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

from __future__ import annotations

import uuid

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

from app.core.db import get_db
from app.deps import require_permission
from app.schemas.system_settings import SystemSettingsResponse, SystemSettingsUpsert
from app.services import system_settings_service

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


@router.get("", response_model=SystemSettingsResponse)
async def get_system_settings(
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("settings:read")),
):
    """Get system settings for the current tenant.

    Sensitive fields (tax_number, iban, bic) are masked for non-admin users.
    """
    tenant_id = uuid.UUID(current_user["tenant_id"])
    result = await system_settings_service.get_system_settings(db, tenant_id)
    if result is None:
        return SystemSettingsResponse()

    # Mask sensitive fields for non-admin users
    if not current_user.get("is_system_admin"):
        if hasattr(result, "tax_number") and result.tax_number:
            result.tax_number = "********"
        if hasattr(result, "iban") and result.iban:
            result.iban = "********"
        if hasattr(result, "bic") and result.bic:
            result.bic = "********"

    return result


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


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