Channel Management

use pipegate::{
    channel::{close_channel, ChannelState},
    types::PaymentChannel,
};
 
async fn close_and_withdraw(
    payment_channel: PaymentChannel,
    signature: Signature,
    raw_body: Bytes
) -> Result<TxHash, Error> {
    let rpc_url = "https://base-sepolia-rpc.publicnode.com"
        .parse()
        .unwrap();
 
    let private_key = env::var("PRIVATE_KEY")
        .expect("PRIVATE_KEY must be set");
 
    // Close channel and withdraw funds
    let tx_hash = close_channel(
        rpc_url,
        private_key.as_str(),
        &payment_channel,
        &signature,
        raw_body
    ).await?;
 
    Ok(tx_hash)
}

// Get channel state
let channel = state.get_channel(channel_id).await?;
 
// Check channel balance
if channel.balance < required_amount {
    return Err(AuthError::InsufficientBalance);
}
 
// Verify channel expiration
if channel.expiration < current_timestamp {
    return Err(AuthError::ChannelExpired);
}