// ACC-Redemption: 赎回协议
// NAC 原生协议 - Charter 语言定义
// UID: nac.acc.ACCRedemptionProtocol.v1

protocol ACCRedemptionProtocol {
    // 注入赎回资金池
    fn fund_redemption_pool(asset_id: Hash, amount_xtzh: u128, constitutional_receipt: Hash) -> Result<(), Error>;
    // 提交赎回请求
    fn request_redemption(
        asset_id: Hash, redeemer: Address, amount: u128,
        redemption_price_xtzh: u128, constitutional_receipt: Hash
    ) -> Result<Hash, Error>;
    // 完成赎回（返回 XTZH 金额）
    fn complete_redemption(redemption_id: Hash, constitutional_receipt: Hash) -> Result<u128, Error>;
    // 查询赎回请求
    fn get_request(redemption_id: Hash) -> Option<RedemptionRequest>;
    // 控制赎回窗口
    fn set_redemption_window(open: bool, constitutional_receipt: Hash) -> Result<(), Error>;
}