






"""simple docstring"""



from __future__ import annotations

A__	:    Any			 = tuple[int, int, int]
A__	:    Any			 = tuple[str, str, str]


# used alphabet --------------------------
# from string.ascii_uppercase
A__	:    Optional[Any]			 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

# -------------------------- default selection --------------------------
# rotors --------------------------
A__	:    List[Any]			 = 'EGZWVONAHDCLFQMSIPJBYUKXTR'
A__	:    Dict			 = 'FOBHMDKEXQNRAULPGSJVTYICZW'
A__	:    List[Any]			 = 'ZJXESIUQLHAVRMDOYGTNFWPBKC'
# reflector --------------------------
A__	:    Optional[Any]			 = {
    'A': 'N',
    'N': 'A',
    'B': 'O',
    'O': 'B',
    'C': 'P',
    'P': 'C',
    'D': 'Q',
    'Q': 'D',
    'E': 'R',
    'R': 'E',
    'F': 'S',
    'S': 'F',
    'G': 'T',
    'T': 'G',
    'H': 'U',
    'U': 'H',
    'I': 'V',
    'V': 'I',
    'J': 'W',
    'W': 'J',
    'K': 'X',
    'X': 'K',
    'L': 'Y',
    'Y': 'L',
    'M': 'Z',
    'Z': 'M',
}

# -------------------------- extra rotors --------------------------
A__	:    Dict			 = 'RMDJXFUWGISLHVTCQNKYPBEZOA'
A__	:    Optional[int]			 = 'SGLCPQWZHKXAREONTFBVIYJUDM'
A__	:    Any			 = 'HVSICLTYKQUBXDWAJZOMFGPREN'
A__	:    Union[str, Any]			 = 'RZWQHFMVDBKICJLNTUXAGYPSOE'
A__	:    List[str]			 = 'LFKIJODBEGAMQPXVUHYSTCZRWN'
A__	:    Tuple			 = 'KOAEGVDHXPQZMLFTYWJNBRCIUS'

def 			_snake_case    (					lowerCamelCase__     :   RotorPositionT    ,						lowerCamelCase__     :   RotorSelectionT    ,						lowerCamelCase__     :   str  )    ->     tuple[RotorPositionT, RotorSelectionT, dict[str, str]]:
							# Checks if there are 3 unique rotors

							if (unique_rotsel := len(set(lowerCamelCase__  )  )) < 3:
														lowerCamelCase_	:							int									=F"""Please use 3 unique rotors (not {unique_rotsel})"""
														raise Exception(lowerCamelCase__  )

							# Checks if rotor positions are valid
							lowerCamelCase_							,						lowerCamelCase_							,						lowerCamelCase_	:							Tuple									=rotpos
							if not 0 < rotorposa <= len(lowerCamelCase__  ):
														lowerCamelCase_	:							Optional[int]									=F"""First rotor position is not within range of 1..26 ({rotorposa}"""
														raise ValueError(lowerCamelCase__  )
							if not 0 < rotorposa <= len(lowerCamelCase__  ):
														lowerCamelCase_	:							Union[str, Any]									=F"""Second rotor position is not within range of 1..26 ({rotorposa})"""
														raise ValueError(lowerCamelCase__  )
							if not 0 < rotorposa <= len(lowerCamelCase__  ):
														lowerCamelCase_	:							Tuple									=F"""Third rotor position is not within range of 1..26 ({rotorposa})"""
														raise ValueError(lowerCamelCase__  )

							# Validates string and returns dict
							lowerCamelCase_	:							Tuple									=_plugboard(lowerCamelCase__  )

							return rotpos, rotsel, pbdict

def 			_snake_case    (					lowerCamelCase__     :   str  )    ->     dict[str, str]:

							# tests the input string if it
							# a) is type string
							# b) has even length (so pairs can be made)
							if not isinstance(lowerCamelCase__    ,						lowerCamelCase__  ):
														lowerCamelCase_	:							Tuple									=F"""Plugboard setting isn't type string ({type(lowerCamelCase__  )})"""
														raise TypeError(lowerCamelCase__  )
							elif len(lowerCamelCase__  ) % 2 != 0:
														lowerCamelCase_	:							List[Any]									=F"""Odd number of symbols ({len(lowerCamelCase__  )})"""
														raise Exception(lowerCamelCase__  )
							elif pbstring == "":
														return {}

							pbstring.replace(" "    ,						""  )

							# Checks if all characters are unique
							lowerCamelCase_	:							str									=set()
							for i in pbstring:
														if i not in abc:
																					lowerCamelCase_	:							Dict									=F"""'{i}' not in list of symbols"""
																					raise Exception(lowerCamelCase__  )
														elif i in tmppbl:
																					lowerCamelCase_	:							str									=F"""Duplicate symbol ({i})"""
																					raise Exception(lowerCamelCase__  )
														else:
																					tmppbl.add(lowerCamelCase__  )
							del tmppbl

							# Created the dictionary
							lowerCamelCase_	:							List[Any]									={}
							for j in range(0    ,						len(lowerCamelCase__  ) - 1    ,						2  ):
														lowerCamelCase_	:							Union[str, Any]									=pbstring[j + 1]
														lowerCamelCase_	:							List[Any]									=pbstring[j]

							return pb

def 			_snake_case    (					lowerCamelCase__     :   str    ,						lowerCamelCase__     :   RotorPositionT    ,						lowerCamelCase__     :   RotorSelectionT = (rotora, rotora, rotora)    ,						lowerCamelCase__     :   str = ""    ,						)    ->     str:
							lowerCamelCase_	:							List[str]									=text.upper()
							lowerCamelCase_							,						lowerCamelCase_							,						lowerCamelCase_	:							Optional[int]									=_validator(
							    lowerCamelCase__    ,						lowerCamelCase__    ,						plugb.upper()  )

							lowerCamelCase_							,						lowerCamelCase_							,						lowerCamelCase_	:							List[str]									=rotor_position
							lowerCamelCase_							,						lowerCamelCase_							,						lowerCamelCase_	:							str									=rotor_selection
							rotorposa -= 1
							rotorposa -= 1
							rotorposa -= 1

							lowerCamelCase_	:							Union[str, Any]									=[]

							# encryption/decryption process --------------------------
							for symbol in text:
														if symbol in abc:
																					# 1st plugboard --------------------------
																					if symbol in plugboard:
																												lowerCamelCase_	:							Dict									=plugboard[symbol]

																					# rotor ra --------------------------
																					lowerCamelCase_	:							int									=abc.index(lowerCamelCase__  ) + rotorposa
																					lowerCamelCase_	:							Dict									=rotora[index % len(lowerCamelCase__  )]

																					# rotor rb --------------------------
																					lowerCamelCase_	:							Optional[int]									=abc.index(lowerCamelCase__  ) + rotorposa
																					lowerCamelCase_	:							List[Any]									=rotora[index % len(lowerCamelCase__  )]

																					# rotor rc --------------------------
																					lowerCamelCase_	:							Any									=abc.index(lowerCamelCase__  ) + rotorposa
																					lowerCamelCase_	:							Any									=rotora[index % len(lowerCamelCase__  )]

																					# reflector --------------------------
																					# this is the reason you don't need another machine to decipher

																					lowerCamelCase_	:							Any									=reflector[symbol]

																					# 2nd rotors
																					lowerCamelCase_	:							Tuple									=abc[rotora.index(lowerCamelCase__  ) - rotorposa]
																					lowerCamelCase_	:							Union[str, Any]									=abc[rotora.index(lowerCamelCase__  ) - rotorposa]
																					lowerCamelCase_	:							Tuple									=abc[rotora.index(lowerCamelCase__  ) - rotorposa]

																					# 2nd plugboard
																					if symbol in plugboard:
																												lowerCamelCase_	:							int									=plugboard[symbol]

																					# moves/resets rotor positions
																					rotorposa += 1
																					if rotorposa >= len(lowerCamelCase__  ):
																												lowerCamelCase_	:							Tuple									=0
																												rotorposa += 1
																					if rotorposa >= len(lowerCamelCase__  ):
																												lowerCamelCase_	:							List[str]									=0
																												rotorposa += 1
																					if rotorposa >= len(lowerCamelCase__  ):
																												lowerCamelCase_	:							Tuple									=0

        # else:
        #    pass
        #    Error could be also raised
        #    raise ValueError(
        #       'Invalid symbol('+repr(symbol)+')')
														result.append(lowerCamelCase__  )

							return "".join(lowerCamelCase__  )


if __name__ == "__main__":
						A__	:    List[Any]			 = 'This is my Python script that emulates the Enigma machine from WWII.'
						A__	:    Union[str, Any]			 = (1, 1, 1)
						A__	:    int			 = 'pictures'
						A__	:    Union[str, Any]			 = (rotora, rotora, rotora)
						A__	:    int			 = enigma(message, rotor_pos, rotor_sel, pb)

						print('Encrypted message:', en)
						print('Decrypted message:', enigma(en, rotor_pos, rotor_sel, pb))











"""simple docstring"""



def 			_snake_case    (					lowerCamelCase__     :   Optional[Any]  )    ->     Optional[int]:
							if not head:
														return True
							# split the list to two parts
							lowerCamelCase_							,						lowerCamelCase_	:							Union[str, Any]									=head.next, head
							while fast and fast.next:
														lowerCamelCase_	:							Optional[Any]									=fast.next.next
														lowerCamelCase_	:							str									=slow.next
							lowerCamelCase_	:							Tuple									=slow.next
							lowerCamelCase_	:							Any									=None  # Don't forget here! But forget still works!
							# reverse the second part
							lowerCamelCase_	:							List[str]									=None
							while second:
														lowerCamelCase_	:							Any									=second.next
														lowerCamelCase_	:							Union[str, Any]									=node
														lowerCamelCase_	:							Union[str, Any]									=second
														lowerCamelCase_	:							Optional[Any]									=nxt
							# compare two parts
							# second part has the same or one less node
							while node:
														if node.val != head.val:
																					return False
														lowerCamelCase_	:							List[str]									=node.next
														lowerCamelCase_	:							Optional[Any]									=head.next
							return True

def 			_snake_case    (					lowerCamelCase__     :   str  )    ->     Optional[int]:
							if not head or not head.next:
														return True

							# 1. Get the midpoint (slow)
							lowerCamelCase_	:							List[str]									=head
							while fast and fast.next:
														lowerCamelCase_							,						lowerCamelCase_	:							Union[str, Any]									=fast.next.next, slow.next

							# 2. Push the second half into the stack
							lowerCamelCase_	:							List[Any]									=[slow.val]
							while slow.next:
														lowerCamelCase_	:							List[Any]									=slow.next
														stack.append(slow.val  )

							# 3. Comparison
							while stack:
														if stack.pop() != cur.val:
																					return False
														lowerCamelCase_	:							Union[str, Any]									=cur.next

							return True

def 			_snake_case    (					lowerCamelCase__     :   Dict  )    ->     Optional[Any]:
							if not head or not head.next:
														return True
							lowerCamelCase_	:							Union[str, Any]									={}
							lowerCamelCase_	:							List[Any]									=0
							while head:
														if head.val in d:
																					d[head.val].append(lowerCamelCase__  )
														else:
																					lowerCamelCase_	:							List[str]									=[pos]
														lowerCamelCase_	:							Optional[int]									=head.next
														pos += 1
							lowerCamelCase_	:							Union[str, Any]									=pos - 1
							lowerCamelCase_	:							Optional[int]									=0
							for v in d.values():
														if len(lowerCamelCase__  ) % 2 != 0:
																					middle += 1
														else:
																					lowerCamelCase_	:							Optional[Any]									=0
																					for i in range(0    ,						len(lowerCamelCase__  )  ):
																												if v[i] + v[len(lowerCamelCase__  ) - 1 - step] != checksum:
																																			return False
																												step += 1
														if middle > 1:
																					return False
							return True



