import sys
from datetime import datetime, timedelta
from typing import (
    Dict, Text, Union, Tuple, Any, Optional, Mapping, Iterable, Callable, List, Type,
    TypeVar, overload, SupportsInt,
)
from _typeshed.wsgi import WSGIEnvironment

from .datastructures import (
    Headers, Accept, RequestCacheControl, HeaderSet, Authorization, WWWAuthenticate,
    IfRange, Range, ContentRange, ETags, TypeConversionDict,
)

if sys.version_info < (3,):
    _Str = TypeVar('_Str', str, unicode)
    _ToBytes = Union[bytes, bytearray, buffer, unicode]
    _ETagData = Union[str, unicode, bytearray, buffer, memoryview]
else:
    _Str = str
    _ToBytes = Union[bytes, bytearray, memoryview, str]
    _ETagData = Union[bytes, bytearray, memoryview]

_T = TypeVar("_T")
_U = TypeVar("_U")

HTTP_STATUS_CODES: Dict[int, str]

def wsgi_to_bytes(data: Union[bytes, Text]) -> bytes: ...
def bytes_to_wsgi(data: bytes) -> str: ...
def quote_header_value(value: Any, extra_chars: str = ..., allow_token: bool = ...) -> str: ...
def unquote_header_value(value: _Str, is_filename: bool = ...) -> _Str: ...
def dump_options_header(header: Optional[_Str], options: Mapping[_Str, Any]) -> _Str: ...
def dump_header(iterable: Union[Iterable[Any], Dict[_Str, Any]], allow_token: bool = ...) -> _Str: ...
def parse_list_header(value: _Str) -> List[_Str]: ...
@overload
def parse_dict_header(value: Union[bytes, Text]) -> Dict[Text, Optional[Text]]: ...
@overload
def parse_dict_header(value: Union[bytes, Text], cls: Type[_T]) -> _T: ...
@overload
def parse_options_header(value: None, multiple: bool = ...) -> Tuple[str, Dict[str, Optional[str]]]: ...
@overload
def parse_options_header(value: _Str) -> Tuple[_Str, Dict[_Str, Optional[_Str]]]: ...
# actually returns Tuple[_Str, Dict[_Str, Optional[_Str]], ...]
@overload
def parse_options_header(value: _Str, multiple: bool = ...) -> Tuple[Any, ...]: ...
@overload
def parse_accept_header(value: Optional[Text]) -> Accept: ...
@overload
def parse_accept_header(value: Optional[_Str], cls: Callable[[Optional[List[Tuple[str, float]]]], _T]) -> _T: ...
@overload
def parse_cache_control_header(value: Union[None, bytes, Text],
                               on_update: Optional[Callable[[RequestCacheControl], Any]] = ...) -> RequestCacheControl: ...
@overload
def parse_cache_control_header(value: Union[None, bytes, Text], on_update: _T,
                               cls: Callable[[Dict[Text, Optional[Text]], _T], _U]) -> _U: ...
@overload
def parse_cache_control_header(value: Union[None, bytes, Text], *,
                               cls: Callable[[Dict[Text, Optional[Text]], None], _U]) -> _U: ...
def parse_set_header(value: Text, on_update: Optional[Callable[[HeaderSet], Any]] = ...) -> HeaderSet: ...
def parse_authorization_header(value: Union[None, bytes, Text]) -> Optional[Authorization]: ...
def parse_www_authenticate_header(value: Union[None, bytes, Text],
                                  on_update: Optional[Callable[[WWWAuthenticate], Any]] = ...) -> WWWAuthenticate: ...
def parse_if_range_header(value: Optional[Text]) -> IfRange: ...
def parse_range_header(value: Optional[Text], make_inclusive: bool = ...) -> Optional[Range]: ...
def parse_content_range_header(value: Optional[Text],
                               on_update: Optional[Callable[[ContentRange], Any]] = ...) -> Optional[ContentRange]: ...
def quote_etag(etag: _Str, weak: bool = ...) -> _Str: ...
def unquote_etag(etag: Optional[_Str]) -> Tuple[Optional[_Str], Optional[_Str]]: ...
def parse_etags(value: Optional[Text]) -> ETags: ...
def generate_etag(data: _ETagData) -> str: ...
def parse_date(value: Optional[str]) -> Optional[datetime]: ...
def cookie_date(expires: Union[None, float, datetime] = ...) -> str: ...
def http_date(timestamp: Union[None, float, datetime] = ...) -> str: ...
def parse_age(value: Optional[SupportsInt] = ...) -> Optional[timedelta]: ...
def dump_age(age: Union[None, timedelta, SupportsInt]) -> Optional[str]: ...
def is_resource_modified(environ: WSGIEnvironment, etag: Optional[Text] = ..., data: Optional[_ETagData] = ...,
                         last_modified: Union[None, Text, datetime] = ..., ignore_if_range: bool = ...) -> bool: ...
def remove_entity_headers(headers: Union[List[Tuple[Text, Text]], Headers], allowed: Iterable[Text] = ...) -> None: ...
def remove_hop_by_hop_headers(headers: Union[List[Tuple[Text, Text]], Headers]) -> None: ...
def is_entity_header(header: Text) -> bool: ...
def is_hop_by_hop_header(header: Text) -> bool: ...
@overload
def parse_cookie(header: Union[None, WSGIEnvironment, Text, bytes], charset: Text = ...,
                 errors: Text = ...) -> TypeConversionDict[Any, Any]: ...
@overload
def parse_cookie(header: Union[None, WSGIEnvironment, Text, bytes], charset: Text = ...,
                 errors: Text = ..., cls: Optional[Callable[[Iterable[Tuple[Text, Text]]], _T]] = ...) -> _T: ...
def dump_cookie(key: _ToBytes, value: _ToBytes = ..., max_age: Union[None, float, timedelta] = ...,
                expires: Union[None, Text, float, datetime] = ..., path: Union[None, Tuple[Any, ...], str, bytes] = ...,
                domain: Union[None, str, bytes] = ..., secure: bool = ..., httponly: bool = ..., charset: Text = ...,
                sync_expires: bool = ...) -> str: ...
def is_byte_range_valid(start: Optional[int], stop: Optional[int], length: Optional[int]) -> bool: ...
