import torch
from sam2.build_sam import build_sam2
from sam2.sam2_image_predictor import SAM2ImagePredictor

SAM_CHECKPOINT = "checkpoints/sam2_hiera_large.pt"
SAM_CONFIG = "sam2_hiera_l.yaml"


def load_sam_model(
    device: torch.device,
    config: str = SAM_CONFIG,
    checkpoint: str = SAM_CHECKPOINT
) -> SAM2ImagePredictor:
    model = build_sam2(config, checkpoint, device=device)
    return SAM2ImagePredictor(sam_model=model)