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
exports.needs = {
35
  message_render: 'first',
36
  message_name: 'first',
37
  message_compose: 'first',
38
  message_unbox: 'first',
39
  sbot_get: 'first',
40
  sbot_links: 'first'
41
}
42
43
exports.gives = 'screen_view'
44
45
46
exports.create = function (api) {
47
48
  function getThread (root, cb) {
49
    //in this case, it's inconvienent that panel only takes
50
    //a stream. maybe it would be better to accept an array?
51
52
    api.sbot_get(root, function (err, value) {
53
      if (err) return cb(err)
54
      var msg = {key: root, value: value}
55
  //    if(value.content.root) return getThread(value.content.root, cb)
56
57
      pull(
58
        api.sbot_links({rel: 'root', dest: root, values: true, keys: true}),
59
        pull.collect(function (err, ary) {
60
          if(err) return cb(err)
61
          ary.unshift(msg)
62
          cb(null, ary)
63
        })
64
      )
65
    })
66
67
  }
68
69
  return function (id) {
70
    if(ref.isMsg(id)) {
71
      var meta = {
72
        type: 'post',
73
        root: id,
74
        branch: id //mutated when thread is loaded.
75
      }
76
77
      var content = h('div.column.scroller__content')
78
      var div = h('div.column.scroller',
79
        {style: {'overflow-y': 'auto'}},
80
        h('div.scroller__wrapper',
81
          content,
82
          api.message_compose(meta, {shrink: false, placeholder: 'Write a reply'})
83
        )
84
      )
85
86
      api.message_name(id, function (err, name) {
87
        div.title = name
88
      })
89
90
      pull(
91
        api.sbot_links({
92
          rel: 'root', dest: id, keys: true, old: false
93
        }),
94
        pull.drain(function (msg) {
95
          loadThread() //redraw thread
96
        }, function () {} )
97
      )
98
99
100
      function loadThread () {
101
        getThread(id, function (err, thread) {
102
          //would probably be better keep an id for each message element
103
          //(i.e. message key) and then update it if necessary.
104
          //also, it may have moved (say, if you received a missing message)
105
          content.innerHTML = ''
106
          if(err) return content.appendChild(h('pre', err.stack))
107
108
          //decrypt
109
          thread = thread.map(function (msg) {
110
            return 'string' === typeof msg.value.content ? api.message_unbox(msg) : msg
111
          })
112
113
          if(err) return content.appendChild(h('pre', err.stack))
114
          sort(thread).map(api.message_render).filter(Boolean).forEach(function (el) {
115
            content.appendChild(el)
116
          })
117
118
          var branches = sort.heads(thread)
119
          meta.branch = branches.length > 1 ? branches : branches[0]
120
          meta.root = thread[0].value.content.root || thread[0].key
121
          meta.channel = thread[0].value.content.channel
122
123
          var recps = thread[0].value.content.recps
124
          var private = thread[0].value.private
125
          if(private) {
126
            if(recps)
127
              meta.recps = recps
128
            else
129
              meta.recps = [thread[0].value.author, self_id]
130
          }
131
        })
132
      }
133
134
      loadThread()
135
      return div
136
    }
137
  }
138
}
139