"""
Settings management views for the application.
"""

import logging
import inspect
from functools import wraps
from fastapi import Request, Depends, HTTPException, status
from fastapi.responses import RedirectResponse
from sqlalchemy.orm import Session

from app.views.base import APIRouter, templates, require_login, settings, get_db
from app.utils.settings_service import get_settings_by_category, get_setting_metadata, SETTING_METADATA
from app.utils.config_validator.masking import mask_sensitive_value

logger = logging.getLogger(__name__)
router = APIRouter()


def require_admin_access(func):
    """Decorator to require admin access for a route"""
    @wraps(func)
    async def wrapper(request: Request, *args, **kwargs):
        user = request.session.get("user")
        if not user or not user.get("is_admin"):
            logger.warning(f"Non-admin user attempted to access settings page")
            return RedirectResponse(url="/", status_code=status.HTTP_302_FOUND)
        
        # Check if the wrapped function is a coroutine function
        if inspect.iscoroutinefunction(func):
            return await func(request, *args, **kwargs)
        else:
            return func(request, *args, **kwargs)
    return wrapper


@router.get("/settings")
@require_login
@require_admin_access
async def settings_page(request: Request, db: Session = Depends(get_db)):
    """
    Settings management page - admin only.
    """
    
    try:
        # Get settings organized by category
        categories = get_settings_by_category()
        
        # Build settings data for display
        settings_data = {}
        for category, keys in categories.items():
            settings_data[category] = []
            for key in keys:
                # Get current value from settings
                value = getattr(settings, key, None)
                
                # Get metadata
                metadata = get_setting_metadata(key)
                
                # Mask sensitive values
                display_value = value
                if metadata.get("sensitive") and value:
                    display_value = mask_sensitive_value(value)
                
                settings_data[category].append({
                    "key": key,
                    "display_value": display_value if display_value is not None else "",
                    "metadata": metadata
                })
        
        return templates.TemplateResponse(
            "settings.html",
            {
                "request": request,
                "settings_data": settings_data,
                "app_version": settings.version
            }
        )
    except Exception as e:
        logger.error(f"Error loading settings page: {e}")
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail="Failed to load settings page"
        )