# Chapter3.py

# Relational Operators page 67
## > < >= <= == etc...
## lower order a-z   A-Z   0-9  spec  higher order
### is bob > Bob  False
###  9 > B True

# Logical Operators page 69
## and or not
## if you use a logical the variable to be tested HAS TO BE on both sides of the test, even if the variable name is the same
###  age > 18 and age < 21
### age > 18 or state = "FL"


# lower(), upper() and title() page 71
## changing case types
## only be called with string data type or char data type
## .lower()   firstname.title()  emailadd.lower()

# if else statement page 73
## if elif else 
### if is the only required keyword
### else if to retest the False return keyword is elif (you can have multiple retests for the false)
#### DRY Principle "Dont Repeat Yourself" repeat else if 3x think about 'is there a way to do this better'
### else is called when the final False is passed (only have 1 call to else)

state = input("Enter your state: ") # data type string
# florida FLOrida  FloRida FLORIDA
print(state) # florida lower case
state = state.title()
print(state) # Florida

# Ask the user for there age, and we will use it MOSTLY as an integer. Print the age variable after the user enters it. Name the variable 'age'.

# while loop page 85

# control variable "controls the loop"
age = int( input("Enter your age: ") ) # MOSTLY
print(age)
choice = "yes"

while age > 0 and age < 99: # if !TRUE break
   
    # run the code for the VALID age range
    if age < 18 and state == "Florida": # : specifies sub operator
        # tab indent or 4 nb spaces
        print("You can not rent a car.")
        # conditional return age < 18 and state =="Florida"
        if age >= 16: # nested if page 77
            print(f"You need a parents signature to rent a car at {age} in {state}")
    elif age < 18 and state == "Iowa": # any state input NOT EQUAL to "Florida"
        print("You can rent a car in Iowa for a max of 5 days.")
    elif age < 18:
        print("You can rent a car with no restrictions.")

    # If you have to keep adding addition state tests, ask yourself, is there a better way to do this? match/loop/etc...
    # match keyword is available in Python 3.10 and above "switch/case"
    # for x in ys loop
    # re pattern matching

    # because of the while keyword age > 0 or age < 99
    else: # anything that finally returns false
        print("Age and State are not limited when renting a car")

    choice = input("Do you want to check other ages and states: (yes/no): ")
    choice = choice.lower()

print("Break from either INVALID AGE or user entering No in the loop")



# EOF Chapter3.py