xrpl-rust 1.1.0

use alloc::string::String;
use thiserror_no_std::Error;

#[cfg(feature = "std")]
mod std_cli;

#[cfg(feature = "std")]
pub use std_cli::run;

/// Default mainnet URL for JSON-RPC requests
pub const DEFAULT_MAINNET_URL: &str = "https://xrplcluster.com/";

/// Default testnet URL for faucet functionality
pub const DEFAULT_TESTNET_URL: &str = "https://s.altnet.rippletest.net:51234";

/// Default WebSocket URL
pub const DEFAULT_WEBSOCKET_URL: &str = "wss://xrplcluster.com/";

/// Default limit for paginated results
pub const DEFAULT_PAGINATION_LIMIT: u32 = 10;

// CLI commands with subcommand hierarchy
#[cfg_attr(feature = "std", derive(clap::Parser))]
#[derive(Debug, Clone)]
#[cfg_attr(
    feature = "std",
    command(name = "xrpl", about = "XRPL command line utility")
)]
pub struct Cli {
    #[cfg_attr(feature = "std", command(subcommand))]
    pub command: Commands,
}

#[cfg_attr(feature = "std", derive(clap::Subcommand))]
#[derive(Debug, Clone)]
pub enum Commands {
    /// Wallet operations
    #[cfg_attr(feature = "std", command(subcommand))]
    Wallet(WalletCommands),

    /// Account operations
    #[cfg_attr(feature = "std", command(subcommand))]
    Account(AccountCommands),

    /// Transaction operations
    #[cfg_attr(feature = "std", command(subcommand))]
    Transaction(TransactionCommands),

    /// Server operations
    #[cfg_attr(feature = "std", command(subcommand))]
    Server(ServerCommands),

    /// Ledger operations
    #[cfg_attr(feature = "std", command(subcommand))]
    Ledger(LedgerCommands),
}

#[cfg_attr(feature = "std", derive(clap::Subcommand))]
#[derive(Debug, Clone)]
pub enum WalletCommands {
    /// Generate a new wallet
    Generate {
        /// Save the wallet to a file
        #[cfg_attr(feature = "std", arg(long))]
        save: bool,

        /// Generate a BIP39 mnemonic phrase
        #[cfg_attr(feature = "std", arg(long))]
        mnemonic: bool,

        /// Number of words for the mnemonic (12, 15, 18, 21, 24)
        #[cfg_attr(feature = "std", arg(long, default_value_t = 12))]
        words: usize,
    },

    /// Get wallet info from seed
    FromSeed {
        /// The seed to use
        #[cfg_attr(feature = "std", arg(long))]
        seed: String,
        /// The sequence number
        #[cfg_attr(feature = "std", arg(long, default_value = "0"))]
        sequence: u64,
    },

    /// Generate a wallet funded by the testnet faucet
    #[cfg(feature = "std")]
    Faucet {
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_TESTNET_URL.into()))]
        url: String,
    },

    /// Validate an address
    Validate {
        /// The address to validate
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
    },
}

#[cfg_attr(feature = "std", derive(clap::Subcommand))]
#[derive(Debug, Clone)]
pub enum AccountCommands {
    /// Get account info
    Info {
        /// The account address
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Get account transactions
    Tx {
        /// The account address
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
        /// Limit the number of transactions returned
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_PAGINATION_LIMIT))]
        limit: u32,
    },

    /// Get account objects (trust lines, offers, etc.)
    Objects {
        /// The account address
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
        /// Type of objects to return (all, offer, state, etc.)
        #[cfg_attr(feature = "std", arg(long))]
        type_filter: Option<String>,
        /// Limit the number of objects returned
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_PAGINATION_LIMIT as u16))]
        limit: u16,
    },

    /// Get account channels
    Channels {
        /// The account address
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
        /// Destination account to filter channels
        #[cfg_attr(feature = "std", arg(long))]
        destination_account: Option<String>,
        /// Limit the number of channels returned
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_PAGINATION_LIMIT as u16))]
        limit: u16,
    },

    /// Get account currencies
    Currencies {
        /// The account address
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Get account trust lines
    Lines {
        /// The account address
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
        /// Peer account to filter trust lines
        #[cfg_attr(feature = "std", arg(long))]
        peer: Option<String>,
        /// Limit the number of trust lines returned
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_PAGINATION_LIMIT as u16))]
        limit: u16,
    },

    /// Get account NFTs (XLS-20)
    Nfts {
        /// The account address
        #[cfg_attr(feature = "std", arg(long))]
        address: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Set an account flag
    SetFlag {
        /// The seed to use for signing
        #[cfg_attr(feature = "std", arg(short, long))]
        seed: String,
        /// The flag to set (e.g., asfRequireAuth, asfDisableMaster, etc.)
        #[cfg_attr(feature = "std", arg(short, long))]
        flag: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(short, long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Clear an account flag
    ClearFlag {
        /// The seed to use for signing
        #[cfg_attr(feature = "std", arg(short, long))]
        seed: String,
        /// The flag to clear (e.g., asfRequireAuth, asfDisableMaster, etc.)
        #[cfg_attr(feature = "std", arg(short, long))]
        flag: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(short, long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },
}

#[cfg_attr(feature = "std", derive(clap::Subcommand))]
#[derive(Debug, Clone)]
pub enum TransactionCommands {
    /// Sign a transaction
    Sign {
        /// The seed to use for signing
        #[cfg_attr(feature = "std", arg(short, long))]
        seed: String,
        /// The transaction type (Payment, AccountSet, etc.)
        #[cfg_attr(feature = "std", arg(short, long))]
        r#type: String,
        /// The transaction JSON
        #[cfg_attr(feature = "std", arg(short, long))]
        json: String,
    },

    /// Submit a transaction
    Submit {
        /// The signed transaction blob or JSON
        #[cfg_attr(feature = "std", arg(short, long))]
        tx_blob: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(short, long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Set or modify a trust line
    TrustSet {
        /// The seed to use for signing
        #[cfg_attr(feature = "std", arg(short, long))]
        seed: String,
        /// The issuer account
        #[cfg_attr(feature = "std", arg(short, long))]
        issuer: String,
        /// The currency code (3-letter or 40-char hex)
        #[cfg_attr(feature = "std", arg(short, long))]
        currency: String,
        /// The trust line limit (amount)
        #[cfg_attr(feature = "std", arg(short, long))]
        limit: String,
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(short, long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Mint an NFT (XLS-20)
    NftMint {
        /// The seed to use for signing
        #[cfg_attr(feature = "std", arg(short, long))]
        seed: String,
        /// URI for the NFT (hex-encoded)
        #[cfg_attr(feature = "std", arg(long))]
        uri: String,
        /// Flags (optional)
        #[cfg_attr(feature = "std", arg(long))]
        flags: Option<u32>,
        /// Transfer fee (optional)
        #[cfg_attr(feature = "std", arg(long))]
        transfer_fee: Option<u16>,
        /// XRPL node URL
        #[cfg_attr(feature = "std", arg(short, long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Burn an NFT (XLS-20)
    NftBurn {
        /// The seed to use for signing
        #[cfg_attr(feature = "std", arg(short, long))]
        seed: String,
        /// NFT Token ID to burn
        #[cfg_attr(feature = "std", arg(short, long))]
        nftoken_id: String,
        /// XRPL node URL
        #[cfg_attr(feature = "std", arg(short, long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },
}

#[cfg_attr(feature = "std", derive(clap::Subcommand))]
#[derive(Debug, Clone)]
pub enum ServerCommands {
    /// Get current network fee
    Fee {
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Get server info
    Info {
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
    },

    /// Subscribe to ledger events
    Subscribe {
        /// The XRPL node WebSocket URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_WEBSOCKET_URL.into()))]
        url: String,
        /// Stream type to subscribe to (ledger, transactions, validations)
        #[cfg_attr(feature = "std", arg(long, default_value = "ledger"))]
        stream: String,
        /// Number of events to receive before exiting (0 for unlimited)
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_PAGINATION_LIMIT))]
        limit: u32,
    },
}

#[cfg_attr(feature = "std", derive(clap::Subcommand))]
#[derive(Debug, Clone)]
pub enum LedgerCommands {
    /// Get ledger data
    Data {
        /// The XRPL node URL
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_MAINNET_URL.into()))]
        url: String,
        /// Ledger index (empty for latest)
        #[cfg_attr(feature = "std", arg(long))]
        ledger_index: Option<String>,
        /// Ledger hash (empty for latest)
        #[cfg_attr(feature = "std", arg(long))]
        ledger_hash: Option<String>,
        /// Limit the number of objects returned
        #[cfg_attr(feature = "std", arg(long, default_value_t = DEFAULT_PAGINATION_LIMIT as u16))]
        limit: u16,
    },
}

/// Define a custom error type for CLI operations
#[derive(Debug, Error)]
pub enum CliError {
    #[error("Wallet error: {0}")]
    WalletError(#[from] crate::wallet::exceptions::XRPLWalletException),
    #[error("Client error: {0}")]
    ClientError(#[from] crate::asynch::clients::exceptions::XRPLClientException),
    #[error("URL parse error: {0}")]
    UrlParseError(#[from] url::ParseError),
    #[error("JSON error: {0}")]
    JsonError(#[from] serde_json::Error),
    #[error("IO error: {0}")]
    IoError(#[from] std::io::Error),
    #[error("Helper error: {0}")]
    HelperError(#[from] crate::asynch::exceptions::XRPLHelperException),
    #[error("Core error: {0}")]
    CoreError(#[from] crate::core::exceptions::XRPLCoreException),
    #[error("Other error: {0}")]
    Other(String),
}

/// Helper function to parse a URL string with proper error handling
#[cfg(feature = "std")]
fn parse_url(url_str: &str) -> Result<url::Url, CliError> {
    url_str.parse().map_err(CliError::UrlParseError)
}

/// Helper function to create a JSON-RPC client with proper error handling
#[cfg(feature = "std")]
fn create_json_rpc_client(
    url_str: &str,
) -> Result<crate::clients::json_rpc::JsonRpcClient, CliError> {
    use crate::clients::json_rpc::JsonRpcClient;
    Ok(JsonRpcClient::connect(parse_url(url_str)?))
}

/// Helper function to handle response display and error conversion
#[cfg(feature = "std")]
fn handle_response<T: core::fmt::Debug>(
    result: Result<T, crate::asynch::clients::exceptions::XRPLClientException>,
    response_type: &str,
) -> Result<(), CliError> {
    match result {
        Ok(response) => {
            alloc::println!("{}: {:#?}", response_type, response);
            Ok(())
        }
        Err(e) => Err(CliError::ClientError(e)),
    }
}

/// Helper function to get or create a Tokio runtime
#[cfg(feature = "std")]
fn get_or_create_runtime() -> Result<tokio::runtime::Runtime, CliError> {
    use tokio::runtime::Runtime;
    Runtime::new().map_err(CliError::IoError)
}

/// Helper function to handle common transaction encoding and output steps
#[cfg(feature = "std")]
fn encode_and_print_tx<T: serde::Serialize>(tx: &T) -> Result<String, CliError> {
    let tx_blob = crate::core::binarycodec::encode(tx)?;
    alloc::println!("Signed transaction blob: {}", tx_blob);
    Ok(tx_blob)
}

pub fn execute_command(command: &Commands) -> Result<(), CliError> {
    match command {
        Commands::Wallet(wallet_cmd) => match wallet_cmd {
            WalletCommands::Generate {
                save,
                mnemonic,
                words,
            } => {
                if *mnemonic {
                    use bip39::{Language, Mnemonic};

                    let mut rng = rand::thread_rng();
                    let mnemonic = Mnemonic::generate_in_with(&mut rng, Language::English, *words)
                        .expect("Invalid word count (must be 12, 15, 18, 21, or 24)");
                    let seed = mnemonic.to_seed(""); // Returns [u8; 64]
                    let phrase = mnemonic.words().collect::<Vec<_>>().join(" ");

                    alloc::println!(
                        "Generated wallet with mnemonic:\nMnemonic: {}\nSeed: {}",
                        phrase,
                        hex::encode(seed)
                    );
                    // Print derived address, public key, etc.
                } else {
                    let wallet = crate::wallet::Wallet::create(None)?;
                    alloc::println!("Generated wallet: {:#?}", wallet);
                    if *save {
                        alloc::println!("Saving wallet functionality not implemented yet");
                    }
                }
                Ok(())
            }
            WalletCommands::FromSeed { seed, sequence } => {
                let wallet = crate::wallet::Wallet::new(seed, *sequence)?;
                alloc::println!("Wallet from seed: {:#?}", wallet);
                Ok(())
            }
            #[cfg(feature = "std")]
            WalletCommands::Faucet { url } => {
                use crate::asynch::clients::AsyncJsonRpcClient;
                use crate::asynch::wallet::generate_faucet_wallet;

                // Get or create a runtime
                let rt = get_or_create_runtime()?;

                // Execute within the runtime
                let result = rt.block_on(async {
                    let client = AsyncJsonRpcClient::connect(url.parse()?);
                    generate_faucet_wallet(&client, None, None, None, None).await
                });

                match result {
                    Ok(wallet) => {
                        alloc::println!("Generated faucet wallet: {:#?}", wallet);
                        Ok(())
                    }
                    Err(e) => Err(CliError::Other(format!(
                        "Failed to generate faucet wallet: {}",
                        e
                    ))),
                }
            }
            WalletCommands::Validate { address } => {
                use crate::core::addresscodec::{is_valid_classic_address, is_valid_xaddress};

                let is_valid_classic = is_valid_classic_address(address);
                let is_valid_x = is_valid_xaddress(address);

                if is_valid_classic {
                    alloc::println!("Valid classic address: {}", address);
                    Ok(())
                } else if is_valid_x {
                    use crate::core::addresscodec::xaddress_to_classic_address;
                    let (classic_address, tag, is_test) = xaddress_to_classic_address(address)?;
                    alloc::println!("Valid X-address: {}", address);
                    alloc::println!("  Classic address: {}", classic_address);
                    alloc::println!("  Destination tag: {:?}", tag);
                    alloc::println!("  Test network: {}", is_test);
                    Ok(())
                } else {
                    Err(CliError::Other(format!("Invalid address: {}", address)))
                }
            }
        },

        Commands::Account(account_cmd) => match account_cmd {
            #[cfg(feature = "std")]
            AccountCommands::Info { address, url } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::account_info::AccountInfo;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let account_info = AccountInfo::new(
                    None,                   // id
                    address.clone().into(), // account
                    None,                   // strict
                    None,                   // ledger_index
                    None,                   // ledger_hash
                    None,                   // queue
                    None,                   // signer_lists
                );

                // Execute request and handle response
                handle_response(client.request(account_info.into()), "Account info")
            }
            #[cfg(feature = "std")]
            AccountCommands::Tx {
                address,
                url,
                limit,
            } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::account_tx::AccountTx;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let account_tx = AccountTx::new(
                    None,
                    address.clone().into(),
                    None,
                    None,
                    None,
                    None,
                    Some(*limit),
                    None,
                    None,
                    None,
                );

                // Execute request and handle response
                handle_response(client.request(account_tx.into()), "Account transactions")
            }
            #[cfg(feature = "std")]
            AccountCommands::Objects {
                address,
                url,
                type_filter,
                limit,
            } => {
                use std::str::FromStr;

                use crate::clients::XRPLSyncClient;
                use crate::models::requests::account_objects::{AccountObjectType, AccountObjects};

                // Parse the type_filter into AccountObjectType if provided
                let object_type = if let Some(filter) = type_filter.as_deref() {
                    match AccountObjectType::from_str(filter) {
                        Ok(obj_type) => Some(obj_type),
                        Err(_) => {
                            return Err(CliError::Other(format!(
                                "Invalid object type: {}",
                                filter
                            )));
                        }
                    }
                } else {
                    None
                };

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let account_objects = AccountObjects::new(
                    None,
                    address.clone().into(),
                    None,
                    None,
                    object_type,
                    None,
                    Some(*limit),
                    None,
                );

                // Execute request and handle response
                handle_response(client.request(account_objects.into()), "Account objects")
            }
            #[cfg(feature = "std")]
            AccountCommands::Channels {
                address,
                url,
                destination_account,
                limit,
            } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::account_channels::AccountChannels;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let account_channels = AccountChannels::new(
                    None,
                    address.clone().into(),
                    destination_account.as_deref().map(Into::into),
                    None,
                    None,
                    Some(*limit),
                    None,
                );

                // Execute request and handle response
                handle_response(client.request(account_channels.into()), "Account channels")
            }
            #[cfg(feature = "std")]
            AccountCommands::Currencies { address, url } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::account_currencies::AccountCurrencies;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let account_currencies =
                    AccountCurrencies::new(None, address.clone().into(), None, None, None);

                // Execute request and handle response
                handle_response(
                    client.request(account_currencies.into()),
                    "Account currencies",
                )
            }
            #[cfg(feature = "std")]
            AccountCommands::Lines {
                address,
                url,
                peer,
                limit,
            } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::account_lines::AccountLines;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let account_lines = AccountLines::new(
                    None,
                    address.clone().into(),
                    None,
                    None,
                    Some(*limit),
                    peer.as_deref().map(Into::into),
                );

                // Execute request and handle response
                handle_response(client.request(account_lines.into()), "Account trust lines")
            }
            #[cfg(feature = "std")]
            AccountCommands::Nfts { address, url } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::account_nfts::AccountNfts;

                let client = create_json_rpc_client(url)?;
                let req = AccountNfts::new(
                    None,                   // id
                    address.clone().into(), // account
                    None,                   // limit
                    None,                   // marker
                );

                handle_response(client.request(req.into()), "Account NFTs")
            }
            #[cfg(feature = "std")]
            AccountCommands::SetFlag { seed, flag, url } => {
                use alloc::borrow::Cow;
                use core::str::FromStr;

                use crate::asynch::transaction::sign;
                use crate::models::transactions::account_set::{AccountSet, AccountSetFlag};
                use crate::wallet::Wallet;

                let wallet = Wallet::new(seed, 0)?;
                let flag_enum = AccountSetFlag::from_str(flag)
                    .map_err(|_| CliError::Other(format!("Invalid flag: {}", flag)))?;

                let mut tx = AccountSet::new(
                    Cow::Owned(wallet.classic_address.clone()),
                    None,            // account_txn_id
                    None,            // fee
                    None,            // flags
                    None,            // last_ledger_sequence
                    None,            // memos
                    None,            // sequence
                    None,            // signers
                    None,            // source_tag
                    None,            // ticket_sequence
                    None,            // clear_flag
                    None,            // domain
                    None,            // email_hash
                    None,            // message_key
                    Some(flag_enum), // set_flag
                    None,            // transfer_rate
                    None,            // tick_size
                    None,            // nftoken_minter
                );

                sign(&mut tx, &wallet, false)?;
                let tx_blob = encode_and_print_tx(&tx)?;

                alloc::println!(
                    "To submit, use: xrpl transaction submit --tx-blob {} --url {}",
                    tx_blob,
                    url
                );
                Ok(())
            }

            #[cfg(feature = "std")]
            AccountCommands::ClearFlag { seed, flag, url } => {
                use alloc::borrow::Cow;
                use core::str::FromStr;

                use crate::asynch::transaction::sign;
                use crate::models::transactions::account_set::{AccountSet, AccountSetFlag};
                use crate::wallet::Wallet;

                let wallet = Wallet::new(seed, 0)?;
                let flag_enum = AccountSetFlag::from_str(flag)
                    .map_err(|_| CliError::Other(format!("Invalid flag: {}", flag)))?;

                let mut tx = AccountSet::new(
                    Cow::Owned(wallet.classic_address.clone()),
                    None,            // account_txn_id
                    None,            // fee
                    None,            // flags
                    None,            // last_ledger_sequence
                    None,            // memos
                    None,            // sequence
                    None,            // signers
                    None,            // source_tag
                    None,            // ticket_sequence
                    None,            // clear_flag
                    None,            // domain
                    None,            // email_hash
                    None,            // message_key
                    Some(flag_enum), // set_flag
                    None,            // transfer_rate
                    None,            // tick_size
                    None,            // nftoken_minter
                );

                sign(&mut tx, &wallet, false)?;
                let tx_blob = encode_and_print_tx(&tx)?;

                alloc::println!(
                    "To submit, use: xrpl transaction submit --tx-blob {} --url {}",
                    tx_blob,
                    url
                );
                Ok(())
            }
        },

        Commands::Transaction(tx_cmd) => match tx_cmd {
            #[cfg(feature = "std")]
            TransactionCommands::Sign { seed, r#type, json } => {
                use serde_json::Value;

                use crate::models::transactions::{
                    account_set::AccountSet, offer_cancel::OfferCancel, offer_create::OfferCreate,
                    payment::Payment, trust_set::TrustSet,
                };
                use crate::wallet::Wallet;

                // Create wallet from seed
                let wallet = Wallet::new(seed, 0)?;

                // Parse the JSON
                let json_value: Value = serde_json::from_str(json)?;

                use crate::asynch::transaction::sign;

                // Handle different transaction types
                match r#type.to_lowercase().as_str() {
                    "payment" => {
                        let mut tx: Payment = serde_json::from_value(json_value)?;
                        sign(&mut tx, &wallet, false)?;
                        encode_and_print_tx(&tx)?;
                    }
                    "accountset" => {
                        let mut tx: AccountSet = serde_json::from_value(json_value)?;
                        sign(&mut tx, &wallet, false)?;
                        encode_and_print_tx(&tx)?;
                    }
                    "offercreate" => {
                        let mut tx: OfferCreate = serde_json::from_value(json_value)?;
                        sign(&mut tx, &wallet, false)?;
                        encode_and_print_tx(&tx)?;
                    }
                    "offercancel" => {
                        let mut tx: OfferCancel = serde_json::from_value(json_value)?;
                        sign(&mut tx, &wallet, false)?;
                        encode_and_print_tx(&tx)?;
                    }
                    "trustset" => {
                        let mut tx: TrustSet = serde_json::from_value(json_value)?;
                        sign(&mut tx, &wallet, false)?;
                        encode_and_print_tx(&tx)?;
                    }
                    _ => {
                        return Err(CliError::Other(format!(
                            "Unsupported transaction type: {}",
                            r#type
                        )));
                    }
                }

                Ok(())
            }
            #[cfg(feature = "std")]
            TransactionCommands::Submit { tx_blob, url } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::submit::Submit;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let submit_request = Submit::new(None, tx_blob.into(), None);

                // Execute request and handle response
                handle_response(
                    client.request(submit_request.into()),
                    "Transaction submission result",
                )
            }
            #[cfg(feature = "std")]
            TransactionCommands::TrustSet {
                seed,
                issuer,
                currency,
                limit,
                url,
            } => {
                use alloc::borrow::Cow;

                use crate::models::transactions::trust_set::TrustSet;
                use crate::models::IssuedCurrencyAmount;
                use crate::wallet::Wallet;

                // Create wallet from seed
                let wallet = Wallet::new(seed, 0)?;

                // Build IssuedCurrencyAmount for the trust line limit
                let amount = IssuedCurrencyAmount::new(
                    currency.clone().into(), // currency code
                    issuer.clone().into(),   // issuer address
                    limit.clone().into(),    // value as string
                );

                // Build TrustSet transaction
                let mut tx = TrustSet::new(
                    Cow::Owned(wallet.classic_address.clone()),
                    None, // account_txn_id
                    None, // fee
                    None, // flags
                    None, // last_ledger_sequence
                    None, // memos
                    None, // sequence
                    None, // signers
                    None, // source_tag
                    None, // ticket_sequence
                    amount,
                    None, // quality_in
                    None, // quality_out
                );

                // Sign the transaction
                use crate::asynch::transaction::sign;
                sign(&mut tx, &wallet, false)?;

                // Encode and print the transaction blob
                let tx_blob = encode_and_print_tx(&tx)?;

                alloc::println!(
                    "To submit, use: xrpl transaction submit --tx-blob {} --url {}",
                    tx_blob,
                    url
                );

                Ok(())
            }
            #[cfg(feature = "std")]
            TransactionCommands::NftMint {
                seed,
                uri,
                flags,
                transfer_fee,
                url,
            } => {
                use crate::asynch::transaction::sign;
                use crate::models::transactions::nftoken_mint::{NFTokenMint, NFTokenMintFlag};
                use crate::wallet::Wallet;
                use alloc::borrow::Cow;

                let wallet = Wallet::new(seed, 0)?;

                // Support multiple flags via bitmask
                let flag_collection = flags.map(|f| NFTokenMintFlag::from_bits(f).into());

                let mut tx = NFTokenMint::new(
                    Cow::Owned(wallet.classic_address.clone()),
                    None, // account_txn_id
                    None, // fee
                    flag_collection,
                    None, // last_ledger_sequence
                    None, // memos
                    None, // sequence
                    None, // signers
                    None, // source_tag
                    None, // ticket_sequence
                    0,    // nftoken_taxon (0 for default, or expose as CLI param)
                    None, // issuer
                    transfer_fee.map(|v| v as u32),
                    Some(uri.clone().into()),
                );

                sign(&mut tx, &wallet, false)?;
                let tx_blob = encode_and_print_tx(&tx)?;

                alloc::println!(
                    "To submit, use: xrpl transaction submit --tx-blob {} --url {}",
                    tx_blob,
                    url
                );
                Ok(())
            }

            #[cfg(feature = "std")]
            TransactionCommands::NftBurn {
                seed,
                nftoken_id,
                url,
            } => {
                use crate::asynch::transaction::sign;
                use crate::models::transactions::nftoken_burn::NFTokenBurn;
                use crate::wallet::Wallet;
                use alloc::borrow::Cow;

                let wallet = Wallet::new(seed, 0)?;

                let mut tx = NFTokenBurn::new(
                    Cow::Owned(wallet.classic_address.clone()),
                    None, // account_txn_id
                    None, // fee
                    None, // last_ledger_sequence
                    None, // memos
                    None, // sequence
                    None, // signers
                    None, // source_tag
                    None, // ticket_sequence
                    nftoken_id.clone().into(),
                    None, // owner (optional, only needed if burning on behalf of another)
                );

                sign(&mut tx, &wallet, false)?;
                let tx_blob = encode_and_print_tx(&tx)?;

                alloc::println!(
                    "To submit, use: xrpl transaction submit --tx-blob {} --url {}",
                    tx_blob,
                    url
                );
                Ok(())
            }
        },

        Commands::Server(server_cmd) => match server_cmd {
            #[cfg(feature = "std")]
            ServerCommands::Fee { url } => {
                use crate::ledger::{get_fee, FeeType};

                // Create a runtime and client
                let rt = get_or_create_runtime()?;
                let client = create_json_rpc_client(url)?;

                // Get the current fee within the Tokio runtime
                match rt.block_on(async { get_fee(&client, None, Some(FeeType::Open)) }) {
                    Ok(fee) => {
                        alloc::println!("Current network fee: {} drops", fee);
                        Ok(())
                    }
                    Err(e) => Err(CliError::HelperError(e)),
                }
            }
            #[cfg(feature = "std")]
            ServerCommands::Info { url } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::server_info::ServerInfo;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let server_info = ServerInfo::new(None);

                // Execute request and handle response
                handle_response(client.request(server_info.into()), "Server info")
            }
            #[cfg(feature = "std")]
            ServerCommands::Subscribe { url, stream, limit } => {
                use crate::clients::websocket::WebSocketClient;
                use crate::clients::{SingleExecutorMutex, XRPLSyncWebsocketIO};
                use crate::models::requests::subscribe::{StreamParameter, Subscribe};

                // Parse the stream type
                let stream_param = match stream.to_lowercase().as_str() {
                    "ledger" => StreamParameter::Ledger,
                    "transactions" => StreamParameter::Transactions,
                    "validations" => StreamParameter::Validations,
                    _ => return Err(CliError::Other(format!("Unknown stream type: {}", stream))),
                };

                // Open a websocket connection with consistent URL parsing
                let mut websocket: WebSocketClient<SingleExecutorMutex, _> =
                    WebSocketClient::open(parse_url(url)?)?;

                // Subscribe to the stream
                let subscribe = Subscribe::new(
                    None,
                    None,
                    None,
                    None,
                    Some(vec![stream_param]),
                    None,
                    None,
                    None,
                );

                websocket.xrpl_send(subscribe.into())?;

                // Listen for messages
                let mut count = 0;
                loop {
                    if *limit > 0 && count >= *limit {
                        break;
                    }

                    match websocket.xrpl_receive() {
                        Ok(Some(response)) => {
                            alloc::println!("Received: {:#?}", response);
                            count += 1;
                        }
                        Ok(None) => {
                            std::thread::sleep(std::time::Duration::from_millis(100));
                        }
                        Err(e) => {
                            return Err(CliError::ClientError(e));
                        }
                    }
                }

                Ok(())
            }
        },

        Commands::Ledger(ledger_cmd) => match ledger_cmd {
            #[cfg(feature = "std")]
            LedgerCommands::Data {
                url,
                ledger_index,
                ledger_hash,
                limit,
            } => {
                use crate::clients::XRPLSyncClient;
                use crate::models::requests::ledger_data::LedgerData;

                // Create client with standardized helper function
                let client = create_json_rpc_client(url)?;

                // Create request
                let ledger_data = LedgerData::new(
                    None,
                    None,
                    ledger_index.as_deref().map(Into::into),
                    ledger_hash.as_deref().map(Into::into),
                    Some(*limit),
                    None,
                );

                // Execute request and handle response
                handle_response(client.request(ledger_data.into()), "Ledger data")
            }
        },
    }
}