started working on restoral tests

mvcm/restoral.py

 import numpy as np
+import xarray as xr
 
+from typing import Dict
+from attrs import define, field, validators, Factory
 from numpy.lib.stride_tricks import sliding_window_view
 
+import logging
+
+# import importlib
+
 _bad_data = -999.0
 
+logger = logging.getLogger('__name__')
+
+# tracking down the list of restoral tests that need to be implemented
+# and the function that gets called in the C code
+# Also list the set of conditions to run the restoral test
+#
+# Night, snow/ice temperature inversion tests
+# - NightSnow_Inv_check()
+#   - pxin.night
+#   - pxin.snow || pxin.ice
+#
+# Water
+# - chk_spatial_var()
+#   - pxin.water
+#   - pxin.uniform
+#   - !pxin.ice
+#   - pxout.intermediate_conf <= 0.99
+#   - pxout.intermediate_conf >= 0.05
+#
+# Water Day
+# - chck_sunglint()
+#   - pxin.day
+#   - pxin.water
+#   - pxin.uniform
+#   - pxin.sunglint
+#   - pxout.intermediate_conf <= 0.95
+#
+# Daytime water NDVI test and turbid water test for shallow water
+# - chk_shallow_water()
+#   - pxin.day
+#   - pxin.water
+#   - !pxin.ice
+#
+# Daytime land
+# - chk_land()
+#   - pxin.day
+#   - pxin.land
+#   - !pxin.snow
+#   - !pxin.ice
+#   - pxout.intermediate_conf <= 0.95
+
+#
+# Daytime coast(land)
+# - chk_land()
+#   - pxin.day
+#   - pxin.land
+#   - !pxin.snow
+#   - !pxin.ice
+#   - pxin.coast
+#
+# Nighttime land test
+# - chck_land_night()
+#   - pxin.night
+#   - pxin.land
+#   - !pxin.snow
+#   - !pxin.ice
+#   - pxout.intermediate_conf <= 0.95
+#
+
+
+@define(kw_only=True, slots=True)
+class Restoral(object):
+    """
+    """
+    data: xr.Dataset = field(validator=[validators.instance_of(xr.Dataset), ])
+    thresholds: str = field(validator=[validators.instance_of(Dict), ])
+
 
 def spatial_var(rad, threshold):