// 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/>.

//! Test primitives for Moonbeam, including mock implementations for testing.

use frame_support::weights::{constants::WEIGHT_REF_TIME_PER_SECOND, Weight};

use sp_runtime::DispatchError;

use sp_std::cell::RefCell;

use sp_std::collections::btree_map::BTreeMap;

use xcm::latest::Location;

use xcm_primitives::XcmFeeTrader;

thread_local! {

	/// Thread-local storage for fee-per-second values keyed by asset location.

	static FEE_PER_SECOND: RefCell<BTreeMap<Location, u128>> = RefCell::new(BTreeMap::new());

}

/// Memory-based fee trader for tests that stores fee-per-second values in memory.

///

/// This implementation calculates fees based on weight and a fee-per-second rate,

/// similar to how the real weight-trader pallet works. It's useful for testing

/// XCM fee payment scenarios without requiring a full runtime setup.

pub struct MemoryFeeTrader;

impl XcmFeeTrader for MemoryFeeTrader {

		// If explicit amount is provided, use it directly

		// Get fee-per-second from storage

		// Calculate fee using the same formula as the weight-trader pallet

		// fee = (fee_per_second * weight.ref_time() + weight_per_second - 1) / weight_per_second

}