"""Unit tests for CleverClaude CLI interface."""

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

import pytest
from click.testing import CliRunner

from cleverclaude.cli.commands.init import InitCommand
from cleverclaude.cli.commands.start import StartCommand
from cleverclaude.cli.commands.status import StatusCommand
from cleverclaude.cli.main import app
from cleverclaude.config.settings import Settings


@pytest.mark.unit
class TestCLIMain:
    """Test suite for main CLI application."""

    def test_cli_app_creation(self):
        """Test CLI app initialization."""
        assert app.name == "cleverclaude"
        assert "Advanced AI Agent Orchestration System" in app.help

    def test_version_command(self):
        """Test --version command."""
        runner = CliRunner()
        result = runner.invoke(app, ["--version"])

        assert result.exit_code == 0
        assert "CleverClaude Python v" in result.output

    def test_help_command(self):
        """Test --help command."""
        runner = CliRunner()
        result = runner.invoke(app, ["--help"])

        assert result.exit_code == 0
        assert "CleverClaude" in result.output
        assert "init" in result.output
        assert "start" in result.output
        assert "status" in result.output

    def test_subcommand_help(self):
        """Test help for subcommands."""
        runner = CliRunner()

        # Test init command help
        result = runner.invoke(app, ["init", "--help"])
        assert result.exit_code == 0
        assert "Initialize" in result.output

        # Test start command help
        result = runner.invoke(app, ["start", "--help"])
        assert result.exit_code == 0
        assert "Start" in result.output

        # Test status command help
        result = runner.invoke(app, ["status", "--help"])
        assert result.exit_code == 0
        assert "Display" in result.output

    def test_invalid_command(self):
        """Test invalid command handling."""
        runner = CliRunner()
        result = runner.invoke(app, ["invalid_command"])

        assert result.exit_code != 0
        assert "No such command" in result.output


@pytest.mark.unit
@pytest.mark.async_test
class TestInitCommand:
    """Test suite for init command."""

    async def test_init_command_basic(self, temp_dir: Path, test_settings: Settings):
        """Test basic init command execution."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        init_cmd = InitCommand(console, logger)

        await init_cmd.execute(directory=temp_dir, template="default", force=False)

        # Verify directory structure was created
        assert (temp_dir / ".cleverclaude").exists()
        assert (temp_dir / ".cleverclaude" / "config.yaml").exists()
        assert (temp_dir / "examples").exists()
        assert (temp_dir / ".env.example").exists()

    async def test_init_command_with_template(self, temp_dir: Path):
        """Test init command with production template."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        init_cmd = InitCommand(console, logger)

        await init_cmd.execute(directory=temp_dir, template="production", force=False)

        # Verify production-specific files
        assert (temp_dir / "docker-compose.yml").exists()

        # Check config contains production settings
        config_content = (temp_dir / ".cleverclaude" / "config.yaml").read_text()
        assert "production" in config_content

    async def test_init_command_force_overwrite(self, temp_dir: Path):
        """Test init command with force overwrite."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        # Create existing files
        existing_file = temp_dir / "existing.txt"
        existing_file.write_text("existing content")

        init_cmd = InitCommand(console, logger)

        # Should succeed with force=True
        await init_cmd.execute(directory=temp_dir, template="default", force=True)

        assert (temp_dir / ".cleverclaude").exists()

    async def test_init_command_non_empty_directory_without_force(self, temp_dir: Path):
        """Test init command fails on non-empty directory without force."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        # Create existing file
        (temp_dir / "existing.txt").write_text("content")

        init_cmd = InitCommand(console, logger)

        # Should raise error without force
        with pytest.raises(RuntimeError, match="not empty"):
            await init_cmd.execute(directory=temp_dir, template="default", force=False)

    def test_init_config_templates(self):
        """Test configuration template generation."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        init_cmd = InitCommand(console, logger)

        # Test default template
        default_config = init_cmd._get_config_template("default")
        assert "development" in default_config
        assert "debug: true" in default_config

        # Test production template
        prod_config = init_cmd._get_config_template("production")
        assert "production" in prod_config
        assert "debug: false" in prod_config

    def test_init_example_generation(self):
        """Test example file generation."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        init_cmd = InitCommand(console, logger)

        # Test agent example
        agent_example = init_cmd._get_agent_example()
        assert "AgentManager" in agent_example
        assert "create_agent" in agent_example

        # Test swarm example
        swarm_example = init_cmd._get_swarm_example()
        assert "SwarmCoordinator" in swarm_example
        assert "add_agent" in swarm_example

        # Test task example
        task_example = init_cmd._get_task_example()
        assert "TaskOrchestrator" in task_example
        assert "execute_workflow" in task_example


@pytest.mark.unit
@pytest.mark.async_test
class TestStartCommand:
    """Test suite for start command."""

    async def test_start_command_basic(self, test_settings: Settings):
        """Test basic start command execution."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        with patch("cleverclaude.core.app.CleverClaudeApp") as mock_app_class:
            mock_app = AsyncMock()
            mock_app_class.return_value = mock_app

            start_cmd = StartCommand(console, logger)

            await start_cmd.execute(config_dir=None, port=8000, host="127.0.0.1", daemon=False)

            mock_app.initialize.assert_called_once()
            mock_app.start.assert_called_once()

    async def test_start_command_with_config_dir(self, temp_dir: Path):
        """Test start command with custom config directory."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        # Create config directory
        config_dir = temp_dir / ".cleverclaude"
        config_dir.mkdir()

        with patch("cleverclaude.core.app.CleverClaudeApp") as mock_app_class:
            mock_app = AsyncMock()
            mock_app_class.return_value = mock_app

            start_cmd = StartCommand(console, logger)

            await start_cmd.execute(config_dir=config_dir, port=8080, host="0.0.0.0", daemon=False)

            mock_app.initialize.assert_called_once()
            # Verify config directory was set
            call_args = mock_app_class.call_args
            assert call_args is not None

    async def test_start_command_daemon_mode(self):
        """Test start command in daemon mode."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        with patch("cleverclaude.core.app.CleverClaudeApp") as mock_app_class:
            mock_app = AsyncMock()
            mock_app_class.return_value = mock_app

            with patch("cleverclaude.cli.commands.start.start_daemon") as mock_daemon:
                start_cmd = StartCommand(console, logger)

                await start_cmd.execute(config_dir=None, port=8000, host="127.0.0.1", daemon=True)

                mock_daemon.assert_called_once()

    async def test_start_command_error_handling(self):
        """Test start command error handling."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        with patch("cleverclaude.core.app.CleverClaudeApp") as mock_app_class:
            mock_app = AsyncMock()
            mock_app.initialize.side_effect = Exception("Initialization failed")
            mock_app_class.return_value = mock_app

            start_cmd = StartCommand(console, logger)

            with pytest.raises(Exception, match="Initialization failed"):
                await start_cmd.execute(config_dir=None, port=8000, host="127.0.0.1", daemon=False)


@pytest.mark.unit
@pytest.mark.async_test
class TestStatusCommand:
    """Test suite for status command."""

    async def test_status_command_basic(self):
        """Test basic status command execution."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        mock_status = {
            "system": {"status": "running", "uptime": "00:15:23", "version": "2.0.0"},
            "agents": {"total": 5, "active": 4, "busy": 1},
            "swarms": {"total": 2, "active": 2},
            "performance": {"cpu_usage": 25.5, "memory_usage": 512.3, "tasks_completed": 142},
        }

        with patch("cleverclaude.cli.commands.status.get_system_status") as mock_get_status:
            mock_get_status.return_value = mock_status

            status_cmd = StatusCommand(console, logger)

            result = await status_cmd.execute(format="table", watch=False, interval=5)

            assert result is not None
            mock_get_status.assert_called_once()

    async def test_status_command_json_format(self):
        """Test status command with JSON format."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        mock_status = {"system": {"status": "running"}, "agents": {"total": 3}, "swarms": {"total": 1}}

        with patch("cleverclaude.cli.commands.status.get_system_status") as mock_get_status:
            mock_get_status.return_value = mock_status

            status_cmd = StatusCommand(console, logger)

            result = await status_cmd.execute(format="json", watch=False, interval=5)

            assert result == mock_status

    async def test_status_command_watch_mode(self):
        """Test status command in watch mode."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        mock_status = {"system": {"status": "running"}}

        call_count = 0

        def mock_get_status():
            nonlocal call_count
            call_count += 1
            if call_count >= 3:  # Stop after 3 calls
                raise KeyboardInterrupt()
            return mock_status

        with (
            patch("cleverclaude.cli.commands.status.get_system_status", side_effect=mock_get_status),
            patch("asyncio.sleep") as mock_sleep,
        ):
            status_cmd = StatusCommand(console, logger)

            with pytest.raises(KeyboardInterrupt):
                await status_cmd.execute(format="table", watch=True, interval=1)

            assert call_count == 3
            assert mock_sleep.call_count >= 2  # Should have slept between calls

    async def test_status_command_service_unavailable(self):
        """Test status command when service is unavailable."""
        import structlog
        from rich.console import Console

        console = Console()
        logger = structlog.get_logger()

        with patch("cleverclaude.cli.commands.status.get_system_status") as mock_get_status:
            mock_get_status.side_effect = ConnectionError("Service unavailable")

            status_cmd = StatusCommand(console, logger)

            result = await status_cmd.execute(format="table", watch=False, interval=5)

            assert result["system"]["status"] == "unavailable"


@pytest.mark.unit
class TestCLIIntegration:
    """Integration tests for CLI commands."""

    def test_full_cli_workflow(self, temp_dir):
        """Test full CLI workflow: init -> start -> status."""
        runner = CliRunner()

        # Test init command
        with runner.isolated_filesystem():
            result = runner.invoke(app, ["init", "--dir", str(temp_dir), "--template", "default"])
            assert result.exit_code == 0
            assert "initialized successfully" in result.output

        # Mock the start command to avoid actually starting services
        with patch("cleverclaude.core.app.CleverClaudeApp"):
            result = runner.invoke(app, ["start", "--config-dir", str(temp_dir / ".cleverclaude")])
            # This would normally start the app, but we're mocking it

    def test_cli_error_handling(self):
        """Test CLI error handling for invalid arguments."""
        runner = CliRunner()

        # Test init with invalid template
        result = runner.invoke(app, ["init", "--template", "invalid_template"])
        # Should handle gracefully

        # Test start with invalid port
        result = runner.invoke(app, ["start", "--port", "invalid_port"])
        assert result.exit_code != 0

        # Test status with invalid format
        result = runner.invoke(app, ["status", "--format", "invalid_format"])
        assert result.exit_code != 0

    def test_cli_with_environment_variables(self, monkeypatch):
        """Test CLI behavior with environment variables."""
        runner = CliRunner()

        # Set environment variables
        monkeypatch.setenv("CLEVERCLAUDE_API_HOST", "192.168.1.100")
        monkeypatch.setenv("CLEVERCLAUDE_API_PORT", "9000")

        # Test that environment variables are respected
        with patch("cleverclaude.core.app.CleverClaudeApp"):
            runner.invoke(app, ["start"])

            # Should use environment variables for config
            # This would be verified in the actual app initialization

    def test_cli_config_file_precedence(self, temp_dir):
        """Test configuration file precedence over defaults."""
        runner = CliRunner()

        # Create config file
        config_dir = temp_dir / ".cleverclaude"
        config_dir.mkdir()
        config_file = config_dir / "config.yaml"
        config_file.write_text("""
app:
  name: "Custom CleverClaude"
  environment: "testing"
api:
  host: "custom.host.com"
  port: 7777
""")

        with patch("cleverclaude.core.app.CleverClaudeApp"):
            runner.invoke(app, ["start", "--config-dir", str(config_dir)])

            # Should use config file values
            # This would be verified in the settings loading