const express = require('express');
const multer = require('multer');
const path = require('path');
const fs = require('fs');
const { authMiddleware } = require('../middleware/auth');
const { parseTicketImage } = require('../services/ocr');

const router = express.Router();

// 配置文件上传
const uploadDir = path.join(__dirname, '../uploads');
if (!fs.existsSync(uploadDir)) {
  fs.mkdirSync(uploadDir, { recursive: true });
}

const storage = multer.diskStorage({
  destination: (req, file, cb) => cb(null, uploadDir),
  filename: (req, file, cb) => {
    const ext = path.extname(file.originalname);
    cb(null, `${Date.now()}-${Math.random().toString(36).slice(2)}${ext}`);
  }
});

const upload = multer({
  storage,
  limits: { fileSize: 10 * 1024 * 1024 },
  fileFilter: (req, file, cb) => {
    // 放宽图片类型限制
    if (file.mimetype.startsWith('image/')) {
      cb(null, true);
    } else {
      cb(new Error('只支持图片文件'));
    }
  }
});

router.use(authMiddleware);

// 上传并解析彩票图片
router.post('/parse', upload.single('image'), async (req, res) => {
  if (!req.file) {
    return res.status(400).json({ error: '请上传图片' });
  }

  try {
    const result = await parseTicketImage(req.file.path);
    result.image_path = `/uploads/${req.file.filename}`;
    res.json(result);
  } catch (err) {
    res.status(500).json({ error: err.message || '解析失败' });
  }
});

module.exports = router;