#!/usr/bin/env python
# -*- coding: utf-8 -*-

from fastapi import APIRouter, Depends
from sqlalchemy import asc
from sqlalchemy.ext.asyncio import AsyncSession

from crud.sysdata.region import crud_region
from schemas.sysdata.region import RegionItemList
from utils.depends import get_async_db

router = APIRouter()


@router.get("/regions",
            response_model=RegionItemList,
            summary="地区列表(级联选择用)",
            description="地区列表，默认选择省列表。")
async def get_regions(page: int = None,
                      size: int = None,
                      code: str = "",
                      level: int = 1,
                      db: AsyncSession = Depends(get_async_db)):

    filters = {"level": level}
    if code:
        filters["pcode"] = code
    if level != 1:
        filters["level"] = level

    # 翻页
    if ((page is not None) and (page > 0)) \
            and ((size is not None) and (size > 0)):
        offset = (page - 1) * size
    else:
        offset = size = None

    total, items = await crud_region.find_all(db,
                                              filters=filters,
                                              offset=offset,
                                              limit=size,
                                              order_by=[asc("id")])
    return {"total": total, "data": items}