def checkout_success(request):
'''
User has succeeded to checkout and the Stripe callback sends the user to a
notice.
Args:
request (HttpRequest): The request object that django passes to the function
Returns:
Returns a template filled with contextual data to the request
'''
conversation_id = request.GET.get("conversation_id")
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text='''Your payment has been completed and your order is being
processed. We'll let you know that we've prepared your order and it
is ready for pickup near your scheduled time.''',
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_RESCHEDULE_ORDER, postbackData=CMD_RESCHEDULE_ORDER)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_CHECK_ORDER_STATUS,
postbackData=CMD_CHECK_ORDER_STATUS)),
])
send_message(message_obj, conversation_id)
return render(request, 'bopis/complete.html')
def send_pickup_date_request_message(conv):
'''
Sends a message to schedule pick up of the order.
Args:
conv (Conversation): The conversation object tied to the user
'''
current_cart = conv.shopping_cart
shopped_items = ShoppedItem.objects.filter(cart=current_cart)
if len(shopped_items) == 0:
send_shopping_cart_empty_message(conv)
return
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text='We currently support pickup today or tomorrow.',
)
send_message(message_obj, conv.id)
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text='When would you like to pick up your order?',
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Today', postbackData=f'{CMD_SET_PICKUP_DATE}-today')),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Tomorrow',
postbackData=f'{CMD_SET_PICKUP_DATE}-tomorrow')),
])
send_message(message_obj, conv.id)
def send_product_catalog(conversation_id):
"""Sends the product catalog to the conversation_id.
Args:
conversation_id (str): The unique id for this user and agent.
"""
rich_card = BusinessMessagesRichCard(carouselCard=get_menu_carousel())
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,
fallback=fallback_text,
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='See my cart', postbackData=CMD_SHOW_CART)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='See the menu', postbackData=CMD_SHOW_PRODUCT_CATALOG)),
])
send_message(message_obj, conversation_id)
def send_pickup_time_request_message(conv, message):
'''
Requests more detail from the user about when they want to pick up their
order.
Args:
conv (Conversation): The conversation object tied to the user
message (String): Message regarding when the user will pick up
'''
day = message.split('-')[-1]
current_cart = conv.shopping_cart
suggestion_array = []
if day == 'today':
suggestion_array.append(
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='As soon as possible',
postbackData=f'{CMD_SET_PICKUP_TIME}-now')))
current_cart.pickup_date = timezone.now().date()
local_timezone = pytz.timezone(settings.TIME_ZONE)
local_datetime = timezone.now().astimezone(local_timezone)
i = local_datetime.hour + 1
while i < 20:
time_hour, time_meridiem = determine_time_hour_and_meridiem(i)
suggestion_array.append(
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text=f'{time_hour}:00 {time_meridiem}',
postbackData=
f'{CMD_SET_PICKUP_TIME}-{i}:00-{time_meridiem}')))
i = i + 1
if day == 'tomorrow':
current_cart.pickup_date = timezone.now().date() + timezone.timedelta(
days=1)
i = 8
time_hour = 8
while i < 20:
time_hour, time_meridiem = determine_time_hour_and_meridiem(i)
suggestion_array.append(
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text=f'{time_hour}:00 {time_meridiem}',
postbackData=
f'{CMD_SET_PICKUP_TIME}-{i}:00-{time_meridiem}')))
i = i + 1
current_cart.save()
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=f'What time would you like to pick up the order {day}?',
suggestions=suggestion_array)
send_message(message_obj, conv.id)
def get_shopping_suggestions():
"""Creates a list of shopping cart suggestions.
Returns:
A :list: A list of sample BusinessMessagesSuggestions.
"""
return [
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='See my cart', postbackData='show_cart')),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='See the menu', postbackData=CMD_SHOW_PRODUCT_CATALOG)),
]
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 send_message_with_business_hours(conversation_id):
"""Sends a message containing hours of operation for the business.
Args:
conversation_id (str): The unique id for this user and agent.
"""
message = """Thanks for contacting us! The hours for the store are:\n
MON 8am - 8pm\n
TUE 8am - 8pm\n
WED 8am - 8pm\n
THU 8am - 8pm\n
FRI 8am - 8pm\n
SAT 8am - 8pm\n
SUN 8am - 8pm
"""
message_obj = BusinessMessagesMessage(messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=message)
send_message(message_obj, conversation_id)
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text='Let us know how else we can help you:',
fallback='Please let us know how else we can help you.',
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Can I purchase online?',
postbackData='online-shopping-inquiry')),
])
send_message(message_obj, conversation_id)
def get_sample_suggestions():
'''
Creates a list of sample suggestions that includes a
suggested reply and two actions.
Returns:
A :list: A list of sample BusinessMessagesSuggestions.
'''
return [
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text='Sample Chip',
postbackData='sample_chip')
),
BusinessMessagesSuggestion(
action=BusinessMessagesSuggestedAction(
text='URL Action',
postbackData='url_action',
openUrlAction=BusinessMessagesOpenUrlAction(
url='https://www.google.com'))
),
BusinessMessagesSuggestion(
action=BusinessMessagesSuggestedAction(
text='Dial Action',
postbackData='dial_action',
dialAction=BusinessMessagesDialAction(
phoneNumber='+12223334444'))
),
]
def get_cart_suggestions():
'''
Creates a list of sample suggestions that includes a
suggested reply and two actions.
Returns:
A :list: A list of sample BusinessMessagesSuggestions.
'''
return [
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_FOOD_MENU, postbackData=CMD_FOOD_MENU)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_DRINKS_MENU, postbackData=CMD_DRINK_MENU)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_PURCHASE_CART, postbackData=CMD_PURCHASE_CART)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_ABANDON_CART, postbackData=CMD_ABANDON_CART)),
]
def send_get_pickup_detail_confirmation_message(conv, message):
'''
Parses the pickup details and sends a confirmation message to the user.
Args:
conv (Conversation): The conversation object tied to the user
message (String): Message from user about their requested pick up time.
'''
current_cart = conv.shopping_cart
requested_pickup_time = message.split('-')
requested_pickup_hour = requested_pickup_time[1].split(':')[0]
requested_pickup_time_meridium = requested_pickup_time[2]
# Convert current_cart.pickup_datetime to readable time.
pickup_datetime = timezone.datetime(current_cart.pickup_date.year,
current_cart.pickup_date.month,
current_cart.pickup_date.day,
int(requested_pickup_hour))
current_cart.pickup_datetime = pickup_datetime
current_cart.save()
if timezone.now().day == current_cart.pickup_date.day:
pickup_date_str = 'today'
else:
pickup_date_str = 'tomorrow'
if int(requested_pickup_hour) > 12:
requested_pickup_hour = int(requested_pickup_hour) - 12
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=f'''Thanks for providing pickup time and date details. Please
confirm that you'll be picking up this order {pickup_date_str} at {requested_pickup_hour} {requested_pickup_time_meridium}. Do I have this
right?''',
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Yes', postbackData=CMD_CONF_PICKUP_DETAILS)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='No', postbackData=CMD_RESET_PICKUP_DETAILS)),
])
send_message(message_obj, conv.id)
def send_shopping_cart_empty_message(conv):
'''
Inform the user that their shopping cart is empty.
Args:
conv (Conversation): The conversation object tied to the user
'''
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=MSG_EMPTY_CART,
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_FOOD_MENU, postbackData=CMD_FOOD_MENU)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_DRINKS_MENU, postbackData=CMD_DRINK_MENU)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_PENDING_ORDERS,
postbackData=CMD_SHOW_PENDING_PICKUP)),
])
send_message(message_obj, conv.id)
def send_abandoned_cart_message(conv):
'''
Sends the message received from the user back to the user.
Args:
message (str): The message text received from the user.
conversation_id (str): The unique id for this user and agent.
'''
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=MSG_CART_NOW_EMPTY,
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_FOOD_MENU, postbackData=CMD_FOOD_MENU)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_CHECK_PENDING_ORDERS,
postbackData=CMD_SHOW_PENDING_PICKUP)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_PAST_PURCHASES,
postbackData=CMD_SHOW_PURCHASES)),
])
send_message(message_obj, conv.id)
def send_item_added_to_cart(conv, item):
'''
Inform the user that they've added an item to the cart.
Args:
conv (Conversation): The conversation object tied to the user
item (Item): The item the user wants to add to their cart
'''
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=f"You've added an item to your cart: {item.name}",
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SEE_CART, postbackData=CMD_SHOW_CART)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SEE_CART_BREAKDOWN, postbackData=CMD_CART_BREAKDOWN)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_FOOD_MENU, postbackData=CMD_FOOD_MENU)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_DRINKS_MENU, postbackData=CMD_DRINK_MENU)),
])
send_message(message_obj, conv.id)
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 send_cart_breakdown_message(conv):
'''
This function sends a textual representation
'''
cart = conv.shopping_cart
shopped_items = ShoppedItem.objects.filter(cart=cart)
if len(shopped_items) == 0:
cart_breakdown = MSG_CART_NOW_EMPTY
else:
cart_breakdown = "Here's your cart breakdown:\n\n"
total_price = 0
for shopped_item in shopped_items:
total_price = total_price + shopped_item.item.price * shopped_item.quantity
cart_breakdown = cart_breakdown + f'''{shopped_item.item.name}\n
Quantity: {shopped_item.quantity}\n
Price: ${shopped_item.item.price * shopped_item.quantity}\n\n'''
cart_breakdown = cart_breakdown + f'-----\nSubtotal Price: ${total_price}'
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=cart_breakdown,
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_PURCHASE_CART, postbackData=CMD_PURCHASE_CART)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_CHECK_PENDING_ORDERS,
postbackData=CMD_SHOW_PENDING_PICKUP)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_ABANDON_CART, postbackData=CMD_ABANDON_CART)),
])
send_message(message_obj, conv.id)
def get_menu_item_suggestions(item):
'''
Creates a list of sample suggestions that includes a
suggested reply and two actions.
Returns:
A :list: A list of sample BusinessMessagesSuggestions.
'''
return [
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_ADD_TO_CART,
postbackData=f'{CMD_ADD_TO_CART}-{item.id}')),
BusinessMessagesSuggestion(action=BusinessMessagesSuggestedAction(
text=MSG_PURCHASE,
postbackData=MSG_PURCHASE,
openUrlAction=BusinessMessagesOpenUrlAction(
url=f'{DOMAIN}/bopis/purchase/{item.id}'))),
]
def send_online_shopping_info_message(conversation_id):
'''
Sends a rich card with online shopping info to the user.
Args:
conversation_id (str): The unique id for this user and agent.
'''
fallback_text = ('Online shopping will be available soon!')
rich_card = BusinessMessagesRichCard(
standaloneCard=
BusinessMessagesStandaloneCard(cardContent=BusinessMessagesCardContent(
title='Online shopping info!',
description=
'Thanks for your business, we are located in SF near the Golden Gate Bridge. Online shopping is not yet available, please check back with us in a few days.',
suggestions=[],
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=SAMPLE_IMAGES[4], forceRefresh=False)))))
message_obj = BusinessMessagesMessage(messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
richCard=rich_card,
fallback=fallback_text)
send_message(message_obj, conversation_id)
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text='Let us know how else we can help you:',
fallback='Please let us know how else we can help you.',
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Business hours', postbackData='business-hours-inquiry')),
])
send_message(message_obj, conversation_id)
def checkout_failure(request):
'''
User has failed to checkout and the Stripe callback sends the user to a
notice.
Args:
request (HttpRequest): The request object that django passes to the function
Returns:
Returns a template filled with contextual data to the request
'''
conversation_id = request.GET.get("conversation_id")
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=MSG_COULD_NOT_PROCESS,
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_TRY_AGAIN, postbackData=CMD_RESET_PICKUP_DETAILS)),
])
send_message(message_obj, conversation_id)
return render(request, 'bopis/complete.html')
def payment_success(request, conversation_id):
"""Sends a notification to the user prompting them back into the conversation.
Args:
request (HttpRequest): Incoming Django request object
conversation_id (str): The unique id for this user and agent.
Returns:
Obj (HttpResponse): Returns an HTTPResponse to the browser
"""
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Check on order', postbackData='check-order')),
],
text='Awesome it looks like we\'ve received you\'re payment.')
send_message(message_obj, conversation_id)
return render(request, 'bopis/success.html')
def send_proceed_to_payment_message(conv):
'''
Send an openUrlAction to open the webpage that sends the user to Stripe for
payment.
Args:
conv (Conversation): The conversation object tied to the user
'''
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text='''Great! Thanks for confirming. Proceed to checkout and we'll let
you know when your order is ready for pickup!''',
suggestions=[
BusinessMessagesSuggestion(action=BusinessMessagesSuggestedAction(
text=MSG_PURCHASE,
postbackData=MSG_PURCHASE,
openUrlAction=BusinessMessagesOpenUrlAction(
url=f'{DOMAIN}/bopis/checkout/{conv.id}'))),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text=MSG_ABANDON_CART, postbackData=CMD_ABANDON_CART)),
])
send_message(message_obj, conv.id)
def send_shopping_cart(conv):
'''
Send the user their shopping cart.
'''
cart_items = ShoppedItem.objects.filter(cart=conv.shopping_cart)
if not conv.shopping_cart or len(cart_items) == 0:
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=MSG_EMPTY_CART,
suggestions=[
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_FOOD_MENU, postbackData=CMD_FOOD_MENU)),
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text=MSG_SHOW_DRINKS_MENU,
postbackData=CMD_DRINK_MENU)),
BusinessMessagesSuggestion(
reply=BusinessMessagesSuggestedReply(
text=MSG_PENDING_ORDERS,
postbackData=CMD_SHOW_PENDING_PICKUP)),
])
send_message(message_obj, conv.id)
elif len(cart_items) == 1:
fallback_text = (
f'Your shopping cart contains a {cart_items[0].item.name}')
rich_card = BusinessMessagesRichCard(
standaloneCard=BusinessMessagesStandaloneCard(
cardContent=BusinessMessagesCardContent(
title=cart_items[0].item.name,
description=f'Quantity: {cart_items[0].quantity}',
suggestions=[],
media=BusinessMessagesMedia(
height=BusinessMessagesMedia.HeightValueValuesEnum.
MEDIUM,
contentInfo=BusinessMessagesContentInfo(
fileUrl=cart_items[0].item.image_url,
forceRefresh=False)))))
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
richCard=rich_card,
fallback=fallback_text)
send_message(message_obj, conv.id)
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=f'''The total value of your shopping cart is
${cart_items[0].item.price * cart_items[0].quantity}.''',
suggestions=get_cart_suggestions())
send_message(message_obj, conv.id)
else:
rich_card = BusinessMessagesRichCard(
carouselCard=get_cart_carousel(cart_items))
# Construct a fallback text for devices that do not support carousels.
fallback_text = ''
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,
fallback=fallback_text)
send_message(message_obj, conv.id)
total_price = 0
for cart_item in cart_items:
total_price = total_price + cart_item.item.price * cart_item.quantity
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=f'The total value of your shopping cart is ${total_price}.',
suggestions=get_cart_suggestions())
send_message(message_obj, conv.id)
def update_shopping_cart(conversation_id, message):
"""Updates the shopping cart stored in Google Datastore.
Args:
conversation_id (str): The unique id for this user and agent.
message (str): The message containing whether to add or delete an item.
"""
credentials = service_account.Credentials.from_service_account_file(
SERVICE_ACCOUNT_LOCATION)
inventory = get_inventory_data()
cart_request = json.loads(message)
cart_cmd = cart_request["action"]
cart_item = cart_request["item_name"]
item_name = inventory['food'][int(cart_item)]['name']
client = datastore.Client(credentials=credentials)
key = client.key('ShoppingCart', conversation_id)
entity = datastore.Entity(key=key)
result = client.get(key)
if result is None:
if cart_cmd == CMD_ADD_ITEM:
entity.update({item_name: 1})
elif cart_cmd == CMD_DEL_ITEM:
# The user is trying to delete an item from an empty cart. Pass and skip
pass
else:
if cart_cmd == CMD_ADD_ITEM:
if result.get(item_name) is None:
result[item_name] = 1
else:
result[item_name] = result[item_name] + 1
elif cart_cmd == CMD_DEL_ITEM:
if result.get(item_name) is None:
# The user is trying to remove an item that's no in the shopping cart.
# Pass and skip
pass
elif result[item_name] - 1 > 0:
result[item_name] = result[item_name] - 1
else:
del result[item_name]
entity.update(result)
client.put(entity)
if cart_cmd == CMD_ADD_ITEM:
message = 'Great! You\'ve added an item to the cart.'
else:
message = 'You\'ve removed an item from the cart.'
message_obj = BusinessMessagesMessage(
messageId=str(uuid.uuid4().int),
representative=BOT_REPRESENTATIVE,
text=message,
suggestions=[
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='Review shopping cart', postbackData=CMD_SHOW_CART)),
BusinessMessagesSuggestion(reply=BusinessMessagesSuggestedReply(
text='See menu again', postbackData=CMD_SHOW_PRODUCT_CATALOG)),
])
send_message(message_obj, conversation_id)
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)