git ssb

1
const FlumeView = require('flumeview-search')
2
const pull = require('pull-stream')
3
const Validator = require('is-my-json-valid')
4
5
const isBlobMention = Validator(require('./schema/mention'))
6
7
const INDEX_VERSION = 2
8
const SEARCH_TERM_MIN = 3
9
10
const imgExtRegEx = /\.(jpg|jpeg|png|gif|bmp|svg)$/i
11
const spaceCharRegex = /(-|\.|_|\/|~|\s)/g
12
13
module.exports = {
14
  name: 'meme',
15
  version: require('./package.json').version,
16
  manifest: {
17
    query: 'source',
18
    search: 'async'
19
  },
20
  init: (sbot) => {
21
    const view = sbot._flumeUse('meme', FlumeView(INDEX_VERSION, SEARCH_TERM_MIN, map))
22
23
    return {
24
      query: view.query,
25
      search
26
    }
27
28
    function search (opts, cb) {
29
      if (typeof opts === 'string') opts = { query: opts }
30
      opts.query = opts.query.toLowerCase()
31
32
      const validTerms = opts.query
33
        .split(spaceCharRegex)
34
        .filter(s => s.length >= SEARCH_TERM_MIN)
35
36
      pull(
37
        view.query(opts),
38
        pull.collect((err, data) => {
39
          if (err) return cb(err)
40
41
          const result = data.reduce((soFar, msg) => {
42
            getMentions(msg)
43
              .filter(isBlobMention)
44
              .filter(containsSearchTerms)
45
              .forEach(({ link, name }) => {
46
                if (!soFar[link]) soFar[link] = []
47
48
                soFar[link].push({ name, author: getAuthor(msg), msg: msg.key })
49
              })
50
51
            return soFar
52
          }, {})
53
54
          cb(null, result)
55
        })
56
      )
57
58
      function containsSearchTerms (mention) {
59
        const name = mention.name.toLowerCase()
60
        return validTerms.every(term => name.indexOf(term) > -1)
61
      }
62
    }
63
  }
64
}
65
66
function map (msg) {
67
  return getMentions(msg)
68
    .filter(isBlobMention)
69
    .map(m => m.name)
70
    .map(n => n.replace(imgExtRegEx, '').replace(spaceCharRegex, ' '))
71
    .join(' ')
72
}
73
74
function getMentions (msg) {
75
  if (!msg.value.content.mentions) return []
76
  else if (!Array.isArray(msg.value.content.mentions)) return [msg.value.content.mentions]
77
  else return msg.value.content.mentions
78
}
79
80
function getAuthor (msg) {
81
  return msg.value.author
82
}
83