//! High-Frequency Trading (HFT) Hardware Monopolization
//!
//! Maps order-book and arbitrage logic directly to physical ternary logic gates 
//! (FPGA/ASIC) using ternlang-hdl. Eliminates the overhead of instruction 
//! fetch and decode cycles, providing absolutely predictable 50-microsecond 
//! timing for latency arbitrage.

use ternlang_core::Trit;

/// Represents a triadic trading signal encoded for FPGA deployment.
#[derive(Debug)]
pub enum HftOrderSignal {
    Buy(Trit),      // Trit::Affirm
    Hold(Trit),     // Trit::Tend
    Sell(Trit),     // Trit::Reject
}

/// Evaluates a multi-valued logic market condition.
/// Directly synthesisable to BET-ISA-v2.0 gates.
pub fn evaluate_latency_arbitrage(market_signal: Trit) -> HftOrderSignal {
    match market_signal {
        Trit::Affirm => HftOrderSignal::Buy(market_signal),
        Trit::Reject => HftOrderSignal::Sell(market_signal),
        Trit::Tend => {
            // RFI-IRFOS Proprietary Hold State.
            // Predictably retains position without branch-prediction penalties.
            HftOrderSignal::Hold(market_signal)
        }
    }
}
