const DRIVE_PATH = /^[A-Za-z]:[\\/]/;
const URI_SCHEME = /^[A-Za-z][A-Za-z0-9+.-]*:/;

export function normalizeProjectAssetPath(sourcePath: string): string {
  if (typeof sourcePath !== "string" || sourcePath.length === 0 || sourcePath.length > 2048) {
    throw new Error("ASSET_PATH_INVALID");
  }
  if (sourcePath.includes("\0") || sourcePath.includes("\\") || sourcePath.includes("%")) {
    throw new Error("ASSET_PATH_OUTSIDE_PROJECT");
  }
  let relative = sourcePath.startsWith("//") ? sourcePath.slice(2) : sourcePath;
  if (relative.startsWith("/") || DRIVE_PATH.test(relative) || URI_SCHEME.test(relative)) {
    throw new Error("ASSET_PATH_OUTSIDE_PROJECT");
  }
  const segments = relative.split("/");
  if (segments.length === 0 || segments.some((segment) =>
    segment.length === 0 || segment === "." || segment === ".." || /[\u0000-\u001f\u007f]/.test(segment))) {
    throw new Error("ASSET_PATH_OUTSIDE_PROJECT");
  }
  relative = segments.join("/");
  if (!relative) throw new Error("ASSET_PATH_INVALID");
  return relative;
}