def get_menu_carousel():
"""Creates a sample carousel rich card.
Returns:
A :obj: A BusinessMessagesCarouselCard object with three cards.
"""
inventory = get_inventory_data()
card_content = []
for item in inventory['food']:
card_content.append(
BusinessMessagesCardContent(
title=item['name'],
description=item['price'],
suggestions=[
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text='Add item',
postbackData='{' +
f'"action":"{CMD_ADD_ITEM}","item_name":"{item["id"]}"'
+ '}'))
],
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=item['image_url'], forceRefresh=False))))
return BusinessMessagesCarouselCard(
cardContents=card_content,
cardWidth=BusinessMessagesCarouselCard.CardWidthValueValuesEnum.MEDIUM)
def get_sample_carousel():
"""Creates a sample carousel rich card.
Returns:
A :obj: A BusinessMessagesCarouselCard object with three cards.
"""
card_content = []
for i, sample_image in enumerate(SAMPLE_IMAGES):
card_content.append(
BusinessMessagesCardContent(
title='Card #' + str(i),
description='This is a sample card',
suggestions=get_sample_suggestions(),
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=sample_image, forceRefresh=False))))
return BusinessMessagesCarouselCard(
cardContents=card_content,
cardWidth=BusinessMessagesCarouselCard.CardWidthValueValuesEnum.MEDIUM)
def get_cart_carousel(cart_items):
'''
A function that returns the items in the shopping cart in a carousel.
'''
card_content = []
for cart_entity in cart_items:
card_content.append(
BusinessMessagesCardContent(
title=cart_entity.item.name,
description=f'Quantity: {cart_entity.quantity}',
suggestions=[
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text='➕',
postbackData=
f'{CMD_ADD_TO_CART}-{cart_entity.item.id}')),
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text='➖',
postbackData=
f'remove_from_cart-{cart_entity.item.id}')),
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text=MSG_REMOVE_ALL,
postbackData=
f'remove_all_from_cart-{cart_entity.item.id}')),
],
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=cart_entity.item.image_url,
forceRefresh=False))))
return BusinessMessagesCarouselCard(
cardContents=card_content,
cardWidth=BusinessMessagesCarouselCard.CardWidthValueValuesEnum.MEDIUM)
def get_drink_menu_carousel():
'''
Creates the drink menu carousel rich card.
Returns:
A :obj: A BusinessMessagesCarouselCard object with three cards.
'''
card_content = []
menu_items = Item.objects.filter(available=True, menu_type='D')
for item in menu_items:
card_content.append(
BusinessMessagesCardContent(
title=item.name,
description=f'${item.price}{item.currency}',
suggestions=get_menu_item_suggestions(item),
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=item.image_url, forceRefresh=False))))
return BusinessMessagesCarouselCard(
cardContents=card_content,
cardWidth=BusinessMessagesCarouselCard.CardWidthValueValuesEnum.MEDIUM)
def send_shopping_cart(conversation_id):
"""Sends a shopping cart to the user as a rich card carousel.
Args:
conversation_id (str): The unique id for this user and agent.
"""
credentials = service_account.Credentials.from_service_account_file(
SERVICE_ACCOUNT_LOCATION)
# Retrieve the inventory data
inventory = get_inventory_data()
# Pull the data from Google Datastore
client = datastore.Client(credentials=credentials)
key = client.key('ShoppingCart', conversation_id)
result = client.get(key)
shopping_cart_suggestions = [
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='See total price', postbackData='show-cart-price')),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Empty the cart', postbackData='empty-cart')),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='See the menu', postbackData=CMD_SHOW_PRODUCT_CATALOG)),
]
if len(result.items()) == 0:
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text='There are no items in your shopping cart.',
suggestions=shopping_cart_suggestions)
send_message(message_obj, conversation_id)
elif len(result.items()) == 1:
for product_name, quantity in result.items():
product_id = get_id_by_product_name(product_name)
fallback_text = ('You have one type of item in the shopping cart')
rich_card = BusinessMessagesRichCard(
standaloneCard=BusinessMessagesStandaloneCard(
cardContent=BusinessMessagesCardContent(
title=product_name,
description=f'{quantity} in cart.',
suggestions=[
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text='Remove one',
postbackData='{' +
f'"action":"{CMD_DEL_ITEM}","item_name":"{product_id}"'
+ '}'))
],
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.
MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=inventory['food'][product_id]
['image_url'],
forceRefresh=False)))))
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
richCard=rich_card,
suggestions=shopping_cart_suggestions,
fallback=fallback_text)
send_message(message_obj, conversation_id)
else:
cart_carousel_items = []
# Iterate through the cart and generate a carousel of items
for product_name, quantity in result.items():
product_id = get_id_by_product_name(product_name)
cart_carousel_items.append(
BusinessMessagesCardContent(
title=product_name,
description=f'{quantity} in cart.',
suggestions=[
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text='Remove one',
postbackData='{' +
f'"action":"{CMD_DEL_ITEM}","item_name":"{product_id}"'
+ '}'))
],
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.
MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=inventory['food'][product_id]['image_url'],
forceRefresh=False))))
rich_card = BusinessMessagesRichCard(
carouselCard=BusinessMessagesCarouselCard(
cardContents=cart_carousel_items,
cardWidth=BusinessMessagesCarouselCard.
CardWidthValueValuesEnum.MEDIUM))
fallback_text = ''
# Construct a fallback text for devices that do not support carousels
for card_content in rich_card.carouselCard.cardContents:
fallback_text += (
card_content.title + '\n\n' + card_content.description +
'\n\n' + card_content.media.contentInfo.fileUrl +
'\n---------------------------------------------\n\n')
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
richCard=rich_card,
suggestions=shopping_cart_suggestions,
fallback=fallback_text,
)
send_message(message_obj, conversation_id)