from fastapi import APIRouter, Request, Depends, HTTPException, Query
from sqlalchemy.exc import IntegrityError
from fastapi.responses import HTMLResponse, FileResponse, StreamingResponse
from fastapi.responses import JSONResponse
from database import get_db
from sqlalchemy import text, exists, and_, or_, not_
from sqlalchemy.orm import Session
from models import *
import json
import random
from sqlalchemy import create_engine, select
from typing import Optional
from utils.StripTagsHTMLParser import *
from common.db import db_event_management, db_user, db_area, db_emergency_plan
from common.security import valid_access_token
import traceback
from utils import *
from datetime import datetime, timedelta
import qrcode
from PIL import Image
from io import BytesIO
from config import settings
from common import YzyApi
from extensions import logger

router = APIRouter()

@router.get('/qrcode', response_class=StreamingResponse)
async def get_event_list(
    event_id: str,
    db: Session = Depends(get_db)
):
    redirect_url = "{}/#/signPage?event_id={}".format(settings.YJXP_WEB_ROOT_PATH, event_id) # 业务页面
    # qrcode_str = f"http://19.155.220.209/api/event_management/event?event_id={event_id}"
    detail_url = YzyApi.format_redirect_url(redirect_url)

    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_M,
        box_size=10,
        border=0,
    )
    qr.add_data(detail_url)
    qr.make(fit=True)
    image = qr.make_image()

    buf = BytesIO()
    image.save(buf, 'png')
    img_data = buf.getvalue()
    return StreamingResponse(BytesIO(img_data), media_type="image/png")


@router.post("/check")
async def check(
    request: Request, 
    db: Session = Depends(get_db), 
    body = Depends(remove_xss_json), 
    user_id = Depends(valid_access_token)
):
    row = db.query(SysUser).filter(SysUser.user_id == user_id).first()
    user_info = get_model_dict(row)
    dept_id = user_info['dept_id']

    row = db.query(SysDept).filter(SysDept.dept_id == dept_id).first()
    dept_info = get_model_dict(row)
    dept_name = dept_info['dept_name']

    event_id = body['event_id']
    yzy_account = body['yzy_account']

    row = db.query(EventCheckin).filter(and_(EventCheckin.event_id == event_id, EventCheckin.user_id == user_id)).first()
    if row is None:
        event_checkin = EventCheckin(
            event_id = event_id,
            user_id = user_id,
            user_name = user_info['user_name'],
            nick_name = user_info['nick_name'],
            dept_id = dept_id,
            dept_name = dept_name,
            sign_time = datetime.now(),
            yzy_account = yzy_account,
            del_flag = '0'
        )
        db.add(event_checkin)
        db.commit()

        return {
            'code': 200,
            'msg': '签名成功'
        }
    
    else:
        if row.del_flag == '0':
            row.sign_time = datetime.now()
            row.del_flag = '1'
            db.commit()

            return {
                'code': 200,
                'msg': '签出成功'
            }
            
        else:
            row.sign_time = datetime.now()
            row.del_flag = '0'
            db.commit()

            return {
                'code': 200,
                'msg': '签名成功'
            }

    
@router.get('/list')
async def get_event_list(
    event_id: str,
    page: int = Query(1, gt=0, description='页码'),
    page_size: int = Query(10, gt=0, description='pageSize'),
    db: Session = Depends(get_db)
):
    try:
        # 应用查询条件
        where = and_(EventCheckin.del_flag == '0', EventCheckin.event_id == event_id)
        # 计算总条目数
        q = db.query(func.count(EventCheckin.id))
        q = q.filter(where)
        total = q.scalar()
        
        # 执行分页查询
        q = db.query(EventCheckin)
        q = q.filter(where)
        rows = q.order_by(EventCheckin.id.desc()).offset((page - 1) * page_size).limit(page_size).all()
        data = [
            {
                "event_id": row.event_id,
                "user_id": row.user_id,
                "user_name": row.user_name,
                "nick_name": row.nick_name,
                "dept_id": row.dept_id,
                "dept_name": row.dept_name,
                "sign_time": get_datetime_str(row.sign_time),
                "yzy_account": row.yzy_account
            }
            for row in rows
        ]

        # 返回结果
        return {
            "code": 200,
            "msg": "查询成功",
            "data": data,
            "total": total
        }

    except Exception as e:
        # 处理异常
        traceback.print_exc()
        raise HTTPException(status_code=500, detail=str(e))