"""
Module for getting reference images stored locally
"""
import logging
from pathlib import Path
from typing import Type
from astropy.io import fits
from mirar.data import Image
from mirar.database.base_model import BaseDB
from mirar.paths import LATEST_WEIGHT_SAVE_KEY
from mirar.references.base_reference_generator import BaseReferenceGenerator
logger = logging.getLogger(__name__)
[docs]
class RefFromPath(BaseReferenceGenerator):
"""
Get locally saved ref from path
"""
abbreviation = "local"
def __init__(
self,
path: str,
filter_name: str,
write_image: bool = False,
write_to_db: bool = False,
db_table: Type[BaseDB] = None,
duplicate_protocol: str = "replace",
q3c_bool: bool = True,
):
super().__init__(
filter_name,
write_to_db=write_to_db,
db_table=db_table,
duplicate_protocol=duplicate_protocol,
q3c_bool=q3c_bool,
write_image=write_image,
)
self.path = path
def _get_reference(self, image: Image) -> (fits.PrimaryHDU, fits.PrimaryHDU):
with fits.open(self.path) as hdul:
ref_hdu = hdul[0].copy()
weight_path = Path(
hdul[0].header[LATEST_WEIGHT_SAVE_KEY] # pylint: disable=no-member
)
ref_weight_hdu = None
if weight_path.exists():
with fits.open(weight_path) as hdul:
ref_weight_hdu = hdul[0].copy()
return ref_hdu, ref_weight_hdu