From 7ae0e44f14189791bc9e8122b307d84841a4d3e1 Mon Sep 17 00:00:00 2001
From: rustdev <placex.com@gmail.com>
Date: Wed, 24 Jul 2024 22:32:32 +0100
Subject: [PATCH] new burn_from_caller tx for assets pallet to allow burn asset
 on caller

add logic to validate that for native asset id should stay alive according to caller preference
---
 code/parachain/frame/assets/src/lib.rs        | 35 +++++++++++++++++++
 .../runtime/composable/src/version.rs         |  2 +-
 code/parachain/runtime/picasso/src/version.rs |  2 +-
 3 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/code/parachain/frame/assets/src/lib.rs b/code/parachain/frame/assets/src/lib.rs
index 4e82a81085..fff5cc3b39 100644
--- a/code/parachain/frame/assets/src/lib.rs
+++ b/code/parachain/frame/assets/src/lib.rs
@@ -376,6 +376,41 @@ pub mod pallet {
 			)?;
 			Ok(())
 		}
+
+		#[pallet::call_index(12)]
+		#[pallet::weight(T::WeightInfo::burn_from())]
+		pub fn burn_from_caller(
+			origin: OriginFor<T>,
+			asset_id: T::AssetId,
+			#[pallet::compact] amount: T::Balance,
+			keep_alive: bool,
+		) -> DispatchResultWithPostInfo {
+			let who = ensure_signed(origin)?;
+			let is_native = T::NativeAssetId::get() == asset_id;
+			if keep_alive && is_native{
+				let keep_alive =
+				if keep_alive { Preservation::Preserve } else { Preservation::Expendable };
+				let reducible_balance = <Self as Inspect<T::AccountId>>::reducible_balance(
+					asset_id,
+					&who,
+					keep_alive,
+					Fortitude::Polite,
+				);
+				//want to keep alive account.
+				if amount > reducible_balance {
+					return Err(Error::<T>::InvalidCurrency.into());
+				}
+			}
+
+			<Self as Mutate<T::AccountId>>::burn_from(
+				asset_id,
+				&who,
+				amount,
+				Precision::BestEffort,
+				Fortitude::Polite,
+			)?;
+			Ok(().into())
+		}
 	}
 
 	pub(crate) fn valid_asset_id<T: Config>(asset_id: T::AssetId) -> Option<T::AssetId> {
diff --git a/code/parachain/runtime/composable/src/version.rs b/code/parachain/runtime/composable/src/version.rs
index 46607fd491..ea6c556b75 100644
--- a/code/parachain/runtime/composable/src/version.rs
+++ b/code/parachain/runtime/composable/src/version.rs
@@ -13,7 +13,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	// The version of the runtime specification. A full node will not attempt to use its native
 	//   runtime in substitute for the on-chain Wasm runtime unless all of `spec_name`,
 	//   `spec_version`, and `authoring_version` are the same between Wasm and native.
-	spec_version: 10045,
+	spec_version: 10046,
 	impl_version: 0,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 2,
diff --git a/code/parachain/runtime/picasso/src/version.rs b/code/parachain/runtime/picasso/src/version.rs
index b858287e04..f376c38a16 100644
--- a/code/parachain/runtime/picasso/src/version.rs
+++ b/code/parachain/runtime/picasso/src/version.rs
@@ -16,7 +16,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	// The version of the runtime specification. A full node will not attempt to use its native
 	//   runtime in substitute for the on-chain Wasm runtime unless all of `spec_name`,
 	//   `spec_version`, and `authoring_version` are the same between Wasm and native.
-	spec_version: 10045,
+	spec_version: 10046,
 	impl_version: 0,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 1,