#!/usr/bin/python
#
#
#  10/19/2015  Paul Mattione
#
#
##### Fixes (swaps) 2 of the BCAL discriminator roc-ids
#
#

import sqlite3 as lite
import sys
import os
import re
import datetime

if len(sys.argv) != 2:
	print "You must supply a SQLite DB file to modify!"
	sys.exit(0);

# Connect to SQLite DB file
db_filename = sys.argv[1]
print ""
print "opening SQLite DB file: %s" % db_filename
print "---------------------------------------------"
con = lite.connect(db_filename)

with con:

	# Specify that next cursor should be "dictionary"
	# (i.e. python's hash map) so columns can be indexed
	# by name
	con.row_factory = lite.Row

	# Create Cursor
	cur = con.cursor()

	# Check that this TT file has not already been updated
	cur.execute("SELECT * FROM Crate WHERE rocid=43 AND crateid=20")
	Nrows = len( cur.fetchall() )
	if Nrows == 0:
		print 'Fix has already been applied, exiting'
		sys.exit(-1)

	# SET the rocid for the TOF discriminator crate
	query = "UPDATE Crate SET rocid=44 WHERE crateid=20"
	cur.execute(query)
	query = "UPDATE Crate SET rocid=43 WHERE crateid=27"
	cur.execute(query)

	print 'Done'