payfee (#118)

* payfee

* reset spec version

bin/node/cli/res/jupiter-westend-2000-genesis

@@ -1 +1 @@
-0x000000000000000000000000000000000000000000000000000000000000000000b32a2c0f7322d2d841898ea2c89cca0866df8f200dbef73ac0a57b328fbceb0103170a2e7597b7b7e3d84c05391d139a62b157e78786d8c082f29dcf4c11131400
+0x0000000000000000000000000000000000000000000000000000000000000000007115d44528b328fad293c6e1e0c32e45c7586083c8890f98591d9a17f0633a7a03170a2e7597b7b7e3d84c05391d139a62b157e78786d8c082f29dcf4c11131400

runtime/common/Cargo.toml

@@ -32,6 +32,7 @@ pallet-treasury = { version = "3.0.0", git = "https://github.com/paritytech/subs
 pallet-bounties = { version = "3.0.0", git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.8", default-features = false }
 pallet-tips = { version = "3.0.0", git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.8", default-features = false }
 pallet-utility = { version = "3.0.0", git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.8", default-features = false }
+pallet-sudo = { version = "3.0.0", git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.8", default-features = false }
 pallet-collator-selection = { version = "3.0.0", git = "https://github.com/patractlabs/cumulus", branch = "patract-sandbox-xcmp", default-features = false }
 
 jupiter-primitives = { path = "../../primitives", default-features = false }
@@ -63,6 +64,7 @@ std = [
   "pallet-bounties/std",
   "pallet-tips/std",
   "pallet-utility/std",
+  "pallet-sudo/std",
   "pallet-collator-selection/std",
 
   "jupiter-primitives/std",

runtime/common/src/impls.rs

@@ -30,6 +30,25 @@ where
     }
 }
 
+pub struct ToRoot<R>(sp_std::marker::PhantomData<R>);
+impl<R> OnUnbalanced<NegativeImbalance<R>> for ToRoot<R>
+where
+    R: pallet_balances::Config + pallet_sudo::Config,
+    <R as frame_system::Config>::AccountId: From<AccountId>,
+    <R as frame_system::Config>::AccountId: Into<AccountId>,
+    <R as frame_system::Config>::Event: From<pallet_balances::Event<R>>,
+{
+    fn on_nonzero_unbalanced(amount: NegativeImbalance<R>) {
+        let numeric_amount = amount.peek();
+        let author = <pallet_sudo::Pallet<R>>::key();
+        <pallet_balances::Pallet<R>>::resolve_creating(&author, amount);
+        <frame_system::Pallet<R>>::deposit_event(pallet_balances::Event::Deposit(
+            author,
+            numeric_amount,
+        ));
+    }
+}
+
 /// Logic for the author to get a portion of fees.
 pub struct ToStakingPot<R>(sp_std::marker::PhantomData<R>);
 impl<R> OnUnbalanced<NegativeImbalance<R>> for ToStakingPot<R>

runtime/jupiter/src/lib.rs

@@ -88,7 +88,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     spec_name: create_runtime_str!("jupiter-westend"),
     impl_name: create_runtime_str!("patract-jupiter-westend"),
     authoring_version: 1,
-    spec_version: 2,
+    spec_version: 1,
     impl_version: 1,
     apis: RUNTIME_API_VERSIONS,
     transaction_version: 1,
@@ -165,7 +165,8 @@ impl pallet_balances::Config for Runtime {
 }
 
 impl pallet_transaction_payment::Config for Runtime {
-    type OnChargeTransaction = pallet_transaction_payment::CurrencyAdapter<Balances, ()>;
+    type OnChargeTransaction =
+        pallet_transaction_payment::CurrencyAdapter<Balances, impls::ToRoot<Self>>;
     type TransactionByteFee = TransactionByteFee;
     type WeightToFee = JupiterWeight2Fee;
     type FeeMultiplierUpdate = impls::SlowAdjustingFeeUpdate<Self>;
@@ -352,7 +353,13 @@ impl Config for XcmConfig {
     type LocationInverter = LocationInverter<Ancestry>;
     type Barrier = ();
     type Weigher = FixedWeightBounds<UnitWeightCost, Call>;
-    type Trader = UsingComponents<IdentityFee<Balance>, WestendLocation, AccountId, Balances, ()>;
+    type Trader = UsingComponents<
+        IdentityFee<Balance>,
+        WestendLocation,
+        AccountId,
+        Balances,
+        impls::ToRoot<Runtime>,
+    >;
     type ResponseHandler = (); // Don't handle responses for now.
 }