from typing import Optional

from fastapi import APIRouter, Depends, Query
from sqlmodel import Session, col, func, select

from app.database import get_session
from app.models import AuditLog

router = APIRouter()


@router.get("/audit")
def list_audit(
    page: int = Query(1, ge=1),
    per_page: int = Query(50, ge=1, le=200),
    action: Optional[str] = None,
    session: Session = Depends(get_session),
):
    query = select(AuditLog)

    if action:
        query = query.where(AuditLog.action == action)

    count_query = select(func.count()).select_from(query.subquery())
    total = session.exec(count_query).one()

    query = query.order_by(col(AuditLog.ts).desc())
    offset = (page - 1) * per_page
    query = query.offset(offset).limit(per_page)

    logs = session.exec(query).all()

    return {
        "items": [log.model_dump() for log in logs],
        "total": total,
        "page": page,
        "per_page": per_page,
    }