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# SPDX-License-Identifier: AGPL-3.0-or-later
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# pylint: disable=missing-module-docstring
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from __future__ import annotations
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from functools import reduce
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from operator import mul
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import babel
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import babel.numbers
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from flask_babel import gettext
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from searx.extended_types import sxng_request
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from searx.result_types import Answer
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from searx.result_types.answer import BaseAnswer
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from . import Answerer, AnswererInfo
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kw2func = [
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("min", min),
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("max", max),
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("avg", lambda args: sum(args) / len(args)),
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("sum", sum),
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("prod", lambda args: reduce(mul, args, 1)),
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]
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class SXNGAnswerer(Answerer):
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"""Statistics functions"""
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keywords = [kw for kw, _ in kw2func]
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def info(self):
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return AnswererInfo(
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name=gettext(self.__doc__),
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description=gettext("Compute {func} of the arguments".format(func='/'.join(self.keywords))),
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keywords=self.keywords,
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examples=["avg 123 548 2.04 24.2"],
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)
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def answer(self, query: str) -> list[BaseAnswer]:
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results = []
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parts = query.split()
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if len(parts) < 2:
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return results
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ui_locale = babel.Locale.parse(sxng_request.preferences.get_value('locale'), sep='-')
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try:
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args = [babel.numbers.parse_decimal(num, ui_locale, numbering_system="latn") for num in parts[1:]]
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except: # pylint: disable=bare-except
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# seems one of the args is not a float type, can't be converted to float
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return results
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for k, func in kw2func:
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if k == parts[0]:
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res = func(args)
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res = babel.numbers.format_decimal(res, locale=ui_locale)
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f_str = ', '.join(babel.numbers.format_decimal(arg, locale=ui_locale) for arg in args)
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results.append(Answer(answer=f"[{ui_locale}] {k}({f_str}) = {res} "))
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break
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return results
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