import unittest

from nd2reader.artificial import ArtificialND2
from nd2reader.label_map import LabelMap
from nd2reader.raw_metadata import RawMetadata


class TestRawMetadata(unittest.TestCase):
    def setUp(self):
        self.nd2 = ArtificialND2('test_data/test_nd2_raw_metadata001.nd2')
        self.raw_text, self.locations, self.file_data = self.nd2.raw_text, self.nd2.locations, self.nd2.data
        self.label_map = LabelMap(self.raw_text)
        self.metadata = RawMetadata(self.nd2.file_handle, self.label_map)

    def test_parse_roi_shape(self):
        self.assertEqual(self.metadata._parse_roi_shape(3), 'rectangle')
        self.assertEqual(self.metadata._parse_roi_shape(9), 'circle')
        self.assertIsNone(self.metadata._parse_roi_shape(-1))

    def test_parse_roi_type(self):
        self.assertEqual(self.metadata._parse_roi_type(3), 'reference')
        self.assertEqual(self.metadata._parse_roi_type(2), 'background')
        self.assertEqual(self.metadata._parse_roi_type(4), 'stimulation')
        self.assertIsNone(self.metadata._parse_roi_type(-1))

    def test_dict(self):
        self.assertTrue(type(self.metadata.__dict__) is dict)

    def test_parsed_metadata_has_all_keys(self):
        metadata = self.metadata.get_parsed_metadata()
        self.assertTrue(type(metadata) is dict)
        required_keys = ["height", "width", "date", "fields_of_view", "frames", "z_levels", "total_images_per_channel",
                         "channels", "pixel_microns"]
        for required in required_keys:
            self.assertTrue(required in metadata)

    def test_pfs_status(self):
        self.assertEqual(self.file_data['pfs_status'], self.metadata.pfs_status[0])