`LSPS1ServiceHandler`: Use `TimeProvider` when creating new orders

diff --git a/lightning-liquidity/src/lsps1/service.rs b/lightning-liquidity/src/lsps1/service.rs
index 52d9715..0b0adc0 100644
--- a/lightning-liquidity/src/lsps1/service.rs
+++ b/lightning-liquidity/src/lsps1/service.rs
@@ -30,6 +30,7 @@ use crate::lsps0::ser::{
 use crate::prelude::{new_hash_map, HashMap};
 use crate::sync::{Arc, Mutex, RwLock};
 use crate::utils;
+use crate::utils::time::TimeProvider;
 
 use lightning::ln::channelmanager::AChannelManager;
 use lightning::ln::msgs::{ErrorAction, LightningError};
@@ -50,26 +51,35 @@ pub struct LSPS1ServiceConfig {
 }
 
 /// The main object allowing to send and receive bLIP-51 / LSPS1 messages.
-pub struct LSPS1ServiceHandler<ES: EntropySource, CM: Deref + Clone, K: KVStore + Clone>
-where
+pub struct LSPS1ServiceHandler<
+	ES: EntropySource,
+	CM: Deref + Clone,
+	K: KVStore + Clone,
+	TP: Deref + Clone,
+> where
 	CM::Target: AChannelManager,
+	TP::Target: TimeProvider,
 {
 	entropy_source: ES,
 	_channel_manager: CM,
 	pending_messages: Arc<MessageQueue>,
 	pending_events: Arc<EventQueue<K>>,
 	per_peer_state: RwLock<HashMap<PublicKey, Mutex<PeerState>>>,
+	time_provider: TP,
 	config: LSPS1ServiceConfig,
 }
 
-impl<ES: EntropySource, CM: Deref + Clone, K: KVStore + Clone> LSPS1ServiceHandler<ES, CM, K>
+impl<ES: EntropySource, CM: Deref + Clone, K: KVStore + Clone, TP: Deref + Clone>
+	LSPS1ServiceHandler<ES, CM, K, TP>
 where
 	CM::Target: AChannelManager,
+	TP::Target: TimeProvider,
 {
 	/// Constructs a `LSPS1ServiceHandler`.
 	pub(crate) fn new(
 		entropy_source: ES, pending_messages: Arc<MessageQueue>,
-		pending_events: Arc<EventQueue<K>>, channel_manager: CM, config: LSPS1ServiceConfig,
+		pending_events: Arc<EventQueue<K>>, channel_manager: CM, time_provider: TP,
+		config: LSPS1ServiceConfig,
 	) -> Self {
 		Self {
 			entropy_source,
@@ -77,6 +87,7 @@ where
 			pending_messages,
 			pending_events,
 			per_peer_state: RwLock::new(new_hash_map()),
+			time_provider,
 			config,
 		}
 	}
@@ -181,7 +192,7 @@ where
 	/// [`LSPS1ServiceEvent::RequestForPaymentDetails`]: crate::lsps1::event::LSPS1ServiceEvent::RequestForPaymentDetails
 	pub fn send_payment_details(
 		&self, request_id: LSPSRequestId, counterparty_node_id: &PublicKey,
-		payment_details: LSPS1PaymentInfo, created_at: LSPSDateTime,
+		payment_details: LSPS1PaymentInfo,
 	) -> Result<(), APIError> {
 		let mut message_queue_notifier = self.pending_messages.notifier();
 
@@ -198,6 +209,9 @@ where
 				match request {
 					LSPS1Request::CreateOrder(params) => {
 						let order_id = self.generate_order_id();
+						let created_at = LSPSDateTime::new_from_duration_since_epoch(
+							self.time_provider.duration_since_epoch(),
+						);
 						let order = peer_state_lock.new_order(
 							order_id.clone(),
 							params.order,
@@ -321,10 +335,11 @@ where
 	}
 }
 
-impl<ES: EntropySource, CM: Deref + Clone, K: KVStore + Clone> LSPSProtocolMessageHandler
-	for LSPS1ServiceHandler<ES, CM, K>
+impl<ES: EntropySource, CM: Deref + Clone, K: KVStore + Clone, TP: Deref + Clone>
+	LSPSProtocolMessageHandler for LSPS1ServiceHandler<ES, CM, K, TP>
 where
 	CM::Target: AChannelManager,
+	TP::Target: TimeProvider,
 {
 	type ProtocolMessage = LSPS1Message;
 	const PROTOCOL_NUMBER: Option<u16> = Some(1);
diff --git a/lightning-liquidity/src/manager.rs b/lightning-liquidity/src/manager.rs
index db05d71..85c8ba3 100644
--- a/lightning-liquidity/src/manager.rs
+++ b/lightning-liquidity/src/manager.rs
@@ -283,7 +283,7 @@ pub struct LiquidityManager<
 	lsps0_client_handler: LSPS0ClientHandler<ES, K>,
 	lsps0_service_handler: Option<LSPS0ServiceHandler>,
 	#[cfg(lsps1_service)]
-	lsps1_service_handler: Option<LSPS1ServiceHandler<ES, CM, K>>,
+	lsps1_service_handler: Option<LSPS1ServiceHandler<ES, CM, K, TP>>,
 	lsps1_client_handler: Option<LSPS1ClientHandler<ES, K>>,
 	lsps2_service_handler: Option<LSPS2ServiceHandler<CM, K, T>>,
 	lsps2_client_handler: Option<LSPS2ClientHandler<ES, K>>,
@@ -429,7 +429,7 @@ where
 					kv_store.clone(),
 					node_signer,
 					lsps5_service_config.clone(),
-					time_provider,
+					time_provider.clone(),
 				))
 			} else {
 				None
@@ -452,7 +452,7 @@ where
 		#[cfg(lsps1_service)]
 		let lsps1_service_handler = service_config.as_ref().and_then(|config| {
 			if let Some(number) =
-				<LSPS1ServiceHandler<ES, CM, K> as LSPSProtocolMessageHandler>::PROTOCOL_NUMBER
+				<LSPS1ServiceHandler<ES, CM, K, TP> as LSPSProtocolMessageHandler>::PROTOCOL_NUMBER
 			{
 				supported_protocols.push(number);
 			}
@@ -462,6 +462,7 @@ where
 					Arc::clone(&pending_messages),
 					Arc::clone(&pending_events),
 					channel_manager.clone(),
+					time_provider,
 					config.clone(),
 				)
 			})
@@ -519,7 +520,7 @@ where
 
 	/// Returns a reference to the LSPS1 server-side handler.
 	#[cfg(lsps1_service)]
-	pub fn lsps1_service_handler(&self) -> Option<&LSPS1ServiceHandler<ES, CM, K>> {
+	pub fn lsps1_service_handler(&self) -> Option<&LSPS1ServiceHandler<ES, CM, K, TP>> {
 		self.lsps1_service_handler.as_ref()
 	}
 
@@ -1032,7 +1033,7 @@ where
 	#[cfg(lsps1_service)]
 	pub fn lsps1_service_handler(
 		&self,
-	) -> Option<&LSPS1ServiceHandler<ES, CM, KVStoreSyncWrapper<KS>>> {
+	) -> Option<&LSPS1ServiceHandler<ES, CM, KVStoreSyncWrapper<KS>, TP>> {
 		self.inner.lsps1_service_handler()
 	}
 
diff --git a/lightning-liquidity/tests/lsps1_integration_tests.rs b/lightning-liquidity/tests/lsps1_integration_tests.rs
index 5e842c6..0db96f5 100644
--- a/lightning-liquidity/tests/lsps1_integration_tests.rs
+++ b/lightning-liquidity/tests/lsps1_integration_tests.rs
@@ -7,7 +7,6 @@ use common::{get_lsps_message, LSPSNodes};
 
 use lightning::ln::peer_handler::CustomMessageHandler;
 use lightning_liquidity::events::LiquidityEvent;
-use lightning_liquidity::lsps0::ser::LSPSDateTime;
 use lightning_liquidity::lsps1::client::LSPS1ClientConfig;
 use lightning_liquidity::lsps1::event::LSPS1ClientEvent;
 use lightning_liquidity::lsps1::event::LSPS1ServiceEvent;
@@ -24,7 +23,6 @@ use lightning::ln::functional_test_utils::{
 };
 use lightning::util::test_utils::TestStore;
 
-use std::str::FromStr;
 use std::sync::Arc;
 
 use lightning::ln::functional_test_utils::{create_network, Node};
@@ -177,10 +175,8 @@ fn lsps1_happy_path() {
 	let onchain: LSPS1OnchainPaymentInfo =
 		serde_json::from_str(json_str).expect("Failed to parse JSON");
 	let payment_info = LSPS1PaymentInfo { bolt11: None, bolt12: None, onchain: Some(onchain) };
-	let _now = LSPSDateTime::from_str("2024-01-01T00:00:00Z").expect("Failed to parse date");
-
-	let _ = service_handler
-		.send_payment_details(_create_order_id.clone(), &client_node_id, payment_info.clone(), _now)
+	service_handler
+		.send_payment_details(_create_order_id.clone(), &client_node_id, payment_info.clone())
 		.unwrap();
 
 	let create_order_response = get_lsps_message!(service_node, client_node_id);