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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import datetime, sqlite3, os, sys, smtplib, subprocess, time, tempfile
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
from email.mime.text import MIMEText
from email.header import Header
from config import *
def get_user_info(userid):
connection = sqlite3.connect('shop.db')
c = connection.cursor()
c.execute("SELECT id, email, firstname, lastname, gender, street, plz, city FROM users WHERE id = ?;", (userid,))
row = c.fetchone()
c.close()
if row is None:
return None
else:
return {
"id": row[0],
"email": row[1],
"firstname": row[2],
"lastname": row[3],
"gender": row[4],
"street": row[5],
"plz": row[6],
"city": row[7]
}
def get_price_info(product, timestamp, member = True):
result = 0
connection = sqlite3.connect('shop.db')
c = connection.cursor()
field = "memberprice"
if not member:
field = "guestprice"
c.execute("SELECT "+ field +" FROM prices WHERE product = ? AND valid_from <= ? ORDER BY valid_from ASC LIMIT 1;", (product,timestamp,))
for row in c:
result = int(row[0])
c.close()
return result
def invoice(user, title, subject, start=0, stop=0):
connection = sqlite3.connect('shop.db')
c = connection.cursor()
startcondition = ""
stopcondition = ""
if start > 0:
startcondition = " AND timestamp >= %d" % start
if stop > 0:
stopcondition = " AND timestamp <= %d" % stop
userinfo = get_user_info(user)
result = "\\documentclass[ktt-template,12pt,pagesize=auto,enlargefirstpage=on,paper=a4]{scrlttr2}\n\n"
result+= "\\title{%s}\n" % title
result+= "\\author{Kreativität trifft Technik}\n"
result+= "\\date{\\today}\n\n"
result+= "\\setkomavar{subject}{%s}\n" % subject
result+= "\\setkomavar{toname}{%s %s}\n" % (userinfo["firstname"], userinfo["lastname"])
result+= "\\setkomavar{toaddress}{%s\\newline\\newline\\textbf{%d %s}}\n\n" % (userinfo["street"], userinfo["plz"], userinfo["city"])
result+= "\\begin{document}\n"
result+= "\t\\begin{letter}{}\n"
if userinfo["gender"] == "masculinum":
result+= "\t\t\\opening{Sehr geehrter Herr %s,}\n\n" % userinfo["lastname"]
elif userinfo["gender"] == "femininum":
result+= "\t\t\\opening{Sehr geehrte Frau %s,}\n\n" % userinfo["lastname"]
else:
result+= "\t\t\\opening{Sehr geehrte/r Frau/Herr %s,}\n\n" % userinfo["lastname"]
result+= "\t\twir erlauben uns, Ihnen für den Verzehr von Speisen und Getränken wie folgt zu berechnen:\n\n"
result += "\t\t\\begin{footnotesize}\n"
result += "\t\t\t\\begin{longtable}{|l|l|l|l|}\n"
result += "\t\t\t\t\\hline\n"
result += "\t\t\t\tDatum & Uhrzeit & Artikel & Preis\\\\\n"
result += "\t\t\t\t\\hline\n"
c.execute("SELECT date(timestamp, 'unixepoch', 'localtime'), time(timestamp, 'unixepoch', 'localtime'), products.name, purchases.product, purchases.timestamp FROM purchases, products WHERE user = ? AND products.id = purchases.product" + startcondition + stopcondition + " ORDER BY timestamp;", (user,))
lastdate = ""
total = 0
for row in c:
price = get_price_info(row[3], row[4], user != 0)
total += price
if lastdate != row[0]:
result += "\t\t\t\t%s\t& %s\t& %s\t& %d,%02d Euro\\\\\n" % (row[0], row[1], row[2], price / 100, price % 100)
lastdate = row[0]
else:
result += "\t\t\t\t%s\t& %s\t& %s\t& %d,%02d Euro\\\\\n" % (" ", row[1], row[2], price / 100, price % 100)
result += "\t\t\t\t\\hline\n"
result += "\t\t\t\t\\multicolumn{3}{|l|}{Summe:} & %d,%02d Euro\\\\\n" % (total / 100, total % 100)
result += "\t\t\t\t\\hline\n"
result += "\t\t\t\\end{longtable}\n"
result += "\t\t\\end{footnotesize}\n\n"
result += "\t\tUmsatzsteuer wird nicht erhoben, da Kreativität trifft Technik e.V. als Kleinunternehmen\n"
result += "\t\tder Regelung des § 19 Abs. 1 UStG unterfällt.\n\n"
result += "\t\t\\closing{Mit freundlichen Grüßen}\n\n"
result += "\t\\end{letter}\n"
result += "\\end{document}"
c.close()
return result
def generate_mail(receiver, subject, message, pdfdata, cc = None):
msg = MIMEMultipart()
msg["From"] = "KtT Shop System <shop@kreativitaet-trifft-technik.de>"
try:
if receiver.encode("ascii"):
msg["To"] = receiver
except UnicodeError:
msg["To"] = Header(receiver, 'utf-8')
if cc != None:
msg["Cc"] = cc
msg["Subject"] = Header(subject, 'utf-8')
msg.preamble = "Please use a MIME aware email client"
msg.attach(MIMEText(message, 'plain', 'utf-8'))
pdf = MIMEApplication(pdfdata, 'pdf')
pdf.add_header('Content-Disposition', 'attachment', filename = 'rechnung.pdf')
msg.attach(pdf)
return msg
def generate_pdf(data):
rubber = subprocess.Popen("rubber-pipe -d", shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
pdf, stderr = rubber.communicate(input=data.encode('utf-8'))
return pdf
def send_mail(mail, receiver):
server = smtplib.SMTP(SMTPSERVERNAME, SMTPSERVERPORT)
server.starttls()
server.login(SMTPSERVERUSER, SMTPSERVERPASS)
maildata = mail.as_string()
server.sendmail(mail["From"], receiver, maildata)
server.quit()
def get_users_with_purches(start, stop):
result = []
connection = sqlite3.connect('shop.db')
c = connection.cursor()
c.execute("SELECT user FROM purchases WHERE timestamp >= ? AND timestamp <= ? GROUP BY user ORDER BY user;", (start,stop))
for row in c:
result.append(row[0])
c.close()
return result
def daily(timestamp = time.time()):
requested = datetime.datetime.fromtimestamp(timestamp)
# timestamps for previous day
dstop = requested.replace(hour = 8, minute = 0, second = 0) - datetime.timedelta(seconds = 1)
dstart = requested.replace(hour = 8, minute = 0, second = 0) - datetime.timedelta(days = 1)
if dstop > requested:
dstop -= datetime.timedelta(days = 1)
dstart -= datetime.timedelta(days = 1)
stop = int(dstop.strftime("%s"))
start = int(dstart.strftime("%s"))
title = "Getränke Rechnung %04d-%02d-%02d" % (dstart.year, dstart.month, dstart.day)
subject = "Getränke Zwischenstand %02d.%02d.%04d %02d:%02d Uhr bis %02d.%02d.%04d %02d:%02d Uhr" % (dstart.day, dstart.month, dstart.year, dstart.hour, dstart.minute, dstop.day, dstop.month, dstop.year, dstop.hour, dstop.minute)
for user in get_users_with_purches(start, stop):
userinfo = get_user_info(user)
if userinfo is not None:
receiver = "%s %s <%s>" % (userinfo["firstname"], userinfo["lastname"], userinfo["email"])
tex = invoice(user, title, subject, start, stop)
pdf = generate_pdf(tex)
mail = generate_mail(receiver, title, subject, pdf)
send_mail(mail, userinfo["email"])
print("Sent invoice to", userinfo["firstname"], userinfo["lastname"])
else:
print("Can't send invoice for missing user with the following id:", user)
daily()
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