Future Features

// Planned API
pub mod CrossChainSyscall {
    /// Verify cross-chain message
    fn verify_cross_chain_msg(
        source_chain: ChainId,
        message: CrossChainMessage,
        proof: MultisigProof,
    ) -> Result<(), CrossChainError>;
 
    /// Lock assets for bridging
    fn bridge_lock(
        asset: Asset,
        target_chain: ChainId,
        target_address: Vec<u8>,
    ) -> Result<Hash, CrossChainError>;
}

// Planned API
pub mod OracleSyscall {
    /// Get current price
    fn get_price(
        base_asset: Hash,
        quote_asset: Hash,
    ) -> Result<PriceData, OracleError>;
 
    /// Subscribe to price updates
    fn subscribe_price(
        pair: (Hash, Hash),
        callback_contract: Address,
        threshold_bps: u16,  // Min change to trigger
    ) -> Result<u64, OracleError>;
 
    /// Get historical price
    fn get_price_at(
        pair: (Hash, Hash),
        timestamp: u64,
    ) -> Result<PriceData, OracleError>;
}
 
pub struct PriceData {
    pub price: u64,       // Price with 8 decimals
    pub timestamp: u64,   // Last update time
    pub confidence: u16,  // Data quality (basis points)
    pub sources: u8,      // Number of data sources
}