from tempfile import SpooledTemporaryFile

import pytest

from test_unstructured.partition.test_constants import (
    EXPECTED_TABLE,
    EXPECTED_TABLE_WITH_EMOJI,
    EXPECTED_TEXT,
    EXPECTED_TEXT_WITH_EMOJI,
    EXPECTED_TEXT_XLSX,
)
from test_unstructured.unit_utils import assert_round_trips_through_JSON, example_doc_path
from unstructured.cleaners.core import clean_extra_whitespace
from unstructured.documents.elements import Table
from unstructured.partition.tsv import partition_tsv

EXPECTED_FILETYPE = "text/tsv"


@pytest.mark.parametrize(
    ("filename", "expected_text", "expected_table"),
    [
        ("stanley-cups.tsv", EXPECTED_TEXT, EXPECTED_TABLE),
        ("stanley-cups-with-emoji.tsv", EXPECTED_TEXT_WITH_EMOJI, EXPECTED_TABLE_WITH_EMOJI),
    ],
)
def test_partition_tsv_from_filename(filename, expected_text, expected_table):
    f_path = f"example-docs/{filename}"
    elements = partition_tsv(filename=f_path, include_header=False)

    assert clean_extra_whitespace(elements[0].text) == expected_text
    assert elements[0].metadata.text_as_html == expected_table
    assert elements[0].metadata.filetype == EXPECTED_FILETYPE
    for element in elements:
        assert element.metadata.filename == filename


def test_partition_tsv_from_filename_with_metadata_filename(
    filename="example-docs/stanley-cups.tsv",
):
    elements = partition_tsv(filename=filename, metadata_filename="test", include_header=False)

    assert clean_extra_whitespace(elements[0].text) == EXPECTED_TEXT
    for element in elements:
        assert element.metadata.filename == "test"


@pytest.mark.parametrize(
    ("filename", "expected_text", "expected_table"),
    [
        ("stanley-cups.tsv", EXPECTED_TEXT, EXPECTED_TABLE),
        ("stanley-cups-with-emoji.tsv", EXPECTED_TEXT_WITH_EMOJI, EXPECTED_TABLE_WITH_EMOJI),
    ],
)
def test_partition_tsv_from_file(filename, expected_text, expected_table):
    f_path = f"example-docs/{filename}"
    with open(f_path, "rb") as f:
        elements = partition_tsv(file=f, include_header=False)

    assert clean_extra_whitespace(elements[0].text) == expected_text
    assert isinstance(elements[0], Table)
    assert elements[0].metadata.text_as_html == expected_table
    assert elements[0].metadata.filetype == EXPECTED_FILETYPE
    for element in elements:
        assert element.metadata.filename is None


def test_partition_tsv_from_file_with_metadata_filename(
    filename="example-docs/stanley-cups.tsv",
):
    with open(filename, "rb") as f:
        elements = partition_tsv(file=f, metadata_filename="test", include_header=False)

    assert clean_extra_whitespace(elements[0].text) == EXPECTED_TEXT
    for element in elements:
        assert element.metadata.filename == "test"


def test_partition_tsv_filename_exclude_metadata(
    filename="example-docs/stanley-cups.tsv",
):
    elements = partition_tsv(filename=filename, include_metadata=False, include_header=False)

    assert clean_extra_whitespace(elements[0].text) == EXPECTED_TEXT
    assert isinstance(elements[0], Table)
    assert elements[0].metadata.text_as_html is None
    assert elements[0].metadata.filetype is None
    for element in elements:
        assert element.metadata.filename is None


def test_partition_tsv_from_file_exclude_metadata(
    filename="example-docs/stanley-cups.tsv",
):
    with open(filename, "rb") as f:
        elements = partition_tsv(file=f, include_metadata=False)

    for i in range(len(elements)):
        assert elements[i].metadata.to_dict() == {}


def test_partition_tsv_metadata_date(
    mocker,
    filename="example-docs/stanley-cups.tsv",
):
    mocked_last_modification_date = "2029-07-05T09:24:28"

    mocker.patch(
        "unstructured.partition.tsv.get_last_modified_date",
        return_value=mocked_last_modification_date,
    )

    elements = partition_tsv(
        filename=filename,
        include_header=False,
    )

    assert elements[0].metadata.last_modified == mocked_last_modification_date


def test_partition_tsv_with_custom_metadata_date(
    mocker,
    filename="example-docs/stanley-cups.tsv",
):
    mocked_last_modification_date = "2029-07-05T09:24:28"
    expected_last_modification_date = "2020-07-05T09:24:28"

    mocker.patch(
        "unstructured.partition.tsv.get_last_modified_date",
        return_value=mocked_last_modification_date,
    )

    elements = partition_tsv(
        filename=filename,
        metadata_last_modified=expected_last_modification_date,
        include_header=False,
    )

    assert elements[0].metadata.last_modified == expected_last_modification_date


def test_partition_tsv_from_file_metadata_date(
    mocker,
    filename="example-docs/stanley-cups.tsv",
):
    mocked_last_modification_date = "2029-07-05T09:24:28"

    mocker.patch(
        "unstructured.partition.tsv.get_last_modified_date_from_file",
        return_value=mocked_last_modification_date,
    )

    with open(filename, "rb") as f:
        elements = partition_tsv(
            file=f,
            include_header=False,
        )

    assert elements[0].metadata.last_modified is None


def test_partition_tsv_from_file_explicit_get_metadata_date(
    mocker,
    filename="example-docs/stanley-cups.tsv",
):
    mocked_last_modification_date = "2029-07-05T09:24:28"

    mocker.patch(
        "unstructured.partition.tsv.get_last_modified_date_from_file",
        return_value=mocked_last_modification_date,
    )

    with open(filename, "rb") as f:
        elements = partition_tsv(
            file=f,
            include_header=False,
            date_from_file_object=True,
        )

    assert elements[0].metadata.last_modified == mocked_last_modification_date


def test_partition_tsv_from_file_with_custom_metadata_date(
    mocker,
    filename="example-docs/stanley-cups.tsv",
):
    mocked_last_modification_date = "2029-07-05T09:24:28"
    expected_last_modification_date = "2020-07-05T09:24:28"

    mocker.patch(
        "unstructured.partition.tsv.get_last_modified_date_from_file",
        return_value=mocked_last_modification_date,
    )

    with open(filename, "rb") as f:
        elements = partition_tsv(
            file=f, metadata_last_modified=expected_last_modification_date, include_header=False
        )

    assert elements[0].metadata.last_modified == expected_last_modification_date


def test_partition_tsv_from_file_without_metadata_date(
    filename="example-docs/stanley-cups.tsv",
):
    """Test partition_tsv() with file that are not possible to get last modified date"""

    with open(filename, "rb") as f:
        sf = SpooledTemporaryFile()
        sf.write(f.read())
        sf.seek(0)
        elements = partition_tsv(file=sf, include_header=False, date_from_file_object=True)

    assert elements[0].metadata.last_modified is None


@pytest.mark.parametrize("filename", ["stanley-cups.tsv", "stanley-cups-with-emoji.tsv"])
def test_partition_tsv_with_json(filename: str):
    elements = partition_tsv(example_doc_path(filename), include_header=False)
    assert_round_trips_through_JSON(elements)


# NOTE (jennings) partition_tsv returns a single TableElement per sheet,
# so no adding tests for multiple languages like the other partitions
def test_partition_tsv_element_metadata_has_languages():
    filename = "example-docs/stanley-cups-with-emoji.tsv"
    elements = partition_tsv(filename=filename, include_header=False)
    assert elements[0].metadata.languages == ["eng"]


def test_partition_csv_header():
    filename = "example-docs/stanley-cups.tsv"
    elements = partition_tsv(filename=filename, strategy="fast", include_header=True)
    assert (
        clean_extra_whitespace(elements[0].text)
        == "Stanley Cups Unnamed: 1 Unnamed: 2 " + EXPECTED_TEXT_XLSX
    )
    assert "<thead>" in elements[0].metadata.text_as_html