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30 lines
921 B
Python
30 lines
921 B
Python
from sqlalchemy import Column, Integer, Boolean, BigInteger
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from wrolpi import dates
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from wrolpi.common import Base, ModelHelper
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from wrolpi.media_path import MediaPathType
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RPI4_BYTES_PER_SECOND = 3963
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def seconds_to_import(size: int) -> int:
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"""Attempt to predict how long it will take an RPi4 to import a given PBF file."""
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return max(int(size // RPI4_BYTES_PER_SECOND), 0)
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class MapFile(Base, ModelHelper):
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__tablename__ = 'map_file'
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id = Column(Integer, primary_key=True)
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path = Column(MediaPathType, unique=True, nullable=False)
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imported = Column(Boolean, default=False, nullable=False)
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size = Column(BigInteger)
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def __json__(self):
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return {
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'id': self.id,
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'path': self.path,
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'imported': self.imported,
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'size': self.size,
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'time_to_import': dates.seconds_to_timestamp(seconds_to_import(self.size)),
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}
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