AI_Anchor/api/main.py

from fastapi import FastAPI,Cookie, Depends, Query, status,File, UploadFile,Request,Response,HTTPException
from fastapi.templating import Jinja2Templates
from fastapi.responses import HTMLResponse, RedirectResponse, JSONResponse
from typing import List, Optional
from os.path import isfile, isdir, join
import threading
import zhtts
import os 
import urllib
import requests
from bs4 import BeautifulSoup
from PIL import Image,ImageDraw,ImageFont
import pyttsx3
import rpyc
import random
import time
import math
import hashlib
import re
import asyncio
import urllib.request
from fastapi.responses import FileResponse
from fastapi.middleware.cors import CORSMiddleware
import dataset
from datetime import datetime, timedelta
from util.swap_face import swap_face
from fastapi.staticfiles import StaticFiles
import shutil
import io
from first import first
from passlib.context import CryptContext
from jose import JWTError, jwt
from fastapi_jwt_auth import AuthJWT
from fastapi_jwt_auth.exceptions import AuthJWTException
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
import models
import pymysql
from first import first
import mailer
from moviepy.editor import VideoFileClip
import traceback
import logging
import gSlide
pymysql.install_as_MySQLdb()

app = FastAPI()


app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)
SECRET_KEY = "df2f77bd544240801a048bd4293afd8eeb7fff3cb7050e42c791db4b83ebadcd"
ALGORITHM = "HS256"
ACCESS_TOKEN_EXPIRE_MINUTES = 300
pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")

app.mount("/static", StaticFiles(directory="static"), name="static")
app.mount("/static/img", StaticFiles(directory="static/img"), name="static/img")
app.mount("/templates", StaticFiles(directory="templates"), name="templates")

templates = Jinja2Templates(directory="templates")
oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")

tmp_video_dir = '../OpenshotService/tmp_video/'
tmp_avatar_dir = '../../face_swap/tmp_avatar/'  #change source face path here

video_sub_folder = 'ai_anchor_video/'
avatar_sub_folder = 'swap_save/'
tmp_img_sub_folder = 'tmp_img/'
img_upload_folder = '/var/www/html/'+tmp_img_sub_folder
video_dest = '/var/www/html/'+video_sub_folder
avatar_dest = '/var/www/html/'+avatar_sub_folder


@app.get("/index2")
async def index2():
    return FileResponse('static/index2.html')

@app.get("/index_eng")
async def index2():
    return FileResponse('static/index_eng.html')

# home page
@app.get("/index", response_class=HTMLResponse)
async def get_home_page(request: Request, response: Response):
    return templates.TemplateResponse("index.html", {"request": request, "response": response})
@app.get("/", response_class=HTMLResponse)
async def get_home_page(request: Request, response: Response):
    return templates.TemplateResponse("index.html", {"request": request, "response": response})

@app.get("/make_video", response_class=HTMLResponse)
async def get_home_page(request: Request, response: Response, Authorize: AuthJWT = Depends()):
    try:
        Authorize.jwt_required()
    except Exception as e:
        print(e)
        return '請先登入帳號'
    current_user = Authorize.get_jwt_subject()
    return templates.TemplateResponse("make_video.html", {"request": request, "response": response})

@app.get("/make_video_slide", response_class=HTMLResponse)
async def make_video_slide(request: Request, response: Response, Authorize: AuthJWT = Depends()):
    try:
        Authorize.jwt_required()
    except Exception as e:
        print(e)
        return '請先登入帳號'
    current_user = Authorize.get_jwt_subject()
    return templates.TemplateResponse("make_video_slide.html", {"request": request, "response": response})

@app.get('/user_profile', response_class=HTMLResponse)
def protected(request: Request, Authorize: AuthJWT = Depends()):
    Authorize.jwt_required()
    current_user = Authorize.get_jwt_subject()
    return current_user


# login & register page
@app.get("/login", response_class=HTMLResponse)
async def get_login_and_register_page(request: Request):
    return templates.TemplateResponse("login.html", {"request": request})

@app.post("/login")
async def login_for_access_token(request: Request, form_data: OAuth2PasswordRequestForm = Depends(), Authorize: AuthJWT = Depends()):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    user = authenticate_user(form_data.username, form_data.password)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Bearer"},
        )
    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    access_token = create_access_token(
        data={"sub": user.username}, expires_delta=access_token_expires
    )
    table = db['users']
    user.token = access_token
    table.update(dict(user), ['username'])
    access_token = Authorize.create_access_token(subject=user.username)
    refresh_token = Authorize.create_refresh_token(subject=user.username)
    Authorize.set_access_cookies(access_token)
    Authorize.set_refresh_cookies(refresh_token)
    #return templates.TemplateResponse("index.html", {"request": request, "msg": 'Login'})
    return {"access_token": access_token, "token_type": "bearer"}


@app.post("/token")
async def access_token(form_data: OAuth2PasswordRequestForm = Depends(), Authorize: AuthJWT = Depends()):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    user = authenticate_user(form_data.username, form_data.password)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Bearer"},
        )
    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    access_token = create_access_token(
        data={"sub": user.username}, expires_delta=access_token_expires
    )
    return {"access_token": access_token, "token_type": "bearer"}


@app.post("/register")
async def register(request: Request):
    user = models.User(**await request.form())
    user_register(user)
    return templates.TemplateResponse("login.html", {'request': request,"success": True}, status_code=status.HTTP_302_FOUND)

@app.get('/user_profile', response_class=HTMLResponse)
def protected(request: Request, Authorize: AuthJWT = Depends()):
    Authorize.jwt_required()
    current_user = Authorize.get_jwt_subject()
    return current_user




@app.get('/logout')
def logout(request: Request, Authorize: AuthJWT = Depends()):
    Authorize.jwt_required()
    Authorize.unset_jwt_cookies()
    return {"msg": "Successfully logout"}

@app.get("/gen_avatar")
async def avatar():
    return FileResponse('static/gen_avatar.html')

@app.post("/swapFace")
async def swapFace(req:models.swap_req):
    if 'http' not in req.imgurl:
        req.imgurl= 'http://'+req.imgurl
    try:
        im = Image.open(requests.get(req.imgurl, stream=True).raw)
        im= im.convert("RGB")
    except:
        return {'msg':"無法辨別圖片網址"+req.imgurl}
    name_hash = str(time.time()).replace('.','')
    
    x = threading.Thread(target=gen_avatar, args=(name_hash,req.imgurl))
    x.start()
    return {'msg':'人物生成中，請稍候'}

@app.post("/uploadfile/")
async def create_upload_file(file: UploadFile = File(...)):
    img_name = str(time.time()).replace('.','')
    try:
        contents = await file.read()
        image = Image.open(io.BytesIO(contents))
        image= image.convert("RGB")
        image.save(img_upload_folder+img_name+'.jpg')
    except:
        return {'msg':'檔案無法使用'}
    return {"msg": 'www.choozmo.com:8168/'+tmp_img_sub_folder+img_name+'.jpg'}

@app.post("/make_anchor_video_gSlide")
async def make_anchor_video_gSlide(req:models.gSlide_req,token: str = Depends(oauth2_scheme)):
    name, text_content, image_urls = gSlide.parse_slide_url(req.slide_url,eng=False)
    if len(image_urls) != len(text_content):
        return {'msg':'副標題數量、圖片(影片)數量以及台詞數量必須一致'}
    for idx in range(len(image_urls)):
        if 'http' not in image_urls[idx]:
            image_urls[idx] = 'http://'+image_urls[idx]
    if req.multiLang==0:
        for txt in text_content:
            if re.search('[a-zA-Z]', txt) !=None:
                print('語言錯誤')
                return {'msg':'輸入字串不能包含英文字!'}
    name_hash = str(time.time()).replace('.','')
    for imgu in image_urls:
        try:
            if get_url_type(imgu) =='video/mp4':
                r=requests.get(imgu)
            else:
                im = Image.open(requests.get(imgu, stream=True).raw)
                im= im.convert("RGB")
        except:
            return {'msg':"無法辨別圖片網址"+imgu}
    user_id = get_user_id(token)
    save_history(req,name_hash,user_id)
    x = threading.Thread(target=gen_video_queue, args=(name_hash,name, text_content, image_urls,int(req.avatar),req.multiLang,user_id))
    x.start()
    return {"msg":"製作影片需要時間，請您耐心等候，成果會傳送至LINE群組中"} 

@app.post("/make_anchor_video")
async def make_anchor_video(req:models.request,token: str = Depends(oauth2_scheme)):
    if len(req.image_urls) != len(req.text_content):
        return {'msg':'副標題數量、圖片(影片)數量以及台詞數量必須一致'}
    for idx in range(len(req.image_urls)):
        if 'http' not in req.image_urls[idx]:
            req.image_urls[idx] = 'http://'+req.image_urls[idx]
    if req.multiLang==0:
        for txt in req.text_content:
            if re.search('[a-zA-Z]', txt) !=None:
                print('語言錯誤')
                return {'msg':'輸入字串不能包含英文字!'}
    name_hash = str(time.time()).replace('.','')
    for imgu in req.image_urls:
        try:
            if get_url_type(imgu) =='video/mp4':
                r=requests.get(imgu)
            else:
                im = Image.open(requests.get(imgu, stream=True).raw)
                im= im.convert("RGB")
        except:
            return {'msg':"無法辨別圖片網址"+imgu}
    user_id = get_user_id(token)
    save_history(req,name_hash,user_id)
    x = threading.Thread(target=gen_video_queue, args=(name_hash,req.name, req.text_content, req.image_urls,int(req.avatar),req.multiLang,user_id))
    x.start()
    return {"msg":"製作影片需要時間，請您耐心等候，成果會傳送至LINE群組中"} 

@app.post("/make_anchor_video_eng")
async def make_anchor_video_eng(req:models.request_eng):
    if len(req.image_urls) != len(req.sub_titles) or len(req.sub_titles) != len(req.text_content):
        return {'msg':'副標題數量、圖片(影片)數量以及台詞數量必須一致'}
    for idx in range(len(req.image_urls)):
        if 'http' not in req.image_urls[idx]:
            req.image_urls[idx] = 'http://'+req.image_urls[idx]
    name_hash = str(time.time()).replace('.','')
    for imgu in req.image_urls:
        try:
            if get_url_type(imgu) =='video/mp4':
                r=requests.get(imgu)
            else:
                im = Image.open(requests.get(imgu, stream=True).raw)
                im= im.convert("RGB")
        except:
            return {'msg':"無法辨別圖片網址"+imgu}

    save_history(req,name_hash)
    x = threading.Thread(target=gen_video_queue_eng, args=(name_hash,req.name, req.text_content, req.image_urls,req.sub_titles,int(req.avatar)))
    x.start()
    return {"msg":"製作影片需要時間，請您耐心等候，成果會傳送至LINE群組中"} 

@app.get("/history_input")
async def history_input(request: Request, Authorize: AuthJWT = Depends()):
    Authorize.jwt_required()
    current_user = Authorize.get_jwt_subject()

    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    user_id = first(db.query('SELECT * FROM users where username="' + current_user +'"'))['id']
    statement = 'SELECT * FROM history_input WHERE user_id="'+str(user_id)+'" ORDER BY timestamp DESC LIMIT 50'

    logs = []
    for row in db.query(statement):
        logs.append({'id':row['id'],'name':row['name'],'text_content':row['text_content'].split(','),'link':row['link'],'image_urls':row['image_urls'].split(',')})
    return logs



@AuthJWT.load_config
def get_config():
    return models.Settings()

@app.exception_handler(AuthJWTException)
def authjwt_exception_handler(request: Request, exc: AuthJWTException):
    return JSONResponse(
        status_code=exc.status_code,
        content={"detail": exc.message}
    )

def get_user_id(token):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail="Could not validate credentials",
        headers={"WWW-Authenticate": "Bearer"},
    )
    try:
        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
        username: str = payload.get("sub")
        if username is None:
            raise credentials_exception
        token_data = models.TokenData(username=username)
    except JWTError:
        raise credentials_exception
    user = get_user(username=token_data.username)
    if user is None:
        raise credentials_exception
    user_id = first(db.query('SELECT * FROM users where username="' + user.username+'"'))['id']
    return user_id

def check_user_exists(username):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    if int(next(iter(db.query('SELECT COUNT(*) FROM AI_anchor.users WHERE username = "'+username+'"')))['COUNT(*)']) > 0:
        return True
    else:
        return False

def get_user(username: str):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    if not check_user_exists(username):  # if user don't exist
        return False
    user_dict = next(
        iter(db.query('SELECT * FROM AI_anchor.users where username ="'+username+'"')))
    user = models.User(**user_dict)
    return user
    
def user_register(user):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    table = db['users']
    user.password = get_password_hash(user.password)
    table.insert(dict(user))

def get_password_hash(password):
    return pwd_context.hash(password)
def verify_password(plain_password, hashed_password):
    return pwd_context.verify(plain_password, hashed_password)
def authenticate_user(username: str, password: str):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    if not check_user_exists(username):  # if user don't exist
        return False
    user_dict = next(iter(db.query('SELECT * FROM AI_anchor.users where username ="'+username+'"')))
    user = models.User(**user_dict)
    if not verify_password(password, user.password):
        return False
    return user
def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
    to_encode = data.copy()
    if expires_delta:
        expire = datetime.utcnow() + expires_delta
    else:
        expire = datetime.utcnow() + timedelta(minutes=15)
    to_encode.update({"exp": expire})
    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
    return encoded_jwt

def save_history(req,name_hash,user_id):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    log_table = db['history_input']
    txt_content_seperate_by_dot = ''
    for txt in req.text_content:
        txt_content_seperate_by_dot += txt+","
    txt_content_seperate_by_dot = txt_content_seperate_by_dot[:-1]
    img_urls_seperate_by_dot = ''
    for iurl in req.image_urls:
        img_urls_seperate_by_dot += iurl+","
    img_urls_seperate_by_dot = img_urls_seperate_by_dot[:-1]
    time_stamp = datetime.fromtimestamp(time.time())
    time_stamp = time_stamp.strftime("%Y-%m-%d %H:%M:%S")
    pk = log_table.insert({'name':req.name,'text_content':txt_content_seperate_by_dot,'image_urls':img_urls_seperate_by_dot
    ,'user_id':user_id,'link':'www.choozmo.com:8168/'+video_sub_folder+name_hash+'.mp4','timestamp':time_stamp})
    
def get_url_type(url):
    req = urllib.request.Request(url, method='HEAD', headers={'User-Agent': 'Mozilla/5.0'})
    r = urllib.request.urlopen(req)
    contentType = r.getheader('Content-Type')
    return contentType

def notify_line_user(msg, line_token):
    headers = {
            "Authorization": "Bearer " + line_token,
            "Content-Type": "application/x-www-form-urlencoded"
    }
    params = {"message": msg}   
    r = requests.post("https://notify-api.line.me/api/notify",headers=headers, params=params)

def notify_group(msg):
    glist=['WekCRfnAirSiSxALiD6gcm0B56EejsoK89zFbIaiZQD']
    for gid in glist:
        headers = {
                "Authorization": "Bearer " + gid,
                "Content-Type": "application/x-www-form-urlencoded"
        }
        params = {"message": msg}   
        r = requests.post("https://notify-api.line.me/api/notify",headers=headers, params=params)

def gen_video(name_hash,name,text_content, image_urls,avatar):
    c = rpyc.connect("localhost", 8858)
    c._config['sync_request_timeout'] = None
    remote_svc = c.root
    my_answer = remote_svc.call_video(name_hash,name,text_content, image_urls,avatar) # method call
    shutil.copy(tmp_video_dir+name_hash+'.mp4',video_dest+name_hash+'.mp4')
    os.remove(tmp_video_dir+name_hash+'.mp4')

def gen_video_eng(name_hash,name,text_content, image_urls,sub_titles,avatar):
    c = rpyc.connect("localhost", 8858)
    c._config['sync_request_timeout'] = None
    remote_svc = c.root
    my_answer = remote_svc.call_video_eng(name_hash,name,text_content, image_urls,sub_titles,avatar) # method call
    shutil.copy(tmp_video_dir+name_hash+'.mp4',video_dest+name_hash+'.mp4')
    os.remove(tmp_video_dir+name_hash+'.mp4')

def gen_video_queue(name_hash,name,text_content, image_urls,avatar,multiLang,user_id):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    time_stamp = datetime.fromtimestamp(time.time()).strftime("%Y-%m-%d %H:%M:%S")
    txt_content_seperate_by_dot = ''
    for txt in text_content:
        txt_content_seperate_by_dot += txt+","
    txt_content_seperate_by_dot = txt_content_seperate_by_dot[:-1]
    img_urls_seperate_by_dot = ''
    for iurl in image_urls:
        img_urls_seperate_by_dot += iurl+","
    img_urls_seperate_by_dot = img_urls_seperate_by_dot[:-1]
    
    db['video_queue'].insert({'name_hash':name_hash,'name':name,'text_content':txt_content_seperate_by_dot,'image_urls':img_urls_seperate_by_dot,'multiLang':multiLang,'avatar':avatar,'timestamp':time_stamp})
    while True:
        
        if first(db.query('SELECT * FROM video_queue_status'))['status'] == 1:#only one row in this table, which is the id 1 one
            print('another process running, leave loop')#1 means already running
            break
        if first(db.query('SELECT COUNT(1) FROM video_queue'))['COUNT(1)'] == 0:
            print('all finish, leave loop')
            break
        top1 = first(db.query('SELECT * FROM video_queue'))
        try:
        # if True:
            db.query('UPDATE video_queue_status SET status = 1;')
            c = rpyc.connect("localhost", 8858)
            c._config['sync_request_timeout'] = None
            remote_svc = c.root
            my_answer = remote_svc.call_video(top1['name_hash'],top1['name'],top1['text_content'].split(','), top1['image_urls'].split(','),top1['multiLang'],top1['avatar']) # method call
            shutil.copy(tmp_video_dir+top1['name_hash']+'.mp4',video_dest+top1['name_hash']+'.mp4')
            os.remove(tmp_video_dir+top1['name_hash']+'.mp4')
            vid_duration = VideoFileClip(video_dest+top1['name_hash']+'.mp4').duration
            user_obj = first(db.query('SELECT * FROM users where id ="'+str(user_id)+'"'))
            line_token = user_obj['line_token']         # aa
            left_time = user_obj['left_time']
            email = user_obj['email']
            print('left_time is '+str(left_time))
            if left_time is None:
                left_time = 5*60
            if left_time < vid_duration:
                msg = '您本月額度剩下'+str(left_time)+'秒,此部影片有'+str(vid_duration)+'秒, 若要繼續產生影片請至 192.168.1.106:8887/confirm_add_value?name_hash='+name_hash+' 加值'
                print(msg)
                msg =msg.encode(encoding='utf-8')
                mailer.send(msg, email)
                notify_line_user(msg, line_token)
            else:
                left_time = left_time - vid_duration
                db.query('UPDATE users SET left_time ='+str(left_time)+' WHERE id='+str(user_id)+';')
                notify_group(name+"的影片已經產生完成囉! www.choozmo.com:8168/"+video_sub_folder+name_hash+".mp4")
                notify_line_user(name+"的影片已經產生完成囉! www.choozmo.com:8168/"+video_sub_folder+name_hash+".mp4", line_token)
        except Exception as e:
            logging.error(traceback.format_exc())
            print('video generation error')
            notify_group('影片錯誤')
        db['video_queue'].delete(id=top1['id'])
        db.query('UPDATE video_queue_status SET status = 0')

def gen_video_queue_eng(name_hash,name,text_content, image_urls,sub_titles,avatar):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    time_stamp = datetime.fromtimestamp(time.time()).strftime("%Y-%m-%d %H:%M:%S")
    txt_content_seperate_by_dot = ''
    for txt in text_content:
        txt_content_seperate_by_dot += txt+","
    txt_content_seperate_by_dot = txt_content_seperate_by_dot[:-1]
    img_urls_seperate_by_dot = ''
    for iurl in image_urls:
        img_urls_seperate_by_dot += iurl+","
    img_urls_seperate_by_dot = img_urls_seperate_by_dot[:-1]
    subtitles_seperate_by_dot = ''
    for sub in sub_titles:
        subtitles_seperate_by_dot += sub+","
    subtitles_seperate_by_dot = subtitles_seperate_by_dot[:-1]
    db['video_queue'].insert({'name_hash':name_hash,'name':name,'text_content':txt_content_seperate_by_dot,'image_urls':img_urls_seperate_by_dot,'subtitles':subtitles_seperate_by_dot,'avatar':avatar,'timestamp':time_stamp})
    while True:
        if first(db.query('SELECT * FROM video_queue_status'))['status'] == 1:#only one row in this table, which is the id 1 one
            print('another process running, leave loop')
            break
        if first(db.query('SELECT COUNT(1) FROM video_queue'))['COUNT(1)'] == 0:
            print('all finish, leave loop')
            break
        top1 = first(db.query('SELECT * FROM video_queue'))
        try:
            db.query('UPDATE video_queue_status SET status = 1;')
            c = rpyc.connect("localhost", 8858)
            c._config['sync_request_timeout'] = None
            remote_svc = c.root
            my_answer = remote_svc.call_video_eng(top1['name_hash'],top1['name'],top1['text_content'].split(','), top1['image_urls'].split(','),top1['subtitles'].split(','),top1['avatar']) # method call
            shutil.copy(tmp_video_dir+top1['name_hash']+'.mp4',video_dest+top1['name_hash']+'.mp4')
            os.remove(tmp_video_dir+top1['name_hash']+'.mp4')
        except:
            print('video generation error')
            notify_group('影片錯誤')
        db['video_queue'].delete(id=top1['id'])
        db.query('UPDATE video_queue_status SET status = 0')

def gen_avatar(name_hash, imgurl):
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/AI_anchor?charset=utf8mb4')
    db['avatar_queue'].insert({'name_hash':name_hash,'imgurl':imgurl})
    while True:
        statement = 'SELECT * FROM avatar_service_status'#only one row in this table, which is the id 1 one
        status = -1
        for row in db.query(statement):
            status = row['status']
        if status == 1:
            print('leave process loop')
            break

        statement = 'SELECT * FROM avatar_queue'
        works = []
        for row in db.query(statement):
            works.append({'id':row['id'],'name_hash':row['name_hash'],'imgurl':row['imgurl']})
        if len(works)==0:
            print('leave process loop')
            break
        try:
            statement = 'UPDATE avatar_service_status SET status = 1 WHERE id=1;'
            db.query(statement)
            name_hash = works[0]['name_hash']
            imgurl = works[0]['imgurl']
            c = rpyc.connect("localhost", 8868)
            c._config['sync_request_timeout'] = None
            remote_svc = c.root
            my_answer = remote_svc.call_avatar(name_hash,imgurl) # method call
            shutil.copy(tmp_avatar_dir+name_hash+'.mp4',avatar_dest+name_hash+'.mp4')
            os.remove(tmp_avatar_dir+name_hash+'.mp4')
            
        except:
            print('gen error')
            notify_group('無法辨識人臉')
        db['avatar_queue'].delete(id=works[0]['id'])
        statement = 'UPDATE avatar_service_status SET status = 0 WHERE id=1;'  #only one row in this table, which id 1 one
        db.query(statement)