const router = require('express').Router();
const { Tag, Product, ProductTag } = require('../../models');

// The `/api/tags` endpoint

router.get('/', async (req, res) => {
  // find all tags
  // be sure to include its associated Product data
  try{
    const tagData = await Tag.findAll({
      include: [{model: Product, through: ProductTag, as: 'prod'}]
    });
    res.status(200).json(tagData);
  } catch (err) {
    res.status(500).json(tagData);
  } 
});

router.get('/:id', async (req, res) => {
  // find a single tag by its `id`
  // be sure to include its associated Product data
  try {
    const tagData = await Tag.findByPk(req.params.id, {
      include: [{model: Product, through: ProductTag ,as: 'prod'}]
    });
    if(!tagData) {
      res.status(404).json({message: 'No tag found with this id!'});
      return;
    }
    res.status(200).json(tagData);
  } catch (err) {
    res.status(500).json(err);
  }
});

router.post('/', async (req, res) => {
  // create a new tag
  Tag.create(req.body)
  .then((tag) => {
  res.status(200).json(tag);
  });   
});

router.put('/:id', async (req, res) => {
  // update a tag's name by its `id` value
  Tag.update(req.body, {
    where: {
      id: req.params.id,
    },
  })
  res.status(200).json({ Success: `Updated tag id: ${req.params.id} `});
});

router.delete('/:id', async (req, res) => {
  // delete on tag by its `id` value
  try {
    const tagData = await Tag.destroy({
      where: { id: req.params.id }
    });
    if(!tagData) {
      res.status(404).json({ message: 'No tag found with this id!'});
      return;
    }
    res.status(200).json(tagData);
  } catch (err) {
    res.status(500).json(err);
  }
});

module.exports = router;
