feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

2025-12-13 15:44:15 +03:00
commit e4778b4576
6838 changed files with 1847450 additions and 0 deletions
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+// Copyright (C) Parity Technologies (UK) Ltd.
+// This file is part of Pezkuwi.
+
+// Pezkuwi is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Pezkuwi is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Pezkuwi.  If not, see <http://www.gnu.org/licenses/>.
+
+use crate::xcm_config;
+use alloc::{boxed::Box, vec};
+use codec::{Decode, Encode};
+use core::marker::PhantomData;
+use frame_support::pallet_prelude::DispatchResult;
+use frame_system::RawOrigin;
+use pezkuwi_primitives::Balance;
+use pezkuwi_runtime_common::identity_migrator::{OnReapIdentity, WeightInfo};
+use xcm::{latest::prelude::*, VersionedLocation, VersionedXcm};
+use xcm_executor::traits::TransactAsset;
+use zagros_runtime_constants::currency::*;
+
+/// A type containing the encoding of the People Chain pallets in its runtime. Used to construct any
+/// remote calls. The codec index must correspond to the index of `IdentityMigrator` in the
+/// `construct_runtime` of the remote chain.
+#[derive(Encode, Decode)]
+enum PeopleRuntimePallets<AccountId: Encode> {
+	#[codec(index = 248)]
+	IdentityMigrator(IdentityMigratorCalls<AccountId>),
+}
+
+/// Call encoding for the calls needed from the Identity Migrator pallet.
+#[derive(Encode, Decode)]
+enum IdentityMigratorCalls<AccountId: Encode> {
+	#[codec(index = 1)]
+	PokeDeposit(AccountId),
+}
+
+/// Type that implements `OnReapIdentity` that will send the deposit needed to store the same
+/// information on a teyrchain, sends the deposit there, and then updates it.
+pub struct ToTeyrchainIdentityReaper<Runtime, AccountId>(PhantomData<(Runtime, AccountId)>);
+impl<Runtime, AccountId> ToTeyrchainIdentityReaper<Runtime, AccountId> {
+	/// Calculate the balance needed on the remote chain based on the `IdentityInfo` and `Subs` on
+	/// this chain. The total includes:
+	///
+	/// - Identity basic deposit
+	/// - `IdentityInfo` byte deposit
+	/// - Sub accounts deposit
+	/// - 2x existential deposit (1 for account existence, 1 such that the user can transact)
+	fn calculate_remote_deposit(bytes: u32, subs: u32) -> Balance {
+		// Remote deposit constants. Teyrchain uses `deposit / 100`
+		// Source:
+		// https://github.com/pezkuwichain/pezkuwi-sdk/blob/a146918/cumulus/parachains/common/src/westend.rs#L28
+		//
+		// Teyrchain Deposit Configuration:
+		//
+		// pub const BasicDeposit: Balance = deposit(1, 17);
+		// pub const ByteDeposit: Balance = deposit(0, 1);
+		// pub const SubAccountDeposit: Balance = deposit(1, 53);
+		// pub const EXISTENTIAL_DEPOSIT: Balance = constants::currency::EXISTENTIAL_DEPOSIT / 10;
+		let para_basic_deposit = deposit(1, 17) / 100;
+		let para_byte_deposit = deposit(0, 1) / 100;
+		let para_sub_account_deposit = deposit(1, 53) / 100;
+		let para_existential_deposit = EXISTENTIAL_DEPOSIT / 10;
+
+		// pallet deposits
+		let id_deposit =
+			para_basic_deposit.saturating_add(para_byte_deposit.saturating_mul(bytes as Balance));
+		let subs_deposit = para_sub_account_deposit.saturating_mul(subs as Balance);
+
+		id_deposit
+			.saturating_add(subs_deposit)
+			.saturating_add(para_existential_deposit.saturating_mul(2))
+	}
+}
+
+// Note / Warning: This implementation should only be used in a transactional context. If not, then
+// an error could result in assets being burned.
+impl<Runtime, AccountId> OnReapIdentity<AccountId> for ToTeyrchainIdentityReaper<Runtime, AccountId>
+where
+	Runtime: frame_system::Config + pallet_xcm::Config,
+	AccountId: Into<[u8; 32]> + Clone + Encode,
+{
+	fn on_reap_identity(who: &AccountId, fields: u32, subs: u32) -> DispatchResult {
+		use crate::{
+			impls::IdentityMigratorCalls::PokeDeposit,
+			weights::pezkuwi_runtime_common_identity_migrator::WeightInfo as MigratorWeights,
+		};
+
+		let total_to_send = Self::calculate_remote_deposit(fields, subs);
+
+		// define asset / destination from relay perspective
+		let wnd = Asset { id: AssetId(Here.into_location()), fun: Fungible(total_to_send) };
+		// People Chain: ParaId 1004
+		let destination: Location = Location::new(0, Teyrchain(1004));
+
+		// Do `check_out` accounting since the XCM Executor's `InitiateTeleport` doesn't support
+		// unpaid teleports.
+
+		// withdraw the asset from `who`
+		let who_origin =
+			Junction::AccountId32 { network: None, id: who.clone().into() }.into_location();
+		let _withdrawn = xcm_config::LocalAssetTransactor::withdraw_asset(&wnd, &who_origin, None)
+			.map_err(|err| {
+				log::error!(
+					target: "runtime::on_reap_identity",
+					"withdraw_asset(what: {:?}, who_origin: {:?}) error: {:?}",
+					wnd, who_origin, err
+				);
+				pallet_xcm::Error::<Runtime>::LowBalance
+			})?;
+
+		// check out
+		xcm_config::LocalAssetTransactor::can_check_out(
+			&destination,
+			&wnd,
+			// not used in AssetTransactor
+			&XcmContext { origin: None, message_id: [0; 32], topic: None },
+		)
+		.map_err(|err| {
+			log::error!(
+				target: "runtime::on_reap_identity",
+				"can_check_out(destination: {:?}, asset: {:?}, _) error: {:?}",
+				destination, wnd, err
+			);
+			pallet_xcm::Error::<Runtime>::CannotCheckOutTeleport
+		})?;
+		xcm_config::LocalAssetTransactor::check_out(
+			&destination,
+			&wnd,
+			// not used in AssetTransactor
+			&XcmContext { origin: None, message_id: [0; 32], topic: None },
+		);
+
+		// reanchor
+		let wnd_reanchored: Assets =
+			vec![Asset { id: AssetId(Location::new(1, Here)), fun: Fungible(total_to_send) }]
+				.into();
+
+		let poke = PeopleRuntimePallets::<AccountId>::IdentityMigrator(PokeDeposit(who.clone()));
+		let remote_weight_limit = MigratorWeights::<Runtime>::poke_deposit().saturating_mul(2);
+
+		// Actual program to execute on People Chain.
+		let program: Xcm<()> = Xcm(vec![
+			// Unpaid as this is constructed by the system, once per user. The user shouldn't have
+			// their balance reduced by teleport fees for the favor of migrating.
+			UnpaidExecution { weight_limit: Unlimited, check_origin: None },
+			// Receive the asset into holding.
+			ReceiveTeleportedAsset(wnd_reanchored),
+			// Deposit into the user's account.
+			DepositAsset {
+				assets: Wild(AllCounted(1)),
+				beneficiary: Junction::AccountId32 { network: None, id: who.clone().into() }
+					.into_location()
+					.into(),
+			},
+			// Poke the deposit to reserve the appropriate amount on the teyrchain.
+			Transact {
+				origin_kind: OriginKind::Superuser,
+				call: poke.encode().into(),
+				fallback_max_weight: Some(remote_weight_limit),
+			},
+		]);
+
+		// send
+		<pallet_xcm::Pallet<Runtime>>::send(
+			RawOrigin::Root.into(),
+			Box::new(VersionedLocation::from(destination)),
+			Box::new(VersionedXcm::from(program)),
+		)?;
+		Ok(())
+	}
+
+	#[cfg(feature = "runtime-benchmarks")]
+	fn ensure_successful_identity_reaping(_: &AccountId, _: u32, _: u32) {
+		crate::Dmp::make_teyrchain_reachable(1004);
+	}
+}