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menu_retrieve.py
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menu_retrieve.py
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import os
import asyncio
import time
import datetime
import urllib.request
import io
from pdf2image import convert_from_path as cfp
from PIL import Image
import db_reader as dbr
working_path = os.path.dirname(os.path.realpath(__file__))
path = os.path.join(working_path, "images")
if not os.path.isdir(path):
os.mkdir(path)
def getperiod(end_day):
Today = datetime.datetime.now()
if end_day is not None:
Lastmon = Today - datetime.timedelta(days=Today.weekday())
EndDay = Lastmon + datetime.timedelta(days=end_day)
return Lastmon, EndDay
return ValueError
def geturl(date, name):
base_url = "http://www.dsu.toscana.it/it/Men%C3%B9"
ID, end_day, splitted = dbr.EndDay(name)
begin, end = getperiod(end_day)
#if not splitted:
return base_url + "-dal-" + begin.strftime("%d.%m.%y") + "-al-" + end.strftime("%d.%m.%y") + "-" + ID + ".pdf"
async def retrieve_file(url, retry_attempts, retry_interval):
for i in range(retry_attempts):
print("attempt", i+1, "of", retry_attempts)
try:
file_name, headers = urllib.request.urlretrieve(url)
print("Menù retrieved")
return file_name
except:
print("Menù not found, retrying in", retry_interval, "seconds")
await asyncio.sleep(retry_interval)
else:
print("Unable to locate the file")
return ""
async def save_png(images, name):
dbr.add_image(images, name, None, datetime.datetime.now())
return len(images)
async def makeimg(mensa_name):
mensa_name = mensa_name.lower()
#path = os.path.dirname(os.path.realpath(__file__))
url = geturl(datetime.datetime.now(), mensa_name)
print("Url:", url)
pdf_name = await retrieve_file(url, 24, 3600)
if pdf_name != "":
print("Converting pages")
pages = cfp(pdf_name, 500)
await save_png(pages, mensa_name)
print("Menù exported")
#os.remove(pdf_name)
#print("Cleared temporary files")
#return os.path.join(path, mensa_name + ".png")
else:
print("Unable to find the menù")
return
'''
files = ["images\\cammeo.png"]
pages = [Image.open(os.path.join(working_path, x)) for x in files]
asyncio.run(save_png(pages, "cammeo"))
#asyncio.run(makeimg(input("Type mensa name: ")))
'''