git ssb

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