# Based on http://docs.python.org/3.5/library/configparser.html and on
# reading configparser.py.

import sys
from typing import (AbstractSet, MutableMapping, Mapping, Dict, Sequence, List,
                    Union, Iterable, Iterator, Callable, Any, IO, overload,
                    Optional, Pattern, Type, TypeVar, ClassVar)
# Types only used in type comments only
from typing import Optional, Tuple  # noqa

if sys.version_info >= (3, 6):
    from os import PathLike

# Internal type aliases
_section = Mapping[str, str]
_parser = MutableMapping[str, _section]
_converter = Callable[[str], Any]
_converters = Dict[str, _converter]
_T = TypeVar('_T')

if sys.version_info >= (3, 7):
    _Path = Union[str, bytes, PathLike[str]]
elif sys.version_info >= (3, 6):
    _Path = Union[str, PathLike[str]]
else:
    _Path = str

DEFAULTSECT: str
MAX_INTERPOLATION_DEPTH: int

class Interpolation:
    def before_get(self, parser: _parser,
                   section: str,
                   option: str,
                   value: str,
                   defaults: _section) -> str: ...

    def before_set(self, parser: _parser,
                   section: str,
                   option: str,
                   value: str) -> str: ...

    def before_read(self, parser: _parser,
                    section: str,
                    option: str,
                    value: str) -> str: ...

    def before_write(self, parser: _parser,
                     section: str,
                     option: str,
                     value: str) -> str: ...


class BasicInterpolation(Interpolation): ...
class ExtendedInterpolation(Interpolation): ...
class LegacyInterpolation(Interpolation): ...


class RawConfigParser(_parser):
    BOOLEAN_STATES: ClassVar[Mapping[str, bool]] = ...  # Undocumented
    def __init__(self,
                 defaults: Optional[_section] = ...,
                 dict_type: Type[Mapping[str, str]] = ...,
                 allow_no_value: bool = ...,
                 *,
                 delimiters: Sequence[str] = ...,
                 comment_prefixes: Sequence[str] = ...,
                 inline_comment_prefixes: Optional[Sequence[str]] = ...,
                 strict: bool = ...,
                 empty_lines_in_values: bool = ...,
                 default_section: str = ...,
                 interpolation: Optional[Interpolation] = ...,
                 converters: _converters = ...) -> None: ...

    def __len__(self) -> int: ...

    def __getitem__(self, section: str) -> SectionProxy: ...

    def __setitem__(self, section: str, options: _section) -> None: ...

    def __delitem__(self, section: str) -> None: ...

    def __iter__(self) -> Iterator[str]: ...

    def defaults(self) -> _section: ...

    def sections(self) -> List[str]: ...

    def add_section(self, section: str) -> None: ...

    def has_section(self, section: str) -> bool: ...

    def options(self, section: str) -> List[str]: ...

    def has_option(self, section: str, option: str) -> bool: ...

    def read(self, filenames: Union[_Path, Iterable[_Path]],
             encoding: Optional[str] = ...) -> List[str]: ...
    def read_file(self, f: Iterable[str], source: Optional[str] = ...) -> None: ...
    def read_string(self, string: str, source: str = ...) -> None: ...
    def read_dict(self, dictionary: Mapping[str, Mapping[str, Any]],
                  source: str = ...) -> None: ...
    def readfp(self, fp: Iterable[str], filename: Optional[str] = ...) -> None: ...

    # These get* methods are partially applied (with the same names) in
    # SectionProxy; the stubs should be kept updated together

    @overload
    def getint(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> int: ...
    @overload
    def getint(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> Union[int, _T]: ...
    @overload
    def getfloat(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> float: ...
    @overload
    def getfloat(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> Union[float, _T]: ...
    @overload
    def getboolean(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> bool: ...
    @overload
    def getboolean(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> Union[bool, _T]: ...

    def _get_conv(self, section: str, option: str, conv: Callable[[str], _T], *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> _T: ...

    # This is incompatible with MutableMapping so we ignore the type
    @overload  # type: ignore
    def get(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> str: ...

    @overload
    def get(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T) -> Union[str, _T]: ...

    @overload
    def items(self, *, raw: bool = ..., vars: Optional[_section] = ...) -> AbstractSet[Tuple[str, SectionProxy]]: ...

    @overload
    def items(self, section: str, raw: bool = ..., vars: Optional[_section] = ...) -> List[Tuple[str, str]]: ...

    def set(self, section: str, option: str, value: Optional[str] = ...) -> None: ...

    def write(self, fp: IO[str], space_around_delimiters: bool = ...) -> None: ...

    def remove_option(self, section: str, option: str) -> bool: ...

    def remove_section(self, section: str) -> bool: ...

    def optionxform(self, optionstr: str) -> str: ...


class ConfigParser(RawConfigParser): ...

class SafeConfigParser(ConfigParser): ...

class SectionProxy(MutableMapping[str, str]):
    def __init__(self, parser: RawConfigParser, name: str) -> None: ...
    def __getitem__(self, key: str) -> str: ...
    def __setitem__(self, key: str, value: str) -> None: ...
    def __delitem__(self, key: str) -> None: ...
    def __contains__(self, key: object) -> bool: ...
    def __len__(self) -> int: ...
    def __iter__(self) -> Iterator[str]: ...
    @property
    def parser(self) -> RawConfigParser: ...
    @property
    def name(self) -> str: ...
    def get(self, option: str, fallback: Optional[str] = ..., *, raw: bool = ..., vars: Optional[_section] = ..., _impl: Optional[Any] = ..., **kwargs: Any) -> str: ...  # type: ignore

    # These are partially-applied version of the methods with the same names in
    # RawConfigParser; the stubs should be kept updated together
    @overload
    def getint(self, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> int: ...
    @overload
    def getint(self, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> Union[int, _T]: ...
    @overload
    def getfloat(self, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> float: ...
    @overload
    def getfloat(self, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> Union[float, _T]: ...
    @overload
    def getboolean(self, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> bool: ...
    @overload
    def getboolean(self, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> Union[bool, _T]: ...

    # SectionProxy can have arbitrary attributes when custon converters are used
    def __getattr__(self, key: str) -> Callable[..., Any]: ...

class ConverterMapping(MutableMapping[str, Optional[_converter]]):
    GETTERCRE: Pattern[Any]
    def __init__(self, parser: RawConfigParser) -> None: ...
    def __getitem__(self, key: str) -> _converter: ...
    def __setitem__(self, key: str, value: Optional[_converter]) -> None: ...
    def __delitem__(self, key: str) -> None: ...
    def __iter__(self) -> Iterator[str]: ...
    def __len__(self) -> int: ...


class Error(Exception): ...


class NoSectionError(Error): ...


class DuplicateSectionError(Error):
    section: str
    source: Optional[str]
    lineno: Optional[int]


class DuplicateOptionError(Error):
    section: str
    option: str
    source: Optional[str]
    lineno: Optional[int]


class NoOptionError(Error):
    section: str
    option: str


class InterpolationError(Error):
    section: str
    option: str


class InterpolationDepthError(InterpolationError): ...


class InterpolationMissingOptionError(InterpolationError):
    reference: str


class InterpolationSyntaxError(InterpolationError): ...


class ParsingError(Error):
    source: str
    errors: Sequence[Tuple[int, str]]


class MissingSectionHeaderError(ParsingError):
    lineno: int
    line: str
