"""
API routes for user settings.
"""
from fastapi import APIRouter, HTTPException, Depends
from sqlalchemy.orm import Session
from pydantic import BaseModel
from typing import Optional

from app.database.connection import get_db
from app.database.models import User
from app.middleware.auth import get_current_user
from app.services.settings_service import settings_service


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


class ProfileUpdateRequest(BaseModel):
    """Request schema for profile updates."""
    bio: Optional[str] = None
    phone: Optional[str] = None
    company: Optional[str] = None


class AppearanceUpdateRequest(BaseModel):
    """Request schema for appearance updates."""
    theme: str  # light, dark, system


class NotificationUpdateRequest(BaseModel):
    """Request schema for notification updates."""
    email_notifications: Optional[bool] = None
    update_notifications: Optional[bool] = None


@router.get("")
async def get_settings(
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user)
):
    """
    Get current user settings.
    
    Returns:
        User settings including profile, appearance, and notifications
    """
    try:
        settings = settings_service.get_or_create_settings(db, current_user.id)
        
        return {
            "profile": {
                "name": current_user.name,
                "email": current_user.email,
                "bio": settings.bio,
                "phone": settings.phone,
                "company": settings.company
            },
            "appearance": {
                "theme": settings.theme
            },
            "notifications": {
                "email_notifications": bool(settings.email_notifications),
                "update_notifications": bool(settings.update_notifications)
            }
        }
        
    except Exception as e:
        print(f"Error getting settings: {e}")
        raise HTTPException(status_code=500, detail="Error retrieving settings")


@router.patch("/profile")
async def update_profile(
    request: ProfileUpdateRequest,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user)
):
    """
    Update user profile settings.
    
    Args:
        request: Profile update data
        
    Returns:
        Updated profile settings
    """
    try:
        settings = settings_service.update_profile(
            db,
            current_user.id,
            bio=request.bio,
            phone=request.phone,
            company=request.company
        )
        
        return {
            "success": True,
            "profile": {
                "bio": settings.bio,
                "phone": settings.phone,
                "company": settings.company
            }
        }
        
    except Exception as e:
        print(f"Error updating profile: {e}")
        raise HTTPException(status_code=500, detail="Error updating profile")


@router.patch("/appearance")
async def update_appearance(
    request: AppearanceUpdateRequest,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user)
):
    """
    Update appearance settings.
    
    Args:
        request: Appearance update data
        
    Returns:
        Updated appearance settings
    """
    try:
        settings = settings_service.update_appearance(
            db,
            current_user.id,
            theme=request.theme
        )
        
        return {
            "success": True,
            "appearance": {
                "theme": settings.theme
            }
        }
        
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        print(f"Error updating appearance: {e}")
        raise HTTPException(status_code=500, detail="Error updating appearance")


@router.patch("/notifications")
async def update_notifications(
    request: NotificationUpdateRequest,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user)
):
    """
    Update notification settings.
    
    Args:
        request: Notification update data
        
    Returns:
        Updated notification settings
    """
    try:
        settings = settings_service.update_notifications(
            db,
            current_user.id,
            email_notifications=request.email_notifications,
            update_notifications=request.update_notifications
        )
        
        return {
            "success": True,
            "notifications": {
                "email_notifications": bool(settings.email_notifications),
                "update_notifications": bool(settings.update_notifications)
            }
        }
        
    except Exception as e:
        print(f"Error updating notifications: {e}")
        raise HTTPException(status_code=500, detail="Error updating notifications")