feat: check swap cli wallet rpc version and remove if not fluorine fermi

- swap cli will check its wallet rpc version and delete the binary if
  its version does not match on "Fluorine Fermi". it will then download
  the newer version.
- adds download progress for wallet rpc

swap/src/monero/wallet_rpc.rs

@@ -39,6 +39,8 @@ const PACKED_FILE: &str = "monero-wallet-rpc";
 #[cfg(target_os = "windows")]
 const PACKED_FILE: &str = "monero-wallet-rpc.exe";
 
+const CODENAME: &str = "Fluorine Fermi";
+
 #[derive(Debug, Clone, Copy, thiserror::Error)]
 #[error("monero wallet rpc executable not found in downloaded archive")]
 pub struct ExecutableNotFoundInArchive;
@@ -75,6 +77,22 @@ impl WalletRpc {
             remove_file(monero_wallet_rpc.archive_path()).await?;
         }
 
+        // check the monero-wallet-rpc version
+        let exec_path = monero_wallet_rpc.exec_path();
+        tracing::debug!("exec path: {}", exec_path.display());
+
+        if exec_path.exists() {
+            let output = Command::new(&exec_path).arg("--version").output().await?;
+            let version = String::from_utf8_lossy(&output.stdout);
+            tracing::debug!("RPC version output: {}", version);
+
+            if !version.contains(CODENAME) {
+                tracing::info!("Removing old version of monero-wallet-rpc");
+                tokio::fs::remove_file(exec_path).await?;
+            }
+        }
+
+        // if monero-wallet-rpc doesn't exist then download it
         if !monero_wallet_rpc.exec_path().exists() {
             let mut options = OpenOptions::new();
             let mut file = options
@@ -112,12 +130,24 @@ impl WalletRpc {
             let mut stream = FramedRead::new(StreamReader::new(byte_stream), BytesCodec::new())
                 .map_ok(|bytes| bytes.freeze());
 
+            let (mut received, mut notified) = (0, 0);
             while let Some(chunk) = stream.next().await {
-                file.write(&chunk?).await?;
+                let bytes = chunk?;
+                received += bytes.len();
+                // the stream is decompressed as it is downloaded
+                // file is compressed approx 3:1 in bz format
+                let total = 3 * content_length;
+                let percent = 100 * received as u64 / total;
+                if percent != notified && percent % 10 == 0 {
+                    tracing::debug!("{}%", percent);
+                    notified = percent;
+                }
+                file.write(&bytes).await?;
             }
 
             file.flush().await?;
 
+            tracing::debug!("Extracting archive");
             Self::extract_archive(&monero_wallet_rpc).await?;
         }
         Ok(monero_wallet_rpc)