"""Manifest-based raster resolution shared by inference, EDA and handoffs."""
from pathlib import Path

IMAGE_SUFFIXES = {".jpg", ".jpeg", ".png", ".webp", ".bmp", ".tif", ".tiff"}


def resolve_local_images(manifest: list[dict], image_dir: Path) -> dict[str, Path]:
    resolved = {}
    seen = set()
    for row in manifest:
        image_id = row["image_id"]
        if image_id in seen:
            raise ValueError(f"duplicate manifest image_id: {image_id}")
        seen.add(image_id)
        source = row.get("gcs_path")
        if not isinstance(source, str):
            continue
        filename = Path(source).name
        candidate = image_dir / filename
        if candidate.suffix.lower() in IMAGE_SUFFIXES and candidate.is_file():
            resolved[image_id] = candidate
    return resolved