codechecker

import path from "path";

export function isAbsolutePathLike(input: string): boolean {
  if (!input) return false;
  if (path.isAbsolute(input)) return true;
  // Windows drive-letter or UNC style, even when running on a non-Windows host.
  return /^[a-zA-Z]:[\\/]/.test(input) || /^\\\\/.test(input);
}

export function normalizeTargetDir(input: string | undefined, fallback: string): string {
  const value = (input ?? "").trim();
  return value.length ? value : fallback;
}

export function resolveForgeTarget(workspaceRoot: string, targetDir: string): string {
  const trimmed = targetDir.trim();
  if (!trimmed) {
    throw new Error("target_dir is required");
  }

  if (isAbsolutePathLike(trimmed)) {
    return path.resolve(trimmed);
  }

  const slug = trimmed
    .toLowerCase()
    .replace(/[^a-z0-9]+/g, "-")
    .replace(/^-+|-+$/g, "")
    .slice(0, 64) || "plugin";

  return path.resolve(workspaceRoot, ".forge-generated", slug);
}