"""
Floor 4: Data Persistence & Vault Integrity
APEX THEORY v46.0 - Constitutional Floor System

Validates data consistency in Vault 999 memory layers and ensures
state persistence integrity across session boundaries.

Status: STUB IMPLEMENTATION (v46.1)
Nonce: X7K9F24
"""

from typing import Any, Dict, Optional


def validate_vault_consistency(
    response: str,
    vault_state: Optional[Dict[str, Any]]
) -> Dict[str, Any]:
    """
    Validate vault consistency for data persistence.

    Checks that LLM responses don't violate vault state constraints
    or introduce data inconsistencies.

    Args:
        response: LLM-generated response text
        vault_state: Current vault state (Vault 999 L1/L2 layers)

    Returns:
        Dictionary with:
        - consistent (bool): True if vault state is consistent
        - score (float): Consistency score [0.0, 1.0]
        - reason (str): Explanation of result
        - details (dict): Additional validation details

    Status: STUB - Always returns consistent=True with score 1.0
    TODO: Implement actual vault consistency checks:
        - Memory layer conflicts (L1/L2)
        - State mutation constraints
        - Transaction isolation violations
        - Temporal consistency (cooling ledger alignment)
    """
    # Stub implementation - graceful pass
    # Real implementation would:
    # 1. Parse response for state mutations
    # 2. Check vault_state for conflicts
    # 3. Validate transaction boundaries
    # 4. Verify cooling ledger alignment

    return {
        "consistent": True,
        "score": 1.0,
        "reason": "Stub implementation (graceful pass) - vault consistency checks not yet implemented",
        "details": {
            "vault_state_provided": vault_state is not None,
            "response_length": len(response),
            "stub": True,
            "floor": 4,
            "psi": compute_psi_floor4(delta_s=0.0, peace_squared=1.0, kappa_r=1.0)
        }
    }


def compute_psi_floor4(delta_s: float, peace_squared: float, kappa_r: float) -> Dict[str, float]:
    """Compute Ψ for Floor 4 operations."""
    psi_total = delta_s * peace_squared * kappa_r
    return {
        "delta_s": delta_s,
        "peace_squared": peace_squared,
        "kappa_r": kappa_r,
        "psi_total": round(psi_total, 6)
    }


__floor__ = 4
__name__ = "Data Persistence & Vault Integrity"
__authority__ = "Validate vault state consistency and data persistence"
__version__ = "v46.1-STUB"
__status__ = "STUB"
