//= require harpiya/frontend/coupon_manager

Harpiya.ready(function ($) {
  var formUpdateCart = $('form#update-cart')

  function buildEventTriggerObject(dataset, quantity) {
    if (!dataset || !quantity) return false

    var triggerObject = {
      type: 'product_remove_from_cart',
      variant_sku: dataset.variantSku,
      variant_name: dataset.variantName,
      variant_price: dataset.variantPrice,
      variant_options: dataset.variantOptions,
      variant_quantity: quantity
    }

    return triggerObject
  }

  if (formUpdateCart.length) {
    var clearInvalidCouponField = function() {
      var couponCodeField = $('#order_coupon_code');
      var couponStatus = $('#coupon_status');
      if (!!couponCodeField.val() && couponStatus.hasClass('alert-error')) {
        couponCodeField.val('')
      }
    }

    formUpdateCart.find('a.delete').show().one('click', function (event) {
      var itemId = $(this).attr('data-id')
      var link = $(event.currentTarget);
      var quantityInputs = $("form#update-cart input.shopping-cart-item-quantity-input[data-id='" + itemId + "']")
      var quantity = $(quantityInputs).val()
      $(this).parents('.shopping-cart-item').first().find('input.shopping-cart-item-quantity-input').val(0)
      clearInvalidCouponField()
      if (link[0] && link[0].dataset && quantity) {
        link.trigger(buildEventTriggerObject(link[0].dataset, quantity))
      }
      formUpdateCart.submit()
      return false
    })
    formUpdateCart.find('input.shopping-cart-item-quantity-input').on('keyup', function(e) {
      var itemId = $(this).attr('data-id')
      var value = $(this).val()
      var newValue = isNaN(value) || value === '' ? value : parseInt(value, 10)
      var targetInputs = $("form#update-cart input.shopping-cart-item-quantity-input[data-id='" + itemId + "']")
      $(targetInputs).val(newValue)
    })
    formUpdateCart.find('input.shopping-cart-item-quantity-input').on('change', function(e) {
      clearInvalidCouponField()
      formUpdateCart.submit()
    })
    formUpdateCart.find('button.shopping-cart-item-quantity-decrease-btn').off('click').on('click', function() {
      var itemId = $(this).attr('data-id')
      var input = $("input[data-id='" + itemId + "']")
      var inputValue = parseInt($(input).val(), 10)

      if (inputValue > 1) {
        $(input).val(inputValue - 1)
        clearInvalidCouponField()
        formUpdateCart.submit()
      }
    })
    formUpdateCart.find('button.shopping-cart-item-quantity-increase-btn').off('click').on('click', function() {
      var itemId = $(this).attr('data-id')
      var input = $("input[data-id='" + itemId + "']")
      var inputValue = parseInt($(input).val(), 10)

      $(input).val(inputValue + 1)
      clearInvalidCouponField()
      formUpdateCart.submit()
    })
    formUpdateCart.find('button#shopping-cart-coupon-code-button').off('click').on('click', function(event) {
      var couponCodeField = $('#order_coupon_code');

      if (!$.trim(couponCodeField.val()).length) {
        event.preventDefault()
        return false
      }
    })

    formUpdateCart.find('button#shopping-cart-remove-coupon-code-button').off('click').on('click', function(event) {
      var input = {
        appliedCouponCodeField: $('#order_applied_coupon_code'),
        couponCodeField: $('#order_coupon_code'),
        couponStatus: $('#coupon_status'),
        couponButton: $('#shopping-cart-coupon-code-button'),
        removeCouponButton: $('#shopping-cart-remove-coupon-code-button')
      }

      if (new CouponManager(input).removeCoupon()) {
        return true
      } else {
        event.preventDefault()
        return false
      }
    })
  }
  formUpdateCart.submit(function (event) {
    var input = {
      couponCodeField: $('#order_coupon_code'),
      couponStatus: $('#coupon_status'),
      couponButton: $('#shopping-cart-coupon-code-button')
    }
    var updateButton = formUpdateCart.find('#update-button')
    updateButton.attr('disabled', true)
    if ($.trim(input.couponCodeField.val()).length > 0) {
      // eslint-disable-next-line no-undef
      if (new CouponManager(input).applyCoupon()) {
        this.submit()
        return true
      } else {
        updateButton.attr('disabled', false)
        event.preventDefault()
        return false
      }
    }
  })

  if (!Harpiya.cartFetched) Harpiya.fetchCart()
})

Harpiya.fetchCart = function () {
  return $.ajax({
    url: Harpiya.localizedPathFor('cart_link')
  }).done(function (data) {
    Harpiya.cartFetched = true
    return $('#link-to-cart').html(data)
  })
}

Harpiya.ensureCart = function (successCallback) {
  if (HarpiyaAPI.orderToken) {
    successCallback()
  } else {
    fetch(Harpiya.routes.ensure_cart, {
      method: 'POST',
      credentials: 'same-origin'
    }).then(function (response) {
      switch (response.status) {
        case 200:
          response.json().then(function (json) {
            HarpiyaAPI.orderToken = json.token
            successCallback()
          })
          break
      }
    })
  }
}