feat: add wallet state (#6763)

Description
---
Adds a wallet state grpc call which returns the balance, scanned height
and wallet state

applications/minotari_app_grpc/proto/wallet.proto

@@ -33,6 +33,8 @@ import "network.proto";
 service Wallet {
   // This returns the current version
   rpc GetVersion (GetVersionRequest) returns (GetVersionResponse);
+  // This returns the current state of the wallet
+  rpc GetState (GetStateRequest) returns (GetStateResponse);
   // This checks if the wallet is healthy and running
   rpc CheckConnectivity(GetConnectivityRequest) returns (CheckConnectivityResponse);
   // Check for new updates
@@ -241,13 +243,21 @@ message GetCompletedTransactionsResponse {
 
 message GetBalanceRequest {}
 
+message GetStateRequest {}
+
 message GetBalanceResponse {
   uint64 available_balance = 1;
   uint64 pending_incoming_balance = 2;
   uint64 pending_outgoing_balance = 3;
   uint64 timelocked_balance = 4;
 }
 
+message GetStateResponse {
+  uint64 scanned_height = 1;
+  GetBalanceResponse balance = 2;
+  NetworkStatusResponse network = 3;
+}
+
 message GetUnspentAmountsResponse {
   repeated uint64 amount = 1;
 }

applications/minotari_console_wallet/src/grpc/mod.rs

@@ -1,7 +1,7 @@
 // Copyright 2022 The Tari Project
 // SPDX-License-Identifier: BSD-3-Clause
 
-mod get_balance_debounced;
+mod wallet_debouncer;
 mod wallet_grpc_server;
 
 use minotari_app_grpc::tari_rpc::TransactionEvent;

applications/minotari_console_wallet/src/grpc/get_balance_debounced.rs → applications/minotari_console_wallet/src/grpc/wallet_debouncer.rs

@@ -31,6 +31,7 @@ use minotari_wallet::{
         service::Balance,
     },
     transaction_service::handle::{TransactionEvent, TransactionServiceHandle},
+    utxo_scanner_service::handle::{UtxoScannerEvent, UtxoScannerHandle},
 };
 use tari_shutdown::ShutdownSignal;
 use tokio::sync::Mutex;
@@ -44,22 +45,25 @@ const LOG_TARGET: &str = "wallet::ui::grpc::get_balance_debounced";
 /// balance needs to be updated. When ever a client requests the balance, it will be fetched from the backend if the
 /// flag is set and clear the flag, otherwise the cached balance will be returned.
 #[derive(Clone)]
-pub struct GetBalanceDebounced {
+pub struct WalletDebouncer {
     balance: Arc<Mutex<Balance>>,
+    scanned_height: Arc<Mutex<u64>>,
     refresh_needed: Arc<Mutex<bool>>,
     output_manager_service: OutputManagerHandle,
     transaction_service: TransactionServiceHandle,
     wallet_connectivity: WalletConnectivityHandle,
+    utxo_scanner_handle: UtxoScannerHandle,
     shutdown_signal: ShutdownSignal,
     event_monitor_started: Arc<Mutex<bool>>,
 }
 
-impl GetBalanceDebounced {
-    /// Create a new GetBalanceDebounced instance.
+impl WalletDebouncer {
+    /// Create a new WalletDebouncer instance.
     pub fn new(
         output_manager_service: OutputManagerHandle,
         transaction_service: TransactionServiceHandle,
         wallet_connectivity: WalletConnectivityHandle,
+        utxo_scanner_handle: UtxoScannerHandle,
         shutdown_signal: ShutdownSignal,
     ) -> Self {
         Self {
@@ -70,9 +74,11 @@ impl GetBalanceDebounced {
                 time_locked_balance: None,
             })),
             refresh_needed: Arc::new(Mutex::new(true)),
+            scanned_height: Arc::new(Mutex::new(0)),
             output_manager_service,
             transaction_service,
             wallet_connectivity,
+            utxo_scanner_handle,
             shutdown_signal,
             event_monitor_started: Arc::new(Mutex::new(false)),
         }
@@ -138,11 +144,27 @@ impl GetBalanceDebounced {
         }
     }
 
+    async fn update_scanned_height(&self, scanned_height: u64) {
+        let mut lock = self.scanned_height.lock().await;
+        if *lock != scanned_height {
+            trace!(target: LOG_TARGET, "set_scanned_height '{}'", scanned_height);
+            *lock = scanned_height;
+        }
+    }
+
+    pub async fn get_scanned_height(&mut self) -> u64 {
+        if !self.is_event_monitor_started().await {
+            self.start_event_monitor().await;
+        }
+        *self.scanned_height.lock().await
+    }
+
     async fn monitor_events(&self) {
         let mut shutdown_signal = self.shutdown_signal.clone();
         let mut transaction_service_events = self.transaction_service.get_event_stream();
         let mut base_node_changed = self.wallet_connectivity.clone().get_current_base_node_watcher();
         let mut output_manager_service_events = self.output_manager_service.get_event_stream();
+        let mut utxo_scanner_events = self.utxo_scanner_handle.clone().get_event_receiver();
 
         loop {
             tokio::select! {
@@ -187,6 +209,29 @@ impl GetBalanceDebounced {
                         },
                     }
                 },
+                result = utxo_scanner_events.recv() => {
+                    match result {
+                        Ok(event) => {
+                            match event {
+                                UtxoScannerEvent::Progress {
+                                    current_height,..
+                                }=> {
+                                    self.update_scanned_height(current_height).await;
+                                }
+                                UtxoScannerEvent::Completed {
+                                    final_height,
+                                    ..
+                                }=> {
+                                    self.update_scanned_height(final_height).await;
+                                },
+                                _ => {}
+                            }
+                        },
+                        Err(e) => {
+                            warn!(target: LOG_TARGET, "Problem with utxo scanner: {}",e);
+                        },
+                    }
+                },
                 _ = shutdown_signal.wait() => {
                     info!(
                         target: LOG_TARGET,

applications/minotari_console_wallet/src/grpc/wallet_grpc_server.rs

@@ -56,6 +56,8 @@ use minotari_app_grpc::tari_rpc::{
     GetConnectivityRequest,
     GetIdentityRequest,
     GetIdentityResponse,
+    GetStateRequest,
+    GetStateResponse,
     GetTransactionInfoRequest,
     GetTransactionInfoResponse,
     GetUnspentAmountsResponse,
@@ -122,7 +124,7 @@ use tokio::{
 use tonic::{Request, Response, Status};
 
 use crate::{
-    grpc::{convert_to_transaction_event, get_balance_debounced::GetBalanceDebounced, TransactionWrapper},
+    grpc::{convert_to_transaction_event, wallet_debouncer::WalletDebouncer, TransactionWrapper},
     notifier::{CANCELLED, CONFIRMATION, MINED, QUEUED, RECEIVED, SENT},
 };
 
@@ -146,23 +148,24 @@ async fn send_transaction_event(
 pub struct WalletGrpcServer {
     wallet: WalletSqlite,
     rules: ConsensusManager,
-    get_balance_debounced: Arc<Mutex<GetBalanceDebounced>>,
+    debouncer: Arc<Mutex<WalletDebouncer>>,
 }
 
 impl WalletGrpcServer {
     #[allow(dead_code)]
     pub fn new(wallet: WalletSqlite) -> Result<Self, ConsensusBuilderError> {
         let rules = ConsensusManager::builder(wallet.network.as_network()).build()?;
-        let get_balance = GetBalanceDebounced::new(
+        let debouncer = WalletDebouncer::new(
             wallet.output_manager_service.clone(),
             wallet.transaction_service.clone(),
             wallet.wallet_connectivity.clone(),
+            wallet.utxo_scanner_service.clone(),
             wallet.comms.shutdown_signal(),
         );
         Ok(Self {
             wallet,
             rules,
-            get_balance_debounced: Arc::new(Mutex::new(get_balance)),
+            debouncer: Arc::new(Mutex::new(debouncer)),
         })
     }
 
@@ -281,16 +284,56 @@ impl wallet_server::Wallet for WalletGrpcServer {
     async fn get_balance(&self, _request: Request<GetBalanceRequest>) -> Result<Response<GetBalanceResponse>, Status> {
         let start = std::time::Instant::now();
         let balance = {
-            let mut get_balance = self.get_balance_debounced.lock().await;
+            let mut get_balance = self.debouncer.lock().await;
             match get_balance.get_balance().await {
                 Ok(b) => b,
-                Err(e) => return Err(Status::not_found(format!("GetBalanceDebounced error! {}", e))),
+                Err(e) => return Err(Status::not_found(format!("WalletDebouncer error! {}", e))),
             }
         };
         trace!(target: LOG_TARGET, "'get_balance' completed in {:.2?}", start.elapsed());
         Ok(Response::new(balance))
     }
 
+    async fn get_state(&self, _request: Request<GetStateRequest>) -> Result<Response<GetStateResponse>, Status> {
+        let start = std::time::Instant::now();
+        let (balance, scanned_height) = {
+            let mut debouncer = self.debouncer.lock().await;
+            let balance = match debouncer.get_balance().await {
+                Ok(b) => b,
+                Err(e) => return Err(Status::not_found(format!("WalletDebouncer error! {}", e))),
+            };
+            let scanned_height = debouncer.get_scanned_height().await;
+            (Some(balance), scanned_height)
+        };
+
+        let status = self
+            .comms()
+            .connectivity()
+            .get_connectivity_status()
+            .await
+            .map_err(|err| Status::internal(err.to_string()))?;
+        let mut base_node_service = self.wallet.base_node_service.clone();
+
+        let network = Some(tari_rpc::NetworkStatusResponse {
+            status: tari_rpc::ConnectivityStatus::from(status) as i32,
+            avg_latency_ms: base_node_service
+                .get_base_node_latency()
+                .await
+                .map_err(|err| Status::internal(err.to_string()))?
+                .map(|d| u32::try_from(d.as_millis()).unwrap_or(u32::MAX))
+                .unwrap_or_default(),
+            num_node_connections: u32::try_from(status.num_connected_nodes())
+                .map_err(|_| Status::internal("Count not convert u64 to usize".to_string()))?,
+        });
+
+        trace!(target: LOG_TARGET, "'get_state' completed in {:.2?}", start.elapsed());
+        Ok(Response::new(GetStateResponse {
+            scanned_height,
+            balance,
+            network,
+        }))
+    }
+
     async fn get_unspent_amounts(
         &self,
         _: Request<tari_rpc::Empty>,