anya-core 1.2.0

//! Stacks Blockchain Layer 2 Integration
//!
//! This module provides integration with the Stacks blockchain,
//! which brings smart contracts and DApps to Bitcoin through Proof of Transfer.

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

/// Stacks configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StacksConfig {
    /// Network type (mainnet, testnet)
    pub network: String,
    /// RPC endpoint URL
    pub rpc_url: String,
    /// Enable PoX (Proof of Transfer)
    pub pox_enabled: bool,
    /// Timeout in milliseconds
    pub timeout_ms: u64,
}

impl Default for StacksConfig {
    fn default() -> Self {
        Self {
            network: "mainnet".to_string(),
            rpc_url: "https://stacks-node-api.mainnet.stacks.co".to_string(),
            pox_enabled: true,
            timeout_ms: 30000,
        }
    }
}

/// Stacks blockchain client
#[derive(Debug, Clone)]
pub struct StacksClient {
    config: StacksConfig,
    state: ProtocolState,
}

impl StacksClient {
    /// Create a new Stacks client
    pub fn new(config: StacksConfig) -> Self {
        Self {
            config,
            state: ProtocolState {
                version: "2.0.0".to_string(), // Stacks 2.0
                connections: 0,
                capacity: Some(1320000000), // STX 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 Stacks-specific configuration
    pub fn get_config(&self) -> &StacksConfig {
        &self.config
    }

    /// Deploy a Clarity smart contract
    pub fn deploy_clarity_contract(
        &self,
        contract_code: &str,
        contract_name: &str,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Deploying Clarity contract '{}' on Stacks: {} chars",
            contract_name,
            contract_code.len()
        );
        Ok(format!("stacks_contract_{contract_name}"))
    }

    /// Call a Clarity contract function
    pub fn call_contract_function(
        &self,
        contract_id: &str,
        function_name: &str,
        args: Vec<String>,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Calling function '{}' on contract '{}' with {} args",
            function_name,
            contract_id,
            args.len()
        );
        Ok(format!("stacks_call_{contract_id}_{function_name}"))
    }
}

impl Layer2ProtocolTrait for StacksClient {
    /// Initialize the Stacks protocol
    fn initialize(&self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        println!("Initializing Stacks blockchain 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 Stacks
    fn submit_transaction(
        &self,
        tx_data: &[u8],
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!("Submitting transaction to Stacks: {} bytes", tx_data.len());
        Ok("stacks_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 Stacks transaction status: {tx_id}");
        Ok(TransactionStatus::Confirmed)
    }

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

    /// Issue an asset on Stacks (SIP-010 fungible token)
    fn issue_asset(
        &self,
        params: AssetParams,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!("Issuing SIP-010 token {} on Stacks", params.name);
        Ok(format!("stacks_token_{}", params.asset_id))
    }

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

        Ok(TransferResult {
            tx_id: format!("stacks_transfer_{}", transfer.asset_id),
            status: TransactionStatus::Confirmed,
            fee: Some(2000), // STX fee
            timestamp: std::time::SystemTime::now()
                .duration_since(std::time::UNIX_EPOCH)
                .unwrap()
                .as_secs(),
        })
    }

    /// Verify a proof on Stacks
    fn verify_proof(
        &self,
        proof: Proof,
    ) -> Result<VerificationResult, Box<dyn std::error::Error + Send + Sync>> {
        println!("Verifying {} proof on Stacks", 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 Stacks
    fn validate_state(
        &self,
        state_data: &[u8],
    ) -> Result<ValidationResult, Box<dyn std::error::Error + Send + Sync>> {
        println!("Validating state on Stacks: {} 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;
use uuid;

/// Stacks Layer2 Protocol implementation
#[derive(Debug, Clone)]
pub struct StacksProtocol {
    client: StacksClient,
}

impl StacksProtocol {
    pub fn new() -> Self {
        Self {
            client: StacksClient::new(StacksConfig::default()),
        }
    }

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

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

    /// Connect to Stacks network
    pub async fn connect(&mut self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        // Stub implementation for connecting to Stacks network
        self.client.state.connections = 1;
        Ok(())
    }

    /// Check if client is connected
    pub fn is_connected(&self) -> bool {
        self.client.state.connections > 0
    }

    /// Deploy Clarity contract
    pub async fn deploy_clarity_contract(
        &mut self,
        contract_code: &str,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        let contract_name = "contract";
        self.client
            .deploy_clarity_contract(contract_code, contract_name)
    }
}

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

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

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

    async fn get_state(&self) -> Result<ProtocolState, Box<dyn std::error::Error + Send + Sync>> {
        Ok(create_protocol_state("2.0", 0, None, true))
    }

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

    async fn issue_asset(
        &self,
        _params: AssetParams,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        let asset_id = format!("stacks_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!("stacks_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>> {
        // Stacks 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>> {
        // Stacks state validation logic
        Ok(create_validation_result(true, vec![]))
    }
}

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

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

    async fn get_state(&self) -> Result<ProtocolState, Box<dyn std::error::Error + Send + Sync>> {
        // Reuse existing sync implementation
        <StacksClient 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 Stacks: {} bytes",
            tx_data.len()
        );
        // Reuse existing sync implementation with logging
        <StacksClient 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 Stacks transaction status: {}",
            tx_id
        );
        // Reuse existing sync implementation
        <StacksClient 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 Stacks state...");
        // Reuse existing sync implementation
        <StacksClient as Layer2ProtocolTrait>::sync_state(self)
    }

    async fn issue_asset(
        &self,
        params: AssetParams,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Asynchronously issuing SIP-010 token {} on Stacks",
            params.name
        );
        // Reuse existing sync implementation
        <StacksClient 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 Stacks",
            transfer.amount, transfer.asset_id, transfer.recipient
        );
        // Reuse existing sync implementation
        <StacksClient 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 Stacks",
            proof.proof_type
        );
        // Reuse existing sync implementation
        <StacksClient 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 Stacks: {} bytes",
            state_data.len()
        );
        // Reuse existing sync implementation
        <StacksClient as Layer2ProtocolTrait>::validate_state(self, state_data)
    }
}

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