maple-runtime 0.1.1

//! Resonator Registry - manages persistent Resonator identities

use crate::config::RegistryConfig;
use crate::runtime_core::{ContinuityProof, ContinuityRecord};
use crate::types::*;
use dashmap::DashMap;

/// Registry of all Resonators with persistent identity
pub struct ResonatorRegistry {
    /// Active Resonators
    resonators: DashMap<ResonatorId, ResonatorMetadata>,

    /// Configuration
    #[allow(dead_code)]
    config: RegistryConfig,
}

impl ResonatorRegistry {
    pub fn new(config: &RegistryConfig) -> Self {
        Self {
            resonators: DashMap::new(),
            config: config.clone(),
        }
    }

    /// Create a persistent identity for a new Resonator
    pub async fn create_identity(
        &self,
        spec: &super::ResonatorIdentitySpec,
    ) -> Result<ResonatorId, RegistrationError> {
        let id = ResonatorId::new();

        let metadata = ResonatorMetadata {
            id,
            name: spec.name.clone(),
            metadata: spec.metadata.clone(),
            created_at: chrono::Utc::now(),
        };

        self.resonators.insert(id, metadata);

        Ok(id)
    }

    /// Verify continuity proof and retrieve record
    pub async fn verify_continuity(
        &self,
        _proof: &ContinuityProof,
    ) -> Result<ContinuityRecord, ResumeError> {
        // In a real implementation, this would:
        // 1. Verify cryptographic signature
        // 2. Check proof validity
        // 3. Load continuity record from storage

        // For now, placeholder
        Err(ResumeError::InvalidContinuityProof)
    }

    /// Persist all continuity records
    pub async fn persist_all_continuity(&self) -> Result<(), String> {
        // Placeholder: In real implementation, would persist to durable storage
        tracing::info!(
            "Persisting {} Resonator continuity records",
            self.resonators.len()
        );
        Ok(())
    }

    /// Get Resonator metadata
    pub fn get_metadata(&self, id: &ResonatorId) -> Option<ResonatorMetadata> {
        self.resonators.get(id).map(|r| r.clone())
    }

    /// Remove Resonator (for cleanup)
    pub fn remove(&self, id: &ResonatorId) {
        self.resonators.remove(id);
    }

    /// Count of active Resonators
    pub fn count(&self) -> usize {
        self.resonators.len()
    }
}

/// Metadata about a Resonator
#[derive(Debug, Clone)]
pub struct ResonatorMetadata {
    pub id: ResonatorId,
    pub name: Option<String>,
    pub metadata: std::collections::HashMap<String, String>,
    pub created_at: chrono::DateTime<chrono::Utc>,
}