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"""
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <https://www.gnu.org/licenses/>.
"""
__author__ = "Théo de la Hogue"
__credits__ = []
__copyright__ = "Copyright 2023, Ecole Nationale de l'Aviation Civile (ENAC)"
__license__ = "GPLv3"
import math
from argaze import DataFeatures
class PupilDiameter(float, DataFeatures.TimestampedObject):
"""Define pupil diameter as a single float value.
Parameters:
value: pupil diameter value.
"""
def __new__(cls, value: float = math.nan, **kwargs):
return float.__new__(cls, value)
def __init__(self, value: float = math.nan, **kwargs):
super().__init__(**kwargs)
@property
def value(self):
"""Get pupil diameter value."""
return float(self)
class TimeStampedPupilDiameters(DataFeatures.TimestampedObjectsList):
"""Handle timestamped pupil diameters into a list."""
def __init__(self, pupil_diameters: list = []):
DataFeatures.TimestampedObjectsList.__init__(self, PupilDiameter, pupil_diameters)
class PupilDiameterAnalyzer(DataFeatures.PipelineStepObject):
"""Abstract class to define what should provide a pupil diameter analyser."""
@DataFeatures.PipelineStepMethod
def analyze(self, pupil_diameter: PupilDiameter) -> any:
"""Analyze pupil diameter from successive timestamped pupil diameters."""
raise NotImplementedError('analyze() method not implemented')
def browse(self, ts_pupil_diameters: TimeStampedPupilDiameters) -> list:
"""Analyze by browsing timestamped pupil diameters.
Parameters:
ts_pupil_diameters: list of timestamped pupil diameters.
Returns:
ts_analysis: list of (timestamp, analysis).
"""
assert(type(ts_pupil_diameters) == TimeStampedPupilDiameters)
# TODO: Have TimestampedDataDictionary and TimestampedDataDictionaryList classes?
ts_analysis = []
# Iterate on pupil diameters
for pupil_diameter in ts_pupil_diameters:
analysis = self.analyze(pupil_diameter.timestamp, pupil_diameter)
if analysis is not None:
ts_analysis.append((pupil_diameter.timestamp, analysis))
return ts_analysis
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