from datetime import datetime
from typing import Optional

from fastapi import APIRouter, Depends, Query
from sqlalchemy.orm import Session

from core.database import GateAccessLog, get_db
from core.dependencies import require_manager
from core.schemas import StatsPage

router = APIRouter(prefix="/api/admin/stats", tags=["admin-stats"])


@router.get("", response_model=StatsPage)
async def get_stats(
    db: Session = Depends(get_db),
    _: dict = Depends(require_manager),
    gate_id: Optional[int] = Query(None),
    keypass_code: Optional[str] = Query(None),
    success: Optional[bool] = Query(None),
    date_from: Optional[datetime] = Query(None),
    date_to: Optional[datetime] = Query(None),
    page: int = Query(1, ge=1),
    page_size: int = Query(50, ge=1, le=200),
):
    q = db.query(GateAccessLog)
    if gate_id is not None:
        q = q.filter(GateAccessLog.gate_id == gate_id)
    if keypass_code:
        q = q.filter(GateAccessLog.keypass_code.ilike(f"%{keypass_code}%"))
    if success is not None:
        q = q.filter(GateAccessLog.success == success)
    if date_from is not None:
        q = q.filter(GateAccessLog.timestamp >= date_from)
    if date_to is not None:
        q = q.filter(GateAccessLog.timestamp <= date_to)

    total = q.count()
    items = (
        q.order_by(GateAccessLog.timestamp.desc())
        .offset((page - 1) * page_size)
        .limit(page_size)
        .all()
    )
    return StatsPage(total=total, page=page, page_size=page_size, items=items)