#!/usr/bin/env python

""" """

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

import unittest

from argaze import GazeFeatures
from argaze.GazeAnalysis import NGram
from argaze.utils import MiscFeatures

GazeFeaturesTest = MiscFeatures.importFromTestPackage('GazeFeatures')

class TestAOIScanPathAnalyzer(unittest.TestCase):
    """Test AOIScanPathAnalyzer class."""

    def test_analyze(self):
        """Test analyze method."""

        ngram_analyzer = NGram.AOIScanPathAnalyzer()

        aoi_scan_path = GazeFeaturesTest.build_aoi_scan_path(['Foo', 'Bar', 'Shu'], ['Bar', 'Shu', 'Foo', 'Bar', 'Shu', 'Foo'])

        # Check aoi scan path
        self.assertEqual(len(aoi_scan_path), 6)

        ngram_analysis = ngram_analyzer.analyze(aoi_scan_path, 2)

        # Check 2-gram analysis
        self.assertEqual(len(ngram_analysis), 3)
        self.assertEqual(ngram_analysis[('Bar', 'Shu')], 2)
        self.assertEqual(ngram_analysis[('Shu', 'Foo')], 2)
        self.assertEqual(ngram_analysis[('Foo', 'Bar')], 1)

        ngram_analysis = ngram_analyzer.analyze(aoi_scan_path, 3)

        # Check 3-gram analysis
        self.assertEqual(len(ngram_analysis), 3)
        self.assertEqual(ngram_analysis[('Bar', 'Shu', 'Foo')], 2)
        self.assertEqual(ngram_analysis[('Shu', 'Foo', 'Bar')], 1)
        self.assertEqual(ngram_analysis[('Foo', 'Bar', 'Shu')], 1)

        ngram_analysis = ngram_analyzer.analyze(aoi_scan_path, 4)

        # Check 4-gram analysis
        self.assertEqual(len(ngram_analysis), 3)
        self.assertEqual(ngram_analysis[('Bar', 'Shu', 'Foo', 'Bar')], 1)
        self.assertEqual(ngram_analysis[('Shu', 'Foo', 'Bar', 'Shu')], 1)
        self.assertEqual(ngram_analysis[('Foo', 'Bar', 'Shu', 'Foo')], 1)

if __name__ == '__main__':

    unittest.main()