# 30.9.2024, more conditional statements
print("Welcome!")

# NEW FILE

# our example variables, we could ask these
# also from the user
age = 22
city = "Helsinki"

# our code should give instructions to adult
# users regarding their hometown and its health care services
# underage users should be directed to use their own school's
# health care services instead
if age >= 18:
    print("Adult instructions here!")

    # this if-statement is only run, if the user is an adult (over 18)
    if city == "Rovaniemi":
        print("Health care address for adults: Test Alley 12.")
    elif city == "Helsinki":
        print("Health care address for adults: Somewhere Road 52")

else:
    print("Underage students: contact your school's health care services!")

# NEW FILE

# Application description: Calculate train ticket price. The logic is this:
# Students get always 50% discount
# Other users pay full price + 2.5 € service fee
# if the ticket is over 100 €, no service fee

# ask user the needed variables, convert price to decimal format
status = input("Student or other? (s/o)\n")
price = input("Original ticket price? (€)\n")
price = float(price)

# make two different lanes for students and other users
if status == "s":
    # students get -50% off the price
    price = price * 0.5

elif status == "o":
    # Other users pay full price + 2.5 € service fee
    # if the ticket is over 100 €, no service fee

    # in other words: only add service fee if price is under 100
    if price < 100:
        price = price + 2.5

# round the value to two decimals (because it's money)
price = round(price, 2)
print(f"Final ticket price: {price} €")

# NEW FILE

# example variables
# humidity, 0-100%
humidity = 88
temperature = -5

# initialize the control boolean variable: raining
# the only purpose of this variable is to keep track of one question:
# is it raining or not at the moment
raining = False

# HERE YOU WOULD HAVE ALL THE POSSIBLE LOGIC
# THAT CAN ALTER THE CONDITION OF THE raining-variable
# FOR EXAMPLE 300-500 lines of code
if humidity > 80:
    raining = True

# another check, if temperature is subzero, it's no longer rain
if temperature < 0:
    raining = False

# with boolean logic, you usually have an if-statement
# like this that handles the final situation of the boolean variable
# if raining ===> if raining == True
# if not raining ===> if raining == False
if raining:
    print("It rains!")
else:
    print("It doesn't rain.")


# NEW FILE

# EXERCISE DESCRIPTION:

# Make an application that determines based on variables
# if it's a GOOD or BAD weather outside

# The logic of the weather is this:

# Bad weather: if temperature is less than +10C
# Bad weather: if humidity is over 80%
# Bad weather: if wind speed is over 2.5m/s
# Bad weather: if it's dark outside
# in this case, we can assume it's dark outside, if time is
# between 20-24 or 0-7

# initialize variables
temperature = 13
humidity = 65
wind_speed = 1.5
hour = 12

# helper variables
sun_down = 20
sun_rises = 7

# initialize our Boolean variable, that only keeps track of if the weather is good or not
# assume in the beginning the weather is good, and try to prove it otherwise with
# subsequent conditions
good_weather = True

# let's try to formulate this condition somehow
# if you start to have a condition like this, consider a helper Boolean variable
# to make the logic easier and more manageable
# if temperature < 10 or humidity > 80 or wind_speed > 2.5 or (time > sun_down and  ....)

# if temperature less than 10
if temperature < 10:
    good_weather = False

# if humidity over 80%
if humidity > 80:
    good_weather = False

# wind_speed check
if wind_speed > 2.5:
    good_weather = False

# most difficult condition: time regarding dark
if hour > sun_down or hour < sun_rises:
    good_weather = False


# all checks done, we can now use the Boolean for the final time
if good_weather:
    print("Good weather outside!")
else:
    print("Bad weather... :(")

# NEW FILE

# Exercise 1. Create an application that greets the user based on given
# hour of the current time. Convert the given hour into integer
# format.  Use the following logic while greeting the user:

# If hour is 05 - 11 : respond "Good morning"
# If hour is 12 - 17 : respond "Good afternoon"
# If hour is 18 - 21 : respond "Good evening"
# If hour is 22 - 04 : respond "Good night"

# VERSION 1: without the advanced feature

# PHASE 1: Ask the needed variables from user
hour = input("Give the current hour:\n")
hour = int(hour)

# PHASE 2: Program logic
# greet the user based on instructions above
if 5 <= hour <= 11:
    print("Good morning!")
elif 12 <= hour <= 17:
    print("Good afternoon!")
elif 18 <= hour <= 21:
    print("Good evening!")
else:
    print("Good night!")

# NEW FILE

# 1. Create an application that greets the user based on given
# hour of the current time. Convert the given hour into integer
# format.  Use the following logic while greeting the user:

# If hour is 05 - 11 : respond "Good morning"
# If hour is 12 - 17 : respond "Good afternoon"
# If hour is 18 - 21 : respond "Good evening"
# If hour is 22 - 04 : respond "Good night"

# Advanced feature:
# If the user doesn't give a time (empty text), use automatically
# the current hour of time (by using datetime-module). If the user
# chose the automatic hour, inform user:
# "Using current hour automatically."

# VERSION 2: automatic hour selection before the greeting supported

from datetime import datetime

# PHASE 1: Ask the needed variables from user
hour = input("Give the current hour:\n")

# if the user gave an empty text => use automatic time
# whether the code goes to if or else, the end result
# will be an integer variable called hour
if hour == "":
    # empty input => get current time from datetime
    timestamp = datetime.now()
    hour = int(timestamp.hour)
    print(f"Using current hour automatically: {hour}")
else:
    # use the user's original time
    hour = int(hour)

# in this spot, the hour has to be an integer
# and the following will work correctly

# PHASE 2: Program logic
# greet the user based on instructions above
if 5 <= hour <= 11:
    print("Good morning!")
elif 12 <= hour <= 17:
    print("Good afternoon!")
elif 18 <= hour <= 21:
    print("Good evening!")
else:
    print("Good night!")

# NEW FILE

# 2. Create a simple calculator application, where user can perform the
# following operations: +, -, * and /.
#
# In the beginning, ask the user two different numbers in float-format,
# and ask finally which operation they would like to perform between the numbers.
# After the questions, perform the selected operation between the numbers,
# if the selections were correct.

# If user selects division (/), check that the second number of the user
# is not 0. If user still gives a 0 as a second number, inform the user that
# we can't divide by zero. If user selects an operation that is not supported,
# inform the user: "Incorrect operation".

# Print the end result rounded to one decimal.

# PHASE 1: Get needed variables from user and convert data types
number1 = input("Give first number:\n")
number1 = float(number1)

number2 = input("Give second number:\n")
number2 = float(number2)

operation = input("Which operation would you like to perform? (+, -, *, /)\n")

# initialize a variable for the final result
result = 0

# PHASE 2: Program logic
if operation == "+":
    result = number1 + number2
elif operation == "-":
    result = number1 - number2
elif operation == "*":
    result = number1 * number2
elif operation == "/":
    if number2 == 0:
        print("Can't divide by zero.")
    else:
        result = number1 / number2
else:
    print("Incorrect operation")

# PHASE 3: round values and print result
result = round(result, 1)
print(f"Result: {result}")

# NEW FILE

# 3. Create an application that asks the user the name of the
# product and the amount of products they wish to buy. Also ask
# the user whether they have a discount voucher (yes/no).

# The pricing is the following:
# - smartphone = 599 € per item
# - computer = 899 € per item
# - coffee machine = 129 € per item

# Calculate the total price of the user's products.

# If the user has a discount voucher, reduce 15% from the total price.
# Finally, print the price rounded to two decimals, and inform them if a
# voucher was used to reduce the price.

# PHASE 1: Ask needed variables from user
product = input("Which product you wish to buy? (smartphone, computer, coffee machine)\n")
amount = input("How many items of this product would you like to buy?\n")
amount = int(amount)

# voucher, yes/no
discount = input("Do you have a discount voucher? (yes/no)\n")

# initialize result variable
total = 0

# PHASE 2: price logic
if product == "smartphone":
    total = amount * 599
elif product == "computer":
    total = amount * 899
elif product == "coffee machine":
    total = amount * 129
else:
    print("Unidentified product.")

# voucher logic
if discount == "yes":
    # 15% discount => 1 - 0.15 => 0.85
    total = total * 0.85

# PHASE 3: round values and print
total = round(total, 2)
print(f"Total price: {total} €")