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# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
from botbuilder.core import TurnContext
from botframework.connector import Channels
class Channel:
"""
Methods for determining channel-specific functionality.
"""
@staticmethod
def supports_suggested_actions(channel_id: str, button_cnt: int = 100) -> bool:
"""Determine if a number of Suggested Actions are supported by a Channel.
Args:
channel_id (str): The Channel to check the if Suggested Actions are supported in.
button_cnt (int, optional): Defaults to 100. The number of Suggested Actions to check for the Channel.
Returns:
bool: True if the Channel supports the button_cnt total Suggested Actions, False if the Channel does not
support that number of Suggested Actions.
"""
max_actions = {
# https://developers.facebook.com/docs/messenger-platform/send-messages/quick-replies
Channels.facebook: 10,
Channels.skype: 10,
# https://developers.line.biz/en/reference/messaging-api/#items-object
Channels.line: 13,
# https://dev.kik.com/#/docs/messaging#text-response-object
Channels.kik: 20,
Channels.telegram: 100,
Channels.emulator: 100,
Channels.direct_line: 100,
Channels.webchat: 100,
}
return (
button_cnt <= max_actions[channel_id]
if channel_id in max_actions
else False
)
@staticmethod
def supports_card_actions(channel_id: str, button_cnt: int = 100) -> bool:
"""Determine if a number of Card Actions are supported by a Channel.
Args:
channel_id (str): The Channel to check if the Card Actions are supported in.
button_cnt (int, optional): Defaults to 100. The number of Card Actions to check for the Channel.
Returns:
bool: True if the Channel supports the button_cnt total Card Actions, False if the Channel does not support
that number of Card Actions.
"""
max_actions = {
Channels.facebook: 3,
Channels.skype: 3,
Channels.ms_teams: 3,
Channels.line: 99,
Channels.slack: 100,
Channels.telegram: 100,
Channels.emulator: 100,
Channels.direct_line: 100,
Channels.webchat: 100,
}
return (
button_cnt <= max_actions[channel_id]
if channel_id in max_actions
else False
)
@staticmethod
def has_message_feed(_: str) -> bool:
"""Determine if a Channel has a Message Feed.
Args:
channel_id (str): The Channel to check for Message Feed.
Returns:
bool: True if the Channel has a Message Feed, False if it does not.
"""
return True
@staticmethod
def max_action_title_length( # pylint: disable=unused-argument
channel_id: str,
) -> int:
"""Maximum length allowed for Action Titles.
Args:
channel_id (str): The Channel to determine Maximum Action Title Length.
Returns:
int: The total number of characters allowed for an Action Title on a specific Channel.
"""
return 20
@staticmethod
def get_channel_id(turn_context: TurnContext) -> str:
"""Get the Channel Id from the current Activity on the Turn Context.
Args:
turn_context (TurnContext): The Turn Context to retrieve the Activity's Channel Id from.
Returns:
str: The Channel Id from the Turn Context's Activity.
"""
if turn_context.activity.channel_id is None:
return ""
return turn_context.activity.channel_id
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