feat: OTC offchain worker

Cargo.toml

@@ -30,6 +30,7 @@ members = [
   'pallets/dynamic-fees',
   'pallets/duster',
   'pallets/otc',
+  'pallets/otc-settlements',
   'pallets/bonds',
   'pallets/lbp',
   'pallets/nft',
@@ -88,6 +89,7 @@ pallet-nft = { path = "pallets/nft", default-features = false }
 pallet-omnipool = { path = "pallets/omnipool", default-features = false }
 pallet-omnipool-liquidity-mining = { path = "pallets/omnipool-liquidity-mining", default-features = false }
 pallet-otc = { path = "pallets/otc", default-features = false}
+pallet-otc-settlements = { path = "pallets/otc-settlements", default-features = false}
 pallet-relaychain-info = { path = "pallets/relaychain-info", default-features = false }
 pallet-route-executor = { path = "pallets/route-executor", default-features = false }
 pallet-stableswap = { path = "pallets/stableswap", default-features = false }

integration-tests/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "runtime-integration-tests"
-version = "1.21.8"
+version = "1.21.9"
 description = "Integration tests"
 authors = ["GalacticCouncil"]
 edition = "2021"
@@ -30,6 +30,7 @@ pallet-duster = { workspace = true }
 pallet-ema-oracle = { workspace = true }
 warehouse-liquidity-mining = { workspace = true }
 pallet-otc = { workspace = true }
+pallet-otc-settlements = { workspace = true }
 pallet-relaychain-info = { workspace = true }
 pallet-route-executor = { workspace = true}
 pallet-dca = { workspace = true}

integration-tests/src/evm_permit.rs

@@ -1141,7 +1141,7 @@ fn dispatch_permit_should_increase_account_nonce_correctly() {
 
 		let hdx_balance = user_acc.balance(HDX);
 		let tx_fee = initial_user_hdx_balance - hdx_balance;
-		assert_eq!(tx_fee, 1_798_512_789_698);
+		assert_eq!(tx_fee, 1_816_997_321_901);
 	})
 }
 

math/Cargo.toml

@@ -6,7 +6,7 @@ license = 'Apache-2.0'
 name = "hydra-dx-math"
 description = "A collection of utilities to make performing liquidity pool calculations more convenient."
 repository = 'https://github.com/galacticcouncil/hydradx-math'
-version = "8.1.1"
+version = "8.1.2"
 
 [dependencies]
 primitive-types = {default-features = false, version = '0.12.0'}

math/src/stableswap/math.rs

@@ -799,7 +799,7 @@ pub fn calculate_spot_price(
 			let mut updated_reserves = asset_reserves.clone();
 			for reserve in updated_reserves.iter_mut() {
 				if reserve.0 == added_asset.0 {
-					reserve.1.amount += added_asset.1;
+					reserve.1.amount = reserve.1.amount.checked_add(added_asset.1)?;
 				}
 			}
 

pallets/dca/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = 'pallet-dca'
-version = "1.4.7"
+version = "1.4.8"
 description = 'A pallet to manage DCA scheduling'
 authors = ['GalacticCouncil']
 edition = '2021'

pallets/dca/src/tests/mock.rs

@@ -54,10 +54,10 @@ pub type BlockNumber = u64;
 pub type AssetId = u32;
 type NamedReserveIdentifier = [u8; 8];
 
-pub const BUY_DCA_FEE_IN_NATIVE: Balance = 1374044000;
-pub const BUY_DCA_FEE_IN_DAI: Balance = 1209158720;
-pub const SELL_DCA_FEE_IN_NATIVE: Balance = 1374576000;
-pub const SELL_DCA_FEE_IN_DAI: Balance = 1209626880;
+pub const BUY_DCA_FEE_IN_NATIVE: Balance = 1375305000;
+pub const BUY_DCA_FEE_IN_DAI: Balance = 1210268400;
+pub const SELL_DCA_FEE_IN_NATIVE: Balance = 1380918000;
+pub const SELL_DCA_FEE_IN_DAI: Balance = 1215207840;
 
 pub const HDX: AssetId = 0;
 pub const LRNA: AssetId = 1;

pallets/dca/src/tests/on_initialize.rs

@@ -865,7 +865,7 @@ fn full_buy_dca_should_be_completed_when_some_execution_is_successful_but_not_en
 			assert_number_of_executed_buy_trades!(4);
 			assert_eq!(0, Currencies::reserved_balance(HDX, &ALICE));
 
-			let left_over_which_is_not_enough_for_last_trade = 9994503824000;
+			let left_over_which_is_not_enough_for_last_trade = 9994498780000;
 
 			assert_balance!(
 				ALICE,