"""
Users Router - Proxy to User Service
"""
from fastapi import APIRouter, HTTPException, Depends
from typing import List, Optional
import httpx
from shared.config import settings
from shared.auth import get_current_user, get_current_admin
from shared.models.user import User, UserCreate, UserUpdate, UserResponse

router = APIRouter()

# User service URL
USER_SERVICE_URL = f"http://user-service:8002"


@router.get("/users/me", response_model=UserResponse)
async def get_current_user_info(
    current_user: User = Depends(get_current_user)
):
    """Get current user information"""
    try:
        async with httpx.AsyncClient() as client:
            response = await client.get(
                f"{USER_SERVICE_URL}/users/me",
                headers={"Authorization": f"Bearer {current_user.token}"}
            )
            response.raise_for_status()
            return response.json()
    except httpx.HTTPError as e:
        raise HTTPException(status_code=500, detail=f"User service error: {str(e)}")


@router.put("/users/me", response_model=UserResponse)
async def update_current_user(
    user_update: UserUpdate,
    current_user: User = Depends(get_current_user)
):
    """Update current user information"""
    try:
        async with httpx.AsyncClient() as client:
            response = await client.put(
                f"{USER_SERVICE_URL}/users/me",
                json=user_update.dict(exclude_unset=True),
                headers={"Authorization": f"Bearer {current_user.token}"}
            )
            response.raise_for_status()
            return response.json()
    except httpx.HTTPError as e:
        raise HTTPException(status_code=500, detail=f"User service error: {str(e)}")


@router.get("/users", response_model=List[UserResponse])
async def list_users(
    skip: int = 0,
    limit: int = 100,
    current_admin: User = Depends(get_current_admin)
):
    """List all users (admin only)"""
    try:
        async with httpx.AsyncClient() as client:
            response = await client.get(
                f"{USER_SERVICE_URL}/users",
                params={"skip": skip, "limit": limit},
                headers={"Authorization": f"Bearer {current_admin.token}"}
            )
            response.raise_for_status()
            return response.json()
    except httpx.HTTPError as e:
        raise HTTPException(status_code=500, detail=f"User service error: {str(e)}")


@router.get("/users/{user_id}", response_model=UserResponse)
async def get_user(
    user_id: str,
    current_admin: User = Depends(get_current_admin)
):
    """Get user by ID (admin only)"""
    try:
        async with httpx.AsyncClient() as client:
            response = await client.get(
                f"{USER_SERVICE_URL}/users/{user_id}",
                headers={"Authorization": f"Bearer {current_admin.token}"}
            )
            response.raise_for_status()
            return response.json()
    except httpx.HTTPError as e:
        raise HTTPException(status_code=500, detail=f"User service error: {str(e)}")


@router.put("/users/{user_id}", response_model=UserResponse)
async def update_user(
    user_id: str,
    user_update: UserUpdate,
    current_admin: User = Depends(get_current_admin)
):
    """Update user by ID (admin only)"""
    try:
        async with httpx.AsyncClient() as client:
            response = await client.put(
                f"{USER_SERVICE_URL}/users/{user_id}",
                json=user_update.dict(exclude_unset=True),
                headers={"Authorization": f"Bearer {current_admin.token}"}
            )
            response.raise_for_status()
            return response.json()
    except httpx.HTTPError as e:
        raise HTTPException(status_code=500, detail=f"User service error: {str(e)}")


@router.delete("/users/{user_id}")
async def delete_user(
    user_id: str,
    current_admin: User = Depends(get_current_admin)
):
    """Delete user by ID (admin only)"""
    try:
        async with httpx.AsyncClient() as client:
            response = await client.delete(
                f"{USER_SERVICE_URL}/users/{user_id}",
                headers={"Authorization": f"Bearer {current_admin.token}"}
            )
            response.raise_for_status()
            return {"message": "User deleted successfully"}
    except httpx.HTTPError as e:
        raise HTTPException(status_code=500, detail=f"User service error: {str(e)}")