"""
arifOS MCP Audit Tool - Retrieve audit/ledger data.

STUB IMPLEMENTATION: Returns placeholder data for now.
Full implementation will access the cooling ledger in a future sprint.
"""

from __future__ import annotations

from ..models import AuditRequest, AuditResponse, AuditEntry


def arifos_audit(request: AuditRequest) -> AuditResponse:
    """
    Retrieve audit/ledger data for a user.

    STUB: Full implementation coming in future sprint.
    Will read from cooling_ledger/L1_cooling_ledger.jsonl.

    Args:
        request: AuditRequest with user_id and days

    Returns:
        AuditResponse with entries (currently empty)
    """
    # TODO: Implement actual ledger retrieval
    # This would:
    # 1. Read from cooling_ledger/L1_cooling_ledger.jsonl
    # 2. Filter by user_id and date range
    # 3. Return matching entries

    # For now, return stub response
    return AuditResponse(
        entries=[],
        total=0,
        status="not_implemented",
        note=(
            f"Audit for user '{request.user_id}' over {request.days} days. "
            "Full ledger access coming in future sprint. "
            "Use CLI: arifos-verify-ledger for current functionality."
        ),
    )
