tari_crypto 0.11.2

// Copyright 2020. The Tari Project
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use crate::{ristretto::pedersen::PedersenCommitment, script::op_codes::HashValue};

/// Contextual data for use in Tari scripts. The context will typically be unambiguously and deterministically
/// populated by nodes that are executing the script.
#[derive(Debug, Clone, Default)]
pub struct ScriptContext {
    /// The height of the chain where the UTXO is being _spent_; not the height the UTXO was created in
    block_height: u64,
    /// The hash of the previous block's hash
    prev_block_hash: HashValue,
    /// The commitment of the UTXO that is attached to this script
    commitment: PedersenCommitment,
}

impl ScriptContext {
    pub fn new(height: u64, prev_hash: &HashValue, com: &PedersenCommitment) -> Self {
        ScriptContext {
            block_height: height,
            prev_block_hash: *prev_hash,
            commitment: com.clone(),
        }
    }

    #[inline(always)]
    pub fn block_height(&self) -> u64 {
        self.block_height
    }

    pub fn prev_block_hash(&self) -> &HashValue {
        &self.prev_block_hash
    }

    pub fn commitment(&self) -> &PedersenCommitment {
        &self.commitment
    }
}