anya-core 1.2.0

use crate::layer2::{
    BobClient, Layer2ProtocolTrait, Layer2ProtocolType, LightningNetwork, LiquidModule, Proof,
    RskClient, StacksClient, StateChannel, TaprootAssetsProtocol,
};

/// Comprehensive Layer 2 integration manager
pub struct Layer2Manager {
    bob_client: Option<BobClient>,
    liquid_module: Option<LiquidModule>,
    rsk_client: Option<RskClient>,
    stacks_client: Option<StacksClient>,
    taproot_assets: Option<TaprootAssetsProtocol>,
    #[allow(dead_code)] // For future Lightning integration
    lightning_network: Option<LightningNetwork>,
    #[allow(dead_code)] // For future State Channel integration
    state_channels: Option<StateChannel>,
}

impl Default for Layer2Manager {
    fn default() -> Self {
        Self::new()
    }
}

impl Layer2Manager {
    /// Create a new Layer 2 manager with all protocols
    pub fn new() -> Self {
        Self {
            bob_client: None,
            liquid_module: None,
            rsk_client: None,
            stacks_client: None,
            taproot_assets: None,
            lightning_network: None,
            state_channels: None,
        }
    }

    /// Initialize all Layer 2 protocols
    pub fn initialize_all(&mut self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        // Initialize all protocols one by one
        // Using a separate scope for each one to avoid borrow checker issues

        // Initialize BOB Client
        self.bob_client = Some(BobClient::default());
        if let Some(client) = &mut self.bob_client {
            if let Err(e) = client.initialize() {
                eprintln!("Failed to initialize BobClient: {e}");
                return Err(e);
            }
            println!("BobClient initialized successfully");
        }

        // Initialize Liquid Module
        self.liquid_module = Some(LiquidModule::default());
        if let Some(module) = &mut self.liquid_module {
            if let Err(e) = module.initialize() {
                eprintln!("Failed to initialize LiquidModule: {e}");
                return Err(e);
            }
            println!("LiquidModule initialized successfully");
        }

        // Initialize RSK Client
        self.rsk_client = Some(RskClient::default());
        if let Some(client) = &mut self.rsk_client {
            if let Err(e) = client.initialize() {
                eprintln!("Failed to initialize RskClient: {e}");
                return Err(e);
            }
            println!("RskClient initialized successfully");
        }

        // Initialize Stacks Client
        self.stacks_client = Some(StacksClient::default());
        if let Some(client) = &mut self.stacks_client {
            if let Err(e) = client.initialize() {
                eprintln!("Failed to initialize StacksClient: {e}");
                return Err(e);
            }
            println!("StacksClient initialized successfully");
        }

        // Initialize Taproot Assets Protocol
        self.taproot_assets = Some(TaprootAssetsProtocol::default());
        if let Some(protocol) = &mut self.taproot_assets {
            if let Err(e) = protocol.initialize() {
                eprintln!("Failed to initialize TaprootAssetsProtocol: {e}");
                return Err(e);
            }
            println!("TaprootAssetsProtocol initialized successfully");
        }

        println!("All Layer 2 protocols initialized successfully");
        Ok(())
    }

    /// Initialize all Layer 2 protocols asynchronously
    pub async fn initialize_all_async(
        &mut self,
    ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
        // Initialize BOB Client
        self.bob_client = Some(BobClient::default());
        if let Some(client) = &self.bob_client {
            client.initialize()?; // No await needed for synchronous method
            println!("BobClient initialized asynchronously");
        }

        // Initialize Liquid Module
        self.liquid_module = Some(LiquidModule::default());
        if let Some(module) = &self.liquid_module {
            module.initialize()?; // No await needed for synchronous method
            println!("LiquidModule initialized asynchronously");
        }

        // Initialize RSK Client
        self.rsk_client = Some(RskClient::default());
        if let Some(client) = &self.rsk_client {
            client.initialize()?; // No await needed for synchronous method
            println!("RskClient initialized asynchronously");
        }

        // Initialize Stacks Client
        self.stacks_client = Some(StacksClient::default());
        if let Some(client) = &self.stacks_client {
            client.initialize()?; // No await needed for synchronous method
            println!("StacksClient initialized asynchronously");
        }

        // Initialize Taproot Assets Protocol
        self.taproot_assets = Some(TaprootAssetsProtocol::default());
        if let Some(protocol) = &self.taproot_assets {
            protocol.initialize()?; // No await needed for synchronous method
            println!("TaprootAssetsProtocol initialized asynchronously");
        }

        // Initialize Lightning Network
        self.lightning_network = Some(LightningNetwork::default());
        if let Some(network) = &self.lightning_network {
            network.initialize()?; // No await needed for synchronous method
            println!("LightningNetwork initialized asynchronously");
        }

        // Initialize State Channel
        self.state_channels = Some(StateChannel::default());
        if let Some(channel) = &self.state_channels {
            channel.initialize()?; // No await needed for synchronous method
            println!("StateChannel initialized asynchronously");
        }

        println!("All Layer 2 protocols initialized asynchronously");
        Ok(())
    }

    /// Get protocol by type
    pub fn get_protocol(
        &self,
        protocol_type: Layer2ProtocolType,
    ) -> Option<&dyn Layer2ProtocolTrait> {
        match protocol_type {
            Layer2ProtocolType::BOB => self
                .bob_client
                .as_ref()
                .map(|c| c as &dyn Layer2ProtocolTrait),
            Layer2ProtocolType::Liquid => self
                .liquid_module
                .as_ref()
                .map(|c| c as &dyn Layer2ProtocolTrait),
            Layer2ProtocolType::RSK => self
                .rsk_client
                .as_ref()
                .map(|c| c as &dyn Layer2ProtocolTrait),
            Layer2ProtocolType::Stacks => self
                .stacks_client
                .as_ref()
                .map(|c| c as &dyn Layer2ProtocolTrait),
            Layer2ProtocolType::TaprootAssets => self
                .taproot_assets
                .as_ref()
                .map(|c| c as &dyn Layer2ProtocolTrait),
            _ => None,
        }
    }

    /// Get protocol for async usage
    pub fn get_protocol_async(
        &self,
        protocol_type: Layer2ProtocolType,
    ) -> Option<&dyn crate::layer2::Layer2Protocol> {
        match protocol_type {
            Layer2ProtocolType::BOB => self
                .bob_client
                .as_ref()
                .map(|c| c as &dyn crate::layer2::Layer2Protocol),
            Layer2ProtocolType::Liquid => self
                .liquid_module
                .as_ref()
                .map(|c| c as &dyn crate::layer2::Layer2Protocol),
            Layer2ProtocolType::RSK => self
                .rsk_client
                .as_ref()
                .map(|c| c as &dyn crate::layer2::Layer2Protocol),
            Layer2ProtocolType::Stacks => self
                .stacks_client
                .as_ref()
                .map(|c| c as &dyn crate::layer2::Layer2Protocol),
            Layer2ProtocolType::TaprootAssets => self
                .taproot_assets
                .as_ref()
                .map(|c| c as &dyn crate::layer2::Layer2Protocol),
            Layer2ProtocolType::Lightning => self
                .lightning_network
                .as_ref()
                .map(|c| c as &dyn crate::layer2::Layer2Protocol),
            Layer2ProtocolType::StateChannels => self
                .state_channels
                .as_ref()
                .map(|c| c as &dyn crate::layer2::Layer2Protocol),
            _ => None,
        }
    }

    /// Cross-layer asset transfer
    pub fn cross_layer_transfer(
        &self,
        from_protocol: Layer2ProtocolType,
        to_protocol: Layer2ProtocolType,
        asset_id: &str,
        amount: u64,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!("Executing cross-layer transfer from {from_protocol:?} to {to_protocol:?}");

        let transfer_id = format!(
            "cross_{}_{}_{}_{}",
            protocol_name(from_protocol),
            protocol_name(to_protocol),
            asset_id,
            amount
        );

        Ok(transfer_id)
    }

    /// Execute cross-layer transfer asynchronously
    pub async fn cross_layer_transfer_async(
        &self,
        from_protocol: Layer2ProtocolType,
        to_protocol: Layer2ProtocolType,
        asset_id: &str,
        amount: u64,
    ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Asynchronously executing cross-layer transfer from {from_protocol:?} to {to_protocol:?}"
        );

        let source = self.get_protocol_async(from_protocol);
        let destination = self.get_protocol_async(to_protocol);

        if source.is_none() || destination.is_none() {
            return Err(Box::new(std::io::Error::new(
                std::io::ErrorKind::NotFound,
                "Source or destination protocol not found",
            )));
        }

        // In a real implementation, this would handle the cross-layer transfer
        // For now, we just simulate it
        let transfer_id = format!(
            "cross_{}_{}_{}_{}",
            protocol_name(from_protocol),
            protocol_name(to_protocol),
            asset_id,
            amount
        );

        Ok(transfer_id)
    }

    /// Verify cross-layer proof
    pub fn verify_cross_layer_proof(
        &self,
        proof: Proof,
        protocols: Vec<Layer2ProtocolType>,
    ) -> Result<bool, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Verifying cross-layer proof across {} protocols",
            protocols.len()
        );

        for protocol_type in protocols {
            if let Some(protocol) = self.get_protocol(protocol_type) {
                if !protocol.verify_proof(proof.clone())?.is_valid {
                    return Ok(false);
                }
            }
        }

        Ok(true)
    }

    /// Verify cross-layer proof asynchronously
    pub async fn verify_cross_layer_proof_async(
        &self,
        proof: Proof,
        protocols: Vec<Layer2ProtocolType>,
    ) -> Result<bool, Box<dyn std::error::Error + Send + Sync>> {
        println!(
            "Asynchronously verifying cross-layer proof across {} protocols",
            protocols.len()
        );

        for protocol_type in &protocols {
            if let Some(protocol) = self.get_protocol_async(*protocol_type) {
                let result = protocol.verify_proof(proof.clone()).await?;
                if !result.is_valid {
                    return Ok(false);
                }
            } else {
                return Err(Box::new(std::io::Error::new(
                    std::io::ErrorKind::NotFound,
                    format!("{protocol_type:?} protocol not found"),
                )));
            }
        }

        // All protocols validated the proof
        Ok(true)
    }
}

fn protocol_name(protocol: Layer2ProtocolType) -> &'static str {
    match protocol {
        Layer2ProtocolType::Lightning => "lightning",
        Layer2ProtocolType::StateChannels => "state_channels",
        Layer2ProtocolType::RGB => "rgb",
        Layer2ProtocolType::DLC => "dlc",
        Layer2ProtocolType::BOB => "bob",
        Layer2ProtocolType::Liquid => "liquid",
        Layer2ProtocolType::RSK => "rsk",
        Layer2ProtocolType::Stacks => "stacks",
        Layer2ProtocolType::TaprootAssets => "taproot_assets",
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_layer2_manager_initialization() {
        let mut manager = Layer2Manager::new();
        assert!(manager.initialize_all().is_ok());
    }

    #[test]
    fn test_all_protocols_available() {
        let mut manager = Layer2Manager::new();
        manager.initialize_all().unwrap();

        assert!(manager.get_protocol(Layer2ProtocolType::BOB).is_some());
        assert!(manager.get_protocol(Layer2ProtocolType::Liquid).is_some());
        assert!(manager.get_protocol(Layer2ProtocolType::RSK).is_some());
        assert!(manager.get_protocol(Layer2ProtocolType::Stacks).is_some());
        assert!(manager
            .get_protocol(Layer2ProtocolType::TaprootAssets)
            .is_some());
    }

    #[test]
    fn test_cross_layer_transfer() {
        let mut manager = Layer2Manager::new();
        manager.initialize_all().unwrap();

        let result = manager.cross_layer_transfer(
            Layer2ProtocolType::BOB,
            Layer2ProtocolType::Liquid,
            "test_asset",
            1000,
        );

        assert!(result.is_ok());
        let transfer_id = result.unwrap();
        assert!(transfer_id.contains("bob_liquid"));
    }
}