





from __future__ import annotations

_UpperCAmelCase							:			Optional[Any]        =							tuple[int, int, int]
_UpperCAmelCase							:			Optional[Any]        =							tuple[str, str, str]


# used alphabet --------------------------
# from string.ascii_uppercase
_UpperCAmelCase							:			Any        =							"""ABCDEFGHIJKLMNOPQRSTUVWXYZ"""

# -------------------------- default selection --------------------------
# rotors --------------------------
_UpperCAmelCase							:			Tuple        =							"""EGZWVONAHDCLFQMSIPJBYUKXTR"""
_UpperCAmelCase							:			List[str]        =							"""FOBHMDKEXQNRAULPGSJVTYICZW"""
_UpperCAmelCase							:			int        =							"""ZJXESIUQLHAVRMDOYGTNFWPBKC"""
# reflector --------------------------
_UpperCAmelCase							:			int        =							{
    """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 --------------------------
_UpperCAmelCase							:			Optional[Any]        =							"""RMDJXFUWGISLHVTCQNKYPBEZOA"""
_UpperCAmelCase							:			Any        =							"""SGLCPQWZHKXAREONTFBVIYJUDM"""
_UpperCAmelCase							:			List[Any]        =							"""HVSICLTYKQUBXDWAJZOMFGPREN"""
_UpperCAmelCase							:			List[Any]        =							"""RZWQHFMVDBKICJLNTUXAGYPSOE"""
_UpperCAmelCase							:			List[Any]        =							"""LFKIJODBEGAMQPXVUHYSTCZRWN"""
_UpperCAmelCase							:			Union[str, Any]        =							"""KOAEGVDHXPQZMLFTYWJNBRCIUS"""


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

    if (unique_rotsel := len(set(_UpperCAmelCase					)					)) < 3:
        lowerCamelCase__       : Optional[Any]   					=						F"""Please use 3 unique rotors (not {unique_rotsel})"""
        raise Exception(_UpperCAmelCase					)

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

    # Validates string and returns dict
    lowerCamelCase__       : List[str]   					=						_plugboard(_UpperCAmelCase					)

    return rotpos, rotsel, pbdict


def 			SCREAMING_SNAKE_CASE (			_UpperCAmelCase					)     ->	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(_UpperCAmelCase		,      _UpperCAmelCase					):
        lowerCamelCase__       : str   					=						F"""Plugboard setting isn't type string ({type(_UpperCAmelCase					)})"""
        raise TypeError(_UpperCAmelCase					)
    elif len(_UpperCAmelCase					) % 2 != 0:
        lowerCamelCase__       : Optional[Any]   					=						F"""Odd number of symbols ({len(_UpperCAmelCase					)})"""
        raise Exception(_UpperCAmelCase					)
    elif pbstring == "":
        return {}

    pbstring.replace(' '		,      ''					)

    # Checks if all characters are unique
    lowerCamelCase__       : Union[str, Any]   					=						set()
    for i in pbstring:
        if i not in abc:
            lowerCamelCase__       : Tuple   					=						F"""'{i}' not in list of symbols"""
            raise Exception(_UpperCAmelCase					)
        elif i in tmppbl:
            lowerCamelCase__       : List[Any]   					=						F"""Duplicate symbol ({i})"""
            raise Exception(_UpperCAmelCase					)
        else:
            tmppbl.add(_UpperCAmelCase					)
    del tmppbl

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

    return pb


def 			SCREAMING_SNAKE_CASE (			_UpperCAmelCase		,      _UpperCAmelCase		,      _UpperCAmelCase = (rotora, rotora, rotora)		,      _UpperCAmelCase = ""		,      )     ->	str:
    lowerCamelCase__       : Any   					=						text.upper()
    lowerCamelCase__					,				lowerCamelCase__					,				lowerCamelCase__       : Union[str, Any]   					=						_validator(
        _UpperCAmelCase		,      _UpperCAmelCase		,      plugb.upper()					)

    lowerCamelCase__					,				lowerCamelCase__					,				lowerCamelCase__       : int   					=						rotor_position
    lowerCamelCase__					,				lowerCamelCase__					,				lowerCamelCase__       : Dict   					=						rotor_selection
    rotorposa -= 1
    rotorposa -= 1
    rotorposa -= 1

    lowerCamelCase__       : Tuple   					=						[]

    # encryption/decryption process --------------------------
    for symbol in text:
        if symbol in abc:
            # 1st plugboard --------------------------
            if symbol in plugboard:
                lowerCamelCase__       : List[Any]   					=						plugboard[symbol]

            # rotor ra --------------------------
            lowerCamelCase__       : List[str]   					=						abc.index(_UpperCAmelCase					) + rotorposa
            lowerCamelCase__       : str   					=						rotora[index % len(_UpperCAmelCase					)]

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

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

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

            lowerCamelCase__       : List[str]   					=						reflector[symbol]

            # 2nd rotors
            lowerCamelCase__       : int   					=						abc[rotora.index(_UpperCAmelCase					) - rotorposa]
            lowerCamelCase__       : List[Any]   					=						abc[rotora.index(_UpperCAmelCase					) - rotorposa]
            lowerCamelCase__       : int   					=						abc[rotora.index(_UpperCAmelCase					) - rotorposa]

            # 2nd plugboard
            if symbol in plugboard:
                lowerCamelCase__       : Tuple   					=						plugboard[symbol]

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

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

    return "".join(_UpperCAmelCase					)


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

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












from __future__ import annotations

import unittest

from transformers import is_tf_available
from transformers.testing_utils import require_sentencepiece, require_tf, require_tokenizers, slow


if is_tf_available():
    import tensorflow as tf

    from transformers import AutoTokenizer, TFAutoModelForSeqaSeqLM

@require_tf
@require_sentencepiece
@require_tokenizers
class   lowerCAmelCase				(   unittest.TestCase     ):
 @slow
 def 	A_      ( self    : int      )     ->      Optional[Any]:
     lowerCamelCase__       : Tuple   					=						TFAutoModelForSeqaSeqLM.from_pretrained('google/mt5-small'      )
     lowerCamelCase__       : Any   					=						AutoTokenizer.from_pretrained('google/mt5-small'      )

     lowerCamelCase__       : int   					=						tokenizer('Hello there'     ,	return_tensors='tf'      ).input_ids
     lowerCamelCase__       : int   					=						tokenizer('Hi I am'     ,	return_tensors='tf'      ).input_ids

     lowerCamelCase__       : List[str]   					=						model(UpperCAmelCase     ,	labels=UpperCAmelCase      ).loss
     lowerCamelCase__       : List[Any]   					=						-tf.math.reduce_mean(UpperCAmelCase      ).numpy()

     lowerCamelCase__       : Dict   					=						-2_1.2_2_8_1_6_8
     self.assertTrue(abs(mtf_score - EXPECTED_SCORE      ) < 2e-4      )





