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https://github.com/searxng/searxng.git
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8f8343dc0d
Continuation of #5147 .. typification of the engine processors. BTW: - removed obsolete engine property https_support - fixed & improved currency_convert - engine instances can now implement a engine.setup method [#5147] https://github.com/searxng/searxng/pull/5147 Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Simple implementation to store currencies data in a SQL database."""
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__all__ = ["CurrenciesDB"]
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import typing as t
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import json
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import pathlib
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from .core import get_cache, log
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@t.final
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class CurrenciesDB:
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# pylint: disable=missing-class-docstring
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ctx_names: str = "data_currencies_names"
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ctx_iso4217: str = "data_currencies_iso4217"
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json_file: pathlib.Path = pathlib.Path(__file__).parent / "currencies.json"
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def __init__(self):
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self.cache = get_cache()
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def init(self):
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if self.cache.properties("currencies loaded") != "OK":
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# To avoid parallel initializations, the property is set first
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self.cache.properties.set("currencies loaded", "OK")
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self.load()
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# F I X M E:
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# do we need a maintenance .. rember: database is stored
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# in /tmp and will be rebuild during the reboot anyway
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def load(self):
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log.debug("init searx.data.CURRENCIES")
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with open(self.json_file, encoding="utf-8") as f:
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data_dict: dict[str, dict[str, str]] = json.load(f)
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for key, value in data_dict["names"].items():
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self.cache.set(key=key, value=value, ctx=self.ctx_names, expire=None)
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for key, value in data_dict["iso4217"].items():
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self.cache.set(key=key, value=value, ctx=self.ctx_iso4217, expire=None)
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def name_to_iso4217(self, name: str) -> str | None:
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self.init()
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ret_val: str | list[str] | None = self.cache.get(key=name, default=None, ctx=self.ctx_names)
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if isinstance(ret_val, list):
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# if more alternatives, use the last in the list
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ret_val = ret_val[-1]
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return ret_val
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def iso4217_to_name(self, iso4217: str, language: str) -> str | None:
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self.init()
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iso4217_languages: dict[str, str] = self.cache.get(key=iso4217, default={}, ctx=self.ctx_iso4217)
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return iso4217_languages.get(language)
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def is_iso4217(self, iso4217: str) -> bool:
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item = self.cache.get(key=iso4217, default={}, ctx=self.ctx_iso4217)
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return bool(item)
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