/**
 * Files Routes - SharePoint file operations
 * 
 * Note: Most file operations go through /api/jobs/:id/files
 * This route provides additional file utilities
 */

import { Hono } from 'hono';
import { graphService } from '../services/graphService';
import { tokenService } from '../services/tokenService';
import { pocketbaseService } from '../services/pocketbaseService';
import { authMiddleware, getUserId } from '../middleware/auth';
import { BadRequestError, NotFoundError } from '../middleware/errorHandler';

const files = new Hono();

// All file routes require authentication
files.use('/*', authMiddleware);

/**
 * GET /api/files
 * List files in a job's folder - requires jobId query param
 */
files.get('/', async (c) => {
  const userId = getUserId(c);
  const jobId = c.req.query('jobId');

  if (!jobId) {
    throw new BadRequestError('jobId query parameter required');
  }

  // Get job to find site/drive info
  const job = await pocketbaseService.getJob(jobId);
  if (!job) {
    throw new NotFoundError('Job not found');
  }

  if (!job.site_id || !job.drive_id) {
    return c.json({ files: [] });
  }

  const tokenResult = await tokenService.getToken(userId, 'graph');
  if (!tokenResult) {
    throw new BadRequestError('Graph token not available');
  }

  const result = await graphService.getFiles(
    tokenResult.token, 
    job.site_id, 
    job.drive_id, 
    job.folder_path
  );

  return c.json({ files: result.files });
});

/**
 * GET /api/files/download-url
 * Get download URL for a file - requires jobId and fileId
 */
files.get('/download-url', async (c) => {
  const userId = getUserId(c);
  const jobId = c.req.query('jobId');
  const fileId = c.req.query('fileId');

  if (!jobId || !fileId) {
    throw new BadRequestError('jobId and fileId query parameters required');
  }

  // Get job to find site/drive info
  const job = await pocketbaseService.getJob(jobId);
  if (!job || !job.site_id || !job.drive_id) {
    throw new NotFoundError('Job not found or not configured for files');
  }

  const tokenResult = await tokenService.getToken(userId, 'graph');
  if (!tokenResult) {
    throw new BadRequestError('Graph token not available');
  }

  const url = await graphService.getFileDownloadUrl(
    tokenResult.token, 
    job.site_id, 
    job.drive_id, 
    fileId
  );

  if (!url) {
    throw new NotFoundError('File not found');
  }

  return c.json({ url });
});

/**
 * GET /api/files/search
 * Search files in a job's SharePoint site
 */
files.get('/search', async (c) => {
  const userId = getUserId(c);
  const jobId = c.req.query('jobId');
  const query = c.req.query('q');

  if (!jobId || !query) {
    throw new BadRequestError('jobId and q query parameters required');
  }

  // Get job to find site info
  const job = await pocketbaseService.getJob(jobId);
  if (!job || !job.site_id) {
    throw new NotFoundError('Job not found or not configured for files');
  }

  const tokenResult = await tokenService.getToken(userId, 'graph');
  if (!tokenResult) {
    throw new BadRequestError('Graph token not available');
  }

  const results = await graphService.searchFiles(tokenResult.token, job.site_id, query);

  return c.json({ files: results });
});

export default files;