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// Copyright (C) 2019-2022 Aleo Systems Inc.
// This file is part of the snarkVM library.

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

use super::*;

impl<N: Network, B: BlockStorage<N>, P: ProgramStorage<N>> Ledger<N, B, P> {
    /// Returns the latest state root.
    pub const fn latest_state_root(&self) -> &Field<N> {
        self.block_tree.root()
    }

    /// Returns the latest block.
    pub fn latest_block(&self) -> Result<Block<N>> {
        self.get_block(self.current_height)
    }

    /// Returns the latest block hash.
    pub const fn latest_hash(&self) -> N::BlockHash {
        self.current_hash
    }

    /// Returns the latest block height.
    pub const fn latest_height(&self) -> u32 {
        self.current_height
    }

    /// Returns the latest round number.
    pub const fn latest_round(&self) -> u64 {
        self.current_round
    }

    /// Returns the latest block coinbase target.
    pub fn latest_coinbase_target(&self) -> Result<u64> {
        Ok(self.get_header(self.current_height)?.coinbase_target())
    }

    /// Returns the latest block proof target.
    pub fn latest_proof_target(&self) -> Result<u64> {
        Ok(self.get_header(self.current_height)?.proof_target())
    }

    /// Returns the latest block timestamp.
    pub fn latest_timestamp(&self) -> Result<i64> {
        Ok(self.get_header(self.current_height)?.timestamp())
    }

    /// Returns the latest block transactions.
    pub fn latest_transactions(&self) -> Result<Transactions<N>> {
        self.get_transactions(self.current_height)
    }
}