import { Hono } from 'hono';
import { serveStatic } from 'hono/bun';
import fs from 'fs';
import path from 'path';
// @ts-ignore Bun project may not have dotenv types configured
import { config } from 'dotenv';
// import { getCache, setCache, isRedisConnected } from './redis-cache';

config();

const app = new Hono();
const JOBS_CACHE_FILE = path.join(import.meta.dir, '../jobs-cache.json');

// In-memory cache for fast access
let cachedJobs: any = null;
let lastCacheTime = 0;
let isFetching = false;
let partialJobs: any[] = [];

// Minimal log helpers
const logLine = (path: string, line: string) => {
  try {
    fs.appendFileSync(path, `${new Date().toISOString()} ${line}\n`);
  } catch (err) {
    console.error('Failed to write log:', err);
  }
};

// Cache helper functions
const saveCacheFile = async (data: any): Promise<void> => {
  try {
    await Bun.write(JOBS_CACHE_FILE, JSON.stringify(data, null, 2));
    cachedJobs = data;
    lastCacheTime = Date.now();
  } catch (err) {
    logLine('logs/error.log', `Failed to save cache file: ${err}`);
  }
};

// Fast load: returns first 30 items immediately, full cache lazily
const loadCacheFileFast = async (): Promise<any | null> => {
  try {
    const file = Bun.file(JOBS_CACHE_FILE);
    if (!(await file.exists())) return null;
    
    // Read as text and parse (we're already async, so it's fine)
    const text = await file.text();
    const data = JSON.parse(text);
    cachedJobs = data;
    lastCacheTime = Date.now();
    return data;
  } catch (err) {
    logLine('logs/error.log', `Failed to load cache file: ${err}`);
    return null;
  }
};

const loadCacheFile = async (): Promise<any | null> => {
  try {
    const file = Bun.file(JOBS_CACHE_FILE);
    if (await file.exists()) {
      const data = JSON.parse(await file.text());
      cachedJobs = data;
      lastCacheTime = Date.now();
      return data;
    }
  } catch (err) {
    logLine('logs/error.log', `Failed to load cache file: ${err}`);
  }
  return null;
};

// Version endpoint sourced from package.json
app.get('/version', (c) => {
  try {
    const pkgRaw = fs.readFileSync('./package.json', 'utf-8');
    const pkg = JSON.parse(pkgRaw);
    return c.json({ version: pkg.version || '0.0.0', badge: pkg.badge || 'Unknown' });
  } catch (err) {
    logLine('logs/error.log', `version endpoint error: ${(err as Error)?.message || String(err)}`);
    return c.json({ version: '0.0.0' }, 200);
  }
});

// Jobs endpoint with Redis caching
app.get('/api/jobs', async (c) => {
  const page = parseInt(c.req.query('page') || '1');
  const perPage = parseInt(c.req.query('perPage') || '50');
  const sort = c.req.query('sort') || '-Job_Number';
  
  const cacheKey = `jobs:page:${page}:perPage:${perPage}:sort:${sort}`;
  const ttl = 300; // 5 minutes cache
  
  try {
    // Redis disabled - skip cache check
    // if (isRedisConnected()) {
    //   const cached = await getCache(cacheKey);
    //   if (cached) {
    //     logLine('logs/server.log', `Cache HIT for ${cacheKey}`);
    //     return c.json(cached);
    //   }
    //   logLine('logs/server.log', `Cache MISS for ${cacheKey}`);
    // }
    
    // Fetch from PocketBase
    const pbUrl = `https://pocketbase.ccllc.pro/api/collections/pbc_1407612689/records?page=${page}&perPage=${perPage}&sort=${sort}`;
    const authHeader = c.req.header('Authorization') || '';
    
    const response = await fetch(pbUrl, {
      headers: authHeader ? { Authorization: authHeader } : {}
    });
    
    if (!response.ok) {
      throw new Error(`PocketBase returned ${response.status}`);
    }
    
    const data = await response.json();
    
    // Redis disabled - skip cache storage
    // if (isRedisConnected()) {
    //   await setCache(cacheKey, data, ttl);
    //   logLine('logs/server.log', `Cached ${cacheKey} for ${ttl}s`);
    // }
    
    return c.json(data);
    
  } catch (err) {
    logLine('logs/error.log', `jobs endpoint error: ${(err as Error)?.message || String(err)}`);
    return c.json({ error: 'Failed to fetch jobs' }, 500);
  }
});

// Fast endpoint: returns jobs with pagination
app.get('/api/jobs-all', async (c) => {
  try {
    // Get page and perPage from query params, default to first page with 100 items
    const page = parseInt(c.req.query('page') || '1');
    const perPage = parseInt(c.req.query('perPage') || '100');
    
    // Return in-memory cache if available
    if (cachedJobs && cachedJobs.items && Array.isArray(cachedJobs.items)) {
      const allJobs = cachedJobs.items;
      const totalItems = allJobs.length;
      const totalPages = Math.ceil(totalItems / perPage);
      const startIdx = (page - 1) * perPage;
      const endIdx = startIdx + perPage;
      const pageJobs = allJobs.slice(startIdx, endIdx);
      
      // Refresh in background if older than 5 minutes
      if (Date.now() - lastCacheTime > 5 * 60 * 1000) {
        fetchAllJobsProgressively(c.req.header('Authorization') || '').catch(err => {
          logLine('logs/error.log', `Background refresh error: ${err}`);
        });
      }
      
      return c.json({
        page,
        perPage: pageJobs.length,
        totalItems,
        totalPages,
        items: pageJobs
      });
    }
    
    // Try to load from disk if not in memory
    const diskCache = await loadCacheFile();
    if (diskCache && diskCache.items && Array.isArray(diskCache.items)) {
      const allJobs = diskCache.items;
      const totalItems = allJobs.length;
      const totalPages = Math.ceil(totalItems / perPage);
      const startIdx = (page - 1) * perPage;
      const endIdx = startIdx + perPage;
      const pageJobs = allJobs.slice(startIdx, endIdx);
      
      // Refresh in background
      fetchAllJobsProgressively(c.req.header('Authorization') || '').catch(err => {
        logLine('logs/error.log', `Background refresh error: ${err}`);
      });
      
      return c.json({
        page,
        perPage: pageJobs.length,
        totalItems,
        totalPages,
        items: pageJobs
      });
    }
    
    // No cache: fetch first page from PocketBase
    if (!isFetching) {
      isFetching = true;
      fetchAllJobsProgressively(c.req.header('Authorization') || '').catch(err => {
        logLine('logs/error.log', `Progressive fetch error: ${err}`);
        isFetching = false;
      });
    }
    
    // Return first batch immediately
    try {
      const pbUrl = `https://pocketbase.ccllc.pro/api/collections/pbc_1407612689/records?page=1&perPage=100&sort=-Job_Number`;
      const response = await fetch(pbUrl, {
        headers: c.req.header('Authorization') ? { Authorization: c.req.header('Authorization')! } : {}
      });
      
      if (response.ok) {
        const data = await response.json();
        const items = data.items || [];
        return c.json({
          page: 1,
          perPage: items.length,
          totalItems: items.length,
          totalPages: 1,
          items: items
        });
      }
    } catch (err) {
      logLine('logs/error.log', `Failed to get first page: ${err}`);
    }
    
    return c.json({ error: 'No cache available and initial fetch failed' }, 503);
  } catch(err) {
    logLine('logs/error.log', `jobs-all endpoint error: ${err}`);
    return c.json({ error: 'Failed to fetch jobs' }, 500);
  }
});

// Progressive fetch helper: fetches all jobs in background, updating cache as it goes
async function fetchAllJobsProgressively(authHeader: string): Promise<void> {
  try {
    const perPage = 500;
    
    // Get first page to determine total
    const firstUrl = `https://pocketbase.ccllc.pro/api/collections/pbc_1407612689/records?page=1&perPage=${perPage}&sort=-Job_Number`;
    const firstResponse = await fetch(firstUrl, {
      headers: authHeader ? { Authorization: authHeader } : {}
    });
    
    if (!firstResponse.ok) {
      throw new Error(`PocketBase returned ${firstResponse.status}`);
    }
    
    const firstData = await firstResponse.json();
    const totalItems = firstData.totalItems || 0;
    const totalPages = Math.ceil(totalItems / perPage);
    
    const allItems = [...(firstData.items || [])];
    partialJobs = allItems;
    
    // Fetch remaining pages in parallel
    if (totalPages > 1) {
      const pagePromises = [];
      for (let page = 2; page <= totalPages; page++) {
        const pbUrl = `https://pocketbase.ccllc.pro/api/collections/pbc_1407612689/records?page=${page}&perPage=${perPage}&sort=-Job_Number`;
        pagePromises.push(
          fetch(pbUrl, {
            headers: authHeader ? { Authorization: authHeader } : {}
          }).then(r => r.json())
        );
      }
      
      const results = await Promise.all(pagePromises);
      for (const result of results) {
        allItems.push(...(result.items || []));
      }
    }
    
    // Save final result to cache file
    const cacheData = {
      page: 1,
      perPage: allItems.length,
      totalItems: allItems.length,
      totalPages: 1,
      items: allItems
    };
    
    await saveCacheFile(cacheData);
    isFetching = false;
    logLine('logs/server.log', `✓ Progressive fetch complete: ${allItems.length} jobs cached`);
  } catch (err) {
    logLine('logs/error.log', `Progressive fetch failed: ${err}`);
    isFetching = false;
  }
}

// Helper function to fetch all jobs from PocketBase
async function fetchAllJobsFromPocketBase(authHeader: string): Promise<any> {
  const perPage = 500;
  
  // First, get total count
  const firstUrl = `https://pocketbase.ccllc.pro/api/collections/pbc_1407612689/records?page=1&perPage=${perPage}&sort=-Job_Number`;
  const firstResponse = await fetch(firstUrl, {
    headers: authHeader ? { Authorization: authHeader } : {}
  });
  
  if (!firstResponse.ok) {
    throw new Error(`PocketBase returned ${firstResponse.status}`);
  }
  
  const firstData = await firstResponse.json();
  const totalItems = firstData.totalItems || 0;
  const totalPages = Math.ceil(totalItems / perPage);
  
  // Fetch all pages in parallel
  const allItems = [...(firstData.items || [])];
  
  if (totalPages > 1) {
    const pagePromises = [];
    for (let page = 2; page <= totalPages; page++) {
      const pbUrl = `https://pocketbase.ccllc.pro/api/collections/pbc_1407612689/records?page=${page}&perPage=${perPage}&sort=-Job_Number`;
      pagePromises.push(
        fetch(pbUrl, {
          headers: authHeader ? { Authorization: authHeader } : {}
        }).then(r => r.json())
      );
    }
    
    const results = await Promise.all(pagePromises);
    for (const result of results) {
      allItems.push(...(result.items || []));
    }
  }
  
  return {
    page: 1,
    perPage: allItems.length,
    totalItems: allItems.length,
    totalPages: 1,
    items: allItems
  };
}

// Helper function to refresh jobs cache in background (disabled)
async function refreshJobsCache(cacheKey: string, ttl: number, authHeader: string): Promise<void> {
  try {
    const result = await fetchAllJobsFromPocketBase(authHeader);
    // await setCache(cacheKey, result, ttl);
    logLine('logs/server.log', `Background refresh: fetched ${result.items.length} jobs (cache disabled)`);
  } catch (err) {
    logLine('logs/error.log', `Background refresh error: ${(err as Error)?.message || String(err)}`);
  }
}


// --- Microsoft Graph helpers ---
const getGraphToken = (c?: any) => {
  const headerToken = c?.req?.header ? c.req.header('x-graph-token') : '';
  const envToken = process.env.GRAPH_TOKEN || process.env.MS_GRAPH_TOKEN || '';
  const token = headerToken || envToken;
  console.log('[getGraphToken] Header token:', headerToken ? headerToken.substring(0, 20) + '...' : 'NONE');
  console.log('[getGraphToken] Env token:', envToken ? 'SET' : 'NOT SET');
  console.log('[getGraphToken] Using:', token ? token.substring(0, 20) + '...' : 'NONE');
  return token;
};

const b64Url = (input: string) =>
  Buffer.from(input).toString('base64').replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/g, '');

type DriveItem = {
  id: string;
  name: string;
  webUrl?: string;
  size?: number;
  lastModifiedDateTime?: string;
  file?: { mimeType?: string };
  folder?: { childCount?: number };
  parentReference?: { path?: string; driveId?: string };
};

const fetchJson = async (url: string, token: string) => {
  const res = await fetch(url, {
    headers: {
      Authorization: `Bearer ${token}`,
      Accept: 'application/json',
    },
  });
  if (!res.ok) {
    const text = await res.text();
    const err: any = new Error(`Graph ${res.status}: ${text}`);
    err.status = res.status;
    throw err;
  }
  return res.json();
};

const resolveShareLink = async (link: string, token: string) => {
  // Decode the link in case it comes pre-encoded from the database
  const decodedLink = decodeURIComponent(link);
  console.log('[resolveShareLink] Decoded link:', decodedLink);
  
  // Check if this is a short sharing link (/:f:/ or /:b:/) or a direct document library URL
  if (decodedLink.includes('/:f:/') || decodedLink.includes('/:b:/')) {
    // Short sharing link - use shares API
    const encoded = `u!${b64Url(decodedLink)}`;
    console.log('[resolveShareLink] Using shares API, encoded:', encoded);
    const data = await fetchJson(`https://graph.microsoft.com/v1.0/shares/${encoded}/driveItem`, token);
    return { driveId: data.parentReference?.driveId as string, itemId: data.id as string };
  } else {
    // Direct document library URL - parse it and use drive API
    // Example: https://czflex.sharepoint.com/sites/Team/Shared Documents/Forms/AllItems.aspx?RootFolder=/sites/Team/Shared Documents/General/...
    const url = new URL(decodedLink);
    const pathMatch = url.hostname.match(/^([^.]+)\.sharepoint\.com$/);
    if (!pathMatch) throw new Error('Invalid SharePoint URL');
    
    const hostname = pathMatch[1]; // e.g., 'czflex'
    const sitePath = url.pathname.split('/Shared')[0]; // e.g., /sites/Team
    const rootFolderParam = url.searchParams.get('RootFolder');
    if (!rootFolderParam) throw new Error('RootFolder parameter missing');
    
    // Extract the folder path relative to the document library
    // RootFolder format: /sites/Team/Shared Documents/General/Operations [Server]/...
    // We need: General/Operations [Server]/...
    const folderPath = rootFolderParam.split('/Shared Documents/')[1];
    if (!folderPath) throw new Error('Could not parse folder path');
    
    console.log('[resolveShareLink] Hostname:', hostname);
    console.log('[resolveShareLink] Site path:', sitePath);
    console.log('[resolveShareLink] Folder path:', folderPath);
    
    // Get the site ID first using hostname:sitePath format
    const siteData = await fetchJson(`https://graph.microsoft.com/v1.0/sites/${hostname}.sharepoint.com:${sitePath}`, token);
    const siteId = siteData.id;
    
    // Get the default document library drive
    const driveData = await fetchJson(`https://graph.microsoft.com/v1.0/sites/${siteId}/drive`, token);
    const driveId = driveData.id;
    
    // Get the folder item by path
    const itemData = await fetchJson(
      `https://graph.microsoft.com/v1.0/drives/${driveId}/root:/${folderPath}`,
      token
    );
    
    console.log('[resolveShareLink] Resolved to driveId:', driveId, 'itemId:', itemData.id);
    return { driveId, itemId: itemData.id };
  }
};

const listChildrenRecursive = async (
  driveId: string,
  itemId: string,
  depth = 0,
  maxDepth = 5,
  token: string,
): Promise<DriveItem[]> => {
  const out: DriveItem[] = [];
  const data = await fetchJson(`https://graph.microsoft.com/v1.0/drives/${driveId}/items/${itemId}/children`, token);
  for (const child of data.value || []) {
    out.push(child as DriveItem);
    if (child.folder && depth < maxDepth) {
      const nested = await listChildrenRecursive(driveId, child.id, depth + 1, maxDepth, token);
      out.push(...nested);
    }
  }
  return out;
};

const searchWithinFolder = async (driveId: string, itemId: string, query: string, token: string): Promise<DriveItem[]> => {
  const data = await fetchJson(
    `https://graph.microsoft.com/v1.0/drives/${driveId}/items/${itemId}/search(q='${encodeURIComponent(query)}')`,
    token,
  );
  return (data.value || []) as DriveItem[];
};

const filterByCategory = (items: DriveItem[], category?: string, pdfOnly: boolean = true) => {
  // First filter: show PDF files and Word documents (which will be converted to PDF)
  let filtered = items;
  if (pdfOnly) {
    filtered = items.filter((i) => {
      if (i.folder) return false;
      const name = i.name.toLowerCase();
      const mimeType = i.file?.mimeType?.toLowerCase() || '';
      // Include PDFs, Word documents, and images
      return name.endsWith('.pdf') || mimeType.includes('pdf') ||
             name.endsWith('.doc') || name.endsWith('.docx') || mimeType.includes('word') ||
             name.endsWith('.jpg') || name.endsWith('.jpeg') || name.endsWith('.png') || 
             name.endsWith('.gif') || name.endsWith('.bmp') || name.endsWith('.tiff') || 
             name.endsWith('.webp') || mimeType.includes('image');
    });
  }
  
  // Second filter: category filtering (if specified)
  if (!category) return filtered;
  const nameHas = (name: string, words: string[]) => words.some((w) => name.includes(w));
  const lc = (s: string) => (s || '').toLowerCase();
  const contractWords = ['contract', 'estimate', 'proposal', 'bid', 'award', 'agreement', 'sow'];
  const planWords = ['plan', 'drawing', 'dwg', 'pdf', 'sheet', 'layout'];
  return filtered.filter((i) => {
    const n = lc(i.name);
    if (category === 'contracts') return nameHas(n, contractWords);
    if (category === 'plans') return nameHas(n, planWords);
    return true;
  });
};

// List/search job files via Graph using a shared folder link
app.get('/api/job-files', async (c) => {
  try {
    console.log('[job-files] Request received');
    const token = getGraphToken(c);
    if (!token) {
      console.log('[job-files] No token found');
      return c.json({ error: 'GRAPH_TOKEN missing' }, 500);
    }
    console.log('[job-files] Token found:', token.substring(0, 20) + '...');
    const link = c.req.query('link');
    const q = c.req.query('q') || '';
    const category = c.req.query('category') || '';
    if (!link) return c.json({ error: 'link required' }, 400);
    console.log('[job-files] Link:', link);

    const { driveId, itemId } = await resolveShareLink(link, token);

    let items: DriveItem[] = [];
    if (q) {
      items = await searchWithinFolder(driveId, itemId, q, token);
    } else {
      // Walk subfolders up to depth 5
      items = await listChildrenRecursive(driveId, itemId, 0, 5, token);
    }

    // Filter to show only PDFs by default (can be disabled with pdfOnly=false query param)
    const pdfOnly = c.req.query('pdfOnly') !== 'false';
    const filtered = filterByCategory(items, category, pdfOnly);
    console.log(`[job-files] Found ${items.length} total items, ${filtered.length} after filtering`);

    const mapped = filtered.map((i) => ({
      id: i.id,
      name: i.name,
      url: i.webUrl,
      driveId: i.parentReference?.driveId || driveId,
      size: i.size,
      modified: i.lastModifiedDateTime,
      contentType: i.file?.mimeType,
      isFolder: Boolean(i.folder),
      path: i.parentReference?.path || '',
    }));

    return c.json({ items: mapped, total: mapped.length, source: q ? 'search' : 'walk', driveId });
  } catch (err) {
    const message = (err as Error)?.message || String(err);
    const status = (err as any)?.status || 500;
    console.error('[job-files] ERROR:', message);
    logLine('logs/error.log', `/api/job-files error: ${message}`);
    return c.json({ error: message }, status);
  }
});

// Stream file content via Graph to avoid CSP issues for inline preview
app.get('/api/job-file-content', async (c) => {
  try {
    const token = getGraphToken(c);
    if (!token) return c.json({ error: 'GRAPH_TOKEN missing' }, 500);
    const driveId = c.req.query('driveId');
    const itemId = c.req.query('itemId');
    if (!driveId || !itemId) return c.json({ error: 'driveId and itemId required' }, 400);

    const res = await fetch(`https://graph.microsoft.com/v1.0/drives/${driveId}/items/${itemId}/content`, {
      headers: { Authorization: `Bearer ${token}` },
    });
    if (!res.ok) {
      const text = await res.text();
      logLine('logs/error.log', `/api/job-file-content failed: ${res.status} - ${text}`);
      return c.json({ error: `Graph ${res.status}: ${text}` }, 502);
    }
    const headers: Record<string, string> = {};
    const ct = res.headers.get('content-type');
    const cd = res.headers.get('content-disposition');
    if (ct) headers['Content-Type'] = ct;
    if (cd) headers['Content-Disposition'] = cd;
    return new Response(res.body, { status: 200, headers });
  } catch (err) {
    const message = (err as Error)?.message || String(err);
    const status = (err as any)?.status || 500;
    logLine('logs/error.log', `/api/job-file-content error: ${message}`);
    return c.json({ error: message }, status);
  }
});

// Convert Word documents to PDF for display
app.get('/api/job-file-pdf', async (c) => {
  try {
    const token = getGraphToken(c);
    if (!token) return c.json({ error: 'GRAPH_TOKEN missing' }, 500);
    const driveId = c.req.query('driveId');
    const itemId = c.req.query('itemId');
    if (!driveId || !itemId) return c.json({ error: 'driveId and itemId required' }, 400);

    // Use Graph API to convert to PDF format
    const res = await fetch(`https://graph.microsoft.com/v1.0/drives/${driveId}/items/${itemId}/content?format=pdf`, {
      headers: { Authorization: `Bearer ${token}` },
    });
    if (!res.ok) {
      const text = await res.text();
      logLine('logs/error.log', `/api/job-file-pdf conversion failed: ${res.status} - ${text}`);
      return c.json({ error: `PDF conversion failed: ${res.status}` }, 502);
    }
    const headers: Record<string, string> = {
      'Content-Type': 'application/pdf',
    };
    const cd = res.headers.get('content-disposition');
    if (cd) {
      // Replace .docx/.doc extension with .pdf in filename
      headers['Content-Disposition'] = cd.replace(/\.(docx?)/gi, '.pdf');
    }
    logLine('logs/server.log', `Successfully converted document to PDF: driveId=${driveId}, itemId=${itemId}`);
    return new Response(res.body, { status: 200, headers });
  } catch (err) {
    const message = (err as Error)?.message || String(err);
    const status = (err as any)?.status || 500;
    logLine('logs/error.log', `/api/job-file-pdf error: ${message}`);
    return c.json({ error: message }, status);
  }
});

// Mutation logging endpoint
app.post('/log-change', async (c) => {
  try {
    const body = await c.req.json();
    const { action = 'unknown', user = 'unknown', target = '', detail = '' } = body || {};
    const payload = JSON.stringify({ action, user, target, detail });
    logLine('logs/changes.log', payload);
    return c.json({ status: 'ok' });
  } catch (err) {
    logLine('logs/error.log', `log-change error: ${(err as Error)?.message || String(err)}`);
    return c.text('Bad Request', 400);
  }
});

// Serve static files from the frontend directory (must come after API routes)
// Add cache headers for static assets
app.use('/assets/*', async (c, next) => {
  await next();
  // Cache assets for 1 year
  c.header('Cache-Control', 'public, max-age=31536000, immutable');
});
app.use('/*', serveStatic({ root: './frontend' }));

// Error handler
app.onError((err, c) => {
  logLine('logs/error.log', `Unhandled error: ${err?.message || err}`);
  return c.text('Internal Server Error', 500);
});

// Default to 3000 for mode6test instance; can be overridden by Environment=PORT
const PORT = Number(process.env.PORT || 3000);

logLine('logs/server.log', `Starting frontend server on port ${PORT}`);

// Load cache on startup
(async () => {
  try {
    const cached = await loadCacheFile();
    if (cached) {
      logLine('logs/server.log', `✓ Loaded cache from disk: ${cached.items?.length || 0} jobs`);
    } else {
      logLine('logs/server.log', 'No cache file found, will fetch from PocketBase on first request');
    }
  } catch (err) {
    logLine('logs/error.log', `Startup cache load error: ${(err as Error)?.message || String(err)}`);
  }
})();

// Immediately load cache synchronously if it exists (for fastest first request)
(async () => {
  try {
    await loadCacheFile();
  } catch (err) {
    // Silent fail
  }
})();

// Background refresh disabled - no longer polling
// setInterval(async () => {
//   try {
//     const result = await fetchAllJobsFromPocketBase('');
//     await saveCacheFile(result);
//     logLine('logs/server.log', `✓ Background refresh: updated cache with ${result.items?.length || 0} jobs`);
//   } catch (err) {
//     logLine('logs/error.log', `Periodic refresh error: ${(err as Error)?.message || String(err)}`);
//   }
// }, 5 * 60 * 1000); // Every 5 minutes

// Graceful shutdown logging
const shutdown = (signal: string) => {
  logLine('logs/server.log', `Shutting down due to ${signal}`);
  process.exit(0);
};
process.on('SIGINT', () => shutdown('SIGINT'));
process.on('SIGTERM', () => shutdown('SIGTERM'));

export default {
  port: PORT,
  fetch: app.fetch,
};
