const express = require('express');
const router = express.Router();
const { auth } = require('../middleware/auth');
const PlatformPreset = require('../models/PlatformPreset');
const UserEquity = require('../models/UserEquity');
const User = require('../models/User');

router.get('/', async (req, res, next) => {
  try {
    const presets = await PlatformPreset.find({ status: 'active' })
      .sort({ isHot: -1, sortOrder: 1 })
      .lean();

    res.json({
      success: true,
      data: presets
    });
  } catch (error) {
    next(error);
  }
});

router.get('/hot', async (req, res, next) => {
  try {
    const presets = await PlatformPreset.find({ status: 'active', isHot: true })
      .sort({ sortOrder: 1 })
      .lean();

    res.json({
      success: true,
      data: presets
    });
  } catch (error) {
    next(error);
  }
});

router.post('/import/:id', auth, async (req, res, next) => {
  try {
    const { id } = req.params;
    const { expireDate, price } = req.body;

    const preset = await PlatformPreset.findById(id);

    if (!preset) {
      return res.status(404).json({
        success: false,
        error: '预设平台不存在'
      });
    }

    const user = await User.findById(req.user._id);

    if (!user.isVip) {
      const userEquityCount = await UserEquity.countDocuments({ owner: req.user._id });
      if (userEquityCount >= user.platformLimit) {
        return res.status(403).json({
          success: false,
          error: '非会员最多只能添加15个平台，请升级会员'
        });
      }
    }

    if (!expireDate) {
      return res.status(400).json({
        success: false,
        error: '缺少到期时间'
      });
    }

    const equityData = {
      platform: preset.platform,
      type: preset.type,
      expireDate,
      price: parseFloat(price) || preset.price || 0,
      benefits: preset.benefits.map(b => ({
        name: b.name,
        type: b.type,
        typeLabel: b.typeLabel,
        expireDate,
        used: false,
        usedTime: null
      })),
      owner: req.user._id,
      status: 'active',
      note: preset.description || ''
    };

    const equity = await UserEquity.create(equityData);

    user.platformCount = await UserEquity.countDocuments({ owner: req.user._id });
    await user.save();

    res.status(201).json({
      success: true,
      data: equity
    });
  } catch (error) {
    next(error);
  }
});

module.exports = router;