CosmWasm Connect SDK

use connect_sdk::bindings::query::ConnectQuery;
use connect_sdk::bindings::querier::ConnectQuerier;
use connect_sdk::bindings::marketmap::types::CurrencyPair;
use cosmwasm_std::{Deps, Env, StdResult, Int128, StdError};

fn do_something_with_price(
    deps: Deps<ConnectQuery>,
    env: Env,
    currency_pair: CurrencyPair
) -> StdResult<Int128> {
    let connect_querier = ConnectQuerier::new(&deps.querier);
    let base = currency_pair.base.to_uppercase();
    let quote = currency_pair.quote.to_uppercase();

    // Check if the market exists and is enabled
    let market = connect_querier.get_marketmap_market(base.clone(), quote.clone())?;
    if !market.market.ticker.enabled {
        return Err(StdError::generic_err("market is not enabled"));
    }

    // Check price validity
    let price_response = connect_querier.get_oracle_price(base, quote)?;
    if price_response.nonce == 0 {
        return Err(StdError::generic_err("price has never been updated"));
    }

    let max_price_age: u64 = 3; // adjust based on appetite for price freshness
    let price_age = env.block.height - price_response.price.block_height.unwrap();
    if price_age > max_price_age {
        return Err(StdError::generic_err("price is too old"));
    }

    // We can now do something with the price
    let valid_price = price_response.price.price;

    // Placeholder for actual price processing
    Ok(valid_price)
}