# ------------------------------------------------------------------------
# LW-DETR
# Copyright (c) 2024 Baidu. All Rights Reserved.
# Licensed under the Apache License, Version 2.0 [see LICENSE for details]
# ------------------------------------------------------------------------
# Modified from Conditional DETR (https://github.com/Atten4Vis/ConditionalDETR)
# Copyright (c) 2021 Microsoft. All Rights Reserved.
# ------------------------------------------------------------------------
# Copied from DETR (https://github.com/facebookresearch/detr)
# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
# ------------------------------------------------------------------------

import torch.utils.data
import torchvision

from .coco import build as build_coco
from .o365 import build_o365
from .coco import build_roboflow


def get_coco_api_from_dataset(dataset):
    for _ in range(10):
        if isinstance(dataset, torch.utils.data.Subset):
            dataset = dataset.dataset
    if isinstance(dataset, torchvision.datasets.CocoDetection):
        return dataset.coco


def build_dataset(image_set, args, resolution):
    if args.dataset_file == 'coco':
        return build_coco(image_set, args, resolution)
    if args.dataset_file == 'o365':
        return build_o365(image_set, args, resolution)
    if args.dataset_file == 'roboflow':
        return build_roboflow(image_set, args, resolution)
    raise ValueError(f'dataset {args.dataset_file} not supported')