'''
As junior consultant you're asked to write a small notification system for passages based on logs from doors in secure area of company.
# log format: {hour:(('Name','e/x',)),} e/x: Entry or eXit
d_log = {7:(('Eric','e')),8:(('John','e'),('Michael','e'),('Eric','x')),9:(('Terry','e'), ('Eric','e'),('John','x'),('John','e')),10:(('John','x'),('Michael','x'))}
code should print something like below output

output:
'''
# Between 7 and 8 only Eric passed door.
# Between 8 and 9 John, Michael and Eric passed door.
# Between 9 and 10 Terry, Eric, John and John passed door.
# Between 10 and 11 John and Michael passed door.
'''
# bonus: expand system to keep track of people entering / exiting and amount in area
output:
'''
# Between 7 and 8 only Eric entered Secure Area. (1 inside)
# Between 8 and 9 John and Michael entered, only Eric exited Secure area. (2 inside)
# Between 9 and 10 Terry, Eric and John entered, only John exited Secure area. (4 inside)
# Between 9 and 10 John and Michael exited Secure area. (2 inside)
'''
#Bonus 2. some suggestions/ examples of other ways to extend the code/ idea
Remember it’s not about being first it’s about learning from doing and from what other people have done..
so share your code in a format others can easily copy to test/ extend
'''

def print_Names_List(_list):
    if type(_list[0]) != tuple:
        return f"only {_list[0]} passed door."
    else:

        _list = [i[0] for i in _list]

        if len(_list) == 2:
            return f"{_list[0]} and {_list[1]} passed door."
        else:
            return ", ".join(_list[:-1]) + f" and {_list[-1]} passed door."

d_log = {
    7:(('Eric','e')),
    8:(('John','e'),('Michael','e'),('Eric','x')),
    9:(('Terry','e'), ('Eric','e'),('John','x'),('John','e')),
    10:(('John','x'),('Michael','x'))
    }


_hours = list(d_log.keys())

# every transaction in the log is a tuple of 2 elements: (name, entrance/exit) as a value of the dictionary and the key is the hour
for hour in _hours:
    transactions = list(d_log[hour])
    print(f'Between {hour} and {hour+1} {print_Names_List(transactions)}')