From 6f12a4a2b041dd0f4dc7b6c6a44a0e0ce26229a1 Mon Sep 17 00:00:00 2001
From: Restioson <restiosondev@gmail.com>
Date: Mon, 28 Aug 2023 16:48:56 +0200
Subject: [PATCH] feat: model invoice expiry time

---
 .../features/wallet/domain/wallet_history.dart |  7 +++++++
 .../features/wallet/wallet_history_item.dart   |  4 ++++
 mobile/native/src/api.rs                       |  1 +
 mobile/native/src/ln_dlc/mod.rs                | 18 ++++++++++++++----
 4 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/mobile/lib/features/wallet/domain/wallet_history.dart b/mobile/lib/features/wallet/domain/wallet_history.dart
index de9ce456a..49edb041e 100644
--- a/mobile/lib/features/wallet/domain/wallet_history.dart
+++ b/mobile/lib/features/wallet/domain/wallet_history.dart
@@ -80,6 +80,10 @@ abstract class WalletHistoryItemData {
     rust.WalletHistoryItemType_Lightning type =
         item.walletType as rust.WalletHistoryItemType_Lightning;
 
+    DateTime? expiry = type.expiryTimestamp != null
+        ? DateTime.fromMillisecondsSinceEpoch(type.expiryTimestamp! * 1000)
+        : null;
+
     return LightningPaymentData(
         flow: flow,
         amount: amount,
@@ -88,6 +92,7 @@ abstract class WalletHistoryItemData {
         preimage: type.paymentPreimage,
         description: type.description,
         paymentHash: type.paymentHash,
+        expiry: expiry,
         invoice: type.invoice);
   }
 }
@@ -97,6 +102,7 @@ class LightningPaymentData extends WalletHistoryItemData {
   final String? preimage;
   final String description;
   final String? invoice;
+  final DateTime? expiry;
 
   LightningPaymentData(
       {required super.flow,
@@ -106,6 +112,7 @@ class LightningPaymentData extends WalletHistoryItemData {
       required this.preimage,
       required this.description,
       required this.invoice,
+      required this.expiry,
       required this.paymentHash});
 
   @override
diff --git a/mobile/lib/features/wallet/wallet_history_item.dart b/mobile/lib/features/wallet/wallet_history_item.dart
index 306ab457a..03f3387cb 100644
--- a/mobile/lib/features/wallet/wallet_history_item.dart
+++ b/mobile/lib/features/wallet/wallet_history_item.dart
@@ -167,6 +167,10 @@ class LightningPaymentHistoryItem extends WalletHistoryItem {
   @override
   List<Widget> getDetails() {
     return [
+      Visibility(
+        visible: data.expiry != null,
+        child: HistoryDetail(label: "Expiry time", value: WalletHistoryItem.dateFormat.format(data.expiry ?? DateTime.utc(0))),
+      ),
       HistoryDetail(label: "Invoice description", value: data.description),
       Visibility(
         visible: data.invoice != null,
diff --git a/mobile/native/src/api.rs b/mobile/native/src/api.rs
index 65be218b1..788d38151 100644
--- a/mobile/native/src/api.rs
+++ b/mobile/native/src/api.rs
@@ -85,6 +85,7 @@ pub enum WalletHistoryItemType {
         description: String,
         payment_preimage: Option<String>,
         invoice: Option<String>,
+        expiry_timestamp: Option<u64>,
     },
     Trade {
         order_id: String,
diff --git a/mobile/native/src/ln_dlc/mod.rs b/mobile/native/src/ln_dlc/mod.rs
index cf21f3c39..4435a4598 100644
--- a/mobile/native/src/ln_dlc/mod.rs
+++ b/mobile/native/src/ln_dlc/mod.rs
@@ -347,18 +347,23 @@ fn keep_wallet_balance_and_history_up_to_date(node: &Node) -> Result<()> {
             None => return None,
         };
 
-        let expired = match details.invoice.as_deref().map(Invoice::from_str) {
+        let decoded_invoice = match details.invoice.as_deref().map(Invoice::from_str) {
             Some(Ok(inv)) => {
                 tracing::info!(?inv, "Decoded invoice");
-                inv.is_expired()
+                Some(inv)
             }
             Some(Err(err)) => {
                 tracing::warn!(%err, "Failed to deserialize invoice");
-                false
+                None
             }
-            None => false,
+            None => None,
         };
 
+        let expired = decoded_invoice
+            .as_ref()
+            .map(|inv| inv.is_expired())
+            .unwrap_or(false);
+
         let status = match details.status {
             HTLCStatus::Pending if expired => api::Status::Expired,
             HTLCStatus::Pending => api::Status::Pending,
@@ -391,11 +396,16 @@ fn keep_wallet_balance_and_history_up_to_date(node: &Node) -> Result<()> {
                 payment_hash,
             }
         } else {
+            let expiry_timestamp = decoded_invoice
+                .and_then(|inv| inv.timestamp().checked_add(inv.expiry_time()))
+                .map(|time| OffsetDateTime::from(time).unix_timestamp() as u64);
+
             api::WalletHistoryItemType::Lightning {
                 payment_hash,
                 description: details.description.clone(),
                 payment_preimage: details.preimage.clone(),
                 invoice: details.invoice.clone(),
+                expiry_timestamp,
             }
         };