feat: add wrapped tokens contract for cross-chain assets

Cargo.toml

@@ -100,6 +100,8 @@ members = [
     "contracts/royalty_distribution",
 
   "contracts/query_engine",
+  "contracts/wrapped_tokens",
+  "contracts/reward_distribution",
 ]
     "contracts/collateral_lending",
 ]  

contracts/reward_distribution/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "reward_distribution"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+soroban-sdk = { workspace = true }
+
+[dev-dependencies]
+soroban-sdk = { workspace = true, features = ["testutils"] }
+
+[features]
+testutils = ["soroban-sdk/testutils"]

contracts/reward_distribution/src/events.rs

@@ -0,0 +1,51 @@
+#![no_std]
+use soroban_sdk::{symbol_short, Address, Env};
+use crate::types::DistributionKind;
+
+pub fn emit_initialized(env: &Env, admin: &Address) {
+    env.events().publish((symbol_short!("init"),), (admin,));
+}
+
+pub fn emit_dist_created(
+    env: &Env,
+    id: u32,
+    kind: DistributionKind,
+    token: &Address,
+    total: i128,
+    expiry: u64,
+    creator: &Address,
+) {
+    env.events().publish(
+        (symbol_short!("dist_new"),),
+        (id, kind as u32, token, total, expiry, creator),
+    );
+}
+
+pub fn emit_claimed(env: &Env, dist_id: u32, claimer: &Address, amount: i128) {
+    env.events().publish(
+        (symbol_short!("claimed"),),
+        (dist_id, claimer, amount),
+    );
+}
+
+pub fn emit_batch_created(env: &Env, ids: &soroban_sdk::Vec<u32>) {
+    env.events().publish((symbol_short!("batch_new"),), (ids,));
+}
+
+pub fn emit_expired(env: &Env, dist_id: u32) {
+    env.events().publish((symbol_short!("expired"),), (dist_id,));
+}
+
+pub fn emit_recovered(env: &Env, dist_id: u32, recipient: &Address, amount: i128) {
+    env.events().publish(
+        (symbol_short!("recovered"),),
+        (dist_id, recipient, amount),
+    );
+}
+
+pub fn emit_cancelled(env: &Env, dist_id: u32, recovered: i128) {
+    env.events().publish(
+        (symbol_short!("cancelled"),),
+        (dist_id, recovered),
+    );
+}