143 lines
6.3 KiB
Python
143 lines
6.3 KiB
Python
from django.core.cache import caches
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from django.db.models import Q
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from django.db.models.functions import Lower
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from cookbook.models import Automation
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class AutomationEngine:
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request = None
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use_cache = None
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food_aliases = None
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keyword_aliases = None
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unit_aliases = None
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never_unit = None
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transpose_words = None
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description_replace = None
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instruction_replace = None
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def __init__(self, request, use_cache=True):
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self.request = request
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self.use_cache = use_cache
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def apply_keyword_automation(self, keyword):
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keyword = keyword.strip()
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if self.use_cache and self.keyword_aliases is None:
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self.keyword_aliases = {}
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KEYWORD_CACHE_KEY = f'automation_keyword_alias_{self.request.space.pk}'
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if c := caches['default'].get(KEYWORD_CACHE_KEY, None):
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self.keyword_aliases = c
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caches['default'].touch(KEYWORD_CACHE_KEY, 30)
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else:
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for a in Automation.objects.filter(space=self.request.space, disabled=False, type=Automation.KEYWORD_ALIAS).only('param_1', 'param_2').order_by('order').all():
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self.keyword_aliases[a.param_1.lower()] = a.param_2
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caches['default'].set(KEYWORD_CACHE_KEY, self.keyword_aliases, 30)
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else:
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self.keyword_aliases = {}
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if self.keyword_aliases:
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try:
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keyword = self.keyword_aliases[keyword.lower()]
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except KeyError:
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pass
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else:
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if automation := Automation.objects.filter(space=self.request.space, type=Automation.KEYWORD_ALIAS, param_1__iexact=keyword, disabled=False).order_by('order').first():
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return automation.param_2
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return keyword
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def apply_unit_automation(self, unit):
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unit = unit.strip()
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if self.use_cache and self.unit_aliases is None:
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self.unit_aliases = {}
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UNIT_CACHE_KEY = f'automation_unit_alias_{self.request.space.pk}'
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if c := caches['default'].get(UNIT_CACHE_KEY, None):
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self.unit_aliases = c
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caches['default'].touch(UNIT_CACHE_KEY, 30)
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else:
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for a in Automation.objects.filter(space=self.request.space, disabled=False, type=Automation.UNIT_ALIAS).only('param_1', 'param_2').order_by('order').all():
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self.unit_aliases[a.param_1.lower()] = a.param_2
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caches['default'].set(UNIT_CACHE_KEY, self.unit_aliases, 30)
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else:
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self.unit_aliases = {}
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if self.unit_aliases:
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try:
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unit = self.unit_aliases[unit.lower()]
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except KeyError:
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pass
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else:
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if automation := Automation.objects.filter(space=self.request.space, type=Automation.UNIT_ALIAS, param_1__iexact=unit, disabled=False).order_by('order').first():
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return automation.param_2
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return unit
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def apply_food_automation(self, food):
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food = food.strip()
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if self.use_cache and self.food_aliases is None:
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self.food_aliases = {}
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FOOD_CACHE_KEY = f'automation_food_alias_{self.request.space.pk}'
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if c := caches['default'].get(FOOD_CACHE_KEY, None):
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self.food_aliases = c
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caches['default'].touch(FOOD_CACHE_KEY, 30)
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else:
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for a in Automation.objects.filter(space=self.request.space, disabled=False, type=Automation.FOOD_ALIAS).only('param_1', 'param_2').order_by('order').all():
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self.food_aliases[a.param_1.lower()] = a.param_2
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caches['default'].set(FOOD_CACHE_KEY, self.food_aliases, 30)
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else:
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self.food_aliases = {}
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if self.food_aliases:
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try:
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return self.food_aliases[food.lower()]
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except KeyError:
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return food
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else:
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if automation := Automation.objects.filter(space=self.request.space, type=Automation.FOOD_ALIAS, param_1__iexact=food, disabled=False).order_by('order').first():
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return automation.param_2
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return food
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def apply_never_unit_automation(self, tokens):
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"""
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Moves a string that should never be treated as a unit to next token and optionally replaced with default unit
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e.g. NEVER_UNIT: param1: egg, param2: None would modify ['1', 'egg', 'white'] to ['1', '', 'egg', 'white']
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or NEVER_UNIT: param1: egg, param2: pcs would modify ['1', 'egg', 'yolk'] to ['1', 'pcs', 'egg', 'yolk']
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:param1 string: string that should never be considered a unit, will be moved to token[2]
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:param2 (optional) unit as string: will insert unit string into token[1]
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:return: unit as string (possibly changed by automation)
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"""
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if self.use_cache and self.never_unit is None:
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self.never_unit = {}
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NEVER_UNIT_CACHE_KEY = f'automation_never_unit_{self.request.space.pk}'
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if c := caches['default'].get(NEVER_UNIT_CACHE_KEY, None):
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self.never_unit = c
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caches['default'].touch(NEVER_UNIT_CACHE_KEY, 30)
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else:
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for a in Automation.objects.filter(space=self.request.space, disabled=False, type=Automation.NEVER_UNIT).only('param_1', 'param_2').order_by('order').all():
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self.never_unit[a.param_1.lower()] = a.param_2
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caches['default'].set(NEVER_UNIT_CACHE_KEY, self.never_unit, 30)
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else:
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self.never_unit = {}
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new_unit = None
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alt_unit = self.apply_unit_automation(tokens[1])
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never_unit = False
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if self.never_unit:
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try:
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new_unit = self.never_unit[tokens[1].lower()]
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never_unit = True
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except KeyError:
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return tokens
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else:
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if a := Automation.objects.annotate(param_1_lower=Lower('param_1')).filter(space=self.request.space, type=Automation.NEVER_UNIT, param_1_lower__in=[
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tokens[1].lower(), alt_unit.lower()], disabled=False).order_by('order').first():
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new_unit = a.param_2
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never_unit = True
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if never_unit:
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tokens.insert(1, new_unit)
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return tokens
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def apply_transpose_automation(self, string):
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return string
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def apply_regex_replace_automation(self, string):
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return string
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