Code shared from the Rust Playground

playground.rs

use clap::{Parser, Subcommand};
use std::path::PathBuf;

// --- Constants and Types ---

const VERSION: &str = "0.4.1";

// Placeholder structs for complex types like Wallet and GlobalConfig
// In a full implementation, these would be defined in separate modules (e.g., `config.rs`, `wallet.rs`)
// and would likely derive traits like `serde::Deserialize` and `serde::Serialize`.
struct Wallet;
struct GlobalConfig;

// --- Command Line Interface (CLI) Implementation using Clap ---

/// A trust-minimized wallet script.
///
/// You can think of this program as a small shim between your
/// air-gapped hardware wallet and Bitcoin Core.
#[derive(Parser, Debug)]
#[clap(author, version = VERSION, about, long_about = None)]
#[clap(propagate_version = true)]
struct Cli {
    #[clap(short, long, help = "Enable verbose logging")]
    verbose: bool,

    #[clap(
        short,
        long,
        help = "Path to config file. E.g., ~/.config/coldcore/config.ini"
    )]
    config: Option<PathBuf>,

    #[clap(short, long, help = "Enable debug logging")]
    debug: bool,

    #[clap(
        long,
        help = "Try to connect on the testnet network initially instead of mainnet."
    )]
    testnet: bool,

    #[clap(short, long, help = "The specific wallet to open.")]
    wallet: Option<String>,

    #[clap(
        short,
        long,
        help = "The Bitcoin Core RPC interface URL to use, e.g. 'http://user:pass@host:8332'"
    )]
    rpc: Option<String>,

    #[clap(subcommand)]
    command: Option<Commands>,
}

#[derive(Subcommand, Debug)]
enum Commands {
    /// Decode a PSBT file (Base64 or Hex).
    Decodepsbt {
        fname: String,
        #[clap(long, default_value = "json")]
        format: String,
    },
    /// Run initial setup for a wallet.
    Setup,
    /// Watch activity related to your wallets.
    Watch,
    /// Print the bitcoin-cli scanblocks command associated with this wallet.
    Scanargs,
    /// Check your wallet balances.
    Balance {
        #[clap(long, default_value = "plain")]
        format: String,
    },
    /// Consolidate certain coins within your wallet to a single UTXO (interactive).
    Consolidate,
    /// Prepare a sending PSBT.
    PrepareSend {
        to_address: String,
        amount: String,
        #[clap(long, default_value = "")]
        spend_from: String,
        #[clap(long)]
        fee_rate: Option<u32>,
    },
    /// Send all funds from the wallet.
    Sendall {
        to_address: String,
        #[clap(long)]
        fee_rate: Option<u32>,
    },
    /// Broadcast a signed PSBT.
    Broadcast { signed_psbt_path: PathBuf },
    /// Generate a new receiving address.
    Newaddr {
        #[clap(default_value = "1")]
        num: u32,
        #[clap(short = 'c', long)]
        to_clipboard: bool,
    },
    /// Start the curses-based user interface.
    Ui,
    /// Reinitialize the wallet on a new instance of bitcoind.
    ReinitWallet,
}

// --- Application Logic Placeholders ---

// The `main` function now acts as the entry point, handling CLI parsing and dispatch.
fn main() -> Result<(), Box<dyn std::error::Error>> {
    let cli = Cli::parse();

    // 1. Setup Logging (simplified)
    if cli.debug {
        eprintln!("Debug logging enabled.");
    }

    // 2. Load Configuration and Wallets (placeholder logic)
    // In a real app, this would involve disk I/O, potential GPG/Pass decryption,
    // and deserialization into GlobalConfig and Vec<Wallet>.
    let (config, wallets) = load_config_and_wallets(&cli)?;

    // 3. Command Dispatch
    match cli.command {
        Some(Commands::Setup) => handle_setup(config, wallets),
        Some(Commands::Ui) => handle_ui(config, wallets),
        Some(cmd) => handle_command(cmd, config, wallets),
        None => handle_ui(config, wallets), // Default action in Python was `ui()`
    }

    Ok(())
}

fn load_config_and_wallets(
    _cli: &Cli,
) -> Result<(GlobalConfig, Vec<Wallet>), Box<dyn std::error::Error>> {
    // Implement full configuration loading here:
    // - Check for --config or default paths
    // - Handle GPG/Pass (via external commands or a dedicated library)
    // - Parse INI file and create GlobalConfig and Wallet structs

    // Placeholder return:
    Ok((GlobalConfig, vec![]))
}

fn handle_setup(_config: GlobalConfig, _wallets: Vec<Wallet>) {
    println!("Running initial wallet setup...");
    // This would call a function equivalent to Python's `run_setup`,
    // which handles RPC discovery, Coldcard export, and Core wallet creation.
}

fn handle_ui(_config: GlobalConfig, _wallets: Vec<Wallet>) {
    println!("Starting the Curses-based UI...");
    // This function is where the `ratatui`/`crossterm` logic for the TUI would live,
    // mirroring the Python `start_ui` and `draw_menu` functions.
    // It would need to manage state and threads for background RPC polling.
}

fn handle_command(cmd: Commands, _config: GlobalConfig, _wallets: Vec<Wallet>) {
    println!("Executing command: {:?}", cmd);
    // Each arm of this match statement would call the corresponding function
    // (e.g., `decodepsbt`, `balance`, `prepare_send`), which would rely heavily
    // on a full-featured Rust RPC client implementation.
}

// --- RPC Client Implementation (Stub) ---

// A full implementation would need a comprehensive RPC client.
// The `rpc` module would contain the `BitcoinRPC` struct and its methods.
mod rpc {
    // This module would use `reqwest` for HTTP and `serde` for JSON.
    // Error handling would involve custom error types (like the Python `JSONRPCError`).
    pub struct BitcoinRPC;

    impl BitcoinRPC {
        // A full implementation would need methods like:
        // pub fn new(...) -> Self { ... }
        // pub fn getblockchaininfo(&self) -> Result<serde_json::Value, String> { ... }
        // pub fn getnewaddress(&self) -> Result<String, String> { ... }
        // pub fn walletcreatefundedpsbt(&self, ...) -> Result<String, String> { ... }
    }
}

//