def get_json_from_last_prefix(fname: str, prefix_key: str):
"""
This gets the last late in a file.
:param fname: a string informing the file name.
:param prefix_key: a string containing the prefix key.
:return:
"""
errorLogger.debug("GET LAST LINE: %s", fname)
# check if the file exists
try:
file = open(fname, 'r')
except IOError:
errorLogger.error("Failed to to read log file %s", fname)
return None
else:
with file:
lines = file.read().splitlines()
if lines:
for line in range(len(lines), 1, -1):
# using '@' as a key to split the string
split_data = lines[line - 1].split("@")
if split_data[1] == (prefix_key + " : "):
if len(split_data) <= 1:
errorLogger.error(
"Event(s) has not found "
"in the system log: "
"%s", line)
return
data_line = split_data[2].replace("\'", "\"")
data_line = data_line.replace("True", "true")
data_line = data_line.replace("False", "false")
return json.loads(data_line)
return None
def root() -> redirect:
"""
This function will run at the localhost when it is being started
up.
:return: redirect to the home method.
"""
errorLogger.debug("ROOT")
return redirect(url_for('home'))
def complete_process(beer_key: str) -> redirect:
"""
Initialise the complete process page for the web sever.
:param beer_key:
:return:
"""
tab_no.update({"tab": "tab1"})
errorLogger.debug("CONTROL DASHBOARD")
beer_name, gyle_no, quantity = beer_key.split(":")
remove_process_for_beer(int(gyle_no), beer_name, int(quantity))
return redirect(url_for('home'))
def add_brew_process() -> redirect:
"""
Initialise the add brew process page for the web sever.
:return:
"""
tab_no.update({"tab": "tab1"})
errorLogger.debug("ADD BREW PROCESS")
beer_name = request.form.get("beer_name")
qty = int(request.form.get("quantity"))
highest_gyle_number.update(
{beer_name: (highest_gyle_number[beer_name] + 1)})
gyle_number = highest_gyle_number[beer_name]
update_recommended_sales(recommended_sales, beer_name, qty)
create_process_for_beer(gyle_number, beer_name, qty)
return redirect(url_for('home'))
def sales_predictor() -> redirect:
"""
Initialise the sales predictor page for the web sever.
:return:
"""
tab_no.update({"tab": "tab0"})
errorLogger.debug("SALES PREDICTOR")
SALE_PREDICT.clear()
sales_period = request.form.get("sales_period")
period.update({"period": sales_period})
if sales_period in MONTHS:
SALE_PREDICT.update(predict_month_beer_qty(sales_period))
else:
SALE_PREDICT.update(predict_week_beer_qty(sales_period))
return redirect(url_for('home'))
def home() -> render_template:
"""
Initialise the home page for the web sever.
:return: render_template.
"""
errorLogger.debug("HOME")
time.sleep(0.2)
return render_template("dashboard.html",
PERIODS=PERIODS,
SALES_DATA=SALES_DATA,
BEERS=BEERS,
TANKS=status_process_for_tank(),
GYLE_NO=highest_gyle_number,
PROCESS_MANAGEMENT=status_process_for_beer(),
SALES=SALE_PREDICT,
TAB_NO=tab_no["tab"],
PERIOD=period["period"],
RECOMMENDED_SALES=recommended_sales,
BEER_STOCK=status_process_for_beer_stock())
def restore_from_log():
"""
This retrieve the information from log file as json format.
:return:
"""
errorLogger.debug("RESTORE FROM LOG")
log_file_name = "log/system.log"
tanks = get_json_from_last_prefix(log_file_name, "tanks")
recommended = get_json_from_last_prefix(log_file_name, "recommended")
stock = get_json_from_last_prefix(log_file_name, "stock")
states = get_json_from_last_prefix(log_file_name, "state")
# check if the log file is empty
if tanks:
brew_process_dict.TANKS = tanks
else:
errorLogger.warning("System log doesn't the prefix key: " "tanks.")
if recommended:
for beer in recommended:
recommended_sales.update({beer: recommended[beer]})
else:
errorLogger.warning("System log doesn't the prefix key: "
"recommended.")
if stock:
for beer in stock:
brew_process_dict.update_beer_stock(beer, stock[beer])
else:
errorLogger.warning("System log doesn't the prefix key: " "stock.")
if states:
for state_data in states:
restore_beer_process(state_data["gyle"], state_data["name"],
state_data["qty"], state_data["state"],
state_data["is_allocate"],
state_data["p_tank"])
else:
errorLogger.warning("System log doesn't the prefix key: " "state.")