// Copyright 2019-2025 PureStake Inc.

// This file is part of Moonbeam.

// Moonbeam 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.

// Moonbeam 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 Moonbeam.  If not, see <http://www.gnu.org/licenses/>.

//! Asset configuration for Moonbase.

//!

use crate::OpenTechCommitteeInstance;

use super::{

	currency, governance, xcm_config, AccountId, AssetId, Assets, Balance, Balances, Runtime,

	RuntimeCall, RuntimeEvent, RuntimeOrigin, FOREIGN_ASSET_PRECOMPILE_ADDRESS_PREFIX,

};

use super::moonbase_weights;

use moonkit_xcm_primitives::AccountIdAssetIdConversion;

use frame_support::{

	dispatch::GetDispatchInfo,

	parameter_types,

	traits::{AsEnsureOriginWithArg, ConstU128, ConstU32, EitherOfDiverse},

	weights::Weight,

};

use frame_system::{EnsureNever, EnsureRoot};

use parity_scale_codec::{Compact, Decode, Encode};

use scale_info::TypeInfo;

use sp_core::H160;

use sp_std::{

	convert::{From, Into},

	prelude::*,

};

// Number of items that can be destroyed with our configured max extrinsic proof size.

// x = (a - b) / c where:

// 		a: maxExtrinsic proof size

// 		b: base proof size for destroy_accounts in pallet_assets weights

// 		c: proof size for each item

// 		656.87 = (3_407_872 - 8232) / 5180

const REMOVE_ITEMS_LIMIT: u32 = 656;

// Not to disrupt the previous asset instance, we assign () to Foreign

pub type ForeignAssetInstance = ();

// For foreign assets, these parameters dont matter much

// as this will only be called by root with the forced arguments

// No deposit is substracted with those methods

parameter_types! {

	pub const AssetDeposit: Balance = 100 * currency::UNIT * currency::SUPPLY_FACTOR;

	pub const ApprovalDeposit: Balance = 0;

	pub const AssetsStringLimit: u32 = 50;

	pub const MetadataDepositBase: Balance = currency::deposit(1,68);

	pub const MetadataDepositPerByte: Balance = currency::deposit(0, 1);

}

/// We allow Root and General Admin to execute privileged asset operations.

pub type AssetsForceOrigin =

	EitherOfDiverse<EnsureRoot<AccountId>, governance::custom_origins::GeneralAdmin>;

// Required for runtime benchmarks

pallet_assets::runtime_benchmarks_enabled! {

	pub struct BenchmarkHelper;

	impl<AssetIdParameter> pallet_assets::BenchmarkHelper<AssetIdParameter> for BenchmarkHelper

	where

		AssetIdParameter: From<u128>,

	{

		fn create_asset_id_parameter(id: u32) -> AssetIdParameter {

			(id as u128).into()

		}

	}

}

// Foreign assets

impl pallet_assets::Config<ForeignAssetInstance> for Runtime {

	type RuntimeEvent = RuntimeEvent;

	type Balance = Balance;

	type AssetId = AssetId;

	type Currency = Balances;

	type ForceOrigin = AssetsForceOrigin;

	type AssetDeposit = AssetDeposit;

	type MetadataDepositBase = MetadataDepositBase;

	type MetadataDepositPerByte = MetadataDepositPerByte;

	type ApprovalDeposit = ApprovalDeposit;

	type StringLimit = AssetsStringLimit;

	type Freezer = ();

	type Extra = ();

	type AssetAccountDeposit = ConstU128<{ currency::deposit(1, 18) }>;

	type WeightInfo = moonbase_weights::pallet_assets::WeightInfo<Runtime>;

	type RemoveItemsLimit = ConstU32<{ REMOVE_ITEMS_LIMIT }>;

	type AssetIdParameter = Compact<AssetId>;

	type CreateOrigin = AsEnsureOriginWithArg<EnsureNever<AccountId>>;

	type CallbackHandle = ();

	pallet_assets::runtime_benchmarks_enabled! {

		type BenchmarkHelper = BenchmarkHelper;

	}

}

// We instruct how to register the Assets

// In this case, we tell it to Create an Asset in pallet-assets

pub struct AssetRegistrar;

use frame_support::{pallet_prelude::DispatchResult, transactional};

impl pallet_asset_manager::AssetRegistrar<Runtime> for AssetRegistrar {

	fn create_foreign_asset(

		asset: AssetId,

		min_balance: Balance,

		metadata: AssetRegistrarMetadata,

		is_sufficient: bool,

	) -> DispatchResult {

		Assets::force_create(

			RuntimeOrigin::root(),

			asset.into(),

			crate::AssetManager::account_id(),

			is_sufficient,

			min_balance,

		)?;

		// Lastly, the metadata

		Assets::force_set_metadata(

			RuntimeOrigin::root(),

			asset.into(),

			metadata.name,

			metadata.symbol,

			metadata.decimals,

			metadata.is_frozen,

		)

	}

	fn destroy_foreign_asset(asset: AssetId) -> DispatchResult {

		// Mark the asset as destroying

		Assets::start_destroy(RuntimeOrigin::root(), asset.into())

	}

}

pub struct AssetRegistrarMetadata {

	pub name: Vec<u8>,

	pub symbol: Vec<u8>,

	pub decimals: u8,

	pub is_frozen: bool,

}

pub type ForeignAssetModifierOrigin = EitherOfDiverse<

	EnsureRoot<AccountId>,

	EitherOfDiverse<

		pallet_collective::EnsureProportionMoreThan<AccountId, OpenTechCommitteeInstance, 5, 9>,

		governance::custom_origins::GeneralAdmin,

	>,

>;

impl pallet_asset_manager::Config for Runtime {

	type RuntimeEvent = RuntimeEvent;

	type Balance = Balance;

	type AssetId = AssetId;

	type AssetRegistrarMetadata = AssetRegistrarMetadata;

	type ForeignAssetType = xcm_config::AssetType;

	type AssetRegistrar = AssetRegistrar;

	type ForeignAssetModifierOrigin = ForeignAssetModifierOrigin;

	type WeightInfo = moonbase_weights::pallet_asset_manager::WeightInfo<Runtime>;

}

// Instruct how to go from an H160 to an AssetID

// We just take the lowest 128 bits

impl AccountIdAssetIdConversion<AccountId, AssetId> for Runtime {

	/// The way to convert an account to assetId is by ensuring that the prefix is 0XFFFFFFFF

	/// and by taking the lowest 128 bits as the assetId

		} else {

		}

	// The opposite conversion

}