More refactoring to make the driver do the work

side-node/src/bitcoin/driver.rs

@@ -1,5 +1,43 @@
-use crate::bitcoin;
+use std::str::FromStr;
 
-pub(crate) async fn run() {
-    bitcoin::clients::esplora::run().await.unwrap();
+use bdk_wallet::bitcoin::{Address, Amount, Network};
+
+use crate::bitcoin::clients;
+
+/// Demonstrates the use of bdk with the Esplora client.
+///
+/// This is more complex than the bare `bdk` crate, but the esplora client works.
+///
+/// Also, it very handily works with the mutinynet.com esplora server, which is configured
+/// with 30 second block times.
+pub(crate) async fn run() -> Result<(), anyhow::Error> {
+    let (mut wallet, mut db) = clients::esplora::create_wallet("dave")?;
+
+    let _next_address = clients::esplora::next_unused_address(&mut wallet, &mut db)?;
+
+    let balance = wallet.balance();
+    println!("Wallet balance before syncing: {} sats", balance.total());
+
+    let client = clients::esplora::sync(&mut wallet, &mut db).await?;
+
+    let balance = wallet.balance();
+    println!("Wallet balance after syncing: {} sats", balance.total());
+
+    let faucet_address = Address::from_str("mkHS9ne12qx9pS9VojpwU5xtRd4T7X7ZUt")?
+        .require_network(Network::Signet)?;
+    let send_amount = Amount::from_sat(5000);
+
+    if balance.total() < send_amount {
+        println!(
+            "Please send at least {} sats to the receiving address",
+            send_amount
+        );
+        std::process::exit(0);
+    }
+
+    let tx = clients::esplora::build_send_tx(wallet, faucet_address, send_amount)?;
+    client.broadcast(&tx).await?;
+    println!("Tx broadcasted! Txid: {}", tx.compute_txid());
+
+    Ok(())
 }