git ssb

1
const nest = require('depnest')
2
const { h, Struct, Value } = require('mutant')
3
const pull = require('pull-stream')
4
const next = require('pull-next-query')
5
const Scroller = require('pull-scroll')
6
const TextNodeSearcher = require('text-node-searcher')
7
8
exports.gives = nest('app.page.search')
9
10
exports.needs = nest({
11
  'app.html.filter': 'first',
12
  'app.html.scroller': 'first',
13
  'message.html.render': 'first',
14
  'sbot.pull.log': 'first',
15
  'sbot.pull.stream': 'first'
16
})
17
18
var whitespace = /\s+/
19
20
exports.create = function (api) {
21
  return nest('app.page.search', searchPage)
22
23
  function searchPage (location) {
24
    const query = location.query.trim()
25
26
    const search = Struct({
27
      fulltext: Struct({
28
        isDone: Value(false)
29
      }),
30
      matches: Value(0)
31
    })
32
33
    const searchHeader = h('Search', [
34
      h('header', h('h1', query))
35
    ])
36
    const { filterMenu, filterDownThrough, resetFeed } = api.app.html.filter(draw)
37
    const { container, content } = api.app.html.scroller({ prepend: [searchHeader, filterMenu] })
38
39
    function renderMsg (msg) {
40
      var el = api.message.html.render(msg)
41
      var queryTerms = query.split(whitespace)
42
43
      highlight(el, createOrRegExp(queryTerms))
44
      return el
45
    }
46
47
    function draw () {
48
      resetFeed({ container, content })
49
50
      // TODO figure out how to step on kinda orderless search results
51
      pull(
52
        // api.sbot.pull.stream(sbot => next(sbot.search.query, { query, limit: 500 })),
53
        api.sbot.pull.stream(sbot => sbot.search.query({ query, limit: 500 })),
54
        filterDownThrough(),
55
        pull.through(() => search.matches.set(search.matches() + 1)),
56
        Scroller(container, content, renderMsg, false, false)
57
      )
58
    }
59
60
    draw()
61
62
    container.title = '?' + query
63
    return container
64
  }
65
}
66
67
function createOrRegExp (ary) {
68
  return new RegExp(ary.map(function (e) {
69
    return '\\b' + e + '\\b'
70
  }).join('|'), 'i')
71
}
72
73
function highlight (el, query) {
74
  var searcher = new TextNodeSearcher({container: el})
75
  searcher.query = query
76
  searcher.highlight()
77
  return el
78
}
79