anya-core 1.2.0

Enterprise-grade Bitcoin Infrastructure Platform
Documentation 
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// Wallet Interface Port - BIP-174 (PSBT) Support
// Bitcoin Development Framework v2.5 - Hexagonal Architecture

use crate::ports::Port;

/// Wallet transaction status
#[derive(Debug, Clone, PartialEq)]
pub enum TxStatus {
    Pending,
    Confirmed,
    Rejected,
    Unknown,
}

/// PSBT role (BIP-174)
#[derive(Debug, Clone, PartialEq)]
pub enum PSBTRole {
    Creator,
    Updater,
    Signer,
    Finalizer,
    Extractor,
}

/// Simplified PSBT structure
#[derive(Debug, Clone)]
pub struct PSBT {
    pub tx_bytes: Vec<u8>,
    pub global_map: Vec<(String, Vec<u8>)>,
    pub input_maps: Vec<Vec<(String, Vec<u8>)>>,
    pub output_maps: Vec<Vec<(String, Vec<u8>)>>,
}

/// Wallet port implementation with PSBT support
pub struct WalletPort {
    connected: bool,
    has_psbt_support: bool,
    transactions: Vec<(String, TxStatus)>,
}

impl WalletPort {
    pub fn new() -> Self {
        WalletPort {
            connected: false,
            has_psbt_support: true, // Always true for BDF v2.5
            transactions: Vec::new(),
        }
    }
    
    pub fn connect(&mut self) -> Result<(), String> {
        // Placeholder for connection logic
        self.connected = true;
        Ok(())
    }
    
    pub fn disconnect(&mut self) {
        self.connected = false;
    }
    
    pub fn has_psbt_support(&self) -> bool {
        self.has_psbt_support
    }
    
    pub fn create_psbt(&self, _inputs: Vec<Vec<u8>>, _outputs: Vec<(String, u64)>) -> Result<PSBT, String> {
        // Placeholder for PSBT creation (BIP-174)
        if !self.connected {
            return Err("Not connected".to_string());
        }
        
        // In a real implementation, this would create a PSBT (BIP-174)
        Ok(PSBT {
            tx_bytes: vec![0; 100], // Dummy transaction
            global_map: vec![("version".to_string(), vec![2, 0, 0, 0])],
            input_maps: vec![vec![("non_witness_utxo".to_string(), vec![0; 100])]],
            output_maps: vec![vec![("script".to_string(), vec![0; 34])]],
        })
    }
    
    pub fn sign_psbt(&self, psbt: PSBT) -> Result<PSBT, String> {
        // Placeholder for PSBT signing
        if !self.connected {
            return Err("Not connected".to_string());
        }
        
        // In a real implementation, this would add signatures to the PSBT
        Ok(psbt)
    }
    
    pub fn finalize_psbt(&self, psbt: PSBT) -> Result<Vec<u8>, String> {
        // Placeholder for PSBT finalization
        if !self.connected {
            return Err("Not connected".to_string());
        }
        
        // In a real implementation, this would finalize the PSBT and extract the transaction
        Ok(vec![0; 200]) // Dummy transaction
    }
    
    pub fn get_transaction_status(&self, tx_id: &str) -> TxStatus {
        // Find the transaction in our list
        for (id, status) in &self.transactions {
            if id == tx_id {
                return status.clone();
            }
        }
        
        TxStatus::Unknown
    }
}

impl Port for WalletPort {
    fn name(&self) -> &'static str {
        "wallet"
    }
    
    fn version(&self) -> &'static str {
        "1.0.0"
    }
    
    fn is_connected(&self) -> bool {
        self.connected
    }
}