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// Copyright (C) 2023 Polytope Labs (Caymans) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0

// This program 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.

// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
#![cfg_attr(not(feature = "std"), no_std)]

//! # simnode-runtime-api
//!
//!
//! Exports a substrate runtime API that allows simnode create extrinsics that are always valid for
//! the runtime

use codec::Codec;
use sp_std::vec::Vec;

sp_api::decl_runtime_apis! {
	/// Create transaction.
	/// This trait is meant to be implemented by the runtime and is responsible for constructing
	/// a transaction to be included in the block.
	pub trait CreateTransactionApi<RuntimeCall, AccountId>
		where
			RuntimeCall: Codec,
			AccountId: Codec,
	{
		/// Attempt to create signed transaction
		/// Runtime implementation is free to construct the payload to sign in any way it wants.
		/// Returns a scale encoded extrinsic Should panic if signed transaction cannot be created.
		fn create_transaction(account: AccountId, call: RuntimeCall) -> Vec<u8>;
	}
}