from functools import wraps

import httpx
from dogpile.cache import make_region

from settings import ADMIN_SECRET, AUTH_URL
from services.logger import root_logger as logger


async def request_data(gql, headers=None):
    if headers is None:
        headers = {"Content-Type": "application/json"}
    try:
        async with httpx.AsyncClient() as client:
            response = await client.post(AUTH_URL, json=gql, headers=headers)
            if response.status_code == 200:
                data = response.json()
                errors = data.get("errors")
                if errors:
                    logger.error(f"HTTP Errors: {errors}")
                else:
                    return data
    except Exception as e:
        # Handling and logging exceptions during authentication check
        logger.error(f"request_data error: {e}")
        return None


# Создание региона кэша с TTL 30 секунд
region = make_region().configure("dogpile.cache.memory", expiration_time=30)


# Функция-ключ для кэширования
def auth_cache_key(req):
    token = req.headers.get("Authorization")
    return f"auth_token:{token}"


# Декоратор для кэширования запроса проверки токена
def cache_auth_request(f):
    @wraps(f)
    async def decorated_function(*args, **kwargs):
        req = args[0]
        cache_key = auth_cache_key(req)
        result = region.get(cache_key)
        if result is None:
            [user_id, user_roles] = await f(*args, **kwargs)
            if user_id:
                region.set(cache_key, [user_id, user_roles])
        return result

    return decorated_function


# Измененная функция проверки аутентификации с кэшированием
@cache_auth_request
async def check_auth(req):
    token = req.headers.get("Authorization")
    user_id = ""
    user_roles = []
    if token:
        try:
            # Logging the authentication token
            logger.debug(f"{token}")
            query_name = "validate_jwt_token"
            operation = "ValidateToken"
            variables = {
                "params": {
                    "token_type": "access_token",
                    "token": token,
                }
            }

            gql = {
                "query": f"query {operation}($params: ValidateJWTTokenInput!)  {{ {query_name}(params: $params) {{ is_valid claims }} }}",
                "variables": variables,
                "operationName": operation,
            }
            data = await request_data(gql)
            if data:
                user_data = data.get("data", {}).get(query_name, {}).get("claims", {})
                user_id = user_data.get("sub")
                user_roles = user_data.get("allowed_roles")
        except Exception as e:
            import traceback

            traceback.print_exc()
            logger.error(e)

    # Возвращаем пустые значения, если не удалось получить user_id и user_roles
    return [user_id, user_roles]


async def add_user_role(user_id):
    logger.info(f"add author role for user_id: {user_id}")
    query_name = "_update_user"
    operation = "UpdateUserRoles"
    headers = {
        "Content-Type": "application/json",
        "x-authorizer-admin-secret": ADMIN_SECRET,
    }
    variables = {"params": {"roles": "author, reader", "id": user_id}}
    gql = {
        "query": f"mutation {operation}($params: UpdateUserInput!) {{ {query_name}(params: $params) {{ id roles }} }}",
        "variables": variables,
        "operationName": operation,
    }
    data = await request_data(gql, headers)
    if data:
        user_id = data.get("data", {}).get(query_name, {}).get("id")
        return user_id


def login_required(f):
    @wraps(f)
    async def decorated_function(*args, **kwargs):
        user_id = ""
        user_roles = []
        info = args[1]

        try:
            req = info.context.get("request")
            [user_id, user_roles] = await check_auth(req)
        except Exception as e:
            logger.error(f"Failed to authenticate user: {e}")
        if user_id:
            logger.info(f" got {user_id} roles: {user_roles}")
        info.context["user_id"] = user_id.strip()
        info.context["roles"] = user_roles
        return await f(*args, **kwargs)

    return decorated_function


def auth_request(f):
    @wraps(f)
    async def decorated_function(*args, **kwargs):
        user_id = ""
        user_roles = []
        req = {}
        try:
            req = args[0]
            [user_id, user_roles] = await check_auth(req)
        except Exception as e:
            import traceback

            traceback.print_exc()
            logger.error(f"Failed to authenticate user: {args} {e}")
        if user_id:
            logger.info(f" got {user_id} roles: {user_roles}")
        req["user_id"] = user_id.strip()
        req["roles"] = user_roles
        return await f(*args, **kwargs)

    return decorated_function