bft-crdt-experiment/crates/oracle-demo/src/oracle/node.rs

use crate::{oracle, utils, AssetPair, OracleId, PriceAttestation};
use rand::Rng;
use std::sync::{Arc, Mutex};

pub(crate) struct OracleNode {
    pub(crate) id: OracleId,
    pub(crate) crdt: Arc<Mutex<oracle::NetworkCRDT>>,
    pub(crate) is_byzantine: bool,
    pub(crate) base_price: f64,
}

impl OracleNode {
    pub(crate) fn new(id: String, is_byzantine: bool) -> Self {
        Self {
            id: OracleId(id),
            crdt: Arc::new(Mutex::new(oracle::NetworkCRDT::new())),
            is_byzantine,
            base_price: 2500.0,
        }
    }

    pub(crate) fn submit_price(&self) {
        let mut rng = rand::rng();

        let price = if self.is_byzantine {
            self.base_price * 1.2 // Try to manipulate 20% higher
        } else {
            self.base_price * (1.0 + rng.random_range(-0.01..0.01))
        };

        let attestation = PriceAttestation {
            id: format!("{}_{}", self.id.0, utils::timestamp()),
            oracle_id: self.id.clone(),
            asset_pair: AssetPair("ETH/USD".to_string()),
            price,
            confidence: if self.is_byzantine { 50 } else { 95 },
            timestamp: utils::timestamp(),
        };

        let mut crdt = self.crdt.lock().unwrap();
        crdt.submit_attestation(attestation);
    }
}