import express from 'express';
import pool from '../db/pool.js';
import { requireAuth } from '../middleware/auth.js';
import { getAmppConfig } from '../ampp/client.js';

const router = express.Router();
router.use(requireAuth);

// GET /api/v1/settings/ampp — Return current AMPP config (token value masked)
router.get('/ampp', async (req, res, next) => {
  try {
    const result = await pool.query(
      "SELECT key, value FROM settings WHERE key IN ('ampp_base_url', 'ampp_token')"
    );
    const out = {};
    for (const row of result.rows) {
      if (row.key === 'ampp_token') {
        out.ampp_token_exists = true; // Never return the raw token
      } else {
        out[row.key] = row.value;
      }
    }
    res.json(out);
  } catch (err) {
    next(err);
  }
});

// PUT /api/v1/settings/ampp — Save AMPP credentials
router.put('/ampp', async (req, res, next) => {
  try {
    const { ampp_base_url, ampp_token } = req.body;
    if (!ampp_base_url) {
      return res.status(400).json({ error: 'ampp_base_url is required' });
    }

    const baseUrl = ampp_base_url.trim().replace(/\/$/, '');

    await pool.query(
      `INSERT INTO settings (key, value, updated_at)
       VALUES ('ampp_base_url', $1, NOW())
       ON CONFLICT (key) DO UPDATE SET value = $1, updated_at = NOW()`,
      [baseUrl]
    );

    if (ampp_token) {
      await pool.query(
        `INSERT INTO settings (key, value, updated_at)
         VALUES ('ampp_token', $1, NOW())
         ON CONFLICT (key) DO UPDATE SET value = $1, updated_at = NOW()`,
        [ampp_token.trim()]
      );
    }

    res.json({ message: 'AMPP settings saved' });
  } catch (err) {
    next(err);
  }
});

// POST /api/v1/settings/ampp/test — Verify AMPP connectivity
router.post('/ampp/test', async (req, res, next) => {
  try {
    const config = await getAmppConfig();
    if (!config) {
      return res.status(400).json({ error: 'AMPP credentials not configured' });
    }

    const testUrl = `${config.ampp_base_url}/api/v1/store/folder/folders?limit=1`;
    const testRes = await fetch(testUrl, {
      headers: {
        Authorization: `Bearer ${config.ampp_token}`,
        'Content-Type': 'application/json',
      },
    });

    if (!testRes.ok) {
      return res.status(400).json({ error: `AMPP returned HTTP ${testRes.status}` });
    }

    res.json({ message: 'AMPP connection successful' });
  } catch (err) {
    res.status(400).json({ error: `Connection failed: ${err.message}` });
  }
});

export default router;