# A gateway in necessary as a web server cannot communicate directly with Python.
# In this case, imports are focused on generating hash code to protect passwords.
from werkzeug.security import generate_password_hash, check_password_hash
import json

# Define a User Class/Template
# -- A User represents the data we want to manage
class User:    
    # constructor of a User object, initializes the instance variables within object (self)
    def __init__(self, name, email, uid, password):
        self._name = name    # variables with self prefix become part of the object, 
        self._email = email
        self._uid = uid
        self.set_password(password)

    # a name getter method, extracts name from object
    @property
    def name(self):
        return self._name
    
    # a setter function, allows name to be updated after initial object creation
    @name.setter
    def name(self, name):
        self._name = name
    
    @property
    def email(self):
        return self._email

    @email.setter
    def email(self, email):
        self._email = email
    
    # a getter method, extracts email from object
    @property
    def uid(self):
        return self._uid
    
    # a setter function, allows name to be updated after initial object creation
    @uid.setter
    def uid(self, uid):
        self._uid = uid
        
    # check if uid parameter matches user id in object, return boolean
    def is_uid(self, uid):
        return self._uid == uid
    
    @property
    def password(self):
        return self._password[0:10] + "..." # because of security only show 1st characters

    # update password, this is conventional setter
    def set_password(self, password):
        """Create a hashed password."""
        self._password = generate_password_hash(password, method='sha256')

    # check password parameter versus stored/encrypted password
    def is_password(self, password):
        """Check against hashed password."""
        result = check_password_hash(self._password, password)
        return result
    
    # output content using str(object) in human readable form, uses getter
    def __str__(self):
        return f'name: "{self.name}", id: "{self.uid}", psw: "{self.password}"'

    # output command to recreate the object, uses attribute directly
    def __repr__(self):
        return f'Person(name={self._name}, uid={self._uid}, password={self._password})'
    
    def __dir__(self):
        return ["name", "uid"]


# tester method to print users
def tester(users, uid, psw):
    result = None
    for user in users:
        # test for match in database
        if user.uid == uid and user.is_password(psw):  # check for match
            print("* ", end="")
            result = user
        # print using __str__ method
        print(str(user))
    return result
        

# place tester code inside of special if!  This allows include without tester running
if __name__ == "__main__":

    # define user objects
    u1 = User(name='Thomas Edison', uid='toby', password='123toby')
    u2 = User(name='Nicholas Tesla', uid='nick', password='123nick')
    u3 = User(name='Alexander Graham Bell', uid='lex', password='123lex')
    u4 = User(name='Eli Whitney', uid='eli', password='123eli')
    u5 = User(name='Hedy Lemarr', uid='hedy', password='123hedy')

    # put user objects in list for convenience
    users = [u1, u2, u3, u4, u5]

    # Find user
    print("Test 1, find user 3")
    u = tester(users, u3.uid, "123lex")


    # Change user
    print("Test 2, change user 3")
    u.name = "John Mortensen"
    u.uid = "jm1021"
    u.set_password("123qwerty")
    u = tester(users, u.uid, "123qwerty")


    # Make dictionary
    ''' 
    The __dict__ in Python represents a dictionary or any mapping object that is used to store the attributes of the object. 
    Every object in Python has an attribute that is denoted by __dict__. 
    Use the json.dumps() method to convert the list of Users to a JSON string.
    '''
    print("Test 3, make a dictionary")
    json_string = json.dumps([user.__dict__ for user in users]) 
    print(json_string)

    print("Test 4, make a dictionary")
    json_string = json.dumps([vars(user) for user in users]) 
    print(json_string)
# A gateway in necessary as a web server cannot communicate directly with Python.
# In this case, imports are focused on generating hash code to protect passwords.
from werkzeug.security import generate_password_hash, check_password_hash
import json
from datetime import date

def calculate_age(born):
    today = date.today()
    return today.year - born.year - ((today.month, today.day) < (born.month, born.day))

# Define a User Class/Template
# -- A User represents the data we want to manage
class User:    
    # constructor of a User object, initializes the instance variables within object (self)
    def __init__(self, name, classOf, yob, mob, age, uid, password):
        self._name = name    # variables with self prefix become part of the object, 
        self._classOf = classOf
        self._uid = uid
        self.set_password(password)
        self._yob = yob
        self._age = age
        self._mob = mob

    # a name getter method, extracts name from object
    @property
    def name(self):
        return self._name
    
    # a setter function, allows name to be updated after initial object creation
    @name.setter
    def name(self, name):
        self._name = name

    @property
    def classOf(self):
        return self._classOf

    @classOf.setter
    def classOf(self, classOf):
        self._classOf = classOf
    
    @property
    def yob(self):
        return self._yob

    @yob.setter
    def yob(self, yob):
        self._yob = yob

    @property
    def mob(self):
        return self._mob

    @yob.setter
    def mob(self, mob):
        self._mob = mob

    @property
    def age(self):
        return self._age
    
    # a getter method, extracts email from object
    @property
    def uid(self):
        return self._uid
    
    # a setter function, allows name to be updated after initial object creation
    @uid.setter
    def uid(self, uid):
        self._uid = uid
        
    # check if uid parameter matches user id in object, return boolean
    def is_uid(self, uid):
        return self._uid == uid
    
    @property
    def password(self):
        return self._password[0:10] + "..." # because of security only show 1st characters

    # update password, this is conventional setter
    def set_password(self, password):
        """Create a hashed password."""
        self._password = generate_password_hash(password, method='sha256')

    # check password parameter versus stored/encrypted password
    def is_password(self, password):
        """Check against hashed password."""
        result = check_password_hash(self._password, password)
        return result
    
    # output content using str(object) in human readable form, uses getter
    def __str__(self):
        return f'name: "{self.name}", classOf: "{self.classOf}", yob: "{self.yob}", mob: "{self.mob}", age: "{self.age}", id: "{self.uid}", psw: "{self.password}"'

    # output command to recreate the object, uses attribute directly
    def __repr__(self):
        return f'Person(name={self._name}, classOf={self._classOf}, yob={self._yob}, mob={self._mob}, age={self._age}, uid={self._uid}, password={self._password})'


# tester method to print users
def tester(users, uid, psw):
    result = None
    for user in users:
        # test for match in database
        if user.uid == uid and user.is_password(psw):  # check for match
            print("* ", end="")
            result = user
        # print using __str__ method
        print(str(user))
    return result
        

# place tester code inside of special if!  This allows include without tester running
if __name__ == "__main__":

    # define user objects
    u1 = User(name='Thomas Edison', classOf='2010', yob='1999', mob='5', age='22', uid='toby', password='123toby')
    u2 = User(name='Nicholas Tesla', classOf='2020', yob='1999', mob='5', age='22', uid='nick', password='123nick')
    u3 = User(name='Alexander Graham Bell', classOf='2013', yob='1999', mob='5', age='22', uid='lex', password='123lex')
    u4 = User(name='Eli Whitney', classOf='2017', uid='eli', yob='1999', mob='5', age='22', password='123eli')
    u5 = User(name='Hedy Lemarr', classOf='2024', uid='hedy', yob='1999', mob='5', age='22', password='123hedy')

    # put user objects in list for convenience
    users = [u1, u2, u3, u4, u5]

    # Find user
    print("Test 1, find user 3")
    u = tester(users, u3.uid, "123lex")


    # Change user
    print("Test 2, change user 3")
    u.name = "John Mortensen"
    u.classOf = "2000"
    u.yob = "1997"
    u.mob = "9"
    u.uid = "jm1021"
    u.set_password("123qwerty")
    u = tester(users, u.uid, "123qwerty")


    # Make dictionary
    ''' 
    The __dict__ in Python represents a dictionary or any mapping object that is used to store the attributes of the object. 
    Every object in Python has an attribute that is denoted by __dict__. 
    Use the json.dumps() method to convert the list of Users to a JSON string.
    '''
    print("Test 3, make a dictionary")
    json_string = json.dumps([user.__dict__ for user in users]) 
    print(json_string)

    print("Test 4, make a dictionary")
    json_string = json.dumps([vars(user) for user in users]) 
    print(json_string)
Test 1, find user 3
name: "Thomas Edison", classOf: "2010", dob: "1999", age: "22", id: "toby", psw: "sha256$vjV..."
name: "Nicholas Tesla", classOf: "2020", dob: "1999", age: "22", id: "nick", psw: "sha256$Hir..."
* name: "Alexander Graham Bell", classOf: "2013", dob: "1999", age: "22", id: "lex", psw: "sha256$TGZ..."
name: "Eli Whitney", classOf: "2017", dob: "1999", age: "22", id: "eli", psw: "sha256$7Ph..."
name: "Hedy Lemarr", classOf: "2024", dob: "1999", age: "22", id: "hedy", psw: "sha256$jAi..."
Test 2, change user 3
name: "Thomas Edison", classOf: "2010", dob: "1999", age: "22", id: "toby", psw: "sha256$vjV..."
name: "Nicholas Tesla", classOf: "2020", dob: "1999", age: "22", id: "nick", psw: "sha256$Hir..."
* name: "John Mortensen", classOf: "2000", dob: "1997", age: "22", id: "jm1021", psw: "sha256$Lsh..."
name: "Eli Whitney", classOf: "2017", dob: "1999", age: "22", id: "eli", psw: "sha256$7Ph..."
name: "Hedy Lemarr", classOf: "2024", dob: "1999", age: "22", id: "hedy", psw: "sha256$jAi..."
Test 3, make a dictionary
[{"_name": "Thomas Edison", "_classOf": "2010", "_uid": "toby", "_password": "sha256$vjViGcvUtpZbV47j$c031fbe8ba635be3a3b0feaf90f844f7861b016df560ad16a6e6f9b5e741e99c", "_dob": "1999", "_age": "22"}, {"_name": "Nicholas Tesla", "_classOf": "2020", "_uid": "nick", "_password": "sha256$Hirs8dHvYwD2VUPo$09b85a8d06e45662f19eabc0d69a42307709a253ef9a7c047161f621e456b3fc", "_dob": "1999", "_age": "22"}, {"_name": "John Mortensen", "_classOf": "2000", "_uid": "jm1021", "_password": "sha256$Lshj8f27DF3KyRbD$42178580d4dcff9b070fa4dd9bb6fe80e3d069e1bdfc1e281e5a41622450f709", "_dob": "1997", "_age": "22"}, {"_name": "Eli Whitney", "_classOf": "2017", "_uid": "eli", "_password": "sha256$7PhZIHXM4NrNbI3q$d59d9d062b5ac51cfb49ea828eb37d9eef90d119351f71fe986ac51b85b52824", "_dob": "1999", "_age": "22"}, {"_name": "Hedy Lemarr", "_classOf": "2024", "_uid": "hedy", "_password": "sha256$jAiCr1tBA1BMFNgK$5370d95ca395b2c42441948c0122c23ecda4a2a6ef7fb966946a40fd4e30904b", "_dob": "1999", "_age": "22"}]
Test 4, make a dictionary
[{"_name": "Thomas Edison", "_classOf": "2010", "_uid": "toby", "_password": "sha256$vjViGcvUtpZbV47j$c031fbe8ba635be3a3b0feaf90f844f7861b016df560ad16a6e6f9b5e741e99c", "_dob": "1999", "_age": "22"}, {"_name": "Nicholas Tesla", "_classOf": "2020", "_uid": "nick", "_password": "sha256$Hirs8dHvYwD2VUPo$09b85a8d06e45662f19eabc0d69a42307709a253ef9a7c047161f621e456b3fc", "_dob": "1999", "_age": "22"}, {"_name": "John Mortensen", "_classOf": "2000", "_uid": "jm1021", "_password": "sha256$Lshj8f27DF3KyRbD$42178580d4dcff9b070fa4dd9bb6fe80e3d069e1bdfc1e281e5a41622450f709", "_dob": "1997", "_age": "22"}, {"_name": "Eli Whitney", "_classOf": "2017", "_uid": "eli", "_password": "sha256$7PhZIHXM4NrNbI3q$d59d9d062b5ac51cfb49ea828eb37d9eef90d119351f71fe986ac51b85b52824", "_dob": "1999", "_age": "22"}, {"_name": "Hedy Lemarr", "_classOf": "2024", "_uid": "hedy", "_password": "sha256$jAiCr1tBA1BMFNgK$5370d95ca395b2c42441948c0122c23ecda4a2a6ef7fb966946a40fd4e30904b", "_dob": "1999", "_age": "22"}]