import unittest

from onmt.transforms.bart import word_start_finder
from onmt.utils.alignment import subword_map_by_joiner, subword_map_by_spacer
from onmt.constants import SubwordMarker


class TestWordStartFinder(unittest.TestCase):
    def test_word_start_naive(self):
        word_start_finder_fn = word_start_finder(ignore_subword=True)
        data_in = [
            "however",
            ",",
            "according",
            "to",
            "the",
            "logs",
            ",",
            "she",
            "is",
            "hard",
            "-",
            "working",
            ".",
        ]  # noqa: E501
        true_out = [
            True,
            True,
            True,
            True,
            True,
            True,
            True,
            True,
            True,
            True,
            True,
            True,
            True,
        ]  # noqa: E501
        out = word_start_finder_fn(data_in)
        self.assertEqual(out, true_out)

    def test_word_start_joiner(self):
        word_start_finder_fn = word_start_finder(is_joiner=True)
        data_in = [
            "however",
            "￭,",
            "according",
            "to",
            "the",
            "logs",
            "￭,",
            "she",
            "is",
            "hard",
            "￭-￭",
            "working",
            "￭.",
        ]  # noqa: E501
        true_out = [
            True,
            False,
            True,
            True,
            True,
            True,
            False,
            True,
            True,
            True,
            False,
            False,
            False,
        ]  # noqa: E501
        out = word_start_finder_fn(data_in)
        self.assertEqual(out, true_out)

    def test_word_start_spacer(self):
        word_start_finder_fn = word_start_finder()
        data_in = [
            "▁however",
            ",",
            "▁according",
            "▁to",
            "▁the",
            "▁logs",
            ",",
            "▁she",
            "▁is",
            "▁hard",
            "-",
            "working",
            ".",
        ]  # noqa: E501
        true_out = [
            True,
            False,
            True,
            True,
            True,
            True,
            False,
            True,
            True,
            True,
            False,
            False,
            False,
        ]  # noqa: E501
        out = word_start_finder_fn(data_in)
        self.assertEqual(out, true_out)
        # no dummy prefix
        no_dummy = [
            "however",
            ",",
            "▁according",
            "▁to",
            "▁the",
            "▁logs",
            ",",
            "▁she",
            "▁is",
            "▁hard",
            "-",
            "working",
            ".",
        ]  # noqa: E501
        no_dummy_out = word_start_finder_fn(no_dummy)
        self.assertEqual(no_dummy_out, true_out)


class TestSubwordGroup(unittest.TestCase):
    def test_subword_group_joiner(self):
        data_in = [
            "however",
            "￭,",
            "according",
            "to",
            "the",
            "logs",
            "￭,",
            "she",
            "is",
            "hard",
            "￭-￭",
            "working",
            "￭.",
        ]  # noqa: E501
        true_out = [0, 0, 1, 2, 3, 4, 4, 5, 6, 7, 7, 7, 7]
        out = subword_map_by_joiner(data_in, marker=SubwordMarker.JOINER)
        self.assertEqual(out, true_out)

    def test_subword_group_joiner_with_case_markup(self):
        data_in = [
            "｟mrk_case_modifier_C｠",
            "however",
            "￭,",
            "according",
            "to",
            "the",
            "logs",
            "￭,",
            "｟mrk_begin_case_region_U｠",
            "she",
            "is",
            "hard",
            "￭-￭",
            "working",
            "｟mrk_end_case_region_U｠",
            "￭.",
        ]  # noqa: E501
        true_out = [0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 6, 7, 7, 7, 7, 7]
        out = subword_map_by_joiner(data_in, marker=SubwordMarker.JOINER)
        self.assertEqual(out, true_out)

    def test_subword_group_joiner_with_case_markup_advanced(self):
        data_in = [
            "｟mrk_case_modifier_C｠",
            "dummy",
            "text",
            "｟mrk_case_modifier_C｠",
            "1￭",
            "h￭",
            "k",
            "｟mrk_begin_case_region_U｠",
            "th￭",
            "｟mrk_end_case_region_U｠",
            "n",
            "more",
            "dummy",
            "text",
        ]  # noqa: E501
        true_out = [0, 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 6]
        out = subword_map_by_joiner(data_in, marker=SubwordMarker.JOINER)
        self.assertEqual(out, true_out)

    def test_subword_group_joiner_prior_tokenization(self):
        data_in = [
            "｟mrk_case_modifier_C｠",
            "how￭",
            "ever",
            "￭,",
            "according",
            "to",
            "the",
            "logs",
            "￭,",
            "｟mrk_begin_case_region_U｠",
            "she",
            "is",
            "hard",
            "￭-￭",
            "working",
            "｟mrk_end_case_region_U｠",
            "￭.",
        ]  # noqa: E501
        original_data_in = [
            "However",
            "￭,",
            "according",
            "to",
            "the",
            "logs",
            "￭,",
            "SHE",
            "IS",
            "HARD-WORKING",
            "￭.",
        ]  # noqa: E501
        true_out = [0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 9, 9, 9, 10]  # noqa: E501
        out = subword_map_by_joiner(
            data_in, marker=SubwordMarker.JOINER, original_subwords=original_data_in
        )
        self.assertEqual(out, true_out)

    def test_subword_group_joiner_prior_tokenization_harder(self):
        data_in = [
            "｟mrk_case_modifier_C｠",
            "how￭",
            "ever",
            "￭,",
            "according",
            "to",
            "the",
            "logs",
            "￭,",
            "｟mrk_begin_case_region_U｠",
            "she",
            "is",
            "hard",
            "￭-￭",
            "working",
            "｟mrk_end_case_region_U｠",
            "￭.",
        ]  # noqa: E501
        original_data_in = [
            "｟mrk_case_modifier_C｠",
            "how￭",
            "ever",
            "￭,",
            "according",
            "to",
            "the",
            "logs",
            "￭,",
            "｟mrk_begin_case_region_U｠",
            "she",
            "is",
            "hard",
            "￭-￭",
            "working",
            "｟mrk_end_case_region_U｠",
            "￭.",
        ]  # noqa: E501
        true_out = [
            0,
            1,
            2,
            3,
            4,
            5,
            6,
            7,
            8,
            9,
            10,
            11,
            12,
            13,
            14,
            15,
            16,
        ]  # noqa: E501
        out = subword_map_by_joiner(
            data_in, marker=SubwordMarker.JOINER, original_subwords=original_data_in
        )
        self.assertEqual(out, true_out)

    def test_subword_group_joiner_with_new_joiner(self):
        data_in = [
            "｟mrk_case_modifier_C｠",
            "however",
            "￭",
            ",",
            "according",
            "to",
            "the",
            "logs",
            "￭",
            ",",
            "｟mrk_begin_case_region_U｠",
            "she",
            "is",
            "hard",
            "￭",
            "-",
            "￭",
            "working",
            "｟mrk_end_case_region_U｠",
            "￭",
            ".",
        ]  # noqa: E501
        true_out = [
            0,
            0,
            0,
            0,
            1,
            2,
            3,
            4,
            4,
            4,
            5,
            5,
            6,
            7,
            7,
            7,
            7,
            7,
            7,
            7,
            7,
        ]  # noqa: E501
        out = subword_map_by_joiner(data_in, marker=SubwordMarker.JOINER)
        self.assertEqual(out, true_out)

    def test_subword_group_naive(self):
        data_in = [
            "however",
            ",",
            "according",
            "to",
            "the",
            "logs",
            ",",
            "she",
            "is",
            "hard",
            "-",
            "working",
            ".",
        ]  # noqa: E501
        true_out = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
        out = subword_map_by_joiner(data_in, marker=SubwordMarker.JOINER)
        self.assertEqual(out, true_out)

    def test_subword_group_spacer(self):
        data_in = [
            "however",
            ",",
            "▁according",
            "▁to",
            "▁the",
            "▁logs",
            ",",
            "▁she",
            "▁is",
            "▁hard",
            "-",
            "working",
            ".",
        ]  # noqa: E501
        true_out = [0, 0, 1, 2, 3, 4, 4, 5, 6, 7, 7, 7, 7]
        out = subword_map_by_spacer(data_in, marker=SubwordMarker.SPACER)
        self.assertEqual(out, true_out)
        # no dummy prefix
        no_dummy = [
            "however",
            ",",
            "▁according",
            "▁to",
            "▁the",
            "▁logs",
            ",",
            "▁she",
            "▁is",
            "▁hard",
            "-",
            "working",
            ".",
        ]  # noqa: E501
        no_dummy_out = subword_map_by_spacer(no_dummy, marker=SubwordMarker.SPACER)
        self.assertEqual(no_dummy_out, true_out)

    def test_subword_group_spacer_with_case_markup(self):
        data_in = [
            "｟mrk_case_modifier_C｠",
            "▁however",
            ",",
            "▁according",
            "▁to",
            "▁the",
            "▁logs",
            ",",
            "▁｟mrk_begin_case_region_U｠",
            "▁she",
            "▁is",
            "▁hard",
            "-",
            "working",
            ".",
            "▁｟mrk_end_case_region_U｠",
        ]  # noqa: E501
        true_out = [0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 6, 7, 7, 7, 7, 7]
        out = subword_map_by_spacer(data_in, marker=SubwordMarker.SPACER)
        self.assertEqual(out, true_out)

    def test_subword_group_spacer_with_spacer_new(self):
        data_in = [
            "｟mrk_case_modifier_C｠",
            "▁",
            "however",
            ",",
            "▁",
            "according",
            "▁",
            "to",
            "▁",
            "the",
            "▁",
            "logs",
            ",",
            "▁",
            "｟mrk_begin_case_region_U｠",
            "▁",
            "she",
            "▁",
            "is",
            "▁",
            "hard",
            "-",
            "working",
            ".",
            "▁",
            "｟mrk_end_case_region_U｠",
        ]  # noqa: E501
        true_out = [
            0,
            0,
            0,
            0,
            1,
            1,
            2,
            2,
            3,
            3,
            4,
            4,
            4,
            5,
            5,
            5,
            5,
            6,
            6,
            7,
            7,
            7,
            7,
            7,
            7,
            7,
        ]  # noqa: E501
        out = subword_map_by_spacer(data_in, marker=SubwordMarker.SPACER)
        self.assertEqual(out, true_out)


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