/**
 * @file HTTP surface for the AI Tools catalog (server/lib/ai-tools.js): list
 * what is known and installed, re-detect after hydrating PATH from the login
 * shell, and enable/disable a tool or make it the default. Nothing here takes
 * a command or an argument from the request — the catalog files are the only
 * source of what a lane may run. Writes sit behind the same-origin guard.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

const express = require("express");

const aiTools = require("../lib/ai-tools");
const { hydrateShellPath } = require("../lib/shell-path");
const { sameOriginGuard } = require("../lib/same-origin");

const router = express.Router();

router.get("/", (_req, res) => {
  res.json(aiTools.view());
});

router.post("/refresh", sameOriginGuard, async (_req, res) => {
  await hydrateShellPath();
  aiTools.refresh();
  res.json(aiTools.view());
});

router.put("/:id", sameOriginGuard, (req, res) => {
  const { enabled, default: makeDefault } = req.body || {};
  try {
    if (enabled !== undefined) {
      if (typeof enabled !== "boolean") {
        return res
          .status(400)
          .json({ error: { code: "EBADFIELD", message: "enabled must be a boolean" } });
      }
      aiTools.setEnabled(req.params.id, enabled);
    }
    if (makeDefault === true) aiTools.setDefault(req.params.id);
    else if (enabled === undefined && !aiTools.has(req.params.id)) {
      return res.status(404).json({ error: { code: "ENOTOOL", message: "unknown AI tool" } });
    }
    res.json(aiTools.view());
  } catch (e) {
    const status = e.code === "ENOTOOL" ? 404 : e.code === "EBADDEFAULT" ? 400 : 500;
    res.status(status).json({ error: { code: e.code || "EINTERNAL", message: e.message } });
  }
});

module.exports = router;