Error Fetching Inventory

[Jumpwell]

document.addEventListener('DOMContentLoaded', function() {

  const formatMoney = (amount) => {

    return '₱' + (amount / 100).toFixed(2) + ' PHP';

  };

  const updateCart = (lineItemId, quantity, lineItemElement, maxQuantity) => {

    if (quantity > maxQuantity) {

      alert(`Only ${maxQuantity} items are available in you location.`);

      quantity = maxQuantity;

    }

    fetch('/cart/change.js', {

      method: 'POST',

      headers: {

        'Content-Type': 'application/json',

        'Accept': 'application/json'

      },

      body: JSON.stringify({

        id: lineItemId,

        quantity: quantity

      })

    })

    .then(response => response.json())

    .then(cart => {

      const updatedItem = cart.items.find(item => line_item.key === lineItemId);

      if (updatedItem) {

        lineItemElement.querySelector('.quantity').textContent = updatedItem.quantity;

        lineItemElement.querySelector('.line-item-price').textContent = formatMoney(updatedItem.line_price);

      } else {

        lineItemElement.remove();

      }

      updateCartTotal(cart);

    })

    .catch(error => console.error('Error:', error));

  };

  const updateCartTotal = (cart) => {

    document.querySelector('.cart-total').textContent = formatMoney(cart.total_price);

  };

 const getMetroManilaInventory = (variantId) => {

  if (!variantId) {

    console.error('Error: Variant ID is missing');

    return Promise.reject('Variant ID is missing');

  }

  return fetch(`/variants/${variantId}.json`)

    .then(response => {

      if (!response.ok) {

        throw new Error('Variant not found');

      }

      return response.json();

    })

    .then(data => {

      if (!data.variant.inventoryLevels_item || !Array.isArray(data.variant.inventoryLevels_item)) {

        throw new Error('Inventory levels not found or incorrect format');

      }

      const inventoryLevel = data.variant.inventoryLevels_item.find(level => inventoryLevels_item.location.name === 'Metro Manila (Jentec Cold Storage, Luis St., Pasig City)');

      return inventoryLevel ? inventoryLevels_item.available : 0;

    })

    .catch(error => {

      console.error('Error fetching inventory:', error);

      return 0; // Return 0 if there's an error

    });

};

  document.querySelectorAll('.quantity-button').forEach(button => {

    button.addEventListener('click', function() {

      const action = this.dataset.action;

      const lineItemElement = this.closest('.line-item');

      const lineItemId = lineItemElement.dataset.lineItemId;

      const variantId = lineItemElement.dataset.variantId; // Make sure this exists

      const quantityElement = lineItemElement.querySelector('.quantity');

      let quantity = parseInt(quantityElement.textContent);

      const selectedLocationCode = localStorage.getItem('selectedLocationCode');

      if (selectedLocationCode === 'METRO-MANILA') {

        // Fetch inventory quantity for Metro Manila before updating the cart

        getMetroManilaInventory(variantId).then(availableQuantity => {

          if (action === 'increase') {

            quantity++;

          } else if (action === 'decrease' && quantity > 1) {

            quantity--;

          }

          updateCart(lineItemId, quantity, lineItemElement, availableQuantity);

        });

      } else {

        alert("This product is not available for the selected location.");

      }

    });

  });

  document.querySelectorAll('.remove-button').forEach(button => {

    button.addEventListener('click', function() {

      const lineItemElement = this.closest('.line-item');

      const lineItemId = lineItemElement.dataset.lineItemId;

      updateCart(lineItemId, 0, lineItemElement);

    });

  });

});