"""Tests for convertPPT class."""

from pathlib import Path
from unittest.mock import MagicMock, patch

import pytest

from pptopic.lib import convertPPT


class TestConvertPPT:
    """Test convertPPT class."""

    TTYPE_VALUES = [("JPG", 17), ("PNG", 18), ("PDF", 32), ("XPS", 33)]

    @pytest.mark.parametrize("ttype,expected", TTYPE_VALUES)
    def test_ttypes_mapping(self, ttype, expected):
        assert convertPPT.TTYPES[ttype] == expected

    @pytest.mark.parametrize("as_path", [False, True])
    @patch("pptopic.lib.sys.platform", "win32")
    def test_init_valid(self, as_path, tmp_path):
        test_file = tmp_path / "test.pptx"
        test_file.touch()
        if as_path:
            test_file = Path(test_file)

        with patch("pptopic.lib.wcc.Dispatch"):
            ppt = convertPPT(test_file, trans="JPG")
            assert ppt.savetype == "JPG"

    @patch("pptopic.lib.sys.platform", "win32")
    def test_init_nonexistent_file(self):
        with pytest.raises(FileNotFoundError, match="File not found"):
            convertPPT("nonexistent.pptx")

    @patch("pptopic.lib.sys.platform", "win32")
    def test_init_invalid_trans_type(self, tmp_path):
        test_file = tmp_path / "test.pptx"
        test_file.touch()
        with pytest.raises(ValueError, match="Save type is not supported"):
            convertPPT(test_file, trans="BMP")

    @pytest.mark.parametrize("ttype,expected", [("jpg", "JPG"), ("Pdf", "PDF")])
    @patch("pptopic.lib.sys.platform", "win32")
    def test_init_case_insensitive_trans(self, ttype, expected, tmp_path):
        test_file = tmp_path / "test.pptx"
        test_file.touch()
        with patch("pptopic.lib.wcc.Dispatch"):
            ppt = convertPPT(test_file, trans=ttype)
            assert ppt.savetype == expected

    @patch("pptopic.lib.sys.platform", "linux")
    def test_init_non_windows_raises_error(self):
        with pytest.raises(SystemError, match="Only support Windows system"):
            convertPPT("test.pptx")

    @patch("pptopic.lib.sys.platform", "win32")
    def test_context_manager(self, tmp_path):
        test_file = tmp_path / "test.pptx"
        test_file.touch()

        with patch("pptopic.lib.wcc.Dispatch") as mock_dispatch:
            mock_app = MagicMock()
            mock_dispatch.return_value = mock_app

            with convertPPT(test_file) as ppt:
                assert ppt.savetype == "JPG"

            mock_app.Quit.assert_called_once()

    @pytest.mark.parametrize(
        "save_as,expected",
        [(None, "JPG"), ("PDF", "PDF")],
        ids=["default_jpg", "explicit_pdf"],
    )
    @patch("pptopic.lib.sys.platform", "win32")
    def test_saveas(self, save_as, expected, tmp_path):
        test_file = tmp_path / "test.pptx"
        test_file.touch()
        with patch("pptopic.lib.wcc.Dispatch"):
            ppt = convertPPT(test_file, trans="PNG")
            ppt.saveAs(save_as)
            assert ppt.savetype == expected

    @patch("pptopic.lib.sys.platform", "win32")
    def test_saveas_invalid_type(self, tmp_path):
        test_file = tmp_path / "test.pptx"
        test_file.touch()
        with patch("pptopic.lib.wcc.Dispatch"):
            ppt = convertPPT(test_file)
            with pytest.raises(ValueError, match="Save type is not supported"):
                ppt.saveAs("BMP")

    @patch("pptopic.lib.sys.platform", "win32")
    def test_open_classmethod(self, tmp_path):
        test_file = tmp_path / "test.pptx"
        test_file.touch()
        with patch("pptopic.lib.wcc.Dispatch"):
            ppt = convertPPT.open(test_file, trans="PNG")
            assert ppt.savetype == "PNG"
            assert isinstance(ppt, convertPPT)