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)
    assert isinstance(metadata_writer.sidecar_path, Path)