// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.

// OpenEthereum 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.

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

//! Eth rpc interface.

use jsonrpc_core::BoxFuture;
use jsonrpc_derive::rpc;

use ethereum_types::{H160, H256, H520};
use v1::types::{Bytes, RichRawTransaction, TransactionRequest};

/// Signing methods implementation relying on unlocked accounts.
#[rpc(server)]
pub trait EthSigning {
    /// RPC Metadata
    type Metadata;

    /// Signs the hash of data with given address signature.
    #[rpc(meta, name = "eth_sign")]
    fn sign(&self, _: Self::Metadata, _: H160, _: Bytes) -> BoxFuture<H520>;

    /// Sends transaction; will block waiting for signer to return the
    /// transaction hash.
    /// If Signer is disable it will require the account to be unlocked.
    #[rpc(meta, name = "eth_sendTransaction")]
    fn send_transaction(&self, _: Self::Metadata, _: TransactionRequest) -> BoxFuture<H256>;

    /// Signs transactions without dispatching it to the network.
    /// Returns signed transaction RLP representation and the transaction itself.
    /// It can be later submitted using `eth_sendRawTransaction/eth_submitTransaction`.
    #[rpc(meta, name = "eth_signTransaction")]
    fn sign_transaction(
        &self,
        _: Self::Metadata,
        _: TransactionRequest,
    ) -> BoxFuture<RichRawTransaction>;
}
