67 lines
2.4 KiB
Python
67 lines
2.4 KiB
Python
# Copyright 2020 Mycroft AI Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""Intent service for Mycroft's fallback system."""
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from collections import namedtuple
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from .base import IntentMatch
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FallbackRange = namedtuple('FallbackRange', ['start', 'stop'])
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class FallbackService:
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"""Intent Service handling fallback skills."""
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def __init__(self, bus):
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self.bus = bus
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def _fallback_range(self, utterances, lang, message, fb_range):
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"""Send fallback request for a specified priority range.
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Args:
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utterances (list): List of tuples,
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utterances and normalized version
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lang (str): Langauge code
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message: Message for session context
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fb_range (FallbackRange): fallback order start and stop.
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Returns:
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IntentMatch or None
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"""
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msg = message.reply(
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'mycroft.skills.fallback',
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data={'utterance': utterances[0][0],
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'lang': lang,
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'fallback_range': (fb_range.start, fb_range.stop)}
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)
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response = self.bus.wait_for_response(msg, timeout=10)
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if response and response.data['handled']:
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ret = IntentMatch('Fallback', None, {}, None)
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else:
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ret = None
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return ret
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def high_prio(self, utterances, lang, message):
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"""Pre-padatious fallbacks."""
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return self._fallback_range(utterances, lang, message,
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FallbackRange(0, 5))
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def medium_prio(self, utterances, lang, message):
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"""General fallbacks."""
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return self._fallback_range(utterances, lang, message,
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FallbackRange(5, 90))
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def low_prio(self, utterances, lang, message):
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"""Low prio fallbacks with general matching such as chat-bot."""
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return self._fallback_range(utterances, lang, message,
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FallbackRange(90, 101))
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