// Copyright 2015-2017 Parity Technologies (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/>.

//! Basic account type -- the decoded RLP from the state trie.

use rlp::*;
use util::{U256, H256};

/// Basic account type.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct BasicAccount {
	/// Nonce of the account.
	pub nonce: U256,
	/// Balance of the account.
	pub balance: U256,
	/// Storage root of the account.
	pub storage_root: H256,
	/// Code hash of the account.
	pub code_hash: H256,
}

impl Encodable for BasicAccount {
	fn rlp_append(&self, s: &mut RlpStream) {
		s.begin_list(4)
			.append(&self.nonce)
			.append(&self.balance)
			.append(&self.storage_root)
			.append(&self.code_hash);
	}
}

impl Decodable for BasicAccount {
	fn decode(rlp: &UntrustedRlp) -> Result<Self, DecoderError> {
		Ok(BasicAccount {
			nonce: rlp.val_at(0)?,
			balance: rlp.val_at(1)?,
			storage_root: rlp.val_at(2)?,
			code_hash: rlp.val_at(3)?,
		})
	}
}