From e252ea2fd34def582f09fedf973a4457b3129081 Mon Sep 17 00:00:00 2001
From: Sosthene <contact@sosthene.net>
Date: Sat, 23 Aug 2025 15:43:13 +0200
Subject: [PATCH] Add scan_blocks api

---
 src/api.rs | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/src/api.rs b/src/api.rs
index fd90e6d..fe6d023 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -6,7 +6,7 @@ use std::ops::Index;
 use std::str::FromStr;
 use std::string::FromUtf8Error;
 use std::sync::{Mutex, MutexGuard, OnceLock, PoisonError};
-use std::time::{Duration, Instant};
+use web_time::{Duration, Instant};
 use std::u32;
 
 use rand::{thread_rng, Fill, Rng, RngCore};
@@ -15,6 +15,7 @@ use sdk_common::aes_gcm::aes::cipher::ArrayLength;
 use sdk_common::aes_gcm::Nonce;
 use sdk_common::hash::AnkPcdHash;
 use sdk_common::log::{self, debug, info, warn};
+use sdk_common::backend_blindbit_wasm::wasm_bindgen_futures;
 
 use anyhow::{anyhow, Context};
 use anyhow::Error as AnyhowError;
@@ -68,7 +69,7 @@ use sdk_common::pcd::{
     DataType, FileBlob, Member, Pcd, PcdCommitments, RoleDefinition, Roles, ValidationRule, PCD_VERSION, PcdSerializable
 };
 use sdk_common::prd::{AnkPrdHash, Prd, PrdType};
-use sdk_common::silentpayments::{create_transaction as internal_create_transaction, sign_transaction as internal_sign_tx, TsUnsignedTransaction};
+use sdk_common::silentpayments::{create_transaction as internal_create_transaction, sign_transaction as internal_sign_tx, SpWallet, TsUnsignedTransaction};
 use sdk_common::sp_client::{FeeRate, OutputSpendStatus, OwnedOutput, Recipient, RecipientAddress, SilentPaymentUnsignedTransaction, SpClient, SpendKey};
 use sdk_common::secrets::SecretsStore;
 
@@ -293,6 +294,19 @@ pub fn create_new_device(birthday: u32, network_str: String) -> ApiResult<String
     Ok(our_address)
 }
 
+#[wasm_bindgen]
+pub async fn scan_blocks(tip_height: u32, blindbit_url: String) -> ApiResult<()> {
+    let local_device = lock_local_device()?;
+
+    let sp_wallet = local_device.get_sp_wallet();
+
+    let last_scan = sp_wallet.get_last_scan();
+    let n_blocks_to_scan = tip_height - last_scan;
+    crate::wallet::scan_blocks(n_blocks_to_scan, &blindbit_url, sp_wallet, tip_height, last_scan).await?;
+
+    Ok(())
+}
+
 #[wasm_bindgen]
 pub fn is_paired() -> ApiResult<bool> {
     let local_device = lock_local_device()?;
@@ -456,6 +470,7 @@ pub fn get_opreturn(transaction: String) -> ApiResult<String> {
 #[wasm_bindgen]
 pub fn process_commit_new_state(mut process: Process, state_id: String, new_tip: String) -> ApiResult<Process> {
     let state_id_array: [u8; 32] = Vec::from_hex(&state_id)?.try_into().unwrap();
+    let new_tip = OutPoint::from_str(&new_tip)?;
     let new_state: ProcessState;
     if let Ok(commited_state) = process.get_state_for_id(&state_id_array) {
         new_state = commited_state.clone();
@@ -469,7 +484,7 @@ pub fn process_commit_new_state(mut process: Process, state_id: String, new_tip:
 
     process.remove_all_concurrent_states()?;
     process.insert_concurrent_state(new_state)?;
-    process.update_states_tip(OutPoint::from_str(&new_tip)?)?;
+    process.update_states_tip(new_tip)?;
     Ok(process)
 }