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: Product });
    //  include: ({ model: ProductTag, through: Product, as: 'product_tag' })
    // });
    res.status(200).json(tagData);
  } catch (err) {
    res.status(500).json(err);
  }
});

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: Product });
     // include: ({ model: Product, through: ProductTag})
    // });

    if (!tagData) {
      res.status(404).json({ message: 'No Tag by this id!' });
      return;
    }
    res.status(200).json(tagData);
  } catch (err) {
    res.status(500).json(err);
  }
});

router.post('/', async (req, res) => {
  // create a new tag
  try {
    const tagData = await Tag.create(req.body);
    res.status(200).json(tagData);
  } catch (err) {
    res.status(400).json(err);
  }
});

router.put('/:id', async (req, res) => {
  // update a tag's name by its `id` value
  try {
    const tagData = await Tag.update(req.body, {
      where: {
        id: req.params.id
      }});

    // if (!tagData) {
    //   res.status(404).json({ message: 'No Tag by this id!' });
    //   return;
    // }
    res.status(200).json(tagData);
  } catch (err) {
    res.status(500).json(err)
  }
});

router.delete('/:id', async (req, res) => {
  try {
    const tagData = await Tag.destroy({
      where: {
        id: req.params.id
      }
    });

    if (!tagData) {
      res.status(404).json({ message: 'message: no Tag found with this id!' });
      return;
    }
    
    res.status(200).json(tagData);
  } catch (err) {
    res.status(500).json(err)
  }
});

module.exports = router;
