import { json, error } from '@sveltejs/kit';
import { createAirtableServices } from '$lib/airtable';
import type { RequestHandler } from './$types';

const apiKey = process.env.VITE_AIRTABLE_API_KEY;
const baseId = process.env.VITE_AIRTABLE_BASE_ID;

if (!apiKey || !baseId) {
  throw new Error('Airtable API key and base ID must be configured');
}

const airtable = createAirtableServices(apiKey, baseId);

// GET /api/settings - Get settings (assuming single settings record or by user)
export const GET: RequestHandler = async ({ url }) => {
  try {
    const userId = url.searchParams.get('userId');

    let filter = '';
    if (userId) {
      filter = `{userId}="${userId}"`;
    }

    const response = await airtable.settings.listRecords(filter);
    const settings = response.records.map(record => ({
      id: record.id,
      ...record.fields,
      // Parse JSON fields if they exist
      dashboardLayout: record.fields.dashboardLayout ? JSON.parse(record.fields.dashboardLayout) : null
    }));

    // Return first settings record if no userId specified, or all matching records
    return json(userId ? settings : settings[0] || null);
  } catch (err) {
    console.error('Error fetching settings:', err);
    throw error(500, 'Failed to fetch settings');
  }
};

// POST /api/settings - Create new settings
export const POST: RequestHandler = async ({ request }) => {
  try {
    const settingsData = await request.json();

    const fields = {
      ...settingsData,
      dashboardLayout: settingsData.dashboardLayout ? JSON.stringify(settingsData.dashboardLayout) : null
    };

    const record = await airtable.settings.createRecord(fields);

    const settings = {
      id: record.id,
      ...record.fields,
      dashboardLayout: record.fields.dashboardLayout ? JSON.parse(record.fields.dashboardLayout) : null
    };

    return json(settings, { status: 201 });
  } catch (err) {
    console.error('Error creating settings:', err);
    throw error(500, 'Failed to create settings');
  }
};