""" 

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 <http://www.gnu.org/licenses/>.
"""

__author__ = "Théo de la Hogue"
__credits__ = []
__copyright__ = "Copyright 2023, Ecole Nationale de l'Aviation Civile (ENAC)"
__license__ = "GPLv3"

from argaze import DataFeatures
from argaze.utils import UtilsFeatures

class AOIScanPathAnalysisLogger(DataFeatures.PipelineStepObserver, UtilsFeatures.FileWriter):

	def on_look(self, timestamp, layer, exception):
		"""Log aoi scan path metrics"""

		if layer.is_analysis_available():

			log = (
				timestamp,
				layer.aoi_scan_path_analyzers['argaze.GazeAnalysis.Basic'].path_duration, 
				layer.aoi_scan_path_analyzers['argaze.GazeAnalysis.Basic'].steps_number, 
				layer.aoi_scan_path_analyzers['argaze.GazeAnalysis.KCoefficient'].K, 
				layer.aoi_scan_path_analyzers['argaze.GazeAnalysis.LempelZivComplexity'].lempel_ziv_complexity
			)

			self.write(log)

# Export loggers instances to register them as pipeline step object observers
__observers__ = {
	"AOI Scan path analysis logger": AOIScanPathAnalysisLogger(path="_export/logs/aoi_scan_path_metrics.csv", header=("Timestamp (ms)", "Duration (ms)", "Step", "K", "LZC"))
	}