#  my code for futurelearn course on programming
#  created 22/04/2019 by CJW
#  variables - usersname - holds the name entered by the user
#               input1 - first number ( as text)
#               input2 - second number ( as text)
#               input3 - third number ( as text)
#               result - input 1 + input 2
#               number1 - integer of input1
#               number2 - integer of input2
#               number3 - integer of input3
#               output - resut as a string
# Purpose - calculates the area of a triangle

#  starts
finished = False
while finished == False:
    print ("Hi, I'm Esmeralda and am your personal bot")
    usersname = input("Whats your name?  " ) # gathers username
    print ("Great to see you again, " + usersname + " Lets begin")
    command = input("How can I help <add, subtract, divide, multiply, volume, average, bill_sharer>? ")
    if command == "add" or command == "plus":
        print("lets add some numbers")
        input1 = input("Please enter first number ") # first number
        input2 = input("Please enter second number ") # second number
        number1 = int(input1) # saves as an integer
        number2 = int(input2) # saves as an integer
        result = number1 + number2
        output = str(result)
        print(input1 + " + " + input2 + " = " + output)
    elif command == "subtract":
        print("lets subtract some numbers")
        input1 = input("Please enter first number ") # first number
        input2 = input("Please enter second number ") # second number
        number1 = int(input1) # saves as an integer
        number2 = int(input2) # saves as an integer
        result = number1 - number2
        output = str(result)
        print(input1 + " - " + input2 + " = " + output)
    elif command == "multiply":
        print("lets multiply some numbers")
        input1 = input("Please enter first number ") # first number
        input2 = input("Please enter second number ") # second number
        number1 = int(input1) # saves as an integer
        number2 = int(input2) # saves as an integer
        result = number1 * number2
        output = str(result)
        print(input1 + " x " + input2 + " = " + output)
    elif command == "divide":
        print("lets divide some numbers")
        input1 = input("Please enter first number ") # first number
        input2 = input("Please enter second number ") # second number
        number1 = int(input1) # saves as an integer
        number2 = int(input2) # saves as an integer
        result = number1 / number2
        output = str(result)
        print(input1 + " / " + input2 + " = " + output)
    elif command == "volume":
        print("lets caclulate the volume of a cube")
        input1 = input("Please enter first number - length ") # first number
        input2 = input("Please enter second number - depth ") # second number
        input3 = input("Please enter third number - height ") # third number
        number1 = int(input1) # saves as an integer
        number2 = int(input2) # saves as an integer
        number3 = int(input3) # saves as an integer
        result = number1 * number2 * number3
        output = str(result)
        print("A cube with dimensions " + input1 + " " + input2 + " " + input3 + " has a volume of " + output)
    elif command == "average":
        count = 0 # list count
        tot = 0 # running total of values entered
        how_many = input("how many numbers do you want to average? ")
        how_many = int(how_many)
        listofentries = []
        for item_number in range(how_many): #  loop to input numbers items
            item = input("What is number " + str(item_number) +" ? > ")
            listofentries.append(item)
            tot = tot + int(item)
            count = count +1
        result = tot / count
        print ("Average = " +str(result))
        print ("numbers entered = > " + str(listofentries))

    elif command == "bill_sharer":
        count = 0 # number of items on the bill
        tot = 0.00 # running total of the bill
        peeps = 0 # number of people to split the bill by
        listofentries = [] # bill items

        items = input ("how many items are there on the bill? > ")
        items = int(items)
        for item_number in range(items): #  loop to input bill items
            item = input("What is item " + str(item_number) +" ? > ") # data entry
            listofentries.append(item) # add to history
            tot = float(tot) + float(item) # add to running total
            count = count +1
        peeps = input ("how many people need to split this bill? > ")
        peeps = int(peeps)
        result = tot / peeps
        #  print('{:.2f}'.format(result)) # this line was to test formatting to 2DP
        print ( "total bill is > £" + str(tot))
        print ( "Between " + str(peeps) + " people thats £" + str('{:.2f}'.format(result)) + " each")
        print ( "Remainder is > " + str(tot -(peeps * result))) # this doesnt work as always comes out as zero
        print ( "these items were in the list > " + str(listofentries))
    elif command == "bye":
        finished = True

    else:
        print ("sorry i dont understand your data entry :- " + command)