// Copyright 2021 Parity Technologies (UK) Ltd.
// This file is part of Cumulus.

// Cumulus 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.

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

/// A special pallet that exposes dispatchables that are only useful for testing.
pub use pallet::*;

#[frame_support::pallet(dev_mode)]
pub mod pallet {
	use frame_support::pallet_prelude::*;
	use frame_system::pallet_prelude::*;

	#[pallet::pallet]
	pub struct Pallet<T>(_);

	#[pallet::config]
	pub trait Config: frame_system::Config + cumulus_pallet_parachain_system::Config {}

	#[pallet::hooks]
	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {}

	#[pallet::call]
	impl<T: Config> Pallet<T> {
		/// A test dispatchable for setting a custom head data in `validate_block`.
		#[pallet::weight(0)]
		pub fn set_custom_validation_head_data(
			_: OriginFor<T>,
			custom_header: sp_std::vec::Vec<u8>,
		) -> DispatchResult {
			cumulus_pallet_parachain_system::Pallet::<T>::set_custom_validation_head_data(
				custom_header,
			);
			Ok(())
		}
	}
}