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path: root/ui/lib/apiServer.js
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import axios from 'axios';

import * as r from './retry.js';

export const apiServer = axios.create({
  baseURL: '/api/',
});

export async function boot() {
  return apiServer.get('/boot').catch(responseError);
}

export async function setup(name, password) {
  return await apiServer.post('/setup', { name, password }).catch(responseError);
}

export async function logIn(name, password) {
  return await apiServer.post('/auth/login', { name, password }).catch(responseError);
}

export async function logOut() {
  return await apiServer.post('/auth/logout', {}).catch(responseError);
}

export async function changePassword(password, to) {
  return await apiServer.post('/password', { password, to }).catch(responseError);
}

export async function createConversation(name) {
  return await apiServer.post('/conversations', { name }).catch(responseError);
}

export async function sendToConversation(conversationId, body) {
  return await apiServer.post(`/conversations/${conversationId}`, { body }).catch(responseError);
}

export async function deleteMessage(messageId) {
  return await apiServer.delete(`/messages/${messageId}`, {}).catch(responseError);
}

export async function createInvite() {
  return await apiServer.post(`/invite`, {}).catch(responseError);
}

export async function getInvite(inviteId) {
  return await apiServer.get(`/invite/${inviteId}`).catch(responseError);
}

export async function acceptInvite(inviteId, name, password) {
  return apiServer.post(`/invite/${inviteId}`, { name, password }).catch(responseError);
}

export async function createPushSubscription(data) {
  return await apiServer.post('/push/subscribe', { data }).catch(responseError);
}

export async function deletePushSubscription(data) {
  return await apiServer.delete('/push', { data }).catch(responseError);
}

export async function notifyMe() {
  // TODO: this is the big "missing on the server" endpoint we need to make a
  // minimal notifications setup.
  return await apiServer.post('/notifyMe').catch(responseError);
}

export function subscribeToEvents(resumePoint) {
  const eventsUrl = apiServer.getUri({
    url: '/events',
    params: {
      resume_point: resumePoint,
    },
  });
  return new EventSource(eventsUrl);
}

export class LoggedOut extends Error {}

export class SetupRequired extends Error {}

export async function retry(op) {
  return await r.retry(op, isRetryable, r.timedDelay(5000));
}

function responseError(err) {
  if (err.response) {
    switch (err.response.status) {
      case 401:
        throw new LoggedOut();
      case 503:
        throw new SetupRequired();
    }
  }
  throw err;
}

function isRetryable(err) {
  // See <https://axios-http.com/docs/handling_errors> for a breakdown of this logic.

  // Any error with a response is non-retryable. The server responded; we get to act on that
  // response. We don't do anything special for 5xx-series responses yet, but they might one day be
  // retryable too.
  if (err.response) {
    return false;
  }

  // Any error with no response and a request is probably from the network side of things, and is
  // retryable.
  if (err.request) {
    return true;
  }

  // Anything with neither is unexpected enough that we should not try it.
  return false;
}