallet.total_balance().unwrap_or_default(),
current_height: wallet.get_height().unwrap_or_default(),
network: wallet.get_network(),
}
}
pub fn tx_net(&self) -> i64 {
(self.tx.received as i64) - (self.tx.sent as i64)
}
pub fn tx_height(&self) -> Option<u32> {
self.tx.confirmation_time.as_ref().map(|x| x.height)
}
pub fn confs(&self) -> u32 {
let current_height = self.current_height;
self.tx_height()
.map(|h| {
if current_height >= h {
current_height - h
} else {
0
}
})
.unwrap_or_default()
}
pub fn conf_timestamp(&self) -> String {
self.tx
.confirmation_time
.as_ref()
.map(|x| {
DateTime::from_timestamp(x.timestamp as i64, 0)
.unwrap_or_default()
.format("%Y-%m-%d %H:%M:%S UTC")
.to_string()
})
.unwrap_or_default()
}
pub fn txid(&self) -> String {
self.tx.txid.to_string()
}
pub fn txid_short(&self) -> String {
let txid = self.txid();
format!("{}...{}", &txid[..6], &txid[txid.len() - 6..])
}
fn tx(&self) -> &TransactionDetails {
self.tx
}
pub fn network(&self) -> Network {
self.network
}
}
#[derive(Deserialize, Debug, PartialEq, Copy, Clone)]
#[serde(rename_all = "lowercase")]
pub enum MessageFormat {
Plain,
Markdown,
Html,
}
#[derive(Deserialize, Default, Debug)]
pub struct BlockExplorers {
mainnet: Option<String>,
testnet: Option<String>,
signet: Option<String>,
}
impl BlockExplorers {
fn mainnet(&self) -> &str {
self.mainnet
.as_deref()
.unwrap_or("https://mempool.space/tx/{txid}")
}
fn testnet(&self) -> &str {
self.testnet
.as_deref()
.unwrap_or("https://mempool.space/testnet/tx/{txid}")
}
fn signet(&self) -> &str {
self.signet
.as_deref()
.unwrap_or("https://mempool.space/signet/tx/{txid}")
}
pub fn get_tx_url_template(&self, network: &Network) -> Result<&str> {
Ok(match network {
Network::Bitcoin => self.mainnet(),
Network::Testnet => self.testnet(),
Network::Signet => self.signet(),
_ => bail!("unsupported network"),
})
}
pub fn get_tx_url(&self, network: &Network, txid: &str) -> Result<String> {
let template = self.get_tx_url_template(network)?;
strfmt!(template, txid => txid.to_string())
.with_context(|| format!("bad block explorer URL template '{}'", template))
}
}
#[derive(Deserialize, Default, Debug)]
pub struct MessageConfig {
subject: Option<String>,
body: Option<String>,
format: Option<MessageFormat>,
#[serde(default)]
block_explorers: BlockExplorers,
}
impl MessageConfig {
pub fn subject_template(&self) -> &str {
self.subject
.as_deref()
.unwrap_or("[{wallet}] new transaction")
}
pub fn body_template(&self) -> &str {
self.body
.as_deref()
.unwrap_or("net: {tx_net} sats, balance: {total_balance} sats, txid: {txid_short}")
}
pub fn replace_template_params(
&self,
template: &str,
params: &MessageParams,
) -> Result<String> {
strfmt!(template,
tx_net => params.tx_net(),
wallet => params.wallet.to_string(),
total_balance => params.total_balance,
txid => params.txid(),
txid_short => params.txid_short(),
received => params.tx().received,
sent => params.tx().sent,
fee => params.tx().fee.unwrap_or_default(),
current_height => params.current_height,
tx_height => params.tx_height().unwrap_or_default(),
confs => params.confs(),
conf_timestamp => params.conf_timestamp(),
tx_url => self.get_tx_url(Some(params))?
)
.with_context(|| format!("invalid template '{}'", template))
}
pub fn subject(&self, params: Option<&MessageParams>) -> Result<String> {
match params {
Some(p) => self.replace_template_params(self.subject_template(), p),
None => Ok(self.subject_template().to_string()),
}
}
pub fn body(&self, params: Option<&MessageParams>) -> Result<String> {
match params {
Some(p) => self.replace_template_params(self.body_template(), p),
None => Ok(self.body_template().to_string()),
}
}
#[allow(dead_code)]
pub fn format(&self) -> &MessageFormat {
self.format.as_ref().unwrap_or(&MessageFormat::Plain)
}
pub fn get_tx_url(&self, params: Option<&MessageParams>) -> Result<String> {
match params {
Some(p) => self.block_explorers.get_tx_url(&p.network(), &p.txid()),
None => Ok(self
.block_explorers
.get_tx_url_template(&Network::Bitcoin)?
.to_string()),
}
}
}
|
