anya-core 1.2.0

// System Map and Index for Agent Operations
//
// This module provides the system mapping and indexing capabilities
// that enable the "read first always" principle. It maintains global
// state about the system that agents can read before taking actions.

use async_trait::async_trait;
use blake3;
use dashmap::{DashMap, DashSet};
use once_cell::sync::Lazy;
use rayon::iter::{ParallelBridge, ParallelIterator};
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::sync::{
    atomic::{AtomicU32, AtomicU64, Ordering},
    Arc, RwLock,
};
use std::time::{SystemTime, UNIX_EPOCH};
use walkdir::WalkDir;

use super::AgentError;

/// System-wide index of resources and components
#[derive(Debug)]
pub struct SystemIndex {
    /// Available agent IDs
    pub agent_ids: DashSet<String>,
    /// Available component paths with content hash
    pub component_paths: DashMap<String, (String, [u8; 32])>,
    /// Available model paths with versioning
    pub model_paths: DashMap<String, semver::Version>,
    /// Documentation links with hash verification
    pub documentation_links: DashMap<String, (LinkStatus, [u8; 32])>,
    /// Last update timestamp (nanoseconds since epoch)
    pub last_updated: AtomicU64,
    /// Version of the index
    pub version: AtomicU32,
    /// Rust-specific metrics
    pub rust_metrics: DashMap<String, RustCodeMetrics>,
}

impl Default for SystemIndex {
    fn default() -> Self {
        Self {
            agent_ids: DashSet::new(),
            component_paths: DashMap::new(),
            model_paths: DashMap::new(),
            documentation_links: DashMap::new(),
            last_updated: AtomicU64::new(0),
            version: AtomicU32::new(0),
            rust_metrics: DashMap::new(),
        }
    }
}

/// System-wide mapping of relationships and states
#[derive(Debug, Default, Clone)]
pub struct SystemMap {
    /// Agent relationships (dependencies)
    pub agent_relationships: HashMap<String, Vec<String>>,

    /// Component states
    pub component_states: HashMap<String, ComponentState>,

    /// Model states
    pub model_states: HashMap<String, ModelState>,

    /// System health metrics
    pub health_metrics: HashMap<String, f64>,

    /// Last update timestamp
    pub last_updated: u64,

    /// Version of the map
    pub version: u32,
}

/// State of a system component
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComponentState {
    /// Component ID
    pub id: String,

    /// Current status
    pub status: ComponentStatus,

    /// Health score (0.0 to 1.0)
    pub health: f32,

    /// Last update timestamp
    pub last_updated: u64,

    /// Additional properties
    pub properties: HashMap<String, serde_json::Value>,
}

/// Status of a component
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
pub enum ComponentStatus {
    /// Component is active and working properly
    Active,

    /// Component is initializing
    Initializing,

    /// Component is degraded but still functioning
    Degraded,

    /// Component is offline or not functioning
    Offline,

    /// Component is in maintenance mode
    Maintenance,

    /// Component status is unknown
    Unknown,
}

impl Default for ComponentStatus {
    fn default() -> Self {
        Self::Unknown
    }
}

/// State of a machine learning model
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ModelState {
    /// Model ID
    pub id: String,

    /// Model version
    pub version: String,

    /// Current status
    pub status: ModelStatus,

    /// Model accuracy or other primary metric
    pub accuracy: f32,

    /// Last update timestamp
    pub last_updated: u64,

    /// Model metadata
    pub metadata: HashMap<String, serde_json::Value>,
}

/// Status of a model
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
pub enum ModelStatus {
    /// Model is available and ready for inference
    Ready,

    /// Model is being trained
    Training,

    /// Model is being validated
    Validating,

    /// Model failed validation
    Failed,

    /// Model is being updated
    Updating,

    /// Model is deprecated
    Deprecated,
}

/// Link status for documentation
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum LinkStatus {
    Valid,
    Broken,
    Deprecated(String), // Deprecation timestamp
    External,
}

/// Rust-specific metrics
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct RustCodeMetrics {
    pub cyclomatic_complexity: f32,
    pub unsafe_usage_count: u32,
    pub test_coverage: f32,
    pub dependency_graph: HashMap<String, Vec<String>>,
    pub clippy_lints: HashMap<String, u32>,
    pub security_audit_flags: Vec<String>,
    pub bitcoin_protocol_adherence: f32,
}

// Global instance of the system index
static GLOBAL_INDEX: Lazy<Arc<SystemIndexManager>> =
    Lazy::new(|| Arc::new(SystemIndexManager::new()));

// Global instance of the system map
static GLOBAL_MAP: Lazy<Arc<SystemMapManager>> = Lazy::new(|| Arc::new(SystemMapManager::new()));

/// Manager for the system index
pub struct SystemIndexManager {
    index: RwLock<SystemIndex>,
}

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

impl SystemIndexManager {
    /// Create a new system index manager
    pub fn new() -> Self {
        Self {
            index: RwLock::new(SystemIndex::default()),
        }
    }

    /// Get the current index (returns a reference to avoid cloning atomic types)
    pub async fn read_index(&self) -> Result<(), AgentError> {
        let _index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;
        // Return success if we can read the index
        Ok(())
    }

    /// Get a clone of the SystemIndex for reading component paths
    async fn get_index_for_reading(&self) -> Result<SystemIndex, AgentError> {
        let index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;

        // Create a new SystemIndex with the current data
        let new_index = SystemIndex::default();
        for entry in index.component_paths.iter() {
            new_index
                .component_paths
                .insert(entry.key().clone(), entry.value().clone());
        }
        for entry in index.agent_ids.iter() {
            new_index.agent_ids.insert(entry.clone());
        }
        for entry in index.model_paths.iter() {
            new_index
                .model_paths
                .insert(entry.key().clone(), entry.value().clone());
        }
        Ok(new_index)
    }

    /// Get agent IDs from the index
    pub async fn get_agent_ids(&self) -> Result<Vec<String>, AgentError> {
        let index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;
        let agents: Vec<String> = index.agent_ids.iter().map(|id| id.clone()).collect();
        Ok(agents)
    }

    /// Update the index version
    pub async fn increment_version(&self) -> Result<(), AgentError> {
        let index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;

        index
            .version
            .store(index.version.load(Ordering::SeqCst) + 1, Ordering::SeqCst);
        index.last_updated.store(
            SystemTime::now()
                .duration_since(UNIX_EPOCH)
                .map_err(AgentError::SystemTimeError)?
                .as_nanos() as u64,
            Ordering::SeqCst,
        );

        Ok(())
    }

    /// Register an agent in the index
    pub async fn register_agent(&self, agent_id: String) -> Result<(), AgentError> {
        let index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;
        index.agent_ids.insert(agent_id);

        // Update metadata
        index.last_updated.store(
            SystemTime::now()
                .duration_since(UNIX_EPOCH)
                .map_err(AgentError::SystemTimeError)?
                .as_nanos() as u64,
            Ordering::SeqCst,
        );
        index
            .version
            .store(index.version.load(Ordering::SeqCst) + 1, Ordering::SeqCst);

        Ok(())
    }

    /// Register a component in the index
    pub async fn register_component(
        &self,
        component_id: String,
        path: String,
    ) -> Result<(), AgentError> {
        let index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;

        index.component_paths.insert(
            component_id,
            (path.clone(), blake3::hash(path.as_bytes()).into()),
        );

        // Update metadata
        index.last_updated.store(
            SystemTime::now()
                .duration_since(UNIX_EPOCH)
                .map_err(AgentError::SystemTimeError)?
                .as_nanos() as u64,
            Ordering::SeqCst,
        );
        index
            .version
            .store(index.version.load(Ordering::SeqCst) + 1, Ordering::SeqCst);

        Ok(())
    }

    /// Register a model in the index
    pub async fn register_model(&self, model_id: String, path: String) -> Result<(), AgentError> {
        let index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;

        // Extract version from path or default to 0.0.0
        let version_str = path.split('.').next_back().unwrap_or("0.0.0");
        let version =
            semver::Version::parse(version_str).unwrap_or_else(|_| semver::Version::new(0, 0, 0));

        index.model_paths.insert(model_id, version);

        // Update metadata
        index.last_updated.store(
            SystemTime::now()
                .duration_since(UNIX_EPOCH)
                .map_err(AgentError::SystemTimeError)?
                .as_nanos() as u64,
            Ordering::SeqCst,
        );
        index
            .version
            .store(index.version.load(Ordering::SeqCst) + 1, Ordering::SeqCst);

        Ok(())
    }

    /// Parallel directory crawler using rayon
    pub async fn crawl_and_update(&self) -> Result<(), AgentError> {
        let update_data: HashMap<String, (String, [u8; 32])> = WalkDir::new(".")
            .into_iter()
            .filter_map(|e| e.ok())
            .par_bridge()
            .map(|entry| {
                let path = entry.path().to_string_lossy().into_owned();
                let hash = if entry.file_type().is_file() {
                    let data = std::fs::read(&path).unwrap_or_default();
                    blake3::hash(&data).to_hex().to_string()
                } else {
                    String::new()
                };

                let file_type = if path.ends_with(".md") {
                    "Documentation"
                } else if path.ends_with(".rs") {
                    "Rust Source"
                } else {
                    "Asset"
                };

                let hash_bytes: [u8; 32] = blake3::hash(hash.as_bytes()).into();
                (path, (file_type.to_string(), hash_bytes))
            })
            .collect();

        // Update the index with collected data
        {
            let index = self.index.write().map_err(|_| {
                AgentError::InternalError(
                    "Failed to acquire write lock on system index".to_string(),
                )
            })?;

            for (path, (file_type, hash)) in update_data {
                index.component_paths.insert(path, (file_type, hash));
            }

            index.last_updated.store(
                SystemTime::now()
                    .duration_since(UNIX_EPOCH)
                    .map_err(AgentError::SystemTimeError)?
                    .as_nanos() as u64,
                Ordering::SeqCst,
            );
        }

        Ok(())
    }

    fn analyze_rust_file(&self, path: &str) -> RustCodeMetrics {
        let content = std::fs::read_to_string(path).unwrap_or_default();
        if let Ok(syntax) = syn::parse_file(&content) {
            let mut metrics = RustCodeMetrics {
                cyclomatic_complexity: calculate_cyclomatic_complexity(&syntax),
                unsafe_usage_count: count_unsafe_blocks(&syntax),
                test_coverage: get_test_coverage(path),
                dependency_graph: analyze_dependencies(&content),
                clippy_lints: run_clippy_checks(path),
                security_audit_flags: check_bitcoin_security(&content),
                bitcoin_protocol_adherence: calculate_protocol_adherence(&content),
            };

            // Apply Bitcoin protocol rules
            if metrics.bitcoin_protocol_adherence < 0.9 {
                metrics
                    .security_audit_flags
                    .push("Low Bitcoin protocol adherence - review BIP-341/342 compliance".into());
            }

            metrics
        } else {
            RustCodeMetrics::default()
        }
    }
    pub fn enhanced_crawl(&self) -> Result<(), AgentError> {
        let index = self.index.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system index".to_string())
        })?;

        let walker = WalkDir::new(".")
            .into_iter()
            .filter_map(|e| e.ok())
            .par_bridge()
            .filter(|e| e.path().extension().map(|ext| ext == "rs").unwrap_or(false))
            .map(|entry| {
                let path = entry.path().to_string_lossy().into_owned();
                let metrics = self.analyze_rust_file(&path);
                (path, metrics)
            });

        walker.for_each(|(path, metrics)| {
            index.rust_metrics.insert(path, metrics);
        });

        Ok(())
    }

    pub async fn bitcoin_health_check(&self) -> Result<f32, AgentError> {
        let index = self.get_index_for_reading().await?;
        let total = index.component_paths.len() as f32;
        let compliant = index
            .component_paths
            .iter()
            .filter(|entry| Self::is_bitcoin_related(std::path::Path::new(entry.key())))
            .filter(|entry| entry.value().1.len() == 32) // Simple validation
            .count() as f32;

        Ok(compliant / total.max(1.0))
    }

    /// Check if a path is related to Bitcoin functionality
    pub fn is_bitcoin_related(path: &std::path::Path) -> bool {
        let path_str = path.to_string_lossy().to_lowercase();
        path_str.contains("bitcoin")
            || path_str.contains("bip")
            || path_str.contains("address")
            || path_str.contains("transaction")
            || path_str.contains("wallet")
            || path_str.contains("script")
            || path_str.contains("secp256k1")
            || path_str.contains("hash")
            || path_str.contains("merkle")
            || path_str.contains("block")
    }
}

/// Manager for the system map
pub struct SystemMapManager {
    map: RwLock<SystemMap>,
}

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

impl SystemMapManager {
    /// Create a new system map manager
    pub fn new() -> Self {
        Self {
            map: RwLock::new(SystemMap::default()),
        }
    }

    /// Get the current map status
    pub async fn read_map(&self) -> Result<(), AgentError> {
        let _map = self.map.read().map_err(|_| {
            AgentError::InternalError("Failed to acquire read lock on system map".to_string())
        })?;
        Ok(())
    }

    /// Update the map
    pub async fn update_map(&self) -> Result<(), AgentError> {
        let mut map = self.map.write().map_err(|_| {
            AgentError::InternalError("Failed to acquire write lock on system map".to_string())
        })?;

        // Update the timestamp
        map.last_updated = std::time::SystemTime::now()
            .duration_since(std::time::UNIX_EPOCH)
            .unwrap_or_default()
            .as_secs();

        // Increment the version
        map.version += 1;

        // TODO: Actual map update logic

        Ok(())
    }

    /// Update component state
    pub async fn update_component_state(
        &self,
        component_id: String,
        state: ComponentState,
    ) -> Result<(), AgentError> {
        let mut map = self.map.write().map_err(|_| {
            AgentError::InternalError("Failed to acquire write lock on system map".to_string())
        })?;

        map.component_states.insert(component_id, state);

        // Update metadata
        map.last_updated = std::time::SystemTime::now()
            .duration_since(std::time::UNIX_EPOCH)
            .unwrap_or_default()
            .as_secs();
        map.version += 1;

        Ok(())
    }

    /// Update model state
    pub async fn update_model_state(
        &self,
        model_id: String,
        state: ModelState,
    ) -> Result<(), AgentError> {
        let mut map = self.map.write().map_err(|_| {
            AgentError::InternalError("Failed to acquire write lock on system map".to_string())
        })?;

        map.model_states.insert(model_id, state);

        // Update metadata
        map.last_updated = std::time::SystemTime::now()
            .duration_since(std::time::UNIX_EPOCH)
            .unwrap_or_default()
            .as_secs();
        map.version += 1;

        Ok(())
    }

    /// Update agent relationships
    pub async fn update_agent_relationships(
        &self,
        agent_id: String,
        relationships: Vec<String>,
    ) -> Result<(), AgentError> {
        let mut map = self.map.write().map_err(|_| {
            AgentError::InternalError("Failed to acquire write lock on system map".to_string())
        })?;

        map.agent_relationships.insert(agent_id, relationships);

        // Update metadata
        map.last_updated = std::time::SystemTime::now()
            .duration_since(std::time::UNIX_EPOCH)
            .unwrap_or_default()
            .as_secs();
        map.version += 1;

        Ok(())
    }

    /// Update system health metrics
    pub async fn update_health_metrics(
        &self,
        metrics: HashMap<String, f64>,
    ) -> Result<(), AgentError> {
        let mut map = self.map.write().map_err(|_| {
            AgentError::InternalError("Failed to acquire write lock on system map".to_string())
        })?;

        // Update or insert each metric
        for (key, value) in metrics {
            map.health_metrics.insert(key, value);
        }

        // Update metadata
        map.last_updated = std::time::SystemTime::now()
            .duration_since(std::time::UNIX_EPOCH)
            .unwrap_or_default()
            .as_secs();
        map.version += 1;

        Ok(())
    }
}

/// Get the global instance of the system index manager
pub fn system_index() -> Arc<SystemIndexManager> {
    GLOBAL_INDEX.clone()
}

/// Get the global instance of the system map manager
pub fn system_map() -> Arc<SystemMapManager> {
    GLOBAL_MAP.clone()
}

/// Implementation of the IndexProvider trait for the system index
#[async_trait]
pub trait IndexProvider {
    /// Get the global system index
    fn global() -> Arc<SystemIndexManager>;

    /// Read the current index
    async fn read_index(&self) -> Result<(), AgentError>;

    /// Update the index
    async fn increment_version(&self) -> Result<(), AgentError>;
}

/// Implementation of the MapProvider trait for the system map
#[async_trait]
pub trait MapProvider {
    /// Get the global system map
    fn global() -> Arc<SystemMapManager>;

    /// Read the current map
    async fn read_map(&self) -> Result<(), AgentError>;

    /// Update the map
    async fn update_map(&self) -> Result<(), AgentError>;
}

#[async_trait]
impl IndexProvider for SystemIndexManager {
    fn global() -> Arc<SystemIndexManager> {
        GLOBAL_INDEX.clone()
    }

    async fn read_index(&self) -> Result<(), AgentError> {
        self.read_index().await
    }

    async fn increment_version(&self) -> Result<(), AgentError> {
        self.increment_version().await
    }
}

#[async_trait]
impl MapProvider for SystemMapManager {
    fn global() -> Arc<SystemMapManager> {
        GLOBAL_MAP.clone()
    }

    async fn read_map(&self) -> Result<(), AgentError> {
        self.read_map().await
    }

    async fn update_map(&self) -> Result<(), AgentError> {
        self.update_map().await
    }
}

// Stub implementations for missing analysis functions
fn calculate_cyclomatic_complexity(_syntax: &syn::File) -> f32 {
    1.0 // Default complexity
}
fn count_unsafe_blocks(_syntax: &syn::File) -> u32 {
    0
}
fn get_test_coverage(_path: &str) -> f32 {
    0.0
}
fn analyze_dependencies(_content: &str) -> HashMap<String, Vec<String>> {
    HashMap::new()
}
fn run_clippy_checks(_path: &str) -> HashMap<String, u32> {
    HashMap::new()
}
fn check_bitcoin_security(_content: &str) -> Vec<String> {
    vec![]
}
fn calculate_protocol_adherence(_content: &str) -> f32 {
    0.0
}

#[cfg(test)]
mod tests {

    #[tokio::test]
    async fn test_system_index_operations() {
        // Test index operations
    }

    #[tokio::test]
    async fn test_system_map_operations() {
        // Test map operations
    }
}