'''simple docstring'''




import os
from dataclasses import dataclass, field
from io import BytesIO
from typing import TYPE_CHECKING, Any, ClassVar, Dict, Optional, Union

import numpy as np
import pyarrow as pa

from .. import config
from ..download.streaming_download_manager import xopen, xsplitext
from ..table import array_cast
from ..utils.py_utils import no_op_if_value_is_null, string_to_dict


if TYPE_CHECKING:
  from .features import FeatureType


__UpperCAmelCase							,       __UpperCAmelCase							,       __UpperCAmelCase     							=False, False, False




@dataclass
class     a__      :
     lowerCamelCase  :     Optional[int]							=None
     lowerCamelCase  :     bool							=True
     lowerCamelCase  :     bool							=True
     lowerCamelCase  :     Optional[str]							=None
     # Automatically constructed
     lowerCamelCase  :     ClassVar[str]							="dict"
     lowerCamelCase  :     ClassVar[Any]							=pa.struct({"bytes": pa.binary(), "path": pa.string()} )
     lowerCamelCase  :     str							=field(default="Audio"							,   init=UpperCAmelCase__							,   repr=UpperCAmelCase__ )






     def __call__( self		:		Dict    ):





         """simple docstring"""



         return self.pa_type






     def    SCREAMING_SNAKE_CASE__   ( self		:		Optional[Any]  ,				a		:		Union[str, bytes, dict]    ):





         """simple docstring"""



         try:
             import soundfile as sf  # soundfile is a dependency of librosa, needed to decode audio files.
         except ImportError as err:
             raise ImportError('''To support encoding audio data, please install \'soundfile\'.'''    ) from err
         if isinstance(a  ,				a    ):
             return {"bytes": None, "path": value}
         elif isinstance(a  ,				a    ):
             return {"bytes": value, "path": None}
         elif "array" in value:
             # convert the audio array to wav bytes
             __lowerCamelCase		=  BytesIO()
             sf.write(a  ,				value['''array''']  ,				value['''sampling_rate''']  ,				format='''wav'''    )
             return {"bytes": buffer.getvalue(), "path": None}
         elif value.get('''path'''    ) is not None and os.path.isfile(value['''path''']    ):
             # we set "bytes": None to not duplicate the data if they're already available locally
             if value["path"].endswith('''pcm'''    ):
                 # "PCM" only has raw audio bytes
                 if value.get('''sampling_rate'''    ) is None:
                     # At least, If you want to convert "PCM-byte" to "WAV-byte", you have to know sampling rate
                     raise KeyError('''To use PCM files, please specify a \'sampling_rate\' in Audio object'''    )
                 if value.get('''bytes'''    ):
                     # If we already had PCM-byte, we don`t have to make "read file, make bytes" (just use it!)
                     __lowerCamelCase		=  np.frombuffer(value['''bytes''']  ,				dtype=np.intaa    ).astype(np.floataa    ) / 3_27_67
                 else:
                     __lowerCamelCase		=  np.memmap(value['''path''']  ,				dtype='''h'''  ,				mode='''r'''    ).astype(np.floataa    ) / 3_27_67

                 __lowerCamelCase		=  BytesIO(bytes()    )
                 sf.write(a  ,				a  ,				value['''sampling_rate''']  ,				format='''wav'''    )
                 return {"bytes": buffer.getvalue(), "path": None}
             else:
                 return {"bytes": None, "path": value.get('''path'''    )}
         elif value.get('''bytes'''    ) is not None or value.get('''path'''    ) is not None:
             # store the audio bytes, and path is used to infer the audio format using the file extension
             return {"bytes": value.get('''bytes'''    ), "path": value.get('''path'''    )}
         else:
             raise ValueError(
                 f"""An audio sample should have one of 'path' or 'bytes' but they are missing or None in {value}."""    )






     def    SCREAMING_SNAKE_CASE__   ( self		:		Union[str, Any]  ,				a		:		dict  ,				a		:		Optional[Dict[str, Union[str, bool, None]]] = None    ):





         """simple docstring"""



         if not self.decode:
             raise RuntimeError('''Decoding is disabled for this feature. Please use Audio(decode=True) instead.'''    )

         __lowerCamelCase	,  __lowerCamelCase		=  (value['''path'''], BytesIO(value['''bytes''']    )) if value['''bytes'''] is not None else (value['''path'''], None)
         if path is None and file is None:
             raise ValueError(f"""An audio sample should have one of 'path' or 'bytes' but both are None in {value}."""    )

         try:
             import librosa
             import soundfile as sf
         except ImportError as err:
             raise ImportError('''To support decoding audio files, please install \'librosa\' and \'soundfile\'.'''    ) from err

         __lowerCamelCase		=  xsplitext(a    )[1][1:].lower() if path is not None else None
         if not config.IS_OPUS_SUPPORTED and audio_format == "opus":
             raise RuntimeError(
                 '''Decoding \'opus\' files requires system library \'libsndfile\'>=1.0.31, '''
                 '''You can try to update `soundfile` python library: `pip install "soundfile>=0.12.1"`. '''    )
         elif not config.IS_MP3_SUPPORTED and audio_format == "mp3":
             raise RuntimeError(
                 '''Decoding \'mp3\' files requires system library \'libsndfile\'>=1.1.0, '''
                 '''You can try to update `soundfile` python library: `pip install "soundfile>=0.12.1"`. '''    )

         if file is None:
             __lowerCamelCase		=  token_per_repo_id or {}
             __lowerCamelCase		=  path.split('''::'''    )[-1]
             try:
                 __lowerCamelCase		=  string_to_dict(a  ,				config.HUB_DATASETS_URL    )['''repo_id''']
                 __lowerCamelCase		=  token_per_repo_id[repo_id]
             except (ValueError, KeyError):
                 __lowerCamelCase		=  None

             with xopen(a  ,				'''rb'''  ,				use_auth_token=a    ) as f:
                 __lowerCamelCase	,  __lowerCamelCase		=  sf.read(a    )

         else:
             __lowerCamelCase	,  __lowerCamelCase		=  sf.read(a    )

         __lowerCamelCase		=  array.T
         if self.mono:
             __lowerCamelCase		=  librosa.to_mono(a    )
         if self.sampling_rate and self.sampling_rate != sampling_rate:
             __lowerCamelCase		=  librosa.resample(a  ,				orig_sr=a  ,				target_sr=self.sampling_rate    )
             __lowerCamelCase		=  self.sampling_rate

         return {"path": path, "array": array, "sampling_rate": sampling_rate}






     def    SCREAMING_SNAKE_CASE__   ( self		:		Optional[int]    ):





         """simple docstring"""



         from .features import Value

         if self.decode:
             raise ValueError('''Cannot flatten a decoded Audio feature.'''    )
         return {
             "bytes": Value('''binary'''    ),
             "path": Value('''string'''    ),
         }






     def    SCREAMING_SNAKE_CASE__   ( self		:		str  ,				a		:		Union[pa.StringArray, pa.StructArray]    ):





         """simple docstring"""



         if pa.types.is_string(storage.type    ):
             __lowerCamelCase		=  pa.array([None] * len(a    )  ,				type=pa.binary()    )
             __lowerCamelCase		=  pa.StructArray.from_arrays([bytes_array, storage]  ,				['''bytes''', '''path''']  ,				mask=storage.is_null()    )
         elif pa.types.is_binary(storage.type    ):
             __lowerCamelCase		=  pa.array([None] * len(a    )  ,				type=pa.string()    )
             __lowerCamelCase		=  pa.StructArray.from_arrays([storage, path_array]  ,				['''bytes''', '''path''']  ,				mask=storage.is_null()    )
         elif pa.types.is_struct(storage.type    ) and storage.type.get_all_field_indices('''array'''    ):
             __lowerCamelCase		=  pa.array([Audio().encode_example(a    ) if x is not None else None for x in storage.to_pylist()]    )
         elif pa.types.is_struct(storage.type    ):
             if storage.type.get_field_index('''bytes'''    ) >= 0:
                 __lowerCamelCase		=  storage.field('''bytes'''    )
             else:
                 __lowerCamelCase		=  pa.array([None] * len(a    )  ,				type=pa.binary()    )
             if storage.type.get_field_index('''path'''    ) >= 0:
                 __lowerCamelCase		=  storage.field('''path'''    )
             else:
                 __lowerCamelCase		=  pa.array([None] * len(a    )  ,				type=pa.string()    )
             __lowerCamelCase		=  pa.StructArray.from_arrays([bytes_array, path_array]  ,				['''bytes''', '''path''']  ,				mask=storage.is_null()    )
         return array_cast(a  ,				self.pa_type    )






     def    SCREAMING_SNAKE_CASE__   ( self		:		Dict  ,				a		:		pa.StructArray    ):





         """simple docstring"""



         @no_op_if_value_is_null
         def path_to_bytes(a		:		Optional[Any]    ):
             with xopen(a  ,				'''rb'''    ) as f:
                 __lowerCamelCase		=  f.read()
             return bytes_

         __lowerCamelCase		=  pa.array(
             [
                 (path_to_bytes(x['''path''']    ) if x['''bytes'''] is None else x['''bytes''']) if x is not None else None
                 for x in storage.to_pylist()
             ]  ,				type=pa.binary()  ,				)
         __lowerCamelCase		=  pa.array(
             [os.path.basename(a    ) if path is not None else None for path in storage.field('''path'''    ).to_pylist()]  ,				type=pa.string()  ,				)
         __lowerCamelCase		=  pa.StructArray.from_arrays([bytes_array, path_array]  ,				['''bytes''', '''path''']  ,				mask=bytes_array.is_null()    )
         return array_cast(a  ,				self.pa_type    )




"""simple docstring"""







class       SCREAMING_SNAKE_CASE__				:
       """simple docstring"""


       def __init__(						self		,     snake_case__ = ""		,     snake_case__ = False						):






         """simple docstring"""





         lowerCAmelCase     :     dict[str, RadixNode]								=							{}

         # A node will be a leaf if the tree contains its word
         lowerCAmelCase     :     str								=							is_leaf

         lowerCAmelCase     :     str								=							prefix

       def        lowercase__							(						self		,     snake_case__						):






         """simple docstring"""





         lowerCAmelCase     :     Dict								=							0
         for q, w in zip(self.prefix		,     snake_case__						):
           if q != w:
             break

           x += 1

         return self.prefix[:x], self.prefix[x:], word[x:]

       def        lowercase__							(						self		,     snake_case__						):






         """simple docstring"""





         for word in words:
           self.insert(snake_case__						)

       def        lowercase__							(						self		,     snake_case__						):






         """simple docstring"""





         if self.prefix == word:
           lowerCAmelCase     :     Union[str, Any]								=							True

         # Case 2: The node has no edges that have a prefix to the word
         # Solution: We create an edge from the current node to a new one
         # containing the word
         elif word[0] not in self.nodes:
           lowerCAmelCase     :     Optional[Any]								=							RadixNode(prefix=snake_case__		,     is_leaf=snake_case__						)

         else:
           lowerCAmelCase     :     Tuple								=							self.nodes[word[0]]
           lowerCAmelCase						,  lowerCAmelCase						,  lowerCAmelCase     :     Optional[Any]								=							incoming_node.match(
               snake_case__						)

           # Case 3: The node prefix is equal to the matching
           # Solution: We insert remaining word on the next node
           if remaining_prefix == "":
             self.nodes[matching_string[0]].insert(snake_case__						)

           # Case 4: The word is greater equal to the matching
           # Solution: Create a node in between both nodes, change
           # prefixes and add the new node for the remaining word
           else:
             lowerCAmelCase     :     Optional[Any]								=							remaining_prefix

             lowerCAmelCase     :     int								=							self.nodes[matching_string[0]]
             lowerCAmelCase     :     List[Any]								=							RadixNode(snake_case__		,     snake_case__						)
             lowerCAmelCase     :     Optional[int]								=							aux_node

             if remaining_word == "":
               lowerCAmelCase     :     Optional[int]								=							True
             else:
               self.nodes[matching_string[0]].insert(snake_case__						)

       def        lowercase__							(						self		,     snake_case__						):






         """simple docstring"""





         lowerCAmelCase     :     str								=							self.nodes.get(word[0]		,     snake_case__						)
         if not incoming_node:
           return False
         else:
           lowerCAmelCase						,  lowerCAmelCase						,  lowerCAmelCase     :     int								=							incoming_node.match(
               snake_case__						)
           # If there is remaining prefix, the word can't be on the tree
           if remaining_prefix != "":
             return False
           # This applies when the word and the prefix are equal
           elif remaining_word == "":
             return incoming_node.is_leaf
           # We have word remaining so we check the next node
           else:
             return incoming_node.find(snake_case__						)

       def        lowercase__							(						self		,     snake_case__						):






         """simple docstring"""





         lowerCAmelCase     :     int								=							self.nodes.get(word[0]		,     snake_case__						)
         if not incoming_node:
           return False
         else:
           lowerCAmelCase						,  lowerCAmelCase						,  lowerCAmelCase     :     Union[str, Any]								=							incoming_node.match(
               snake_case__						)
           # If there is remaining prefix, the word can't be on the tree
           if remaining_prefix != "":
             return False
           # We have word remaining so we check the next node
           elif remaining_word != "":
             return incoming_node.delete(snake_case__						)
           else:
             # If it is not a leaf, we don't have to delete
             if not incoming_node.is_leaf:
               return False
             else:
               # We delete the nodes if no edges go from it
               if len(incoming_node.nodes						) == 0:
                 del self.nodes[word[0]]
                 # We merge the current node with its only child
                 if len(self.nodes						) == 1 and not self.is_leaf:
                   lowerCAmelCase     :     List[str]								=							list(self.nodes.values()						)[0]
                   lowerCAmelCase     :     List[str]								=							merging_node.is_leaf
                   self.prefix += merging_node.prefix
                   lowerCAmelCase     :     Optional[int]								=							merging_node.nodes
                    # If there is more than 1 edge, we just mark it as non-leaf
               elif len(incoming_node.nodes						) > 1:
                 lowerCAmelCase     :     Optional[int]								=							False
               # If there is 1 edge, we merge it with its child
               else:
                 lowerCAmelCase     :     Optional[Any]								=							list(incoming_node.nodes.values()						)[0]
                 lowerCAmelCase     :     int								=							merging_node.is_leaf
                 incoming_node.prefix += merging_node.prefix
                 lowerCAmelCase     :     Tuple								=							merging_node.nodes

               return True







       def        lowercase__							(						self		,     snake_case__ = 0						):






         """simple docstring"""





         if self.prefix != "":
           print("-" * height		,     self.prefix		,     "  (leaf)" if self.is_leaf else ""						)

         for value in self.nodes.values():
           value.print_tree(height + 1						)

def 					a__			(				):


  '''simple docstring'''







  lowerCAmelCase     :     Union[str, Any]								=							"banana bananas bandana band apple all beast".split()
  lowerCAmelCase     :     List[str]								=							RadixNode()
  root.insert_many(SCREAMING_SNAKE_CASE				)

  assert all(root.find(SCREAMING_SNAKE_CASE				) for word in words				)
  assert not root.find("bandanas"				)
  assert not root.find("apps"				)
  root.delete("all"				)
  assert not root.find("all"				)
  root.delete("banana"				)
  assert not root.find("banana"				)
  assert root.find("bananas"				)

  return True
def 					a__			(				):


  '''simple docstring'''







  assert test_trie()
def 					a__			(				):


  '''simple docstring'''







  lowerCAmelCase     :     Dict								=							RadixNode()
  lowerCAmelCase     :     Optional[Any]								=							"banana bananas bandanas bandana band apple all beast".split()
  root.insert_many(SCREAMING_SNAKE_CASE				)

  print("Words:"				,      SCREAMING_SNAKE_CASE				)
  print("Tree:"				)
  root.print_tree()


if __name__ == "__main__":
     main()





