"""System settings routes — get and upsert (admin only)."""

from __future__ import annotations

import uuid

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

from app.core.auth import check_permission
from app.core.db import get_db
from app.deps import get_current_user
from app.schemas.system_settings import SystemSettingsUpsert
from app.services import system_settings_service

router = APIRouter(prefix="/api/v1/system-settings", tags=["system-settings"])


@router.get("")
async def get_system_settings(
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(get_current_user),
):
    """Get system settings for the current tenant."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    result = await system_settings_service.get_system_settings(db, tenant_id)
    if result is None:
        return {}
    return result


@router.put("")
async def upsert_system_settings(
    body: SystemSettingsUpsert,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(get_current_user),
):
    """Upsert system settings. Requires admin permission."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    role = current_user.get("role", "viewer")

    if not check_permission(role, "settings", "update"):
        raise HTTPException(
            status_code=status.HTTP_403_FORBIDDEN,
            detail={"detail": "Insufficient permissions", "code": "forbidden"},
        )

    data = body.model_dump()
    return await system_settings_service.upsert_system_settings(db, tenant_id, user_id, data)