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// Copyright (C) 2019-2020 Aleo Systems Inc.
// This file is part of the snarkOS library.

// The snarkOS library 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.

// The snarkOS library 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 the snarkOS library. If not, see <https://www.gnu.org/licenses/>.

use hex;
use serde::{Deserialize, Serialize};
use std::fmt::{self, Display, Formatter};

#[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)]
pub struct BlockHeaderHash(pub [u8; 32]);

impl BlockHeaderHash {
    pub fn new(hash: Vec<u8>) -> Self {
        let mut block_hash = [0u8; 32];
        block_hash.copy_from_slice(&hash);

        Self(block_hash)
    }

    pub const fn size() -> usize {
        32
    }
}

impl Display for BlockHeaderHash {
    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
        write!(f, "{}", hex::encode(self.0))
    }
}