ruvector-dag 0.1.0

//! QuDAG Network Client

use std::sync::Arc;
use tokio::sync::RwLock;

#[derive(Debug, Clone)]
pub struct QuDagConfig {
    pub endpoint: String,
    pub timeout_ms: u64,
    pub max_retries: usize,
    pub stake_amount: f64,
}

impl Default for QuDagConfig {
    fn default() -> Self {
        Self {
            endpoint: "https://qudag.network:8443".to_string(),
            timeout_ms: 5000,
            max_retries: 3,
            stake_amount: 0.0,
        }
    }
}

pub struct QuDagClient {
    #[allow(dead_code)]
    config: QuDagConfig,
    node_id: String,
    connected: Arc<RwLock<bool>>,
    // In real implementation, would have ML-DSA keypair
    #[allow(dead_code)]
    identity_key: Vec<u8>,
}

impl QuDagClient {
    pub fn new(config: QuDagConfig) -> Self {
        // Generate random node ID for now
        let node_id = format!("node_{}", rand::random::<u64>());

        Self {
            config,
            node_id,
            connected: Arc::new(RwLock::new(false)),
            identity_key: vec![0u8; 32], // Placeholder
        }
    }

    pub async fn connect(&self) -> Result<(), QuDagError> {
        // Simulate connection
        *self.connected.write().await = true;
        Ok(())
    }

    pub async fn disconnect(&self) {
        *self.connected.write().await = false;
    }

    pub async fn is_connected(&self) -> bool {
        *self.connected.read().await
    }

    pub fn node_id(&self) -> &str {
        &self.node_id
    }

    pub async fn propose_pattern(
        &self,
        _pattern: super::proposal::PatternProposal,
    ) -> Result<String, QuDagError> {
        if !self.is_connected().await {
            return Err(QuDagError::NotConnected);
        }

        // Generate proposal ID
        let proposal_id = format!("prop_{}", rand::random::<u64>());

        // In real implementation, would:
        // 1. Sign with ML-DSA
        // 2. Add differential privacy noise
        // 3. Submit to network

        Ok(proposal_id)
    }

    pub async fn get_proposal_status(
        &self,
        _proposal_id: &str,
    ) -> Result<super::proposal::ProposalStatus, QuDagError> {
        if !self.is_connected().await {
            return Err(QuDagError::NotConnected);
        }

        // Simulate status check
        Ok(super::proposal::ProposalStatus::Pending)
    }

    pub async fn sync_patterns(
        &self,
        _since_round: u64,
    ) -> Result<Vec<super::sync::SyncedPattern>, QuDagError> {
        if !self.is_connected().await {
            return Err(QuDagError::NotConnected);
        }

        // Return empty for now
        Ok(Vec::new())
    }

    pub async fn get_balance(&self) -> Result<f64, QuDagError> {
        if !self.is_connected().await {
            return Err(QuDagError::NotConnected);
        }

        Ok(0.0)
    }

    pub async fn stake(&self, amount: f64) -> Result<String, QuDagError> {
        if !self.is_connected().await {
            return Err(QuDagError::NotConnected);
        }

        if amount <= 0.0 {
            return Err(QuDagError::InvalidAmount);
        }

        // Return transaction hash
        Ok(format!("tx_{}", rand::random::<u64>()))
    }
}

#[derive(Debug, thiserror::Error)]
pub enum QuDagError {
    #[error("Not connected to QuDAG network")]
    NotConnected,
    #[error("Connection failed: {0}")]
    ConnectionFailed(String),
    #[error("Authentication failed")]
    AuthFailed,
    #[error("Invalid amount")]
    InvalidAmount,
    #[error("Proposal rejected: {0}")]
    ProposalRejected(String),
    #[error("Network error: {0}")]
    NetworkError(String),
    #[error("Timeout")]
    Timeout,
}