#!/usr/bin/env python
import MySQLdb
import sys
import smtplib

From='accounts@vinyambar.de'
dbname=sys.argv[1]
dryrun=0
if len(sys.argv)>2:
    dryrun=1
price=1.25
warnahead=4
cancelafter=1
db=MySQLdb.connect(db=dbname)
cursor=db.cursor()

users = cursor.execute("select users.email, users.id, count(subscriptions.game) from users, subscriptions, games where users.id=subscriptions.user and subscriptions.game=games.id and users.id!=0 and games.status='RUNNING' GROUP BY users.id")
server=smtplib.SMTP('localhost')
while users > 0:
    users=users-1
    email, uid, games = cursor.fetchone()
    if games==0:
	continue
    c2 = db.cursor()
    t = c2.execute("select sum(balance) from transactions where user="+str(int(uid)))
    if t==0:
	balance=0.0
    else:
	balance = c2.fetchone()[0]
    Msg=None
    if balance <= games*warnahead*price:
	Msg = ("From: Vinyambar Buchhaltung <"+From+">\nTo: "+email+"\n")
	if balance <= -games*cancelafter*price:
	    Msg=Msg+"Subject: Vinyambar Abmeldung Kunde "+str(int(uid))+".\n\n"
	    Msg = Msg+("Nachdem Dein Konto bei uns im Minus ist, haben wir deine\n"+
	    "Anmeldung bei Vinyambar gekündigt, und die Partei(en) der Parteibörse\n"+
	    "zugeführt.\n")
	    print "CANCEL: "+email+", uid="+str(int(uid))+", balance="+str(balance)+", games="+str(int(games))
	    if dryrun==0:
		c2.execute("UPDATE subscriptions set user=0, status='CANCELLED' where user="+str(int(uid)))
	else:
	    print "WARNING: "+email+", uid="+str(int(uid))+", balance="+str(balance)+", games="+str(int(games))
	    Msg = Msg+"Subject: WARNUNG - Vinyambar Kontostand Kunde "+str(int(uid))+"\n\n"
	    Msg = Msg+("Dein Vinyambar Kontostand reicht nicht mehr aus, um die kommenden "+str(warnahead)+"\n"+
	    "Wochen zu bezahlen. Bitte mache baldmöglichst eine neue Überweisung\n"
	    "auf das Vinyambar-Konto.\n\n"+
	    "Kundennummer:   "+str(uid)+"\n"+
	    "Kontostand:     "+str(balance)+" EUR\n"+
	    "\n"+
	    "Unser Konto: Katja Zedel\n"+
	    "Kontonummer 1251 886 106\n"+
	    "BLZ 500 502 01 (Frankfurter Sparkasse)\n")

    if (Msg!=None) and dryrun==0:
	try:
	    server.sendmail(From, email, Msg)
	except:
	    print "Could not send confirmation to "+email
	    print "Exception is:", sys.exc_type, ":", sys.exc_value