#
# Copyright 2026 The Dapr Authors
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#     http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

from typing import TYPE_CHECKING

from .embedder import NVIDIAEmbedder, OpenAIEmbedder, SentenceTransformerEmbedder
from .fetcher import ArxivFetcher
from .reader import PyMuPDFReader, PyPDFReader

if TYPE_CHECKING:
    from .splitter import TextSplitter

__all__ = [
    "ArxivFetcher",
    "PyMuPDFReader",
    "PyPDFReader",
    "TextSplitter",
    "OpenAIEmbedder",
    "SentenceTransformerEmbedder",
    "NVIDIAEmbedder",
]


def __getattr__(name: str):
    """Lazy import for optional dependencies."""
    if name == "TextSplitter":
        from .splitter import TextSplitter

        return TextSplitter
    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
