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

import os
from typing import Union

from fastapi import APIRouter, UploadFile, File, Depends
from sqlalchemy.ext.asyncio import AsyncSession

from common.common import upload_oss_file, delete_oss_file
from core.config import settings
from crud.marktask import crud_task
from crud.paper import crud_paper
from models.user import Student, Teacher, Admin
from schemas.base import DetailMixin
from schemas.common import DeleteFile, UploadBase64File
from utils.depends import get_current_user, get_async_db

router = APIRouter()


@router.post("/upfile",
             response_model=DetailMixin,
             response_model_exclude_none=True,
             summary="通用文件上传")
async def upload_file(datafile: UploadFile = File(..., description="文件"),
                      current_user: Union[Admin, Teacher, Student] = Depends(get_current_user)):
    ok, url = await upload_oss_file(datafile, content_type={"Content-Type": datafile.content_type})
    if ok:
        return {"data": url}
    else:
        return {"errcode": 400, "mess": url}


@router.post("/upfile/base64",
             response_model=DetailMixin,
             response_model_exclude_none=True,
             summary="通用文件上传(base64)")
async def upload_base64_file(datafile: UploadBase64File,
                             current_user: Union[Admin, Teacher,
                                                 Student] = Depends(get_current_user)):
    content_type = datafile.content[:22].split(";")[0].split(":")[-1]
    ok, url = await upload_oss_file(datafile, content_type={"Content-Type": content_type})
    if ok:
        return {"data": url}
    else:
        return {"errcode": 400, "mess": url}


@router.post("/delfile",
             response_model=DetailMixin,
             response_model_exclude_none=True,
             tags=["通用接口"],
             summary="通用文件删除")
async def delete_file(info: DeleteFile,
                      current_user: Union[Admin, Teacher, Student] = Depends(get_current_user)):
    ok, url = await delete_oss_file(info.path)
    if ok:
        return {"data": None}
    else:
        return {"errcode": 400, "mess": url}


@router.post("/uppapers", summary="试卷上传")
async def upload_file(datafile: UploadFile = File(..., description="文件"),
                      db: AsyncSession = Depends(get_async_db)):
    content = await datafile.read()
    filename = datafile.filename
    tid = filename.split("_")[0]
    task = await crud_task.find_one(db, filters={"id": tid})
    if task:
        pid = task.pid
        paper = await crud_paper.find_one(db, filters={"id": pid})
        if paper:
            pno = paper.pno
            root = os.path.join(settings.PAPERS_PATH, f"T{tid}-{pno}")
            if not os.path.exists(root):
                os.makedirs(root)
            filepath = os.path.join(root, filename)
            with open(filepath, "wb") as f:
                f.write(content)

            return {"data": filepath}

    return {"errcode": 400, "mess": "上传失败!"}