74 lines
1.9 KiB
Python
74 lines
1.9 KiB
Python
import sys
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import attr
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import logging
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import aenum
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log = logging.getLogger("fbchat")
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# Enable kw_only if the python version supports it
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kw_only = sys.version_info[:2] > (3, 5)
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#: Default attrs settings for classes
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attrs_default = attr.s(slots=True, kw_only=kw_only)
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class Enum(aenum.Enum):
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"""Used internally by ``fbchat`` to support enumerations"""
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def __repr__(self):
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# For documentation:
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return "{}.{}".format(type(self).__name__, self.name)
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@classmethod
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def _extend_if_invalid(cls, value):
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try:
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return cls(value)
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except ValueError:
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log.warning(
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"Failed parsing {.__name__}({!r}). Extending enum.".format(cls, value)
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)
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aenum.extend_enum(cls, "UNKNOWN_{}".format(value).upper(), value)
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return cls(value)
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@attr.s(frozen=True, slots=True, kw_only=kw_only)
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class Image:
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#: URL to the image
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url = attr.ib(type=str)
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#: Width of the image
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width = attr.ib(None, type=int)
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#: Height of the image
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height = attr.ib(None, type=int)
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@classmethod
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def _from_uri(cls, data):
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return cls(
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url=data["uri"],
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width=int(data["width"]) if data.get("width") else None,
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height=int(data["height"]) if data.get("height") else None,
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)
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@classmethod
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def _from_url(cls, data):
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return cls(
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url=data["url"],
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width=int(data["width"]) if data.get("width") else None,
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height=int(data["height"]) if data.get("height") else None,
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)
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@classmethod
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def _from_uri_or_none(cls, data):
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if data is None:
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return None
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if data.get("uri") is None:
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return None
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return cls._from_uri(data)
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@classmethod
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def _from_url_or_none(cls, data):
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if data is None:
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return None
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if data.get("url") is None:
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return None
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return cls._from_url(data)
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