git ssb

1
var ui = require('patchbay/ui')
2
var pull = require('pull-stream')
3
var Cat = require('pull-cat')
4
var sort = require('ssb-sort')
5
var ref = require('ssb-ref')
6
var h = require('hyperscript')
7
var u = require('patchbay/util')
8
var Scroller = require('pull-scroll')
9
10
11
function once (cont) {
12
  var ended = false
13
  return function (abort, cb) {
14
    if(abort) return cb(abort)
15
    else if (ended) return cb(ended)
16
    else
17
      cont(function (err, data) {
18
        if(err) return cb(ended = err)
19
        ended = true
20
        cb(null, data)
21
      })
22
  }
23
}
24
25
var plugs = require('patchbay/plugs')
26
27
var message_render = plugs.first(exports.message_render = [])
28
var message_name = plugs.first(exports.message_name = [])
29
var message_compose = plugs.first(exports.message_compose = [])
30
var message_unbox = plugs.first(exports.message_unbox = [])
31
32
var sbot_get = plugs.first(exports.sbot_get = [])
33
var sbot_links = plugs.first(exports.sbot_links = [])
34
var get_id = plugs.first(exports.get_id = [])
35
36
function getThread (root, cb) {
37
  //in this case, it's inconvienent that panel only takes
38
  //a stream. maybe it would be better to accept an array?
39
40
  sbot_get(root, function (err, value) {
41
    var msg = {key: root, value: value}
42
//    if(value.content.root) return getThread(value.content.root, cb)
43
44
    pull(
45
      sbot_links({rel: 'root', dest: root, values: true, keys: true}),
46
      pull.collect(function (err, ary) {
47
        if(err) return cb(err)
48
        ary.unshift(msg)
49
        cb(null, ary)
50
      })
51
    )
52
  })
53
54
}
55
56
exports.screen_view = function (id) {
57
  if(ref.isMsg(id)) {
58
    var meta = {
59
      type: 'post',
60
      root: id,
61
      branch: id //mutated when thread is loaded.
62
    }
63
64
    var lastId = id
65
    var content = h('div.column.scroller__content')
66
    var div = h('div.column.scroller',
67
      {style: {'overflow-y': 'auto'}},
68
      h('div.scroller__wrapper',
69
        content,
70
        message_compose(meta, {shrink: false, placeholder: 'Write a reply'})
71
      )
72
    )
73
74
    message_name(id, function (err, name) {
75
      div.title = name
76
    })
77
78
    pull(
79
      sbot_links({
80
        rel: 'root', dest: id, keys: true, old: false
81
      }),
82
      pull.drain(function (msg) {
83
        loadThread() //redraw thread
84
      }, function () {} )
85
    )
86
87
88
    function loadThread () {
89
      getThread(id, function (err, thread) {
90
        //would probably be better keep an id for each message element
91
        //(i.e. message key) and then update it if necessary.
92
        //also, it may have moved (say, if you received a missing message)
93
        content.innerHTML = ''
94
        //decrypt
95
        thread = thread.map(function (msg) {
96
          return 'string' === typeof msg.value.content ? message_unbox(msg) : msg
97
        })
98
99
        if(err) return content.appendChild(h('pre', err.stack))
100
        sort(thread).map((msg) => {
101
          var result = message_render(msg, true, lastId)
102
          lastId = msg.key
103
          return result
104
        }).filter(Boolean).forEach(function (el) {
105
          content.appendChild(el)
106
        })
107
108
        var branches = sort.heads(thread)
109
        meta.branch = branches.length > 1 ? branches : branches[0]
110
        meta.root = thread[0].value.content.root || thread[0].key
111
        meta.channel = thread[0].value.content.channel
112
113
        var recps = thread[0].value.content.recps
114
        var private = thread[0].value.private
115
        if(private) {
116
          if(recps)
117
            meta.recps = recps
118
          else
119
            meta.recps = [thread[0].value.author, get_id()]
120
        }
121
      })
122
    }
123
124
    loadThread()
125
    return div
126
  }
127
}
128