"""Tests for bincio.shared.images — shared image upload utilities."""
from __future__ import annotations

from pathlib import Path

import pytest

from bincio.shared.images import ALLOWED_IMAGE_TYPES, MAX_IMAGE_BYTES, unique_image_name


def test_allowed_types_contains_expected():
    assert "image/jpeg" in ALLOWED_IMAGE_TYPES
    assert "image/png" in ALLOWED_IMAGE_TYPES
    assert "image/webp" in ALLOWED_IMAGE_TYPES
    assert "image/gif" in ALLOWED_IMAGE_TYPES


def test_allowed_types_excludes_unexpected():
    assert "image/avif" not in ALLOWED_IMAGE_TYPES
    assert "image/svg+xml" not in ALLOWED_IMAGE_TYPES
    assert "application/octet-stream" not in ALLOWED_IMAGE_TYPES


def test_max_image_bytes():
    assert MAX_IMAGE_BYTES == 10 * 1024 * 1024


def test_unique_name_no_collision(tmp_path: Path):
    assert unique_image_name(tmp_path, "photo.jpg") == "photo.jpg"


def test_unique_name_single_collision(tmp_path: Path):
    (tmp_path / "photo.jpg").touch()
    assert unique_image_name(tmp_path, "photo.jpg") == "photo_1.jpg"


def test_unique_name_multiple_collisions(tmp_path: Path):
    (tmp_path / "photo.jpg").touch()
    (tmp_path / "photo_1.jpg").touch()
    assert unique_image_name(tmp_path, "photo.jpg") == "photo_2.jpg"


def test_unique_name_no_suffix(tmp_path: Path):
    (tmp_path / "photo").touch()
    assert unique_image_name(tmp_path, "photo") == "photo_1"


def test_unique_name_preserves_extension_case(tmp_path: Path):
    assert unique_image_name(tmp_path, "MyPhoto.PNG") == "MyPhoto.PNG"


def test_unique_name_empty_directory_returns_original(tmp_path: Path):
    assert unique_image_name(tmp_path, "img.webp") == "img.webp"