from pathlib import Path

import pytest

from photools3.metadata_writer import MetadataWriter
from test.test_photo import PATHS_DNG_EXAMPLES


@pytest.fixture
def make_dng_file(tmp_path):
    def _make(index: int = 0) -> Path:
        src = PATHS_DNG_EXAMPLES[index]
        dst = tmp_path / f"copy_{index}_{src.name}"
        return dst

    return _make


@pytest.fixture
def dng_file(make_dng):
    return make_dng()


def test_read_metadata(make_dng_file):
    """primitive test for `MetadataWriter`"""
    file_path = make_dng_file()
    result = MetadataWriter(file_path)
    assert result


@pytest.mark.parametrize("idx", range(len(PATHS_DNG_EXAMPLES)))
def test_read_metadata_sidecar_path(make_dng_file, idx):
    file_path = make_dng_file(idx)
    metadata_writer = MetadataWriter(file_path)
    print(metadata_writer.sidecar_path)
    assert isinstance(metadata_writer.sidecar_path, Path)
    assert str(metadata_writer.sidecar_path).lower().endswith(".dng.xmp")


def test_get_metadata():
    # TODO: Parametrized test on querying metadata fields
    ...


def test_set_metadata():
    # TODO: Paramtrized test on setting metadata fields
    ...


def test_set_caption_on_empty():
    # TODO
    ...


def test_set_caption_on_existing():
    # TODO
    ...


def test_set_keywords_on_empty():
    # TODO
    ...


def test_set_keywords_on_existing():
    # TODO
    ...