import type { NextApiRequest, NextApiResponse } from "next";
import { readdirSync, statSync } from "node:fs";
import { join } from "node:path";

// Returns a list of subfolders in the dev root that contain a .sf directory
export default function handler(req: NextApiRequest, res: NextApiResponse) {
  const devRoot = req.query.devRoot as string;
  if (!devRoot) return res.status(400).json({ error: "Missing devRoot" });
  let projects: string[] = [];
  try {
    const entries = readdirSync(devRoot, { withFileTypes: true });
    projects = entries
      .filter((entry) => entry.isDirectory())
      .filter((entry) => {
        try {
          return statSync(join(devRoot, entry.name, ".sf")).isDirectory();
        } catch {
          return false;
        }
      })
      .map((entry) => entry.name);
    res.status(200).json({ projects });
  } catch (e) {
    res.status(500).json({ error: (e as Error).message });
  }
}