"""
Housekeeper tools for PydanticAI agent.

These tools wrap the core-api service and are registered with
The Housekeeper agent for home automation tasks.
"""

from src.agents.housekeeper.client import CoreAPIClient
from src.core.logging_config import get_logger

logger = get_logger(__name__)


# ============================================================================
# Device Discovery
# ============================================================================


async def list_devices(
    domain: str | None = None,
    area: str | None = None,
) -> str:
    """
    List available devices in the smart home.

    Use this to discover what devices can be controlled.
    Can filter by domain (device type) or area (room).

    Args:
        domain: Device type filter (light, switch, climate, cover, fan, etc.)
        area: Room/area filter (living_room, bedroom, kitchen, etc.)

    Returns:
        List of devices with their current states

    Examples:
        list_devices()  # All devices
        list_devices(domain="light")  # Only lights
        list_devices(area="living_room")  # Living room devices
    """
    try:
        async with CoreAPIClient() as client:
            devices = await client.list_devices(domain=domain, area=area)

            if not devices:
                filters = []
                if domain:
                    filters.append(f"domain={domain}")
                if area:
                    filters.append(f"area={area}")
                filter_str = f" with filters: {', '.join(filters)}" if filters else ""
                return f"No devices found{filter_str}"

            # Group by domain for readability
            by_domain: dict[str, list] = {}
            for device in devices:
                by_domain.setdefault(device.domain, []).append(device)

            output_parts = ["## Smart Home Devices\n"]

            for dom, dom_devices in sorted(by_domain.items()):
                output_parts.append(f"### {dom.title()}s")

                # Sort devices: room groups first (using Home Assistant's is_hue_group attribute)
                def is_room_group(d: object) -> bool:
                    """Check if device is a room group based on HA attributes."""
                    attrs = getattr(d, "attributes", {})
                    # Check for Hue room groups
                    if attrs.get("is_hue_group") and attrs.get("hue_type") == "room":
                        return True
                    # Check for other group indicators (icon or entity_id list)
                    if "entity_id" in attrs and isinstance(attrs["entity_id"], list):
                        return True
                    return False

                sorted_devices = sorted(
                    dom_devices, key=lambda d: (not is_room_group(d), d.entity_id)
                )

                for device in sorted_devices:
                    state_icon = (
                        "on"
                        if device.state == "on"
                        else "off"
                        if device.state == "off"
                        else device.state
                    )
                    area_str = f" ({device.area})" if device.area else ""
                    # Mark room groups clearly using actual HA data
                    group_marker = " [ROOM GROUP]" if is_room_group(device) else ""
                    output_parts.append(
                        f"- **{device.name}**{area_str}{group_marker}: {state_icon}"
                    )
                    output_parts.append(f"  ID: `{device.entity_id}`")
                output_parts.append("")

            logger.info("housekeeper_list_devices", count=len(devices))
            return "\n".join(output_parts)

    except Exception as e:
        logger.error("housekeeper_list_devices_error", error=str(e))
        return f"Error listing devices: {str(e)}"


async def list_areas() -> str:
    """
    List all areas/rooms in the smart home.

    Use this to discover what rooms/areas are configured in Home Assistant.
    Useful before filtering devices by area.

    Returns:
        List of areas with device counts

    Examples:
        list_areas()  # See all rooms/areas
    """
    try:
        async with CoreAPIClient() as client:
            areas = await client.list_areas()

            if not areas:
                return "No areas found in Home Assistant"

            output_parts = ["## Smart Home Areas\n"]

            for area in sorted(areas, key=lambda a: a.name):
                device_str = f" ({area.device_count} devices)" if area.device_count else ""
                output_parts.append(f"- **{area.name}**{device_str}")
                output_parts.append(f"  ID: `{area.area_id}`")

            output_parts.append("")
            output_parts.append(f"*{len(areas)} areas total*")

            logger.info("housekeeper_list_areas", count=len(areas))
            return "\n".join(output_parts)

    except Exception as e:
        logger.error("housekeeper_list_areas_error", error=str(e))
        return f"Error listing areas: {str(e)}"


async def get_device_state(entity_id: str) -> str:
    """
    Get the current state and attributes of a specific device.

    Use this to check a device's detailed status before or after control.

    Args:
        entity_id: The device entity ID (e.g., light.living_room, switch.coffee_maker)

    Returns:
        Detailed device state including all attributes

    Examples:
        get_device_state("light.living_room")
        get_device_state("climate.bedroom")
    """
    try:
        async with CoreAPIClient() as client:
            state = await client.get_device_state(entity_id)

            output_parts = [
                f"## Device: {entity_id}",
                f"**State:** {state.state}",
            ]

            if state.last_changed:
                output_parts.append(f"**Last Changed:** {state.last_changed}")

            if state.attributes:
                output_parts.append("\n**Attributes:**")
                for key, value in state.attributes.items():
                    if key not in ("friendly_name", "entity_id"):
                        output_parts.append(f"- {key}: {value}")

            return "\n".join(output_parts)

    except Exception as e:
        logger.error("housekeeper_get_state_error", error=str(e), entity_id=entity_id)
        return f"Error getting state for {entity_id}: {str(e)}"


# ============================================================================
# Device Control
# ============================================================================


async def turn_on(
    entity_id: str,
    brightness: int | None = None,
    color_temp: int | None = None,
) -> str:
    """
    Turn on a device. Use the entity_id parameter with the EXACT value from list_devices.

    For lights, can optionally set brightness and color temperature.

    Args:
        entity_id: The EXACT entity ID from list_devices including domain prefix.
        brightness: Optional brightness for lights (0-255, where 255 is full brightness)
        color_temp: Optional color temperature in Kelvin (2700=warm, 6500=cool)

    Returns:
        Confirmation of the action

    Examples:
        turn_on(entity_id="light.living_room")
        turn_on(entity_id="light.bedroom", brightness=128)
        turn_on(entity_id="switch.coffee_maker")
    """
    try:
        async with CoreAPIClient() as client:
            result = await client.turn_on(
                entity_id=entity_id,
                brightness=brightness,
                color_temp=color_temp,
            )

            if result.success:
                extras = []
                if brightness is not None:
                    extras.append(f"brightness {brightness}/255")
                if color_temp is not None:
                    extras.append(f"color temp {color_temp}K")

                extra_str = f" ({', '.join(extras)})" if extras else ""
                return f"Turned on {entity_id}{extra_str}"
            else:
                return f"Failed to turn on {entity_id}: {result.message}"

    except Exception as e:
        logger.error("housekeeper_turn_on_error", error=str(e), entity_id=entity_id)
        return f"Error turning on {entity_id}: {str(e)}"


async def turn_off(entity_id: str) -> str:
    """
    Turn off a device. Use the entity_id parameter with the EXACT value from list_devices.

    Args:
        entity_id: The EXACT entity ID from list_devices including domain prefix.

    Returns:
        Confirmation of the action

    Examples:
        turn_off(entity_id="light.living_room")
        turn_off(entity_id="switch.coffee_maker")
        turn_off(entity_id="light.kitchen")
    """
    try:
        async with CoreAPIClient() as client:
            result = await client.turn_off(entity_id=entity_id)

            if result.success:
                return f"Turned off {entity_id}"
            else:
                return f"Failed to turn off {entity_id}: {result.message}"

    except Exception as e:
        logger.error("housekeeper_turn_off_error", error=str(e), entity_id=entity_id)
        return f"Error turning off {entity_id}: {str(e)}"


async def toggle(entity_id: str) -> str:
    """
    Toggle a device's state (on becomes off, off becomes on).

    Use the entity_id parameter with the EXACT value from list_devices.

    Args:
        entity_id: The EXACT entity ID from list_devices including domain prefix.

    Returns:
        Confirmation with the new state

    Examples:
        toggle(entity_id="light.living_room")
        toggle(entity_id="switch.fan")
    """
    try:
        async with CoreAPIClient() as client:
            result = await client.toggle(entity_id=entity_id)

            if result.success:
                return f"Toggled {entity_id}"
            else:
                return f"Failed to toggle {entity_id}: {result.message}"

    except Exception as e:
        logger.error("housekeeper_toggle_error", error=str(e), entity_id=entity_id)
        return f"Error toggling {entity_id}: {str(e)}"


# ============================================================================
# Scenes
# ============================================================================


async def list_scenes() -> str:
    """
    List all available scenes.

    Scenes are pre-configured combinations of device states.

    Returns:
        List of available scenes

    Examples:
        list_scenes()
    """
    try:
        async with CoreAPIClient() as client:
            scenes = await client.list_scenes()

            if not scenes:
                return "No scenes found"

            output_parts = ["## Available Scenes\n"]
            for scene in scenes:
                name = scene.friendly_name or scene.name
                output_parts.append(f"- **{name}**")
                output_parts.append(f"  ID: `{scene.entity_id}`")

            logger.info("housekeeper_list_scenes", count=len(scenes))
            return "\n".join(output_parts)

    except Exception as e:
        logger.error("housekeeper_list_scenes_error", error=str(e))
        return f"Error listing scenes: {str(e)}"


async def activate_scene(scene_id: str) -> str:
    """
    Activate a scene.

    This sets all devices in the scene to their configured states.

    Args:
        scene_id: Scene entity ID (e.g., scene.movie_night, scene.good_morning)

    Returns:
        Confirmation of activation

    Examples:
        activate_scene("scene.movie_night")
        activate_scene("scene.good_morning")
    """
    try:
        async with CoreAPIClient() as client:
            result = await client.activate_scene(scene_id=scene_id)

            if result.success:
                return f"Activated scene: {scene_id}"
            else:
                return f"Failed to activate {scene_id}: {result.message}"

    except Exception as e:
        logger.error("housekeeper_activate_scene_error", error=str(e), scene_id=scene_id)
        return f"Error activating scene {scene_id}: {str(e)}"


# ============================================================================
# Scripts
# ============================================================================


async def list_scripts() -> str:
    """
    List all available automation scripts.

    Scripts are sequences of actions that can be triggered manually.

    Returns:
        List of available scripts

    Examples:
        list_scripts()
    """
    try:
        async with CoreAPIClient() as client:
            scripts = await client.list_scripts()

            if not scripts:
                return "No scripts found"

            output_parts = ["## Available Scripts\n"]
            for script in scripts:
                output_parts.append(f"- **{script.name}**")
                if script.description:
                    output_parts.append(f"  {script.description}")
                output_parts.append(f"  ID: `{script.entity_id}`")
                if script.last_triggered:
                    output_parts.append(f"  Last run: {script.last_triggered}")

            logger.info("housekeeper_list_scripts", count=len(scripts))
            return "\n".join(output_parts)

    except Exception as e:
        logger.error("housekeeper_list_scripts_error", error=str(e))
        return f"Error listing scripts: {str(e)}"


async def run_script(script_id: str) -> str:
    """
    Run an automation script.

    Args:
        script_id: Script entity ID (e.g., script.good_morning, script.bedtime)

    Returns:
        Confirmation of execution

    Examples:
        run_script("script.good_morning")
        run_script("script.all_lights_off")
    """
    try:
        async with CoreAPIClient() as client:
            result = await client.run_script(script_id=script_id)

            if result.success:
                return f"Running script: {script_id}"
            else:
                return f"Failed to run {script_id}: {result.message}"

    except Exception as e:
        logger.error("housekeeper_run_script_error", error=str(e), script_id=script_id)
        return f"Error running script {script_id}: {str(e)}"


# ============================================================================
# Automations
# ============================================================================


async def list_automations() -> str:
    """
    List all automations and their current states.

    Automations are event-triggered rules that run automatically.

    Returns:
        List of automations with enabled/disabled status

    Examples:
        list_automations()
    """
    try:
        async with CoreAPIClient() as client:
            automations = await client.list_automations()

            if not automations:
                return "No automations found"

            output_parts = ["## Automations\n"]

            # Group by state
            enabled = [a for a in automations if a.state == "on"]
            disabled = [a for a in automations if a.state != "on"]

            if enabled:
                output_parts.append("### Enabled")
                for auto in enabled:
                    output_parts.append(f"- **{auto.name}**")
                    output_parts.append(f"  ID: `{auto.entity_id}`")
                    if auto.last_triggered:
                        output_parts.append(f"  Last triggered: {auto.last_triggered}")
                output_parts.append("")

            if disabled:
                output_parts.append("### Disabled")
                for auto in disabled:
                    output_parts.append(f"- **{auto.name}**")
                    output_parts.append(f"  ID: `{auto.entity_id}`")

            logger.info("housekeeper_list_automations", count=len(automations))
            return "\n".join(output_parts)

    except Exception as e:
        logger.error("housekeeper_list_automations_error", error=str(e))
        return f"Error listing automations: {str(e)}"


async def toggle_automation(automation_id: str, enable: bool) -> str:
    """
    Enable or disable an automation.

    Args:
        automation_id: Automation entity ID
        enable: True to enable, False to disable

    Returns:
        Confirmation of the change

    Examples:
        toggle_automation("automation.morning_lights", enable=True)
        toggle_automation("automation.vacation_mode", enable=False)
    """
    try:
        async with CoreAPIClient() as client:
            result = await client.toggle_automation(
                automation_id=automation_id,
                enable=enable,
            )

            action = "Enabled" if enable else "Disabled"
            if result.success:
                return f"{action} automation: {automation_id}"
            else:
                return f"Failed to {action.lower()} {automation_id}: {result.message}"

    except Exception as e:
        logger.error(
            "housekeeper_toggle_automation_error",
            error=str(e),
            automation_id=automation_id,
        )
        return f"Error toggling automation {automation_id}: {str(e)}"


# ============================================================================
# History
# ============================================================================


async def get_history(entity_id: str, hours: int = 24) -> str:
    """
    Get the state history of a device.

    Useful for understanding patterns or troubleshooting.

    Args:
        entity_id: Device to get history for
        hours: Number of hours of history (default: 24)

    Returns:
        List of state changes over the time period

    Examples:
        get_history("light.living_room")
        get_history("climate.bedroom", hours=48)
    """
    try:
        async with CoreAPIClient() as client:
            history = await client.get_history(entity_id=entity_id, hours=hours)

            if not history:
                return f"No history found for {entity_id} in the last {hours} hours"

            output_parts = [f"## History: {entity_id}", f"*Last {hours} hours*\n"]

            for entry in history[-20:]:  # Show last 20 entries
                output_parts.append(f"- **{entry.timestamp}**: {entry.state}")

            if len(history) > 20:
                output_parts.append(f"\n*(showing last 20 of {len(history)} entries)*")

            return "\n".join(output_parts)

    except Exception as e:
        logger.error("housekeeper_get_history_error", error=str(e), entity_id=entity_id)
        return f"Error getting history for {entity_id}: {str(e)}"


# ============================================================================
# Tool Collection for Registration
# ============================================================================

# All tools available to The Housekeeper
HOUSEKEEPER_TOOLS = [
    # Discovery
    list_areas,
    list_devices,
    get_device_state,
    # Control
    turn_on,
    turn_off,
    toggle,
    # Scenes
    list_scenes,
    activate_scene,
    # Scripts
    list_scripts,
    run_script,
    # Automations
    list_automations,
    toggle_automation,
    # History
    get_history,
]