#!/usr/bin/env python

'''
Created on Dec 8, 2015

@author: Patrick McDonagh
'''


from datetime import datetime
import sys
from random import randint
import time
import MySQLdb
import tuxeip


#TUXEIP Connection to PLC
from tuxeip import TuxEIP, LGX, LGX_REAL


def main():

	db = MySQLdb.connect(host="127.0.0.1",user="website",passwd="henrypump",db="SolarData")
	cur = db.cursor()
	query = "SELECT * FROM SolarData.tags WHERE deleted = 0;"
	cur.execute(query)
	tags = cur.fetchall()
	# ((1L, 'DC_Bus_Voltage', datetime.datetime(2015, 12, 8, 16, 2, 32), 'V', 0L), (2L, 'Output_Frequency', datetime.datetime(2015, 12, 8, 16, 31, 12), 'Hz', 0L))
	db.commit()
	db.close()

	PLC_IP_ADDRESS = "192.168.1.13" # MAKE THIS A db VALUE

	tagList = [];
	if len(tags) > 0:
		for t in tags:
			tagList.append({"id":int(t[0]), "name":t[1], "val":None, "lastVal":None});

	try:
		tux = TuxEIP(libpath="/usr/lib/libtuxeip.so")
		sess = tux.OpenSession(PLC_IP_ADDRESS)
		reg = tux.RegisterSession(sess)
		conn = tux.ConnectPLCOverCNET(sess, LGX, 1, 100, 123, randint(0,9999), 123, 321, 100, 5000, 1, '01')

		while True:
			for r in tagList:
				r["val"] = tux.ReadLGXDataAsFloat(sess, conn, r['name'], 1)[0]
				print("{0} - {1}".format(r["name"], r["val"]))
				if not r["val"] == r["lastVal"]:
					db = MySQLdb.connect(host="127.0.0.1",user="website",passwd="henrypump",db="SolarData")
					cur = db.cursor()
					aQuery = """INSERT INTO SolarData.values (tagID, val) VALUES ('%d', '%f');"""%(r["id"], float(r["val"]))
					print(aQuery)
					storeVal = cur.execute(aQuery)
					db.commit()
					db.close()
					r["lastVal"] = r["val"]

			time.sleep(10)
	except Exception as err:
		print err
		pass
			
		
if __name__ == '__main__':
	main()