"""
Superadmin endpoints for device management.
"""

from typing import Annotated

from fastapi import APIRouter, Depends, HTTPException, Query, status
from sqlalchemy.ext.asyncio import AsyncSession

from app.api.deps import get_current_superadmin
from app.core.database import get_db
from app.models.user import User
from app.schemas.device import (
    DeviceCreate,
    DeviceListResponse,
    DeviceResponse,
    DeviceUpdate,
)
from app.services import device_service

router = APIRouter()


@router.get("", response_model=DeviceListResponse)
async def list_devices(
    db: Annotated[AsyncSession, Depends(get_db)],
    current_user: Annotated[User, Depends(get_current_superadmin)],
    skip: int = Query(0, ge=0, description="Number of records to skip"),
    limit: int = Query(100, ge=1, le=1000, description="Max records to return"),
    organization_id: int | None = Query(
        None, description="Filter by organization"
    ),
    status: str | None = Query(None, description="Filter by status"),
):
    """
    List all devices (superadmin only).

    Returns paginated list of devices with optional filters.
    """
    devices, total = await device_service.list_devices(
        db,
        skip=skip,
        limit=limit,
        organization_id=organization_id,
        status=status,
    )

    return DeviceListResponse(
        devices=devices,
        total=total,
    )


@router.get("/{device_id}", response_model=DeviceResponse)
async def get_device(
    device_id: int,
    db: Annotated[AsyncSession, Depends(get_db)],
    current_user: Annotated[User, Depends(get_current_superadmin)],
):
    """
    Get device by ID (superadmin only).
    """
    device = await device_service.get_device(db, device_id)

    if not device:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Device not found",
        )

    return device


@router.post(
    "", response_model=DeviceResponse, status_code=status.HTTP_201_CREATED
)
async def create_device(
    data: DeviceCreate,
    db: Annotated[AsyncSession, Depends(get_db)],
    current_user: Annotated[User, Depends(get_current_superadmin)],
):
    """
    Register a new device (superadmin only).

    Devices are assigned a unique simple_id (Receiver #1, #2, etc).
    """
    try:
        device = await device_service.create_device(db, data)
    except ValueError as e:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail=str(e),
        )

    return device


@router.patch("/{device_id}", response_model=DeviceResponse)
async def update_device(
    device_id: int,
    data: DeviceUpdate,
    db: Annotated[AsyncSession, Depends(get_db)],
    current_user: Annotated[User, Depends(get_current_superadmin)],
):
    """
    Update device (superadmin only).

    Can update device organization assignment, status, and configuration.
    """
    device = await device_service.update_device(db, device_id, data)

    if not device:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Device not found",
        )

    return device


@router.delete("/{device_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_device(
    device_id: int,
    db: Annotated[AsyncSession, Depends(get_db)],
    current_user: Annotated[User, Depends(get_current_superadmin)],
):
    """
    Delete device (superadmin only).

    Warning: This permanently deletes the device.
    """
    deleted = await device_service.delete_device(db, device_id)

    if not deleted:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Device not found",
        )