import axios, {
  AxiosError,
  AxiosRequestConfig,
  AxiosResponse,
  AxiosResponseHeaders,
  InternalAxiosRequestConfig,
  RawAxiosResponseHeaders,
  ResponseType,
} from "axios";

import { apiBaseUrl } from "../constants";
import { queryClient } from "@/main";

export interface IAxiosParams {
  method: AxiosRequestConfig["method"];
  url: string;
  params?: AxiosRequestConfig["params"];
  data?: AxiosRequestConfig["data"];
  headers?: AxiosRequestConfig["headers"];
  responseType?: ResponseType | undefined;
  notCauseError?: boolean;
  signal?: AbortSignal;
}

export interface IQueryErrorResponse {
  error: {
    status: unknown;
    data: unknown;
    headers?: RawAxiosResponseHeaders | AxiosResponseHeaders;
    notCauseError?: boolean;
  };
}

export interface GenericIdentityFn<Type> {
  data: Type;
  headers?: RawAxiosResponseHeaders | AxiosResponseHeaders;
}

/**
 * Инстанс аксиоса
 */
export const instance = axios.create({
  baseURL: apiBaseUrl ? `${apiBaseUrl}` : "",
  timeout: 600000,
});

/**
 * Интерцептор на запрос
 */
const requestInterceptors = (req: InternalAxiosRequestConfig) => {
  return req;
};

/**
 * Интерцептор на успешный ответ сервера
 */
const successInterceptors = (response: AxiosResponse) => response;

/**
 * Интерцептор на ошибку сервера
 */
const errorInterceptors = async (error: AxiosError) => {
  const message = error.message;
  if (!axios.isCancel(error) && !message.includes("409")) {
    alert(`${message} Произошла ошибка`);
  }

  if (message.includes("409")) {
    console.log("409");
    queryClient.invalidateQueries({ queryKey: ["processing"] });
  }

  return Promise.reject(error);
};

instance.interceptors.request.use(requestInterceptors);
instance.interceptors.response.use(successInterceptors, errorInterceptors);

export const query = async <T>(
  { url, signal, ...requestOptions }: IAxiosParams,
  baseUrl = apiBaseUrl
): Promise<GenericIdentityFn<T> | IQueryErrorResponse> => {
  const controller = new AbortController();
  const requestSignal = signal || controller.signal;

  try {
    console.log("Попытка отправки запроса");
    const result = await instance({
      url: `${baseUrl}${url}`,
      signal: requestSignal,
      ...requestOptions,
    });
    console.log("Запрос отправлен, результат:", result);
    return { data: result.data as T, headers: result.headers };
  } catch (axiosError) {
    if (axios.isCancel(axiosError)) {
      console.log("Запрос отменен");
      return {
        error: {
          status: "Cancelled",
          data: "Request was cancelled",
          notCauseError: true,
        },
      };
    }
    const err = axiosError as AxiosError;
    console.log("Ошибка при отправке запроса");

    return {
      error: {
        status: err.response?.status,
        data: err.response?.data,
        headers: err.response?.headers,
      },
    };
  } finally {
    if (!signal) {
      controller.abort();
    }
  }
};