const { Order } = require('../models');
const reportQueue = require('../queues/reportQueue');
const logger = require('../utils/logger');

class OrderController {
  async create(req, res) {
    try {
      const order = await Order.create({
        productName: req.body.productName,
        productType: req.body.productType,
        ingredients: req.body.ingredients,
        usage: req.body.usage,
        format: req.body.format,
        priceLevel: req.body.priceLevel,
        certifications: req.body.certifications,
        targetGroups: req.body.targetGroups || [],
        targetMarkets: req.body.targetMarkets || [],
        currentMarkets: req.body.currentMarkets || [],
        email: req.body.email,
        priority: req.body.priority || 'normal',
        estimatedCompletion: new Date(Date.now() + 72 * 60 * 60 * 1000) // 72 hours
      });

      // Add to queue for processing
      await reportQueue.add({
        orderId: order.id
      }, {
        delay: 1000, // Start after 1 second
        priority: req.body.priority === 'urgent' ? 1 : 
                  req.body.priority === 'high' ? 2 : 3
      });

      logger.info(`Order created: ${order.id}`);

      res.status(201).json({
        success: true,
        data: {
          id: order.id,
          productName: order.productName,
          status: order.status,
          progress: order.progress,
          estimatedCompletion: order.estimatedCompletion,
          message: 'Din beställning har mottagits och bearbetas.'
        }
      });
    } catch (error) {
      logger.error('Order creation failed:', error);
      res.status(500).json({
        error: 'Kunde inte skapa beställning',
        message: error.message
      });
    }
  }

  async getById(req, res) {
    try {
      const order = await Order.findByPk(req.params.id);
      
      if (!order) {
        return res.status(404).json({ error: 'Beställning hittades inte' });
      }

      res.json({
        success: true,
        data: order
      });
    } catch (error) {
      logger.error('Get order failed:', error);
      res.status(500).json({ error: 'Kunde inte hämta beställning' });
    }
  }

  async getByEmail(req, res) {
    try {
      const orders = await Order.findAll({
        where: { email: req.query.email },
        order: [['createdAt', 'DESC']]
      });

      res.json({
        success: true,
        data: orders
      });
    } catch (error) {
      logger.error('Get orders by email failed:', error);
      res.status(500).json({ error: 'Kunde inte hämta beställningar' });
    }
  }

  async getAll(req, res) {
    try {
      const { status, page = 1, limit = 20 } = req.query;
      const where = {};
      
      if (status) where.status = status;

      const orders = await Order.findAndCountAll({
        where,
        order: [['createdAt', 'DESC']],
        limit: parseInt(limit),
        offset: (parseInt(page) - 1) * parseInt(limit)
      });

      res.json({
        success: true,
        data: orders.rows,
        pagination: {
          total: orders.count,
          page: parseInt(page),
          pages: Math.ceil(orders.count / parseInt(limit))
        }
      });
    } catch (error) {
      logger.error('Get all orders failed:', error);
      res.status(500).json({ error: 'Kunde inte hämta beställningar' });
    }
  }

  async updateStatus(req, res) {
    try {
      const order = await Order.findByPk(req.params.id);
      
      if (!order) {
        return res.status(404).json({ error: 'Beställning hittades inte' });
      }

      await order.update({
        status: req.body.status,
        progress: req.body.progress,
        progressMessage: req.body.progressMessage
      });

      res.json({
        success: true,
        data: order
      });
    } catch (error) {
      logger.error('Update order status failed:', error);
      res.status(500).json({ error: 'Kunde inte uppdatera status' });
    }
  }
}

module.exports = new OrderController();