From bc0a7dbf2be7e1c09c5b3a3a03eb4506231616ab Mon Sep 17 00:00:00 2001
From: yse <70684173+hydra-yse@users.noreply.github.com>
Date: Thu, 6 Feb 2025 09:19:18 +0100
Subject: [PATCH] feat: add log header on SDK init (#717)

---
 lib/core/src/sdk.rs   | 19 +++++++++++--------
 lib/core/src/utils.rs | 22 +++++++++++++++++++++-
 2 files changed, 32 insertions(+), 9 deletions(-)

diff --git a/lib/core/src/sdk.rs b/lib/core/src/sdk.rs
index 54e28c0..f5146a2 100644
--- a/lib/core/src/sdk.rs
+++ b/lib/core/src/sdk.rs
@@ -99,14 +99,22 @@ impl LiquidSdk {
     ///     * `mnemonic` - the Liquid wallet mnemonic
     ///     * `config` - the SDK [Config]
     pub async fn connect(req: ConnectRequest) -> Result<Arc<LiquidSdk>> {
+        let start_ts = Instant::now();
+
         let signer = Box::new(SdkSigner::new(
             req.mnemonic.as_ref(),
             req.config.network == LiquidNetwork::Mainnet,
         )?);
 
-        Self::connect_with_signer(ConnectWithSignerRequest { config: req.config }, signer)
-            .inspect_err(|e| error!("Failed to connect: {:?}", e))
-            .await
+        let sdk =
+            Self::connect_with_signer(ConnectWithSignerRequest { config: req.config }, signer)
+                .inspect_err(|e| error!("Failed to connect: {:?}", e))
+                .await;
+
+        let init_time = Instant::now().duration_since(start_ts);
+        utils::log_print_header(init_time);
+
+        sdk
     }
 
     pub async fn connect_with_signer(
@@ -285,8 +293,6 @@ impl LiquidSdk {
     /// Should only be called as part of [LiquidSdk::connect].
     async fn start(self: &Arc<LiquidSdk>) -> SdkResult<()> {
         let mut is_started = self.is_started.write().await;
-        let start_ts = Instant::now();
-
         self.persister
             .update_send_swaps_by_state(Created, TimedOut)
             .inspect_err(|e| error!("Failed to update send swaps by state: {:?}", e))?;
@@ -295,9 +301,6 @@ impl LiquidSdk {
             .inspect_err(|e| error!("Failed to start background tasks: {:?}", e))
             .await?;
         *is_started = true;
-
-        let start_duration = start_ts.elapsed();
-        info!("Liquid SDK initialized in: {start_duration:?}");
         Ok(())
     }
 
diff --git a/lib/core/src/utils.rs b/lib/core/src/utils.rs
index fc438da..7e85d8f 100644
--- a/lib/core/src/utils.rs
+++ b/lib/core/src/utils.rs
@@ -1,5 +1,5 @@
 use std::str::FromStr;
-use std::time::{SystemTime, UNIX_EPOCH};
+use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
 use crate::ensure_sdk;
 use crate::error::{PaymentError, SdkResult};
@@ -147,6 +147,26 @@ pub(crate) fn increment_invoice_amount_up_to_drain_amount(
     }
 }
 
+pub(crate) fn log_print_header(init_time_ms: Duration) {
+    log::info!(
+        "
+            ↘↘↘
+         ↘↘↘↘↘↘↘↘       
+           ↘↘↘↘↘↘↘↘    
+     ↘↘↘↘↘       ↘↘↘↘   
+                 ↘↘↘      Breez SDK Nodeless - version {}
+ ↘↘↘↘↘↘↘↘↘  ↘↘↘↘↘↘↘↘↘     Initialization time: {init_time_ms:?}
+                  ↘↘↘↘    Github: https://github.com/breez/breez-sdk-liquid
+   ↘↘↘↘↘↘↘↘↘↘↘↘    ↘↘↘↘   Docs: https://sdk-doc-liquid.breez.technology/
+                  ↘↘↘↘↘ 
+      ↘↘↘↘↘↘↘↘↘↘↘↘↘↘↘   
+        ↘↘↘↘↘↘↘↘↘↘
+            ↘↘↘
+    ",
+        env!("CARGO_PKG_VERSION"),
+    );
+}
+
 #[cfg(test)]
 mod tests {
     use crate::error::PaymentError;