git.r.bdr.sh - rbdr/forum/blob - src/stores/forums.js

   1 import { readable } from 'svelte/store';
   2
   3 const internals = {
   4
   5   // Constants
   6
   7   kChangeFeedEventName: 'changefeed:forums',
   8
   9   // The exported data structure
  10
  11   forums: [],
  12
  13   // Handles messages from the event
  14
  15   handleChangeFeed(data) {
  16
  17     // No old value == add
  18     if (!data.old_val) {
  19       return internals.forums.push(data.new_val);
  20     }
  21
  22     // We have an old value, let's find it.
  23     const index = internals.forums.findIndex((element) => element.id === data.old_val.id);
  24
  25     if (index > -1) {
  26       if (data.new_val) {
  27         return internals.forums.splice(index, 1, data.new_val || undefined);
  28       }
  29
  30       return internals.forums.splice(index, 1);
  31     }
  32   }
  33 };
  34
  35 export const forums = readable(internals.forums, (set) => {
  36 });