Files
Argenta/src/argenta/command/flag/models.py
T
2025-04-28 02:21:34 +03:00

123 lines
3.6 KiB
Python

from typing import Literal, Pattern
from abc import ABC, abstractmethod
class BaseFlag(ABC):
def __init__(self, name: str,
prefix: Literal['-', '--', '---'] = '--') -> None:
"""
Private. Base class for flags
:param name: the name of the flag
:param prefix: the prefix of the flag
:return: None
"""
self._name = name
self._prefix = prefix
def get_string_entity(self) -> str:
"""
Public. Returns a string representation of the flag
:return: string representation of the flag as str
"""
string_entity: str = self._prefix + self._name
return string_entity
def get_name(self) -> str:
"""
Public. Returns the name of the flag
:return: the name of the flag as str
"""
return self._name
def get_prefix(self) -> str:
"""
Public. Returns the prefix of the flag
:return: the prefix of the flag as str
"""
return self._prefix
class Flag(BaseFlag):
def __init__(self, name: str,
prefix: Literal['-', '--', '---'] = '--',
possible_values: list[str] | Pattern[str] | False = True) -> None:
"""
Public. The entity of the flag being registered for subsequent processing
:param name: The name of the flag
:param prefix: The prefix of the flag
:param possible_values: The possible values of the flag, if False then the flag cannot have a value
:return: None
"""
super().__init__(name, prefix)
self.possible_values = possible_values
def validate_input_flag_value(self, input_flag_value: str | None):
"""
Private. Validates the input flag value
:param input_flag_value: The input flag value to validate
:return: whether the entered flag is valid as bool
"""
if self.possible_values is False:
if input_flag_value is None:
return True
else:
return False
elif isinstance(self.possible_values, Pattern):
if isinstance(input_flag_value, str):
is_valid = bool(self.possible_values.match(input_flag_value))
if bool(is_valid):
return True
else:
return False
else:
return False
elif isinstance(self.possible_values, list):
if input_flag_value in self.possible_values:
return True
else:
return False
else:
return True
class ValidInputFlag(BaseFlag):
def __init__(self, name: str,
prefix: Literal['-', '--', '---'] = '--',
value: str = None):
"""
Public. The entity of the flag of the entered command
:param name: the name of the input flag
:param prefix: the prefix of the input flag
:param value: the value of the input flag
:return: None
"""
super().__init__(name, prefix)
self._flag_value = value
def get_value(self) -> str | None:
"""
Public. Returns the value of the flag
:return: the value of the flag as str
"""
return self._flag_value
def set_value(self, value):
"""
Private. Sets the value of the flag
:param value: the fag value to set
:return: None
"""
self._flag_value = value
class UndefinedInputFlag(ValidInputFlag): pass
class InvalidValueInputFlag(ValidInputFlag): pass