from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select
from pydantic import BaseModel, ConfigDict
from typing import List, Optional
import uuid

from app.core.database import get_db
from app.models.system import System
from app.api import deps 

router = APIRouter()

class SystemBase(BaseModel):
    name: str
    description: Optional[str] = None
    is_active: bool = True
    
class SystemCreate(SystemBase):
    pass

class SystemUpdate(SystemBase):
    name: Optional[str] = None
    description: Optional[str] = None
    is_active: Optional[bool] = None

class SystemResponse(SystemBase):
    id: uuid.UUID
    
    model_config = ConfigDict(from_attributes=True)

@router.get("/", response_model=List[SystemResponse])
async def read_systems(
    skip: int = 0, 
    limit: int = 100, 
    db: AsyncSession = Depends(get_db),
    current_user = Depends(deps.get_current_active_superuser)
):
    query = select(System).offset(skip).limit(limit)
    result = await db.execute(query)
    return result.scalars().all()

@router.post("/", response_model=SystemResponse)
async def create_system(
    system: SystemCreate, 
    db: AsyncSession = Depends(get_db),
    current_user = Depends(deps.get_current_active_superuser)
):
    db_system = System(**system.model_dump())
    db.add(db_system)
    await db.commit()
    await db.refresh(db_system)
    return db_system