"""Dataset utility functions."""

from typing import Tuple

import torch
from src.utils.logging_util import LoggingUtils

logger = LoggingUtils.configure_logger(log_name=__name__)



def map_tensor_range(
    tensor: torch.Tensor,
    in_range: Tuple[float, float],
    out_range: Tuple[float, float]
) -> torch.Tensor:
    """
    Linearly map a tensor from in_range [a, b] to out_range [c, d].
    """
    a, b = in_range
    c, d = out_range
    a, b, c, d = float(a), float(b), float(c), float(d)
    return ((tensor - a) / (b - a)) * (d - c) + c