import os
import unittest
from unittest.mock import patch

from scripts.utils.analysis import run_analysis
from scripts.utils.classes import ParseFileName
from tests.helpers import TESTDATA, Settings
from scripts.utils.analysis import filter_humans


class TestRunAnalysis(unittest.TestCase):

    @patch('scripts.utils.helpers._load_settings')
    @patch('scripts.utils.analysis.loadCustomSpeciesList')
    def test_run_analysis(self, mock_loadCustomSpeciesList, mock_load_settings):
        # Mock the settings and species list
        mock_load_settings.return_value = Settings.with_defaults()
        mock_loadCustomSpeciesList.return_value = []

        # Test file
        test_file = ParseFileName(os.path.join(TESTDATA, '2024-02-24-birdnet-16:19:37.wav'))

        # Expected results
        expected_results = [
            {"confidence": 0.912, 'sci_name': 'Pica pica'},
            {"confidence": 0.9316, 'sci_name': 'Pica pica'},
            {"confidence": 0.8857, 'sci_name': 'Pica pica'}
        ]

        # Run the analysis
        detections = run_analysis(test_file)

        # Assertions
        self.assertEqual(len(detections), len(expected_results))
        for det, expected in zip(detections, expected_results):
            self.assertAlmostEqual(det.confidence, expected['confidence'], delta=1e-4)
            self.assertEqual(det.scientific_name, expected['sci_name'])


class TestFilterHumans(unittest.TestCase):

    @patch('scripts.utils.helpers._load_settings')
    def test_filter_humans_no_human(self, mock_load_settings):
        mock_load_settings.return_value = Settings.with_defaults()

        # Input detections without humans
        detections = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Bird_C', 0.7), ('Bird_D', 0.6)]
        ]

        # Expected output
        expected = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Bird_C', 0.7), ('Bird_D', 0.6)]
        ]

        # Run filter_humans
        result = filter_humans(detections)

        # Assertions
        self.assertEqual(result, expected)

    @patch('scripts.utils.helpers._load_settings')
    def test_filter_empty(self, mock_load_settings):
        mock_load_settings.return_value = Settings.with_defaults()

        # Input detections without humans
        detections = []

        # Expected output
        expected = []

        # Run filter_humans
        result = filter_humans(detections)

        # Assertions
        self.assertEqual(result, expected)

    @patch('scripts.utils.helpers._load_settings')
    def test_filter_humans_with_human(self, mock_load_settings):
        mock_load_settings.return_value = Settings.with_defaults()

        # Input detections with humans
        detections = [
            [('Human_Human', 0.95), ('Bird_A', 0.8)],
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Bird_C', 0.9), ('Bird_D', 0.8)],
            [('Bird_B', 0.7), ('Human vocal_Human vocal', 0.9)]
        ]

        # Expected output
        expected = [
            [('Human_Human', 0.0)],
            [('Human_Human', 0.0)],
            [('Human_Human', 0.0)],
            [('Human_Human', 0.0)]
        ]

        # Run filter_humans
        result = filter_humans(detections)

        # Assertions
        self.assertEqual(result, expected)

    @patch('scripts.utils.helpers._load_settings')
    def test_filter_humans_with_human_neighbour(self, mock_load_settings):
        mock_load_settings.return_value = Settings.with_defaults()

        # Input detections with human neighbours
        detections = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Bird_D', 0.9), ('Bird_E', 0.8)],
            [('Human_Human', 0.95), ('Bird_C', 0.7)],
            [('Bird_F', 0.6), ('Bird_G', 0.5)]
        ]

        # Expected output
        expected = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Human_Human', 0.0)],
            [('Human_Human', 0.0)],
            [('Human_Human', 0.0)]
        ]

        # Run filter_humans
        result = filter_humans(detections)

        # Assertions
        self.assertEqual(result, expected)

    @patch('scripts.utils.helpers._load_settings')
    def test_filter_humans_with_deep_human(self, mock_load_settings):
        mock_load_settings.return_value = Settings.with_defaults()

        # Input detections with human neighbours
        detections = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Bird_D', 0.9), ('Bird_E', 0.8)],
            [('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.5), ('Bird_C', 0.7), ('Human_Human', 0.95)],
            [('Bird_F', 0.6), ('Bird_G', 0.5)]
        ]

        # Expected output
        expected = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Bird_D', 0.9), ('Bird_E', 0.8)],
            [('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.5)],
            [('Bird_F', 0.6), ('Bird_G', 0.5)]
        ]

        # Run filter_humans
        result = filter_humans(detections)

        # Assertions
        self.assertEqual(result, expected)

    @patch('scripts.utils.helpers._load_settings')
    def test_filter_humans_with_human_deep(self, mock_load_settings):
        settings = Settings.with_defaults()
        settings['PRIVACY_THRESHOLD'] = 1
        mock_load_settings.return_value = settings

        # Input detections with human neighbours
        detections = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Bird_D', 0.9), ('Bird_E', 0.8)],
            [('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.7), ('Bird_C', 0.5), ('Bird_C', 0.7), ('Human_Human', 0.95)],
            [('Bird_F', 0.6), ('Bird_G', 0.5)]
        ]

        # Expected output
        expected = [
            [('Bird_A', 0.9), ('Bird_B', 0.8)],
            [('Human_Human', 0.0)],
            [('Human_Human', 0.0)],
            [('Human_Human', 0.0)]
        ]

        # Run filter_humans
        result = filter_humans(detections)

        # Assertions
        self.assertEqual(result, expected)

if __name__ == '__main__':
    unittest.main()