anya-core 1.2.0

//! RSK (Rootstock) Layer 2 Integration
//!
//! This module provides integration with the RSK sidechain,
//! which brings smart contract functionality to Bitcoin.

use crate::layer2::{
    AssetParams, AssetTransfer, Layer2ProtocolTrait, Proof, ProtocolState, TransactionStatus,
    TransferResult, ValidationResult, VerificationResult,
};
use serde::{Deserialize, Serialize};
use uuid;

/// RSK configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RskConfig {
    /// Network type (mainnet, testnet)
    pub network: String,
    /// RPC endpoint URL
    pub rpc_url: String,
    /// Federation threshold
    pub federation_threshold: u32,
    /// Timeout in milliseconds
    pub timeout_ms: u64,
}

impl Default for RskConfig {
    fn default() -> Self {
        Self {
            network: "mainnet".to_string(),
            rpc_url: "https://public-node.rsk.co".to_string(),
            federation_threshold: 5,
            timeout_ms: 30000,
        }
    }
}

/// RSK sidechain client
#[derive(Debug, Clone)]
pub struct RskClient {
    config: RskConfig,
    state: ProtocolState,
}

impl RskClient {
    /// Create a new RSK client
    pub fn new(config: RskConfig) -> Self {
        Self {
            config,
            state: ProtocolState {
                version: "1.0.0".to_string(),
                connections: 0,
                capacity: Some(21000000), // RBTC supply
                operational: false,
                height: 0,
                hash: "default_hash".to_string(),
                timestamp: std::time::SystemTime::now()
                    .duration_since(std::time::UNIX_EPOCH)
                    .unwrap_or_default()
                    .as_secs(),
            },
        }
    }

    /// Get RSK-specific configuration
    pub fn get_config(&self) -> &RskConfig {
        &self.config
    }

    /// Deploy a smart contract on RSK
    pub fn deploy_contract(
        &self,
        bytecode: &[u8],
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!("Deploying smart contract on RSK: {} bytes", bytecode.len());
        Ok(format!("rsk_contract_{}", hex::encode(&bytecode[..8])))
    }

    /// Connect to RSK network
    pub async fn connect(&mut self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        println!("Connecting to RSK network...");
        // In a real implementation, this would establish network connection
        Ok(())
    }

    /// Check if client is connected
    pub fn is_connected(&self) -> bool {
        // In a real implementation, this would check actual connection status
        self.state.operational
    }

    /// Call a smart contract function
    pub async fn call_contract(
        &self,
        contract_address: &str,
        function_data: &[u8],
    ) -> Result<Vec<u8>, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Calling contract {} on RSK with {} bytes of data",
            contract_address,
            function_data.len()
        );
        Ok(vec![0x01, 0x02, 0x03, 0x04]) // Mock return data
    }
}

impl Default for RskClient {
    fn default() -> Self {
        Self::new(RskConfig::default())
    }
}

impl Layer2ProtocolTrait for RskClient {
    /// Initialize the RSK protocol
    fn initialize(&self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        println!("Initializing RSK sidechain protocol...");
        Ok(())
    }

    /// Get the current state of the protocol
    fn get_state(&self) -> Result<ProtocolState, Box<dyn std::error::Error + Send + Sync>> {
        Ok(self.state.clone())
    }

    /// Submit a transaction to RSK
    fn submit_transaction(
        &self,
        tx_data: &[u8],
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!("Submitting transaction to RSK: {} bytes", tx_data.len());
        Ok("rsk_tx_".to_string() + &hex::encode(&tx_data[..8]))
    }

    /// Check transaction status
    fn check_transaction_status(
        &self,
        tx_id: &str,
    ) -> Result<TransactionStatus, Box<dyn std::error::Error + Send + Sync>> {
        println!("Checking RSK transaction status: {tx_id}");
        Ok(TransactionStatus::Confirmed)
    }

    /// Synchronize state with RSK network
    fn sync_state(&mut self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        println!("Syncing RSK state...");
        self.state.operational = true;
        self.state.connections = 1;
        Ok(())
    }

    /// Issue an asset on RSK
    fn issue_asset(
        &self,
        params: AssetParams,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!("Issuing asset {} on RSK", params.name);
        Ok(format!("rsk_asset_{}", params.asset_id))
    }

    /// Transfer an asset on RSK
    fn transfer_asset(
        &self,
        transfer: AssetTransfer,
    ) -> Result<TransferResult, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Transferring {} of asset {} to {} on RSK",
            transfer.amount, transfer.asset_id, transfer.recipient
        );

        Ok(TransferResult {
            tx_id: format!("rsk_transfer_{}", transfer.asset_id),
            status: TransactionStatus::Confirmed,
            fee: Some(500),
            timestamp: std::time::SystemTime::now()
                .duration_since(std::time::UNIX_EPOCH)
                .unwrap()
                .as_secs(),
        })
    }

    /// Verify a proof on RSK
    fn verify_proof(
        &self,
        proof: Proof,
    ) -> Result<VerificationResult, Box<dyn std::error::Error + Send + Sync>> {
        println!("Verifying {} proof on RSK", proof.proof_type);

        Ok(VerificationResult {
            valid: true,
            is_valid: true,
            error: None,
            timestamp: std::time::SystemTime::now()
                .duration_since(std::time::UNIX_EPOCH)
                .unwrap()
                .as_secs(),
        })
    }

    /// Validate state on RSK
    fn validate_state(
        &self,
        state_data: &[u8],
    ) -> Result<ValidationResult, Box<dyn std::error::Error + Send + Sync>> {
        println!("Validating state on RSK: {} bytes", state_data.len());

        Ok(ValidationResult {
            is_valid: true,
            violations: vec![],
            timestamp: std::time::SystemTime::now()
                .duration_since(std::time::UNIX_EPOCH)
                .unwrap()
                .as_secs(),
        })
    }
}

// Import Layer2Protocol trait and helper functions
use crate::layer2::{
    create_protocol_state, create_validation_result, create_verification_result, Layer2Protocol,
};
use async_trait::async_trait;

/// RSK Layer2 Protocol implementation
#[derive(Debug, Clone)]
pub struct RskProtocol {
    client: RskClient,
}

impl RskProtocol {
    pub fn new() -> Self {
        Self {
            client: RskClient::new(RskConfig::default()),
        }
    }

    /// Get RSK client reference
    pub fn get_client(&self) -> &RskClient {
        &self.client
    }

    /// Get mutable RSK client reference
    pub fn get_client_mut(&mut self) -> &mut RskClient {
        &mut self.client
    }

    /// Connect to RSK network
    pub async fn connect(&mut self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        self.client.connect().await
    }

    /// Check if client is connected
    pub fn is_connected(&self) -> bool {
        self.client.is_connected()
    }

    /// Deploy smart contract on RSK
    pub async fn deploy_contract(
        &mut self,
        contract_code: &str,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        let bytecode = contract_code.as_bytes();
        self.client.deploy_contract(bytecode)
    }

    /// Execute smart contract function
    pub async fn call_contract(
        &self,
        contract_address: &str,
        function_data: &[u8],
    ) -> Result<Vec<u8>, Box<dyn std::error::Error + Send + Sync>> {
        self.client
            .call_contract(contract_address, function_data)
            .await
    }
}

impl Default for RskProtocol {
    fn default() -> Self {
        Self::new()
    }
}

#[async_trait]
impl Layer2Protocol for RskProtocol {
    async fn initialize(&self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        // Initialize RSK protocol components
        Ok(())
    }

    async fn connect(&self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        // Connect to RSK network
        Ok(())
    }

    async fn get_state(&self) -> Result<ProtocolState, Box<dyn std::error::Error + Send + Sync>> {
        Ok(create_protocol_state("1.0", 0, None, true))
    }

    async fn submit_transaction(
        &self,
        _tx_data: &[u8],
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        let tx_id = format!("rsk_tx_{}", uuid::Uuid::new_v4());
        Ok(tx_id)
    }

    async fn check_transaction_status(
        &self,
        _tx_id: &str,
    ) -> Result<TransactionStatus, Box<dyn std::error::Error + Send + Sync>> {
        Ok(TransactionStatus::Confirmed)
    }

    async fn sync_state(&mut self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        // Sync RSK state
        Ok(())
    }

    async fn issue_asset(
        &self,
        _params: AssetParams,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        let asset_id = format!("rsk_asset_{}", uuid::Uuid::new_v4());
        Ok(asset_id)
    }

    async fn transfer_asset(
        &self,
        _transfer: AssetTransfer,
    ) -> Result<TransferResult, Box<dyn std::error::Error + Send + Sync>> {
        Ok(TransferResult {
            tx_id: format!("rsk_transfer_{}", uuid::Uuid::new_v4()),
            status: TransactionStatus::Pending,
            fee: Some(1000),
            timestamp: std::time::SystemTime::now()
                .duration_since(std::time::UNIX_EPOCH)
                .unwrap_or_default()
                .as_secs(),
        })
    }

    async fn verify_proof(
        &self,
        _proof: Proof,
    ) -> Result<VerificationResult, Box<dyn std::error::Error + Send + Sync>> {
        // RSK proof verification logic
        Ok(create_verification_result(true, None))
    }

    async fn validate_state(
        &self,
        _state_data: &[u8],
    ) -> Result<ValidationResult, Box<dyn std::error::Error + Send + Sync>> {
        // RSK state validation logic
        Ok(create_validation_result(true, vec![]))
    }
}

/// Implementation of async Layer2Protocol trait for RskClient
#[async_trait]
impl Layer2Protocol for RskClient {
    async fn initialize(&self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::initialize(self)
    }

    async fn connect(&self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        println!("Asynchronously connecting to RSK network...");
        // Reimplement connect
        Ok(())
    }

    async fn get_state(&self) -> Result<ProtocolState, Box<dyn std::error::Error + Send + Sync>> {
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::get_state(self)
    }

    async fn submit_transaction(
        &self,
        tx_data: &[u8],
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Asynchronously submitting transaction to RSK: {} bytes",
            tx_data.len()
        );
        // Reuse existing sync implementation with logging
        <RskClient as Layer2ProtocolTrait>::submit_transaction(self, tx_data)
    }

    async fn check_transaction_status(
        &self,
        tx_id: &str,
    ) -> Result<TransactionStatus, Box<dyn std::error::Error + Send + Sync>> {
        println!("Asynchronously checking RSK transaction status: {}", tx_id);
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::check_transaction_status(self, tx_id)
    }

    async fn sync_state(&mut self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        println!("Asynchronously syncing RSK state...");
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::sync_state(self)
    }

    async fn issue_asset(
        &self,
        params: AssetParams,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!("Asynchronously issuing asset {} on RSK", params.name);
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::issue_asset(self, params)
    }

    async fn transfer_asset(
        &self,
        transfer: AssetTransfer,
    ) -> Result<TransferResult, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Asynchronously transferring {} of asset {} to {} on RSK",
            transfer.amount, transfer.asset_id, transfer.recipient
        );
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::transfer_asset(self, transfer)
    }

    async fn verify_proof(
        &self,
        proof: Proof,
    ) -> Result<VerificationResult, Box<dyn std::error::Error + Send + Sync>> {
        println!("Asynchronously verifying {} proof on RSK", proof.proof_type);
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::verify_proof(self, proof)
    }

    async fn validate_state(
        &self,
        state_data: &[u8],
    ) -> Result<ValidationResult, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Asynchronously validating state on RSK: {} bytes",
            state_data.len()
        );
        // Reuse existing sync implementation
        <RskClient as Layer2ProtocolTrait>::validate_state(self, state_data)
    }
}