from fastapi import APIRouter, Depends
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select
from app.core.database import get_db
from app.models.system_config import SystemConfig

router = APIRouter(prefix="/settings", tags=["系统设置"])


@router.get("")
async def get_all_settings(db: AsyncSession = Depends(get_db)):
    result = await db.execute(select(SystemConfig))
    configs = result.scalars().all()
    return {c.key: c.value for c in configs}


@router.put("/{key}")
async def update_setting(key: str, body: dict, db: AsyncSession = Depends(get_db)):
    result = await db.execute(select(SystemConfig).where(SystemConfig.key == key))
    config = result.scalar_one_or_none()

    value = body.get("value", "")
    description = body.get("description", "")

    if config:
        config.value = value
        if description:
            config.description = description
    else:
        config = SystemConfig(key=key, value=value, description=description)
        db.add(config)

    await db.flush()
    return {"key": key, "value": value}