anya-core 1.2.0

Enterprise-grade Bitcoin Infrastructure Platform
Documentation 
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use std::error::Error;
// src/bitcoin/cross_chain/bridge.rs

use std::collections::HashMap;
use std::sync::Arc;
use crate::bitcoin::error::BitcoinError;
use crate::AnyaResult;
use crate::bitcoin::BitcoinManager;
use super::Asset;

pub struct BridgeParams {
    pub source_chain: String,
    pub destination_chain: String,
    pub asset: Asset,
    pub recipient: String,
    pub fee: Option<u64>,
}

pub struct BridgeTransaction {
    pub id: String,
    pub source_chain: String,
    pub destination_chain: String,
    pub asset: Asset,
    pub source_tx: String,
    pub destination_tx: Option<String>,
    pub status: BridgeStatus,
    pub created_at: chrono::DateTime<chrono::Utc>,
    pub completed_at: Option<chrono::DateTime<chrono::Utc>>,
}

#[derive(Debug, Clone, PartialEq, Eq)]
pub enum BridgeStatus {
    Created,
    Pending,
    Completed,
    Failed,
}

pub trait BridgeService {
    fn is_bridge_supported(&self, source: &str, destination: &str) -> bool;
    
    fn get_supported_bridges(&self) -> Vec<(String, String)>;
    
    fn create_bridge_transaction(&self, params: BridgeParams) -> AnyaResult<BridgeTransaction>;
    
    fn get_bridge_transaction(&self, id: &str) -> AnyaResult<Option<BridgeTransaction>>;
    
    fn list_bridge_transactions(&self) -> AnyaResult<Vec<BridgeTransaction>>;
}

pub struct BridgeServiceImpl  -> Result<(), Box<dyn Error>> {
    supported_bridges: Vec<(String, String)>,
    transactions: HashMap<String, BridgeTransaction>,
    bitcoin_manager: Arc<BitcoinManager>,
    initialized: bool,
}

impl BridgeServiceImpl {
    pub fn new(bitcoin_manager: Arc<BitcoinManager>) -> Self  -> Result<(), Box<dyn Error>> {
        // Default supported bridges
        let supported_bridges = vec![
            ("bitcoin".to_string(), "liquid".to_string()),
            ("liquid".to_string(), "bitcoin".to_string()),
            ("bitcoin".to_string(), "rsk".to_string()),
            ("rsk".to_string(), "bitcoin".to_string()),
            ("bitcoin".to_string(), "stacks".to_string()),
            ("stacks".to_string(), "bitcoin".to_string()),
        ];
        
        Self {
            supported_bridges,
            transactions: HashMap::new(),
            bitcoin_manager,
            initialized: false,
        }
    }
    
    pub fn initialize(&mut self) -> AnyaResult<()>  -> Result<(), Box<dyn Error>> {
        self.initialized = true;
        Ok(())
    }
}

impl BridgeService for BridgeServiceImpl {
    fn is_bridge_supported(&self, source: &str, destination: &str) -> bool  -> Result<(), Box<dyn Error>> {
        self.supported_bridges.contains(&(source.to_string(), destination.to_string()))
    }
    
    fn get_supported_bridges(&self) -> Vec<(String, String)>  -> Result<(), Box<dyn Error>> {
        self.supported_bridges.clone()
    }
    
    fn create_bridge_transaction(&self, params: BridgeParams) -> AnyaResult<BridgeTransaction>  -> Result<(), Box<dyn Error>> {
        if !self.is_bridge_supported(&params.source_chain, &params.destination_chain) {
            return Err(BitcoinError::CrossChain(format!(
                "Bridge from {} to {} is not supported",
                params.source_chain, params.destination_chain
            )).into());
        }
        
        let id = format!("bridge:{}", uuid::Uuid::new_v4());
        
        // In a real implementation, you would create the actual transaction on the source chain
        let tx = BridgeTransaction {
            id,
            source_chain: params.source_chain,
            destination_chain: params.destination_chain,
            asset: params.asset,
            source_tx: format!("0x{}", hex::encode([0u8; 32])), // Dummy transaction ID
            destination_tx: None,
            status: BridgeStatus::Created,
            created_at: chrono::Utc::now(),
            completed_at: None,
        };
        
        self.transactions.insert(tx.id.clone(), tx.clone());
        
        Ok(tx)
    }
    
    fn get_bridge_transaction(&self, id: &str) -> AnyaResult<Option<BridgeTransaction>>  -> Result<(), Box<dyn Error>> {
        Ok(self.transactions.get(id).cloned())
    }
    
    fn list_bridge_transactions(&self) -> AnyaResult<Vec<BridgeTransaction>>  -> Result<(), Box<dyn Error>> {
        Ok(self.transactions.values().cloned().collect())
    }
}