[PoC] First iteraration of the Dynamic Allocation Pool (DAP): burns -> DAP buffer

Cargo.toml

@@ -355,6 +355,8 @@ members = [
 	"substrate/frame/contracts/uapi",
 	"substrate/frame/conviction-voting",
 	"substrate/frame/core-fellowship",
+	"substrate/frame/dap",
+	"substrate/frame/dap-satellite",
 	"substrate/frame/delegated-staking",
 	"substrate/frame/democracy",
 	"substrate/frame/derivatives",
@@ -984,6 +986,8 @@ pallet-contracts-proc-macro = { path = "substrate/frame/contracts/proc-macro", d
 pallet-contracts-uapi = { path = "substrate/frame/contracts/uapi", default-features = false }
 pallet-conviction-voting = { path = "substrate/frame/conviction-voting", default-features = false }
 pallet-core-fellowship = { path = "substrate/frame/core-fellowship", default-features = false }
+pallet-dap = { path = "substrate/frame/dap", default-features = false }
+pallet-dap-satellite = { path = "substrate/frame/dap-satellite", default-features = false }
 pallet-default-config-example = { path = "substrate/frame/examples/default-config", default-features = false }
 pallet-delegated-staking = { path = "substrate/frame/delegated-staking", default-features = false }
 pallet-democracy = { path = "substrate/frame/democracy", default-features = false }

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs

@@ -227,6 +227,7 @@ impl pallet_balances::Config for Runtime {
 	type FreezeIdentifier = RuntimeFreezeReason;
 	type MaxFreezes = ConstU32<50>;
 	type DoneSlashHandler = ();
+	type BurnDestination = pallet_balances::DirectBurn<Runtime>;
 }
 
 parameter_types! {

cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml

@@ -120,6 +120,7 @@ cumulus-primitives-aura = { workspace = true }
 cumulus-primitives-core = { workspace = true }
 cumulus-primitives-utility = { workspace = true }
 pallet-collator-selection = { workspace = true }
+pallet-dap = { workspace = true }
 pallet-message-queue = { workspace = true }
 parachain-info = { workspace = true }
 parachains-common = { workspace = true }
@@ -173,6 +174,7 @@ runtime-benchmarks = [
 	"pallet-balances/runtime-benchmarks",
 	"pallet-collator-selection/runtime-benchmarks",
 	"pallet-conviction-voting/runtime-benchmarks",
+	"pallet-dap/runtime-benchmarks",
 	"pallet-delegated-staking/runtime-benchmarks",
 	"pallet-election-provider-multi-block/runtime-benchmarks",
 	"pallet-fast-unstake/runtime-benchmarks",
@@ -246,6 +248,7 @@ try-runtime = [
 	"pallet-balances/try-runtime",
 	"pallet-collator-selection/try-runtime",
 	"pallet-conviction-voting/try-runtime",
+	"pallet-dap/try-runtime",
 	"pallet-delegated-staking/try-runtime",
 	"pallet-election-provider-multi-block/try-runtime",
 	"pallet-fast-unstake/try-runtime",
@@ -326,6 +329,7 @@ std = [
 	"pallet-balances/std",
 	"pallet-collator-selection/std",
 	"pallet-conviction-voting/std",
+	"pallet-dap/std",
 	"pallet-delegated-staking/std",
 	"pallet-election-provider-multi-block/std",
 	"pallet-fast-unstake/std",

cumulus/parachains/runtimes/assets/asset-hub-westend/src/governance/mod.rs

@@ -131,7 +131,7 @@ impl pallet_treasury::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type SpendPeriod = SpendPeriod;
 	type Burn = Burn;
-	type BurnDestination = ();
+	type BurnDestination = pallet_dap::BurnToDap<Runtime, Balances>;
 	type MaxApprovals = MaxApprovals;
 	type WeightInfo = weights::pallet_treasury::WeightInfo<Runtime>;
 	type SpendFunds = ();

cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs

@@ -245,6 +245,7 @@ impl pallet_balances::Config for Runtime {
 	type FreezeIdentifier = RuntimeFreezeReason;
 	type MaxFreezes = frame_support::traits::VariantCountOf<RuntimeFreezeReason>;
 	type DoneSlashHandler = ();
+	type BurnDestination = pallet_dap::ReturnToDap<Runtime>;
 }
 
 parameter_types! {
@@ -1398,6 +1399,9 @@ construct_runtime!(
 		Treasury: pallet_treasury = 94,
 		AssetRate: pallet_asset_rate = 95,
 
+		// Dynamic Allocation Pool / Issuance Buffer
+		Dap: pallet_dap = 100,
+
 		// TODO: the pallet instance should be removed once all pools have migrated
 		// to the new account IDs.
 		AssetConversionMigration: pallet_asset_conversion_ops = 200,

cumulus/parachains/runtimes/assets/asset-hub-westend/src/staking.rs

@@ -278,7 +278,7 @@ impl pallet_staking_async::Config for Runtime {
 	type RuntimeHoldReason = RuntimeHoldReason;
 	type CurrencyToVote = sp_staking::currency_to_vote::SaturatingCurrencyToVote;
 	type RewardRemainder = ();
-	type Slash = ();
+	type Slash = pallet_dap::SlashToDap<Runtime>;
 	type Reward = ();
 	type SessionsPerEra = SessionsPerEra;
 	type BondingDuration = BondingDuration;
@@ -311,6 +311,10 @@ impl pallet_staking_async_rc_client::Config for Runtime {
 	type ValidatorSetExportSession = ConstU32<4>;
 }
 
+impl pallet_dap::Config for Runtime {
+	type Currency = Balances;
+}
+
 #[derive(Encode, Decode)]
 // Call indices taken from westend-next runtime.
 pub enum RelayChainRuntimePallets {

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs

@@ -364,6 +364,7 @@ impl pallet_balances::Config for Runtime {
 	type FreezeIdentifier = ();
 	type MaxFreezes = ConstU32<0>;
 	type DoneSlashHandler = ();
+	type BurnDestination = pallet_balances::DirectBurn<Runtime>;
 }
 
 parameter_types! {

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/Cargo.toml

@@ -31,6 +31,7 @@ frame-try-runtime = { optional = true, workspace = true }
 pallet-aura = { workspace = true }
 pallet-authorship = { workspace = true }
 pallet-balances = { workspace = true }
+pallet-dap-satellite = { workspace = true }
 pallet-message-queue = { workspace = true }
 pallet-multisig = { workspace = true }
 pallet-session = { workspace = true }
@@ -174,6 +175,7 @@ std = [
 	"pallet-bridge-parachains/std",
 	"pallet-bridge-relayers/std",
 	"pallet-collator-selection/std",
+	"pallet-dap-satellite/std",
 	"pallet-message-queue/std",
 	"pallet-multisig/std",
 	"pallet-session/std",
@@ -254,6 +256,7 @@ runtime-benchmarks = [
 	"pallet-bridge-parachains/runtime-benchmarks",
 	"pallet-bridge-relayers/runtime-benchmarks",
 	"pallet-collator-selection/runtime-benchmarks",
+	"pallet-dap-satellite/runtime-benchmarks",
 	"pallet-message-queue/runtime-benchmarks",
 	"pallet-multisig/runtime-benchmarks",
 	"pallet-session/runtime-benchmarks",
@@ -304,6 +307,7 @@ try-runtime = [
 	"pallet-bridge-parachains/try-runtime",
 	"pallet-bridge-relayers/try-runtime",
 	"pallet-collator-selection/try-runtime",
+	"pallet-dap-satellite/try-runtime",
 	"pallet-message-queue/try-runtime",
 	"pallet-multisig/try-runtime",
 	"pallet-session/try-runtime",

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/lib.rs

@@ -354,17 +354,24 @@ impl pallet_balances::Config for Runtime {
 	type FreezeIdentifier = ();
 	type MaxFreezes = ConstU32<0>;
 	type DoneSlashHandler = ();
+	type BurnDestination = pallet_dap_satellite::AccumulateInSatellite<Runtime>;
 }
 
 parameter_types! {
 	/// Relay Chain `TransactionByteFee` / 10
 	pub const TransactionByteFee: Balance = MILLICENTS;
+	/// Percentage of fees to send to DAP satellite (0 = all to staking pot, 100 = all to DAP).
+	pub const DapSatelliteFeePercent: u32 = 0;
 }
 
+/// Fee handler that splits fees between DAP satellite and staking pot.
+type DealWithFeesSatellite =
+	pallet_dap_satellite::DealWithFeesSplit<Runtime, DapSatelliteFeePercent, DealWithFees<Runtime>>;
+
 impl pallet_transaction_payment::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type OnChargeTransaction =
-		pallet_transaction_payment::FungibleAdapter<Balances, DealWithFees<Runtime>>;
+		pallet_transaction_payment::FungibleAdapter<Balances, DealWithFeesSatellite>;
 	type OperationalFeeMultiplier = ConstU8<5>;
 	type WeightToFee = WeightToFee;
 	type LengthToFee = ConstantMultiplier<Balance, TransactionByteFee>;
@@ -552,6 +559,10 @@ impl pallet_utility::Config for Runtime {
 	type WeightInfo = weights::pallet_utility::WeightInfo<Runtime>;
 }
 
+impl pallet_dap_satellite::Config for Runtime {
+	type Currency = Balances;
+}
+
 // Create the runtime by composing the FRAME pallets that were previously configured.
 construct_runtime!(
 	pub enum Runtime
@@ -583,6 +594,9 @@ construct_runtime!(
 		Utility: pallet_utility = 40,
 		Multisig: pallet_multisig = 36,
 
+		// DAP Satellite - collects funds for eventual transfer to DAP on AssetHub.
+		DapSatellite: pallet_dap_satellite = 60,
+
 		// Bridging stuff.
 		BridgeRelayers: pallet_bridge_relayers = 41,
 		BridgeRococoGrandpa: pallet_bridge_grandpa::<Instance1> = 42,

cumulus/parachains/runtimes/collectives/collectives-westend/Cargo.toml

@@ -34,6 +34,7 @@ pallet-authorship = { workspace = true }
 pallet-balances = { workspace = true }
 pallet-collective = { workspace = true }
 pallet-core-fellowship = { workspace = true }
+pallet-dap-satellite = { workspace = true }
 pallet-multisig = { workspace = true }
 pallet-preimage = { workspace = true }
 pallet-proxy = { workspace = true }
@@ -120,6 +121,7 @@ runtime-benchmarks = [
 	"pallet-collective-content/runtime-benchmarks",
 	"pallet-collective/runtime-benchmarks",
 	"pallet-core-fellowship/runtime-benchmarks",
+	"pallet-dap-satellite/runtime-benchmarks",
 	"pallet-message-queue/runtime-benchmarks",
 	"pallet-multisig/runtime-benchmarks",
 	"pallet-preimage/runtime-benchmarks",
@@ -165,6 +167,7 @@ try-runtime = [
 	"pallet-collective-content/try-runtime",
 	"pallet-collective/try-runtime",
 	"pallet-core-fellowship/try-runtime",
+	"pallet-dap-satellite/try-runtime",
 	"pallet-message-queue/try-runtime",
 	"pallet-multisig/try-runtime",
 	"pallet-preimage/try-runtime",
@@ -213,6 +216,7 @@ std = [
 	"pallet-collective-content/std",
 	"pallet-collective/std",
 	"pallet-core-fellowship/std",
+	"pallet-dap-satellite/std",
 	"pallet-message-queue/std",
 	"pallet-multisig/std",
 	"pallet-preimage/std",

cumulus/parachains/runtimes/collectives/collectives-westend/src/lib.rs

@@ -234,17 +234,24 @@ impl pallet_balances::Config for Runtime {
 	type FreezeIdentifier = ();
 	type MaxFreezes = ConstU32<0>;
 	type DoneSlashHandler = ();
+	type BurnDestination = pallet_dap_satellite::AccumulateInSatellite<Runtime>;
 }
 
 parameter_types! {
 	/// Relay Chain `TransactionByteFee` / 10
 	pub const TransactionByteFee: Balance = MILLICENTS;
+	/// Percentage of fees to send to DAP satellite (0 = all to staking pot, 100 = all to DAP).
+	pub const DapSatelliteFeePercent: u32 = 0;
 }
 
+/// Fee handler that splits fees between DAP satellite and staking pot.
+type DealWithFeesSatellite =
+	pallet_dap_satellite::DealWithFeesSplit<Runtime, DapSatelliteFeePercent, DealWithFees<Runtime>>;
+
 impl pallet_transaction_payment::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type OnChargeTransaction =
-		pallet_transaction_payment::FungibleAdapter<Balances, DealWithFees<Runtime>>;
+		pallet_transaction_payment::FungibleAdapter<Balances, DealWithFeesSatellite>;
 	type WeightToFee = WeightToFee;
 	type LengthToFee = ConstantMultiplier<Balance, TransactionByteFee>;
 	type FeeMultiplierUpdate = SlowAdjustingFeeUpdate<Self>;
@@ -748,6 +755,9 @@ construct_runtime!(
 
 		StateTrieMigration: pallet_state_trie_migration = 80,
 
+		// DAP Satellite - collects funds for eventual transfer to DAP on AssetHub.
+		DapSatellite: pallet_dap_satellite = 85,
+
 		// The Secretary Collective
 		// pub type SecretaryCollectiveInstance = pallet_ranked_collective::instance3;
 		SecretaryCollective: pallet_ranked_collective::<Instance3> = 90,
@@ -1383,6 +1393,10 @@ impl pallet_state_trie_migration::Config for Runtime {
 	type MaxKeyLen = MigrationMaxKeyLen;
 }
 
+impl pallet_dap_satellite::Config for Runtime {
+	type Currency = Balances;
+}
+
 frame_support::ord_parameter_types! {
 	pub const MigController: AccountId = AccountId::from(hex_literal::hex!("8458ed39dc4b6f6c7255f7bc42be50c2967db126357c999d44e12ca7ac80dc52"));
 	pub const RootMigController: AccountId = AccountId::from(hex_literal::hex!("8458ed39dc4b6f6c7255f7bc42be50c2967db126357c999d44e12ca7ac80dc52"));

cumulus/parachains/runtimes/coretime/coretime-rococo/src/lib.rs

@@ -267,6 +267,7 @@ impl pallet_balances::Config for Runtime {
 	type FreezeIdentifier = ();
 	type MaxFreezes = ConstU32<0>;
 	type DoneSlashHandler = ();
+	type BurnDestination = pallet_balances::DirectBurn<Runtime>;
 }
 
 parameter_types! {