"""Tests for CLI commands."""

import tempfile
from pathlib import Path
from click.testing import CliRunner

from src.confgen.cli import main


class TestCLI:
    """Tests for CLI commands."""

    def setup_method(self):
        """Set up test fixtures."""
        self.runner = CliRunner()

    def test_main_help(self):
        """Test that main command shows help."""
        result = self.runner.invoke(main, ["--help"])

        assert result.exit_code == 0
        assert "Generate, validate" in result.output

    def test_generate_command_exists(self):
        """Test that generate command exists."""
        result = self.runner.invoke(main, ["generate", "--help"])

        assert result.exit_code == 0
        assert "Generate a configuration file" in result.output

    def test_list_command_exists(self):
        """Test that list command exists."""
        result = self.runner.invoke(main, ["list", "--help"])

        assert result.exit_code == 0
        assert "List available templates" in result.output

    def test_validate_command_exists(self):
        """Test that validate command exists."""
        result = self.runner.invoke(main, ["validate", "--help"])

        assert result.exit_code == 0
        assert "Validate a configuration file" in result.output

    def test_edit_command_exists(self):
        """Test that edit command exists."""
        result = self.runner.invoke(main, ["edit", "--help"])

        assert result.exit_code == 0
        assert "interactive editor" in result.output.lower()

    def test_generate_without_template_shows_error(self):
        """Test that generate without template shows error."""
        result = self.runner.invoke(main, ["generate"])

        assert result.exit_code != 0
        assert "Missing argument" in result.output

    def test_generate_with_nonexistent_template(self):
        """Test that generate with nonexistent template shows error."""
        with tempfile.TemporaryDirectory() as tmpdir:
            result = self.runner.invoke(main, ["generate", "--template", "nonexistent", "--config-dir", tmpdir])

            assert result.exit_code != 0

    def test_list_with_templates_option(self):
        """Test list with --templates option."""
        with tempfile.TemporaryDirectory() as tmpdir:
            confgen_yaml = Path(tmpdir) / "confgen.yaml"
            confgen_yaml.write_text("templates: {}\nenvironments: {}\n")
            result = self.runner.invoke(main, ["--config-dir", tmpdir, "list", "--templates"])

            assert result.exit_code == 0

    def test_list_with_environments_option(self):
        """Test list with --environments option."""
        with tempfile.TemporaryDirectory() as tmpdir:
            confgen_yaml = Path(tmpdir) / "confgen.yaml"
            confgen_yaml.write_text("templates: {}\nenvironments: {}\n")
            result = self.runner.invoke(main, ["--config-dir", tmpdir, "list", "--environments"])

            assert result.exit_code == 0

    def test_version_option(self):
        """Test --version option."""
        result = self.runner.invoke(main, ["--version"])

        assert result.exit_code == 0
        assert "0.1.0" in result.output

    def test_environment_option(self):
        """Test --environment option."""
        with tempfile.TemporaryDirectory() as tmpdir:
            result = self.runner.invoke(main, ["--environment", "staging", "--config-dir", tmpdir, "list"])

            assert result.exit_code == 0

    def test_validate_without_file_shows_error(self):
        """Test validate without file shows error."""
        result = self.runner.invoke(main, ["validate"])

        assert result.exit_code != 0
        assert "Missing argument" in result.output

    def test_validate_with_nonexistent_file(self):
        """Test validate with nonexistent file shows error."""
        result = self.runner.invoke(main, ["validate", "--config", "/nonexistent/file.yaml"])

        assert result.exit_code != 0