// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.

// Parity 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.

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

//! Blockhain info type definition

use util::{U256, H256};
use header::BlockNumber;

/// Information about the blockchain gathered together.
#[derive(Clone, Debug, Binary)]
pub struct BlockChainInfo {
	/// Blockchain difficulty.
	pub total_difficulty: U256,
	/// Block queue difficulty.
	pub pending_total_difficulty: U256,
	/// Genesis block hash.
	pub genesis_hash: H256,
	/// Best blockchain block hash.
	pub best_block_hash: H256,
	/// Best blockchain block number.
	pub best_block_number: BlockNumber,
	/// Best ancient block hash.
	pub ancient_block_hash: Option<H256>,
	/// Best ancient block number.
	pub ancient_block_number: Option<BlockNumber>,
	/// First block on the best sequence.
	pub first_block_hash: Option<H256>,
	/// Number of the first block on the best sequence.
	pub first_block_number: Option<BlockNumber>,
}
