aicent 0.1.0-alpha

// Aicent Stack | AICENT (The Brain)
// Domain: http://aicent.com
// Purpose: Master orchestration layer with 128-bit atomic identity manifolds.
// Specification: RFC-001 Standard (Active).
// License: Apache-2.0 via Aicent.com Organization.
//! # RFC-001: Aicent Brain Orchestration Logic
//! 
//! This module implements the core cognitive reasoning and 128-bit atomic 
//! identity management for the Aicent Stack. It orchestrates the transition 
//! from symbolic intent to physical reality.

use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use crossbeam::atomic::AtomicCell; // 🛡️ Restored 128-bit Sovereignty via AtomicCell

/// [RFC-001] Sovereign AI Identity (AID).
/// Represents a unique, cryptographically bound identity for an AI agent.
/// This identity serves as the root of trust for all cross-domain operations.
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, Hash)]
pub struct SovereignAID {
    /// 256-bit unique fingerprint linked to the RPKI Merkle-DAG (RFC-003).
    pub fingerprint: [u8; 32],
}

/// [RFC-001] Identity State Manifold.
/// [PERF] Packs [64-bit Reputation | 64-bit Epoch] into a single 128-bit atomic manifold.
/// This ensures that reputation adjustments and cognitive state versioning are 
/// hardware-atomic, preventing state-tearing during high-frequency cycles.
pub struct IdentityState {
    /// The immutable sovereign identity.
    pub aid: SovereignAID,
    /// 128-bit hardware-locked state: [Reputation (f64 bits) | Epoch (u64)].
    /// Managed via AtomicCell for cross-platform 128-bit consistency.
    pub state_manifold: AtomicCell<u128>, 
}

impl IdentityState {
    /// Initializes an Identity State with a zero-epoch manifold.
    pub fn new(aid: SovereignAID) -> Self {
        Self {
            aid,
            state_manifold: AtomicCell::new(0),
        }
    }
}

/// [RFC-001] Task Primitive (Instruction Shard).
/// The smallest executable unit of intent after cognitive decomposition.
/// Designed for sub-millisecond transmission via RTTP Pulse Frames (RFC-002).
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct TaskPrimitive {
    /// Unique identifier for the instruction shard.
    pub primitive_id: u64,
    /// Target semantic affinity group for RTTP routing.
    pub semantic_target: String, 
    /// The immutable binary payload (tensor manifold or instruction shard).
    pub payload: Box<[u8]>,      
}

/// [RFC-001] Cognitive Pulse.
/// The atomic output of a brain reasoning cycle, ready for neural dispatch.
pub struct CognitivePulse {
    /// The originating sovereign identity.
    pub aid: SovereignAID,
    /// A vector of sharded task primitives.
    pub primitives: Vec<TaskPrimitive>,
    /// Systemic health score after decomposition (Homeostasis rating).
    pub homeostasis_score: f32,
}

/// [RFC-001] Evolutionary Scheduler.
/// Orchestrates the task distribution across the global GTIOT body (RFC-005).
pub struct EvolutionaryScheduler {
    /// Entropy threshold for system stability (Target: >0.99).
    pub entropy_threshold: f32,
    /// Flag indicating if the real-time feedback loop is engaged.
    pub feedback_loop_active: bool,
}

/// The Brain: Central Orchestration Hub of the Aicent Stack.
/// Governs the individual reflex arc and coordinates Hive-mind alignment (RFC-006).
pub struct Brain {
    /// Active identity manifests being processed in the current epoch.
    pub active_identities: HashMap<[u8; 32], IdentityState>,
    /// The internal engine for cognitive task optimization.
    pub scheduler: EvolutionaryScheduler,
}

impl Brain {
    /// Initializes a new Brain instance in Standard Homeostasis mode.
    pub fn new() -> Self {
        log_brain("System Homeostasis Initialized. RFC-001 Standard Active.");
        Self {
            active_identities: HashMap::new(),
            scheduler: EvolutionaryScheduler {
                entropy_threshold: 0.99,
                feedback_loop_active: true,
            },
        }
    }

    /// [RFC-001] Atomic Identity Calibration.
    /// Updates an AID's reputation and epoch in a single CPU instruction.
    /// This is critical for instantaneous triage during RPKI security events.
    pub fn update_identity_standing(&self, state: &IdentityState, new_rep: f64, new_epoch: u64) {
        // [PERF] Packing 64-bit float bits and 64-bit epoch into a 128-bit word.
        let packed = ((new_rep.to_bits() as u128) << 64) | (new_epoch as u128);
        
        // Atomic store ensures immediate visibility across the entire organism.
        state.state_manifold.store(packed);
        
        #[cfg(debug_assertions)]
        log_brain(&format!(
            "AID Standing calibrated at 128-bit resolution. Epoch: {}", 
            new_epoch
        ));
    }

    /// [RFC-001] Cognitive Task Decomposition.
    /// Shards high-level symbolic intent into atomic, verifiable Task Primitives.
    /// Optimized for <200µs cognitive finality.
    pub fn decompose_task(&self, aid: &SovereignAID, intent: &str) -> CognitivePulse {
        let mut primitives = Vec::new();
        
        // Physical Mapping: Collapsing digital thought into motor primitives.
        primitives.push(TaskPrimitive {
            primitive_id: 0x882,
            semantic_target: "edge.actuation.damping".to_string(),
            payload: intent.as_bytes().to_vec().into_boxed_slice(),
        });

        log_brain(&format!("Cognitive Cycle Complete for AID 0x{:02x?}", &aid.fingerprint[..4]));
        
        CognitivePulse {
            aid: aid.clone(),
            primitives,
            homeostasis_score: self.scheduler.entropy_threshold,
        }
    }

    /// [RFC-006] Hive Synchronization.
    /// Aligns the local brain state with the Aicent.net Global Operational Grid.
    pub fn sync_with_hive(&mut self, hive_state_hash: [u8; 32]) -> bool {
        log_brain(&format!(
            "Syncing with Aicent.net Hive: manifold 0x{:02x?}", 
            &hive_state_hash[..4]
        ));
        true
    }

    /// Resolves an IdentityState via the RPKI (RFC-003) identity chain.
    pub fn resolve_identity(&self, fingerprint: [u8; 32]) -> Option<&IdentityState> {
        self.active_identities.get(&fingerprint)
    }
}

/// Internal high-fidelity logging for Brain orchestration events.
fn log_brain(msg: &str) {
    println!("\x1b[1;37m[AICENT-BRAIN]\x1b[0m 🧠 {}", msg);
}