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/* eslint-disable @typescript-eslint/no-explicit-any */
import axios, { AxiosRequestConfig, AxiosError } from 'axios';
import { setTokenHeader } from './headers-helpers';
import * as endpoints from './api-endpoints';

async function _get<T>(url: string, options?: AxiosRequestConfig): Promise<T> {
  const response = await axios.get(url, { ...options });
  return response.data;
}

async function _getResponse<T>(url: string, options?: AxiosRequestConfig): Promise<T> {
  return await axios.get(url, { ...options });
}

async function _post(url: string, data?: any) {
  const response = await axios.post(url, JSON.stringify(data), {
    headers: { 'Content-Type': 'application/json' },
  });
  return response.data;
}

async function _postMultiPart(url: string, formData: FormData, options?: AxiosRequestConfig) {
  const response = await axios.post(url, formData, {
    ...options,
    headers: { 'Content-Type': 'multipart/form-data' },
  });
  return response.data;
}

async function _postTTS(url: string, formData: FormData, options?: AxiosRequestConfig) {
  const response = await axios.post(url, formData, {
    ...options,
    headers: { 'Content-Type': 'multipart/form-data' },
    responseType: 'arraybuffer',
  });
  return response.data;
}

async function _put(url: string, data?: any) {
  const response = await axios.put(url, JSON.stringify(data), {
    headers: { 'Content-Type': 'application/json' },
  });
  return response.data;
}

async function _delete<T>(url: string): Promise<T> {
  const response = await axios.delete(url);
  return response.data;
}

async function _deleteWithOptions<T>(url: string, options?: AxiosRequestConfig): Promise<T> {
  const response = await axios.delete(url, { ...options });
  return response.data;
}

async function _patch(url: string, data?: any) {
  const response = await axios.patch(url, JSON.stringify(data), {
    headers: { 'Content-Type': 'application/json' },
  });
  return response.data;
}

let isRefreshing = false;
let failedQueue: { resolve: (value?: any) => void; reject: (reason?: any) => void }[] = [];

const refreshToken = (retry?: boolean) => _post(endpoints.refreshToken(retry));

const processQueue = (error: AxiosError | null, token: string | null = null) => {
  failedQueue.forEach((prom) => {
    if (error) {
      prom.reject(error);
    } else {
      prom.resolve(token);
    }
  });
  failedQueue = [];
};

axios.interceptors.response.use(
  (response) => response,
  async (error) => {
    const originalRequest = error.config;

    if (error.response.status === 401 && !originalRequest._retry) {
      originalRequest._retry = true;

      if (isRefreshing) {
        try {
          const token = await new Promise((resolve, reject) => {
            failedQueue.push({ resolve, reject });
          });
          originalRequest.headers['Authorization'] = 'Bearer ' + token;
          return await axios(originalRequest);
        } catch (err) {
          return Promise.reject(err);
        }
      }

      isRefreshing = true;

      try {
        const { token } = await refreshToken(
          // Handle edge case where we get a blank screen if the initial 401 error is from a refresh token request
          originalRequest.url?.includes('api/auth/refresh') ? true : false,
        );

        if (token) {
          originalRequest.headers['Authorization'] = 'Bearer ' + token;
          setTokenHeader(token);
          window.dispatchEvent(new CustomEvent('tokenUpdated', { detail: token }));
          processQueue(null, token);
          return await axios(originalRequest);
        } else {
          window.location.href = '/login';
        }
      } catch (err) {
        processQueue(err as AxiosError, null);
        return Promise.reject(err);
      } finally {
        isRefreshing = false;
      }
    }

    return Promise.reject(error);
  },
);

export default {
  get: _get,
  getResponse: _getResponse,
  post: _post,
  postMultiPart: _postMultiPart,
  postTTS: _postTTS,
  put: _put,
  delete: _delete,
  deleteWithOptions: _deleteWithOptions,
  patch: _patch,
  refreshToken,
};