// Copyright 2015-2019 Parity Technologies (UK) Ltd.
// This file is part of Parity Ethereum.

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

//! Misc deserialization.

macro_rules! impl_serialization {
	($key: ty => $name: ty) => {
		impl $name {
			/// Read a hash map of DappId -> $name
			pub fn read<R, S, D>(reader: R) -> Result<::std::collections::HashMap<D, S>, ::serde_json::Error> where
				R: ::std::io::Read,
				D: From<$key> + ::std::hash::Hash + Eq,
				S: From<$name> + Clone,
			{
				::serde_json::from_reader(reader).map(|ok: ::std::collections::HashMap<$key, $name>|
					ok.into_iter().map(|(a, m)| (a.into(), m.into())).collect()
				)
			}

			/// Write a hash map of DappId -> $name
			pub fn write<W, S, D>(m: &::std::collections::HashMap<D, S>, writer: &mut W) -> Result<(), ::serde_json::Error> where
				W: ::std::io::Write,
				D: Into<$key> + ::std::hash::Hash + Eq + Clone,
				S: Into<$name> + Clone,
			{
				::serde_json::to_writer(
					writer,
					&m.iter()
						.map(|(a, m)| (a.clone().into(), m.clone().into()))
						.collect::<::std::collections::HashMap<$key, $name>>()
				)
			}
		}
	}
}

mod account_meta;

pub use self::account_meta::AccountMeta;