hikari.internal.mentions

# -*- coding: utf-8 -*-
# cython: language_level=3
# Copyright (c) 2020 Nekokatt
# Copyright (c) 2021-present davfsa
#
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"""Utility functions used for managing mentions on Discord."""
from __future__ import annotations

__all__: typing.Sequence[str] = ("generate_allowed_mentions",)

import typing

from hikari import undefined

if typing.TYPE_CHECKING:
    from hikari import guilds
    from hikari import snowflakes
    from hikari import users
    from hikari.internal import data_binding


def generate_allowed_mentions(
    mentions_everyone: undefined.UndefinedOr[bool],
    mentions_reply: undefined.UndefinedOr[bool],
    user_mentions: undefined.UndefinedOr[typing.Union[snowflakes.SnowflakeishSequence[users.PartialUser], bool]],
    role_mentions: undefined.UndefinedOr[typing.Union[snowflakes.SnowflakeishSequence[guilds.PartialRole], bool]],
) -> data_binding.JSONObject:
    """Generate an allowed mentions JSON object.

    Parameters
    ----------
    mentions_everyone : hikari.undefined.UndefinedOr[bool]
        Whether @everyone and @here mentions are enabled. If
        `hikari.undefined.UNDEFINED` or `False` then this will be disabled.
    mentions_reply : hikari.undefined.UndefinedOr[bool]
        Whether the reply mention should be enabled. If `hikari.undefined.UNDEFINED`
        or `False` then this will be disabled.
    user_mentions : hikari.undefined.UndefinedOr[typing.Union[hikari.snowflakes.SnowflakeishSequence[hikari.users.PartialUser], bool]]
        Either a sequence of objects/IDs of the users to enabled mentions for,
        `True` to allow all mentions or `False`/`hikari.undefined.UNDEFINED`
        to disable all user mentions.
    role_mentions : hikari.undefined.UndefinedOr[typing.Union[hikari.snowflakes.SnowflakeishSequence[hikari.guilds.PartialRole], bool]]
        Either a sequence of objects/IDs of the roles to enabled mentions for,
        `True` to allow all mentions or `False`/`hikari.undefined.UNDEFINED`
        to disable all user mentions.

    Returns
    -------
    hikari.internal.data_binding.JSONObject
        The allowed mentions JSON Object.
    """  # noqa: E501 - Line too long
    parsed_mentions: typing.List[str] = []
    allowed_mentions: typing.Dict[str, typing.Any] = {"parse": parsed_mentions}

    if mentions_everyone is True:
        parsed_mentions.append("everyone")

    if mentions_reply is True:
        allowed_mentions["replied_user"] = True

    if user_mentions is True:
        parsed_mentions.append("users")
    elif isinstance(user_mentions, typing.Collection):
        # Duplicates will cause Discord to error.
        ids = {str(int(u)) for u in user_mentions}
        allowed_mentions["users"] = list(ids)

    if role_mentions is True:
        parsed_mentions.append("roles")
    elif isinstance(role_mentions, typing.Collection):
        # Duplicates will cause Discord to error.
        ids = {str(int(r)) for r in role_mentions}
        allowed_mentions["roles"] = list(ids)

    return allowed_mentions

def generate_allowed_mentions(
    mentions_everyone: undefined.UndefinedOr[bool],
    mentions_reply: undefined.UndefinedOr[bool],
    user_mentions: undefined.UndefinedOr[typing.Union[snowflakes.SnowflakeishSequence[users.PartialUser], bool]],
    role_mentions: undefined.UndefinedOr[typing.Union[snowflakes.SnowflakeishSequence[guilds.PartialRole], bool]],
) -> data_binding.JSONObject:
    """Generate an allowed mentions JSON object.

    Parameters
    ----------
    mentions_everyone : hikari.undefined.UndefinedOr[bool]
        Whether @everyone and @here mentions are enabled. If
        `hikari.undefined.UNDEFINED` or `False` then this will be disabled.
    mentions_reply : hikari.undefined.UndefinedOr[bool]
        Whether the reply mention should be enabled. If `hikari.undefined.UNDEFINED`
        or `False` then this will be disabled.
    user_mentions : hikari.undefined.UndefinedOr[typing.Union[hikari.snowflakes.SnowflakeishSequence[hikari.users.PartialUser], bool]]
        Either a sequence of objects/IDs of the users to enabled mentions for,
        `True` to allow all mentions or `False`/`hikari.undefined.UNDEFINED`
        to disable all user mentions.
    role_mentions : hikari.undefined.UndefinedOr[typing.Union[hikari.snowflakes.SnowflakeishSequence[hikari.guilds.PartialRole], bool]]
        Either a sequence of objects/IDs of the roles to enabled mentions for,
        `True` to allow all mentions or `False`/`hikari.undefined.UNDEFINED`
        to disable all user mentions.

    Returns
    -------
    hikari.internal.data_binding.JSONObject
        The allowed mentions JSON Object.
    """  # noqa: E501 - Line too long
    parsed_mentions: typing.List[str] = []
    allowed_mentions: typing.Dict[str, typing.Any] = {"parse": parsed_mentions}

    if mentions_everyone is True:
        parsed_mentions.append("everyone")

    if mentions_reply is True:
        allowed_mentions["replied_user"] = True

    if user_mentions is True:
        parsed_mentions.append("users")
    elif isinstance(user_mentions, typing.Collection):
        # Duplicates will cause Discord to error.
        ids = {str(int(u)) for u in user_mentions}
        allowed_mentions["users"] = list(ids)

    if role_mentions is True:
        parsed_mentions.append("roles")
    elif isinstance(role_mentions, typing.Collection):
        # Duplicates will cause Discord to error.
        ids = {str(int(r)) for r in role_mentions}
        allowed_mentions["roles"] = list(ids)

    return allowed_mentions