from monai.transforms import (
    Compose,
    LoadImaged,
    EnsureChannelFirstd,
    Orientationd,
    Spacingd,
    ScaleIntensityRanged,
    CropForegroundd,
    RandCropByPosNegLabeld,
)

def get_train_transforms():
    return Compose([
        LoadImaged(keys=["image", "label"]),
        EnsureChannelFirstd(keys=["image", "label"]),
        Orientationd(keys=["image", "label"], axcodes="RAS"),
        Spacingd(keys=["image", "label"], pixdim=(1.5, 1.5, 1.5)),
        ScaleIntensityRanged(
            keys=["image"],
            a_min=-175,
            a_max=250,
            b_min=0.0,
            b_max=1.0,
            clip=True,
        ),
        CropForegroundd(keys=["image", "label"], source_key="image"),
        RandCropByPosNegLabeld(
            keys=["image", "label"],
            label_key="label",
            spatial_size=(96, 96, 96),
            pos=1,
            neg=1,
            num_samples=4,
        ),
    ])

def get_val_transforms():
    return get_train_transforms()