"""Tests for cli.autofmt module."""

from __future__ import annotations

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

from pyflowx.ops import autofmt as dev


# ---------------------------------------------------------------------- #
# format_with_ruff
# ---------------------------------------------------------------------- #
class TestFormatWithRuff:
    """Test format_with_ruff function."""

    def test_format_with_ruff(self, tmp_path: Path) -> None:
        """Should format with ruff."""
        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.format_with_ruff(tmp_path, fix=True)
            assert mock_run.called

    def test_format_with_ruff_no_fix(self, tmp_path: Path) -> None:
        """Should format with ruff without fix."""
        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.format_with_ruff(tmp_path, fix=False)
            # Should not include --fix flag
            call_args = mock_run.call_args[0][0]
            assert "--fix" not in call_args


# ---------------------------------------------------------------------- #
# lint_with_ruff
# ---------------------------------------------------------------------- #
class TestLintWithRuff:
    """Test lint_with_ruff function."""

    def test_lint_with_ruff(self, tmp_path: Path) -> None:
        """Should lint with ruff."""
        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.lint_with_ruff(tmp_path, fix=True)
            assert mock_run.called

    def test_lint_with_ruff_no_fix(self, tmp_path: Path) -> None:
        """Should lint with ruff without fix."""
        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.lint_with_ruff(tmp_path, fix=False)
            # Should not include --fix flag
            call_args = mock_run.call_args[0][0]
            assert "--fix" not in call_args


# ---------------------------------------------------------------------- #
# add_docstring
# ---------------------------------------------------------------------- #
class TestAddDocstring:
    """Test add_docstring function."""

    def test_add_docstring_to_file(self, tmp_path: Path) -> None:
        """Should add docstring to file."""
        py_file = tmp_path / "test.py"
        py_file.write_text("def test():\n    pass\n")

        result = dev.add_docstring(py_file, '"""Test module."""')
        assert result is True

    def test_add_docstring_skips_files_with_docstring(self, tmp_path: Path) -> None:
        """Should skip files that already have docstring."""
        py_file = tmp_path / "test.py"
        py_file.write_text('"""Existing docstring."""\ndef test():\n    pass\n')

        result = dev.add_docstring(py_file, '"""New docstring."""')
        assert result is False

    def test_add_docstring_empty_file(self, tmp_path: Path) -> None:
        """Should handle empty file."""
        py_file = tmp_path / "test.py"
        py_file.write_text("")

        result = dev.add_docstring(py_file, '"""Test module."""')
        # Should handle empty file
        assert result is True


# ---------------------------------------------------------------------- #
# generate_module_docstring
# ---------------------------------------------------------------------- #
class TestGenerateModuleDocstring:
    """Test generate_module_docstring function."""

    def test_generate_module_docstring_basic(self, tmp_path: Path) -> None:
        """Should generate basic docstring."""
        py_file = tmp_path / "test.py"
        py_file.write_text("def test():\n    pass\n")

        result = dev.generate_module_docstring(py_file)
        # Should contain "Tests for" since stem contains "test"
        assert "Tests for" in result

    def test_generate_module_docstring_with_package(self, tmp_path: Path) -> None:
        """Should generate docstring for package."""
        py_file = tmp_path / "mypackage" / "test.py"
        py_file.parent.mkdir(parents=True)
        py_file.write_text("def test():\n    pass\n")

        result = dev.generate_module_docstring(py_file)
        assert "mypackage" in result

    def test_generate_module_docstring_cli(self, tmp_path: Path) -> None:
        """Should generate docstring for CLI module."""
        py_file = tmp_path / "cli.py"
        py_file.write_text("def test():\n    pass\n")

        result = dev.generate_module_docstring(py_file)
        assert "Command-line interface" in result

    def test_generate_module_docstring_util(self, tmp_path: Path) -> None:
        """Should generate docstring for utility module."""
        py_file = tmp_path / "utils.py"
        py_file.write_text("def test():\n    pass\n")

        result = dev.generate_module_docstring(py_file)
        assert "Utility functions" in result


# ---------------------------------------------------------------------- #
# auto_add_docstrings
# ---------------------------------------------------------------------- #
class TestAutoAddDocstrings:
    """Test auto_add_docstrings function."""

    def test_auto_add_docstrings(self, tmp_path: Path) -> None:
        """Should auto add docstrings."""
        py_file = tmp_path / "test.py"
        py_file.write_text("def test():\n    pass\n")

        with patch.object(dev, "add_docstring", return_value=True):
            count = dev.auto_add_docstrings(tmp_path)
            assert count >= 0

    def test_auto_add_docstrings_skips_ignored(self, tmp_path: Path) -> None:
        """Should skip ignored directories."""
        py_file = tmp_path / "__pycache__" / "test.py"
        py_file.parent.mkdir()
        py_file.write_text("def test():\n    pass\n")

        count = dev.auto_add_docstrings(tmp_path)
        # Should skip __pycache__
        assert count == 0

    def test_auto_add_docstrings_no_files(self, tmp_path: Path) -> None:
        """Should handle no Python files."""
        txt_file = tmp_path / "test.txt"
        txt_file.write_text("test content")

        count = dev.auto_add_docstrings(tmp_path)
        assert count == 0


# ---------------------------------------------------------------------- #
# sync_pyproject_config
# ---------------------------------------------------------------------- #
class TestSyncPyprojectConfig:
    """Test sync_pyproject_config function."""

    def test_sync_pyproject_config_creates_file(self, tmp_path: Path) -> None:
        """Should sync pyproject.toml config."""
        main_toml = tmp_path / "pyproject.toml"
        main_toml.write_text("[tool.ruff]\n")
        sub_dir = tmp_path / "subproject"
        sub_dir.mkdir()
        sub_toml = sub_dir / "pyproject.toml"
        sub_toml.write_text("[tool.ruff]\n")

        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.sync_pyproject_config(tmp_path)
            assert mock_run.called

    def test_sync_pyproject_config_updates_file(self, tmp_path: Path) -> None:
        """Should update existing pyproject.toml."""
        main_toml = tmp_path / "pyproject.toml"
        main_toml.write_text("[tool.ruff]\n")
        sub_dir = tmp_path / "subproject"
        sub_dir.mkdir()
        sub_toml = sub_dir / "pyproject.toml"
        sub_toml.write_text("[tool.ruff]\n")

        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.sync_pyproject_config(tmp_path)
            assert mock_run.called


# ---------------------------------------------------------------------- #
# format_all
# ---------------------------------------------------------------------- #
class TestFormatAll:
    """Test format_all function."""

    def test_format_all_runs_ruff_format(self, tmp_path: Path) -> None:
        """Should run ruff format."""
        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.format_all(tmp_path)
            assert mock_run.called

    def test_format_all_runs_ruff_check(self, tmp_path: Path) -> None:
        """Should run ruff check."""
        with patch("subprocess.run") as mock_run:
            mock_run.return_value = MagicMock(returncode=0)
            dev.format_all(tmp_path)
            # Should call ruff format and ruff check
            assert mock_run.call_count == 2