import re
class URLExtractor:
"""A class to extract and manipulate URLs containing currency conversion data from bytebank.com."""
def __init__(self, url):
"""Initialize the URLExtractor object and extract the parameters of the input URL."""
self.url = self.sanitize_url(url)
self.validate_url()
self.url_parts = self.url.split("?")
self.parameters = self.extract_parameters()
@staticmethod
def sanitize_url(url):
"""Remove unwanted characters from the URL."""
return url.replace(" ", "").strip() if isinstance(url, str) else ""
@staticmethod
def is_valid_url(url):
"""Check if the URL is valid and contains all required components."""
default_url = re.compile(
'(http(s)?://)?(www.)?bytebank.com(.br)?/cambio')
required_params = ["quantidade", "moedaOrigem", "moedaDestino"]
return bool(default_url.match(url)) and all(
param in url for param in required_params)
def validate_url(self):
"""Verify that the input URL is valid and contains all required components."""
if not self.url:
raise ValueError("The URL is empty.")
elif not self.is_valid_url(self.url):
raise ValueError("The URL is not valid.")
def get_url_base(self):
"""Return the base URL without parameters."""
return self.url_parts[0]
def get_url_parameters(self):
"""Return the URL parameters as a single string."""
return self.url_parts[1]
def extract_parameters(self):
"""Extract the parameters from the URL as a dictionary."""
url_parameters = self.get_url_parameters()
parameters = url_parameters.split("&")
return {
param.split("=")[0]: param.split("=")[1]
for param in parameters
}
def get_parameter(self, key):
"""Get the value of a specific parameter in the URL."""
return self.parameters.get(key)
def print_with_newline(self, *args):
"""Print the arguments, ending with a newline character."""
print(*args, end="\n")
