text: const router = require('express').Router();
  const { Tag, Product, ProductTag } = require('../../models');
  
  // The `/api/tags` endpoint
  
  router.get('/', (req, res) => {
    // find all tags
    // be sure to include its associated Product data
    Tag.findAll({
      include: [
        {
          model: Product,
          attributes: ['id', 'product_name', 'price', 'stock', 'category_id']
        }
      ]
    })
    .then(dbTagData => res.json(dbTagData))
    .catch(err => {
      console.log(err);
      res.status(500).json(err);
    })
  });
  
  router.get('/:id', (req, res) => {
    // find a single tag by its `id`
    // be sure to include its associated Product data
    Tag.findOne({
      where: {
        id: req.params.id
      },
      include: [
        {
          model: Product,
          attributes: ['id', 'product_name', 'price', 'stock', 'category_id']
        }
      ]
    })
      .then(dbTagData => {
        if (!dbTagData) {
          res.status(404).json({ message: 'No tag found with this id'});
          return;
        }
        res.json(dbTagData);
      })
      .catch(err => {
        console.log(err);
        res.status(500).json(err);
      });
  });
  
  
  router.post('/', (req, res) => {
    // create a new tag
    Tag.create({
      tag_name: req.body.tag_name
    })
    .then(dbTagData => res.json(dbTagData))
    .catch(err => {
      console.log(err);
      res.status(500).json(err);
    });
  });
  
  router.put('/:id', (req, res) => {
    // update a tag's name by its `id` value
    Tag.update(req.body, {
      where: {
          id: req.params.id
      }
    })
      .then(dbTagData => {
          if (!dbTagData[0]) {
              res.status(404).json({ message: 'No tag found with this id'});
              return;
          }
          res.json(dbTagData);
    })
      .catch(err => {
          console.log(err); 
          res.status(500).json(err);
    });
  
  });
  
  router.delete('/:id', (req, res) => {
    // delete on tag by its `id` value
    Tag.destroy({
      where: {
        id: req.params.id
      }
    })
    .then(dbTagData => {
      if (!dbTagData) {
        res.status(404).json({ message: 'No tag found with this ID'});
        return;
      }
      res.json(dbTagData);
    })
    .catch(err => {
      console.log(err);
      res.status(500).json(err);
    })
  });
  
  module.exports = router;
  