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Synchronize Cashu keyset counter increments #68

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Merged
benthecarman merged 1 commit into from
May 14, 2026
Merged

Synchronize Cashu keyset counter increments #68

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5 changes: 5 additions & 0 deletions orange-sdk/src/trusted_wallet/cashu/cashu_store.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ use cdk::wallet::{
};
use std::collections::hash_map::DefaultHasher;
use std::hash::{Hash, Hasher};
use tokio::sync::Mutex;

// Constants for organizing data in the KV store
const CASHU_PRIMARY_KEY: &str = "cashu_wallet";
Expand Down Expand Up @@ -114,6 +115,7 @@ impl From<DatabaseError> for cdk::cdk_database::Error {
/// A KV store-based implementation of the Cashu WalletDatabase trait
pub struct CashuKvDatabase {
store: Arc<dyn DynStore>,
keyset_counter_lock: Mutex<()>,
// In-memory caches for frequently accessed data
mints_cache: Arc<RwLock<HashMap<MintUrl, Option<MintInfo>>>>,
proofs_cache: Arc<RwLock<Vec<ProofInfo>>>,
Expand All @@ -123,6 +125,7 @@ impl Debug for CashuKvDatabase {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("CashuKvDatabase")
.field("store", &"<KVStore>")
.field("keyset_counter_lock", &self.keyset_counter_lock)
.field("mints_cache", &self.mints_cache)
.field("proofs_cache", &self.proofs_cache)
.finish()
Expand All @@ -146,6 +149,7 @@ impl CashuKvDatabase {
pub(crate) async fn new(store: Arc<dyn DynStore>) -> Result<Self, DatabaseError> {
let database = Self {
store,
keyset_counter_lock: Mutex::new(()),
mints_cache: Arc::new(RwLock::new(HashMap::new())),
proofs_cache: Arc::new(RwLock::new(Vec::new())),
};
Expand Down Expand Up @@ -833,6 +837,7 @@ impl WalletDatabase<cdk::cdk_database::Error> for CashuKvDatabase {
async fn increment_keyset_counter(
&self, keyset_id: &Id, count: u32,
) -> Result<u32, cdk::cdk_database::Error> {
let _lock = self.keyset_counter_lock.lock().await;
let key = keyset_id.to_string();

// Read current counter
Expand Down