



'''simple docstring'''




from math import cos, sin, sqrt, tau

from audio_filters.iir_filter import IIRFilter



def       __lowerCamelCase  (					_lowercase	,				_lowercase	,				_lowercase = 1 / sqrt(2		)		)      ->			IIRFilter:
							UpperCAmelCase     :		Optional[int]							     =		tau * frequency / samplerate
							UpperCAmelCase     :		Tuple							     =		sin(_lowerCAmelCase		)
							UpperCAmelCase     :		List[Any]							     =		cos(_lowerCAmelCase		)
							UpperCAmelCase     :		str							     =		_sin / (2 * q_factor)

							UpperCAmelCase     :		List[str]							     =		(1 - _cos) / 2
							UpperCAmelCase     :		Any							     =		1 - _cos

							UpperCAmelCase     :		int							     =		1 + alpha
							UpperCAmelCase     :		List[Any]							     =		-2 * _cos
							UpperCAmelCase     :		Optional[Any]							     =		1 - alpha

							UpperCAmelCase     :		Optional[Any]							     =		IIRFilter(2		)
							filt.set_coefficients([aa, aa, aa]	,				[ba, ba, ba]		)
							return filt



def       __lowerCamelCase  (					_lowercase	,				_lowercase	,				_lowercase = 1 / sqrt(2		)		)      ->			IIRFilter:
							UpperCAmelCase     :		Union[str, Any]							     =		tau * frequency / samplerate
							UpperCAmelCase     :		Dict							     =		sin(_lowerCAmelCase		)
							UpperCAmelCase     :		int							     =		cos(_lowerCAmelCase		)
							UpperCAmelCase     :		Dict							     =		_sin / (2 * q_factor)

							UpperCAmelCase     :		str							     =		(1 + _cos) / 2
							UpperCAmelCase     :		List[str]							     =		-1 - _cos

							UpperCAmelCase     :		Any							     =		1 + alpha
							UpperCAmelCase     :		List[str]							     =		-2 * _cos
							UpperCAmelCase     :		Optional[Any]							     =		1 - alpha

							UpperCAmelCase     :		Dict							     =		IIRFilter(2		)
							filt.set_coefficients([aa, aa, aa]	,				[ba, ba, ba]		)
							return filt



def       __lowerCamelCase  (					_lowercase	,				_lowercase	,				_lowercase = 1 / sqrt(2		)		)      ->			IIRFilter:
							UpperCAmelCase     :		Union[str, Any]							     =		tau * frequency / samplerate
							UpperCAmelCase     :		Tuple							     =		sin(_lowerCAmelCase		)
							UpperCAmelCase     :		List[Any]							     =		cos(_lowerCAmelCase		)
							UpperCAmelCase     :		str							     =		_sin / (2 * q_factor)

							UpperCAmelCase     :		List[str]							     =		_sin / 2
							UpperCAmelCase     :		Dict							     =		0
							UpperCAmelCase     :		str							     =		-ba

							UpperCAmelCase     :		Tuple							     =		1 + alpha
							UpperCAmelCase     :		int							     =		-2 * _cos
							UpperCAmelCase     :		Any							     =		1 - alpha

							UpperCAmelCase     :		List[str]							     =		IIRFilter(2		)
							filt.set_coefficients([aa, aa, aa]	,				[ba, ba, ba]		)
							return filt



def       __lowerCamelCase  (					_lowercase	,				_lowercase	,				_lowercase = 1 / sqrt(2		)		)      ->			IIRFilter:
							UpperCAmelCase     :		List[Any]							     =		tau * frequency / samplerate
							UpperCAmelCase     :		List[str]							     =		sin(_lowerCAmelCase		)
							UpperCAmelCase     :		Optional[int]							     =		cos(_lowerCAmelCase		)
							UpperCAmelCase     :		int							     =		_sin / (2 * q_factor)

							UpperCAmelCase     :		str							     =		1 - alpha
							UpperCAmelCase     :		Union[str, Any]							     =		-2 * _cos
							UpperCAmelCase     :		Optional[Any]							     =		1 + alpha

							UpperCAmelCase     :		Any							     =		IIRFilter(2		)
							filt.set_coefficients([ba, ba, ba]	,				[ba, ba, ba]		)
							return filt



def       __lowerCamelCase  (					_lowercase	,				_lowercase	,				_lowercase	,				_lowercase = 1 / sqrt(2		)	,				)      ->			IIRFilter:
							UpperCAmelCase     :		Optional[Any]							     =		tau * frequency / samplerate
							UpperCAmelCase     :		Optional[int]							     =		sin(_lowerCAmelCase		)
							UpperCAmelCase     :		Any							     =		cos(_lowerCAmelCase		)
							UpperCAmelCase     :		Tuple							     =		_sin / (2 * q_factor)
							UpperCAmelCase     :		Any							     =		1_0 ** (gain_db / 4_0)

							UpperCAmelCase     :		Optional[Any]							     =		1 + alpha * big_a
							UpperCAmelCase     :		int							     =		-2 * _cos
							UpperCAmelCase     :		List[Any]							     =		1 - alpha * big_a
							UpperCAmelCase     :		Any							     =		1 + alpha / big_a
							UpperCAmelCase     :		List[Any]							     =		-2 * _cos
							UpperCAmelCase     :		List[str]							     =		1 - alpha / big_a

							UpperCAmelCase     :		Optional[Any]							     =		IIRFilter(2		)
							filt.set_coefficients([aa, aa, aa]	,				[ba, ba, ba]		)
							return filt



def       __lowerCamelCase  (					_lowercase	,				_lowercase	,				_lowercase	,				_lowercase = 1 / sqrt(2		)	,				)      ->			IIRFilter:
							UpperCAmelCase     :		List[Any]							     =		tau * frequency / samplerate
							UpperCAmelCase     :		int							     =		sin(_lowerCAmelCase		)
							UpperCAmelCase     :		Tuple							     =		cos(_lowerCAmelCase		)
							UpperCAmelCase     :		Union[str, Any]							     =		_sin / (2 * q_factor)
							UpperCAmelCase     :		Optional[Any]							     =		1_0 ** (gain_db / 4_0)
							UpperCAmelCase     :		Tuple							     =		(big_a + 1) - (big_a - 1) * _cos
							UpperCAmelCase     :		Any							     =		(big_a + 1) + (big_a - 1) * _cos
							UpperCAmelCase     :		str							     =		(big_a - 1) - (big_a + 1) * _cos
							UpperCAmelCase     :		List[Any]							     =		(big_a - 1) + (big_a + 1) * _cos
							UpperCAmelCase     :		Tuple							     =		2 * sqrt(_lowerCAmelCase		) * alpha

							UpperCAmelCase     :		str							     =		big_a * (pmc + aaa)
							UpperCAmelCase     :		int							     =		2 * big_a * mpc
							UpperCAmelCase     :		Optional[Any]							     =		big_a * (pmc - aaa)
							UpperCAmelCase     :		Any							     =		ppmc + aaa
							UpperCAmelCase     :		Optional[Any]							     =		-2 * pmpc
							UpperCAmelCase     :		int							     =		ppmc - aaa

							UpperCAmelCase     :		Optional[Any]							     =		IIRFilter(2		)
							filt.set_coefficients([aa, aa, aa]	,				[ba, ba, ba]		)
							return filt



def       __lowerCamelCase  (					_lowercase	,				_lowercase	,				_lowercase	,				_lowercase = 1 / sqrt(2		)	,				)      ->			IIRFilter:
							UpperCAmelCase     :		Optional[int]							     =		tau * frequency / samplerate
							UpperCAmelCase     :		Union[str, Any]							     =		sin(_lowerCAmelCase		)
							UpperCAmelCase     :		Optional[int]							     =		cos(_lowerCAmelCase		)
							UpperCAmelCase     :		Optional[int]							     =		_sin / (2 * q_factor)
							UpperCAmelCase     :		int							     =		1_0 ** (gain_db / 4_0)
							UpperCAmelCase     :		Union[str, Any]							     =		(big_a + 1) - (big_a - 1) * _cos
							UpperCAmelCase     :		str							     =		(big_a + 1) + (big_a - 1) * _cos
							UpperCAmelCase     :		Tuple							     =		(big_a - 1) - (big_a + 1) * _cos
							UpperCAmelCase     :		Union[str, Any]							     =		(big_a - 1) + (big_a + 1) * _cos
							UpperCAmelCase     :		Dict							     =		2 * sqrt(_lowerCAmelCase		) * alpha

							UpperCAmelCase     :		str							     =		big_a * (ppmc + aaa)
							UpperCAmelCase     :		Any							     =		-2 * big_a * pmpc
							UpperCAmelCase     :		int							     =		big_a * (ppmc - aaa)
							UpperCAmelCase     :		str							     =		pmc + aaa
							UpperCAmelCase     :		Dict							     =		2 * mpc
							UpperCAmelCase     :		List[Any]							     =		pmc - aaa

							UpperCAmelCase     :		List[str]							     =		IIRFilter(2		)
							filt.set_coefficients([aa, aa, aa]	,				[ba, ba, ba]		)
							return filt








def 		A_				(     _lowerCAmelCase     )						-> str:
 UpperCamelCase	:					List[Any]       	=   ""
 for ch in key:
  if ch == " " or ch not in key_no_dups and ch.isalpha():
   key_no_dups += ch
 return key_no_dups



def 		A_				(     _lowerCAmelCase     )						-> dict[str, str]:
 UpperCamelCase	:					Optional[Any]       	=   [chr(i + 65     ) for i in range(26     )]
 # Remove duplicate characters from key
 UpperCamelCase	:					Tuple       	=   remove_duplicates(key.upper()     )
 UpperCamelCase	:					int       	=   len(_lowerCAmelCase     )
 # First fill cipher with key characters
 UpperCamelCase	:					int       	=   {alphabet[i]: char for i, char in enumerate(_lowerCAmelCase     )}
 # Then map remaining characters in alphabet to
 # the alphabet from the beginning
 for i in range(len(_lowerCAmelCase     )							,   26     ):
  UpperCamelCase	:					Optional[Any]       	=   alphabet[i - offset]
  # Ensure we are not mapping letters to letters previously mapped
  while char in key:
   offset -= 1
   UpperCamelCase	:					List[str]       	=   alphabet[i - offset]
  UpperCamelCase	:					List[Any]       	=   char
 return cipher_alphabet



def 		A_				(     _lowerCAmelCase							,   _lowerCAmelCase     )						-> str:
 return "".join(cipher_map.get(_lowerCAmelCase							,   _lowerCAmelCase     ) for ch in message.upper()     )



def 		A_				(     _lowerCAmelCase							,   _lowerCAmelCase     )						-> str:
 UpperCamelCase	:					Union[str, Any]       	=   {v: k for k, v in cipher_map.items()}
 return "".join(rev_cipher_map.get(_lowerCAmelCase							,   _lowerCAmelCase     ) for ch in message.upper()     )



def 		A_				(     )						-> None:
 UpperCamelCase	:					int       	=   input("Enter message to encode or decode: "     ).strip()
 UpperCamelCase	:					str       	=   input("Enter keyword: "     ).strip()
 UpperCamelCase	:					Union[str, Any]       	=   input("Encipher or decipher? E/D:"     ).strip()[0].lower()
 try:
  UpperCamelCase	:					List[str]       	=   {"e": encipher, "d": decipher}[option]
 except KeyError:
  raise KeyError("invalid input option"     )
 UpperCamelCase	:					str       	=   create_cipher_map(_lowerCAmelCase     )
 print(func(_lowerCAmelCase							,   _lowerCAmelCase     )     )


if __name__ == "__main__":
    import doctest

    doctest.testmod()
    main()
