Merge pull request #357 from zachyo/fix-253-contract-implement-asset-transfer-between-branches

Implement asset transfer between branches

Author: truthixify

.marscode/deviceInfo.json

@@ -0,0 +1,3 @@
+{
+  "deviceId": "7f91adcb12118e2c9981ba3eb11750e017f0b03a54e70479c08f7b5a3e2b3d76"
+}

contracts/assetsup/src/asset.rs

@@ -15,7 +15,7 @@ pub struct Asset {
     pub name: String,
     pub asset_type: AssetType,
     pub category: String,
-    pub branch_id: u64,
+    pub branch_id: BytesN<32>,
     pub department_id: u64,
     pub status: AssetStatus,
     pub purchase_date: u64,

contracts/assetsup/src/audit.rs

@@ -0,0 +1,51 @@
+use soroban_sdk::{Address, BytesN, Env, String, Vec, contracttype};
+
+use crate::types::ActionType;
+
+#[contracttype]
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub enum DataKey {
+    AuditLog(BytesN<32>), // Key for asset-specific audit log
+}
+
+#[contracttype]
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub struct AuditEntry {
+    pub actor: Address,
+    pub action: ActionType,
+    pub timestamp: u64,
+    pub note: String,
+}
+
+pub fn log_action(
+    env: &Env,
+    asset_id: &BytesN<32>,
+    actor: Address,
+    action: ActionType,
+    note: String,
+) {
+    let key = DataKey::AuditLog(asset_id.clone());
+    let mut log: Vec<AuditEntry> = env
+        .storage()
+        .persistent()
+        .get(&key)
+        .unwrap_or_else(|| Vec::new(env));
+
+    let entry = AuditEntry {
+        actor,
+        action,
+        timestamp: env.ledger().timestamp(),
+        note,
+    };
+
+    log.push_back(entry);
+    env.storage().persistent().set(&key, &log);
+}
+
+pub fn get_asset_log(env: &Env, asset_id: &BytesN<32>) -> Vec<AuditEntry> {
+    let key = DataKey::AuditLog(asset_id.clone());
+    env.storage()
+        .persistent()
+        .get(&key)
+        .unwrap_or_else(|| Vec::new(env))
+}