eBike-SQLite/insertLoading.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from datetime import datetime, timedelta
import sys
import sqlite3


db_file = "/www/wwwroot/www.manuelw.de/ebike/ebike.db"


try:
	loading = sys.argv[1]
	watt = sys.argv[2]
except:
	print("Fehlende Command Line Inputs")
	exit(0)


##
### auf neue Files überwachen
def main():
	global cursor
	try:
		db = sqlite3.connect(db_file)
		cursor = db.cursor()
		print("Connected to SQLite")
		
		updateLast()
		db.commit()
		print("Data updated successfully into bike_loading table")
		
		insertNew()
		db.commit()
		print("Data inserted successfully into bike_drives table")
		cursor.close()
		
	except sqlite3.Error as error:
		print("Failed to insert data into sqlite table", error)
	finally:
		if db:
			db.close()
			print("The SQLite connection is closed")


def updateLast():
	global cursor, watt
	
	## hole letztes Ladungs-Datum
	sql = '''
		SELECT id, l_date FROM bike_loading ORDER BY l_date DESC LIMIT 1;
	'''
	cursor.execute(sql)
	row = cursor.fetchone()
	
	ins_id = row[0]
	
	## hole alle Fahrten nach letzter Ladung
	sql = '''
		SELECT d_total_distance, d_total_ascent, d_avg_speed FROM bike_drives WHERE d_date >= ?;
	'''
	cursor.execute(sql, (row[1],))
	rows = cursor.fetchall()
	
	total_range = 0
	total_ascent = 0
	avg_speed = 0
	fahrten = 0
	
	print("Anzahl:", len(rows))
	
	for row in rows:
		fahrten += 1
		total_range += row[0]
		total_ascent += row[1]
		avg_speed += row[2]
		
	avg_speed = round(avg_speed / fahrten, 1)
	
	data = (total_range, total_ascent, watt, fahrten, ins_id)
	sql = '''
		UPDATE bike_loading SET
		l_total_range = ?,
		l_total_ascent = ?,
		l_loaded_wh = ?,
		l_fahrten = ?
		WHERE id = ?
	'''
	cursor.execute(sql, data)

	
def insertNew():
	global cursor, loading
	
	date = datetime.today().strftime('%Y-%m-%d %H:%M:%S')
	data = (date, loading)
	sql = '''
		INSERT INTO bike_loading
		(l_date, l_loading)
		VALUES
		(?, ?)
	'''
	
	cursor.execute(sql, data)


if __name__ == '__main__':
	main()