state.rs

use cosmwasm_schema::cw_serde;
use cosmwasm_std::Addr;
use cw_storage_plus::Item;

#[cw_serde]
pub struct Config {
    /// Admin (set to instantiator at instantiate time). Can rotate the relayer + max_age.
    pub admin: Addr,
    /// Address authorized to post UpdatePrice.
    pub relayer_address: Addr,
    /// Max age of a price reading before it's considered stale (seconds).
    pub max_age_seconds: u64,
    /// How many history entries to keep for TWAP. At 5s polling, 60 entries = 5min window.
    pub history_size: u32,
}

#[cw_serde]
pub struct PricePoint {
    pub bwick_usd_price: u128,
    pub sol_usd_price: u128,
    pub source: String,
    pub height: u64,
    pub timestamp: u64,
}

/// Singleton config.
pub const CONFIG: Item<Config> = Item::new("config");

/// Latest price reading. `None` means no updates yet.
pub const LATEST: Item<PricePoint> = Item::new("latest");

/// Ring-buffer history for TWAP. Stored as a Vec<PricePoint>; trimmed on each insert.
pub const HISTORY: Item<Vec<PricePoint>> = Item::new("history");