#-----------------------------------------------------------------------------
# Copyright (c) Anaconda, Inc., and Bokeh Contributors.
# All rights reserved.
#
# The full license is in the file LICENSE.txt, distributed with this software.
#-----------------------------------------------------------------------------
'''

'''

#-----------------------------------------------------------------------------
# Boilerplate
#-----------------------------------------------------------------------------
from __future__ import annotations

import logging # isort:skip
log = logging.getLogger(__name__)

#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------

# Standard library imports
from typing import (
    TYPE_CHECKING,
    Any,
    Literal,
    TypeAlias,
    TypedDict,
)

if TYPE_CHECKING:
    from typing_extensions import NotRequired

    from ..core.has_props import ModelDef
    from ..core.serialization import ModelRep, Ref
    from ..models.sources import DataDict

#-----------------------------------------------------------------------------
# Globals and constants
#-----------------------------------------------------------------------------

__all__ = ()

#-----------------------------------------------------------------------------
# General API
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
# Dev API
#-----------------------------------------------------------------------------

Patch: TypeAlias = Any # TODO

Patches: TypeAlias = dict[str, list[Patch]]

class ModelChanged(TypedDict):
    kind: Literal["ModelChanged"]
    model: Ref
    attr: str
    new: Any

class MessageSent(TypedDict):
    kind: Literal["MessageSent"]
    msg_type: str
    msg_data: Any | None

class TitleChanged(TypedDict):
    kind: Literal["TitleChanged"]
    title: str

class RootAdded(TypedDict):
    kind: Literal["RootAdded"]
    model: Ref

class RootRemoved(TypedDict):
    kind: Literal["RootRemoved"]
    model: Ref

class ColumnDataChanged(TypedDict):
    kind: Literal["ColumnDataChanged"]
    model: Ref
    attr: str
    data: DataDict
    cols: list[str] | None

class ColumnsStreamed(TypedDict):
    kind: Literal["ColumnsStreamed"]
    model: Ref
    attr: str
    data: DataDict
    rollover: int | None

class ColumnsPatched(TypedDict):
    kind: Literal["ColumnsPatched"]
    model: Ref
    attr: str
    patches: Patches

DocumentPatched: TypeAlias = (
    MessageSent |
    ModelChanged |
    ColumnDataChanged |
    ColumnsStreamed |
    ColumnsPatched |
    TitleChanged |
    RootAdded |
    RootRemoved
)

DocumentChanged = DocumentPatched

class DocJson(TypedDict):
    version: NotRequired[str]
    title: NotRequired[str]
    defs: NotRequired[list[ModelDef]]
    roots: list[ModelRep]
    callbacks: NotRequired[dict[str, list[ModelRep]]]

class PatchJson(TypedDict):
    events: list[DocumentChanged]

#-----------------------------------------------------------------------------
# Private API
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------