//! Trait for indicators that consume index price snapshots.
use crate::core::types::IndexPrice;
use crate::bar_indicators::indicator_value::IndicatorValue;
/// Indicators that process index price data.
pub trait IndexPriceConsumer {
/// Process a new index price snapshot and return the updated value.
fn update_index_price(&mut self, ip: &IndexPrice) -> IndicatorValue;
/// Current value without updating.
fn value(&self) -> IndicatorValue;
/// Reset internal state.
fn reset(&mut self);
/// True if the indicator has enough data to produce reliable signals.
fn is_ready(&self) -> bool;
}