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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import datetime, sqlite3, sys
def get_user_info(userid):
result = {
"id": userid,
"username": "",
"email": "",
"firstname": "",
"lastname": "",
"street": "",
"city": ""
}
connection = sqlite3.connect('shop.db')
c = connection.cursor()
c.execute("SELECT id, username, email, firstname, lastname, street, city FROM users WHERE id = ?;", (userid,))
for row in c:
result["id"] = row[0]
result["username"] = row[1]
result["email"] = row[2]
result["firstname"] = row[3]
result["lastname"] = row[4]
result["street"] = row[5]
result["city"] = row[6]
c.close()
return result
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{%s}}\n\n" % (userinfo["street"], userinfo["city"])
result+= "\\begin{document}\n"
result+= "\t\\begin{letter}{}\n"
result+= "\t\t\\opening{Sehr geehrter 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,%d 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,%d 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,%d 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 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
##############################
# User Code
##############################
user = 2342
start = int(datetime.datetime(2012, 5, 1, 0, 0, 0).strftime("%s"))
stop = int(datetime.datetime(2012, 5, 31, 23, 59, 59).strftime("%s"))
# TODO: autogenerate title and subject
title = "Getränke Rechnung 05/2012"
subject = "Rechnung Nr. 2012050001"
# this can be used to find users, which should get an invoice in a specified time slice
#print("users:", get_users_with_purches(start, stop), file=sys.stderr)
print(invoice(user, title, subject, start, stop))
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