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Tree: 6c1319aa3220157ed76d0c897ae085605a9d65c2

Files: 6c1319aa3220157ed76d0c897ae085605a9d65c2 / lib / render-msg.js

64619 bytesRaw
1var h = require('hyperscript')
2var htime = require('human-time')
3var multicb = require('multicb')
4var u = require('./util')
5var mdInline = require('./markdown-inline')
6
7module.exports = RenderMsg
8
9function RenderMsg(render, app, msg, opts) {
10  this.render = render
11  this.app = app
12  this.msg = msg
13  this.serve = opts.serve
14  this.value = msg && msg.value || {}
15  var content = this.value.content
16  this.c = content || {}
17  this.isMissing = !content
18
19  if (typeof opts === 'boolean') opts = {raw: opts}
20  this.opts = opts || {}
21  this.shouldWrap = this.opts.wrap !== false
22}
23
24RenderMsg.prototype.getMsg = function (id, cb) {
25  if (!id) return cb()
26  return this.serve
27    ? this.serve.getMsgDecryptedMaybeOoo(id, cb)
28    : this.app.getMsgDecryptedOoo(id, cb)
29}
30
31RenderMsg.prototype.toUrl = function (href) {
32  return this.render.toUrl(href)
33}
34
35RenderMsg.prototype.linkify = function (text, opts) {
36  return this.render.linkify(text, opts)
37}
38
39RenderMsg.prototype.raw = function (cb) {
40  // linkify various things in the JSON. TODO: abstract this better
41
42  // clone the message for linkifying
43  var m = {}, k
44  for (k in this.msg) m[k] = this.msg[k]
45  m.value = {}
46  for (k in this.msg.value) m.value[k] = this.msg.value[k]
47  var tokens = {}
48  var isTokenNotString = {}
49
50  // link to feed starting from this message
51  if (m.value.sequence) {
52    var tok = u.token()
53    tokens[tok] = h('a', {href:
54      this.toUrl(m.value.author + '?gt=' + (m.value.sequence-1))},
55      m.value.sequence)
56    isTokenNotString[tok] = true
57    m.value.sequence = tok
58  }
59
60  if (typeof m.value.content === 'object' && m.value.content != null) {
61    var c = m.value.content = {}
62    for (k in this.c) c[k] = this.c[k]
63
64    // link to messages of same type
65    tok = u.token()
66    tokens[tok] = h('a', {href: this.toUrl('/type/' + c.type)}, c.type)
67    c.type = tok
68
69    // link to channel
70    if (c.channel) {
71      tok = u.token()
72      tokens[tok] = h('a', {href: this.toUrl('#' + c.channel)}, c.channel)
73      c.channel = tok
74    }
75
76    // link to hashtags
77    // TODO: recurse
78    for (var k in c) {
79      if (!c[k] || c[k][0] !== '#') continue
80      tok = u.token()
81      tokens[tok] = h('a', {href: this.toUrl(c[k])}, c[k])
82      c[k] = tok
83    }
84  }
85
86  // link refs
87  var els = this.linkify(JSON.stringify(m, 0, 2))
88
89  // stitch it all together
90  for (var i = 0; i < els.length; i++) {
91    if (typeof els[i] === 'string') {
92      for (var tok in tokens) {
93        if (els[i].indexOf(tok) !== -1) {
94          var delim = isTokenNotString[tok] ? '"' + tok + '"' : tok
95          var parts = els[i].split(delim)
96          els.splice(i, 1, parts[0], tokens[tok], parts[1])
97          continue
98        }
99      }
100    }
101  }
102  this.wrap(h('pre', els), cb)
103}
104
105RenderMsg.prototype.wrap = function (content, cb) {
106  if (!this.shouldWrap) return cb(null, content)
107  var date = new Date(this.msg.value.timestamp)
108  var self = this
109  var channel = this.c.channel ? '#' + this.c.channel : ''
110  var done = multicb({pluck: 1, spread: true})
111  done()(null, [h('tr.msg-row',
112    h('td.msg-left',
113      h('div', this.render.avatarImage(this.msg.value.author, done())),
114      h('div', this.render.idLink(this.msg.value.author, done())),
115      this.recpsLine(done())
116    ),
117    h('td.msg-main',
118      h('div.msg-header',
119        h('a.ssb-timestamp', {
120          title: date.toLocaleString(),
121          href: this.msg.key ? this.toUrl(this.msg.key) : undefined
122        }, htime(date)), ' ',
123        h('code', h('a.ssb-id',
124          {href: this.toUrl(this.msg.key)}, this.msg.key)),
125        channel ? [' ', h('a', {href: this.toUrl(channel)}, channel)] : '')),
126    h('td.msg-right', this.actions())
127  ), h('tr',
128    h('td.msg-content', {colspan: 3},
129      this.issues(done()),
130      content)
131  )])
132  done(cb)
133}
134
135RenderMsg.prototype.wrapMini = function (content, cb) {
136  if (!this.shouldWrap) return cb(null, content)
137  var date = new Date(this.value.timestamp)
138  var self = this
139  var channel = this.c.channel ? '#' + this.c.channel : ''
140  var done = multicb({pluck: 1, spread: true})
141  done()(null, h('tr.msg-row',
142    h('td.msg-left',
143      this.render.idLink(this.value.author, done()), ' ',
144      this.recpsLine(done()),
145      channel ? [h('a', {href: this.toUrl(channel)}, channel), ' '] : ''),
146    h('td.msg-main',
147      h('a.ssb-timestamp', {
148        title: date.toLocaleString(),
149        href: this.msg.key ? this.toUrl(this.msg.key) : undefined
150      }, htime(date)), ' ',
151      this.issues(done()),
152      content),
153    h('td.msg-right', this.actions())
154  ))
155  done(cb)
156}
157
158RenderMsg.prototype.actions = function () {
159  var lastMove
160  return this.msg.key ?
161    h('form', {method: 'post', action: ''},
162      this.msg.rel ? [this.msg.rel, ' '] : '',
163      this.opts.withGt && this.msg.timestamp ? [
164        h('a', {href: '?gt=' + this.msg.timestamp}, '↓'), ' '] : '',
165      this.c.type === 'edit' ? [
166        h('a', {href: this.toUrl('/edit-diff/' + encodeURIComponent(this.msg.key)),
167          title: 'view post edit diff'}, 'diff'), ' '] : '',
168      this.c.type === 'gathering' ? [
169        h('a', {href: this.render.toUrl('/about/' + encodeURIComponent(this.msg.key))}, 'about'), ' '] : '',
170      this.c.type === 'ssb-igo' && (lastMove = this.c.values[0] && this.c.values[0].lastMove) ? [
171        h('a', {href: this.render.toUrl(lastMove)}, 'previous'), ' '] : '',
172      /^(ssb_)?chess_/.test(this.c.type) ? [
173        h('a', {href: this.toUrl(this.msg.key) + '?full',
174          title: 'view full game board'}, 'full'), ' '] : '',
175      typeof this.c.text === 'string' ? [
176        h('a', {href: this.toUrl(this.msg.key) + '?raw=md',
177          title: 'view markdown source'}, 'md'), ' '] : '',
178      h('a', {href: this.toUrl(this.msg.key) + '?raw',
179        title: 'view raw message'}, 'raw'), ' ',
180      this.buttonsCommon(),
181      this.c.type === 'gathering' ? [this.attendButton(), ' '] : '',
182      this.voteButton('dig')
183  ) : [
184    this.msg.rel ? [this.msg.rel, ' '] : ''
185  ]
186}
187
188RenderMsg.prototype.sync = function (cb) {
189  cb(null, h('tr.msg-row', h('td', {colspan: 3},
190    h('hr')
191  )))
192}
193
194RenderMsg.prototype.recpsLine = function (cb) {
195  if (!this.value.private) return cb(), ''
196  var author = this.value.author
197  var recps = u.toArray(this.c.recps)
198  var recpsNotAuthor = recps.filter(function (link) {
199    return u.linkDest(link) !== author
200  })
201  var isAuthorRecp = recpsNotAuthor.length < recps.length
202  return this.render.privateLine(recpsNotAuthor, isAuthorRecp, cb)
203}
204
205RenderMsg.prototype.recpsIds = function () {
206  return this.value.private
207    ? u.toArray(this.c.recps).map(u.linkDest)
208    : []
209}
210
211RenderMsg.prototype.buttonsCommon = function () {
212  var chan = this.msg.value.content.channel
213  var recps = this.recpsIds()
214  return [
215    chan ? h('input', {type: 'hidden', name: 'channel', value: chan}) : '',
216    h('input', {type: 'hidden', name: 'link', value: this.msg.key}),
217    h('input', {type: 'hidden', name: 'recps', value: recps.join(',')})
218  ]
219}
220
221RenderMsg.prototype.voteButton = function (expression) {
222  var chan = this.msg.value.content.channel
223  return [
224    h('input', {type: 'hidden', name: 'vote_value', value: 1}),
225    h('input', {type: 'hidden', name: 'vote_expression', value: expression}),
226    h('input', {type: 'submit', name: 'action_vote', value: expression})]
227}
228
229RenderMsg.prototype.attendButton = function () {
230  var chan = this.msg.value.content.channel
231  return [
232    h('input', {type: 'submit', name: 'action_attend', value: 'attend'})
233  ]
234}
235
236RenderMsg.prototype.message = function (cb) {
237  if (this.opts.raw) return this.raw(cb)
238  if (this.msg.sync) return this.sync(cb)
239  if (typeof this.c === 'string') return this.encrypted(cb)
240  if (this.isMissing) return this.missing(cb)
241  switch (this.c.type) {
242    case 'post': return this.post(cb)
243    case 'ferment/like':
244    case 'robeson/like':
245    case 'vote': return this.vote(cb)
246    case 'about': return this.about(cb)
247    case 'contact': return this.contact(cb)
248    case 'pub': return this.pub(cb)
249    case 'channel': return this.channel(cb)
250    case 'git-repo': return this.gitRepo(cb)
251    case 'git-update': return this.gitUpdate(cb)
252    case 'pull-request': return this.gitPullRequest(cb)
253    case 'issue': return this.issue(cb)
254    case 'issue-edit': return this.issueEdit(cb)
255    case 'music-release-cc': return this.musicRelease(cb)
256    case 'ssb-dns': return this.dns(cb)
257    case 'gathering': return this.gathering(cb)
258    case 'micro': return this.micro(cb)
259    case 'ferment/audio':
260    case 'robeson/audio':
261      return this.audio(cb)
262    case 'ferment/repost':
263    case 'robeson/repost':
264      return this.repost(cb)
265    case 'ferment/update':
266    case 'robeson/update':
267      return this.update(cb)
268    case 'chess_invite':
269    case 'ssb_chess_invite':
270      return this.chessInvite(cb)
271    case 'chess_invite_accept':
272    case 'ssb_chess_invite_accept':
273      return this.chessInviteAccept(cb)
274    case 'chess_move':
275    case 'ssb_chess_move':
276      return this.chessMove(cb)
277    case 'chess_game_end':
278    case 'ssb_chess_game_end':
279      return this.chessGameEnd(cb)
280    case 'chess_chat':
281      return this.chessChat(cb)
282    case 'wifi-network': return this.wifiNetwork(cb)
283    case 'mutual/credit': return this.mutualCredit(cb)
284    case 'mutual/account': return this.mutualAccount(cb)
285    case 'npm-publish': return this.npmPublish(cb)
286    case 'npm-packages': return this.npmPackages(cb)
287    case 'npm-prebuilds': return this.npmPrebuilds(cb)
288    case 'acme-challenges-http-01': return this.acmeChallengesHttp01(cb)
289    case 'bookclub': return this.bookclub(cb)
290    case 'macaco_maluco-sombrio-wall': return this.sombrioWall(cb)
291    case 'macaco_maluco-sombrio-tombstone': return this.sombrioTombstone(cb)
292    case 'macaco_maluco-sombrio-score': return this.sombrioScore(cb)
293    case 'blog': return this.blog(cb)
294    case 'image-map': return this.imageMap(cb)
295    case 'talenet-identity-skill_assignment': return this.identitySkillAssign(cb)
296    case 'talenet-idea-skill_assignment': return this.ideaSkillAssign(cb)
297    case 'talenet-idea-create': return this.ideaCreate(cb)
298    case 'talenet-idea-association': return this.ideaAssocate(cb)
299    case 'talenet-skill-create': return this.skillCreate(cb)
300    case 'talenet-skill-similarity': return this.skillSimilarity(cb)
301    case 'talenet-idea-hat': return this.ideaHat(cb)
302    case 'talenet-idea-update': return this.ideaUpdate(cb)
303    case 'talenet-idea-comment':
304    case 'talenet-idea-comment_reply': return this.ideaComment(cb)
305    case 'about-resource': return this.aboutResource(cb)
306    case 'line-comment': return this.lineComment(cb)
307    case 'web-init': return this.webInit(cb)
308    case 'web-root': return this.webRoot(cb)
309    case 'poll': return this.poll(cb)
310    case 'position': return this.position(cb)
311    case 'scat_message': return this.scat(cb)
312    case 'share': return this.share(cb)
313    case 'tag': return this.tag(cb)
314    case 'edit': return this.edit(cb)
315    case 'dark-crystal/shard': return this.shard(cb)
316    case 'invite': return this.invite(cb)
317    case 'ssb-igo': return this.igo(cb)
318    default: return this.object(cb)
319  }
320}
321
322RenderMsg.prototype.encrypted = function (cb) {
323  this.wrapMini(this.render.lockIcon(), cb)
324}
325
326RenderMsg.prototype.markdown = function (cb) {
327  if (this.opts.markdownSource)
328    return this.markdownSource(this.c.text, this.c.mentions)
329  return this.render.markdown(this.c.text, this.c.mentions)
330}
331
332RenderMsg.prototype.markdownSource = function (text, mentions) {
333  return h('div',
334    h('pre', String(text)),
335    mentions ? [
336      h('div', h('em', 'mentions:')),
337      this.valueTable(mentions, 2, function () {})
338    ] : ''
339  ).innerHTML
340}
341
342RenderMsg.prototype.post = function (cb) {
343  var self = this
344  var done = multicb({pluck: 1, spread: true})
345  if (self.c.root === self.c.branch) done()()
346  else self.link(self.c.root, done())
347  self.links(self.c.branch, done())
348  self.links(self.c.fork, done())
349  done(function (err, rootLink, branchLinks, forkLinks) {
350    if (err) return self.wrap(u.renderError(err), cb)
351    self.wrap(h('div.ssb-post',
352      rootLink ? h('div', h('small', h('span.symbol', '→'), ' ', rootLink)) : '',
353      branchLinks.map(function (a, i) {
354        return h('div', h('small', h('span.symbol', '  ↳'), ' ', a))
355      }),
356      forkLinks.map(function (a, i) {
357        return h('div', h('small', h('span.symbol', '⑂'), ' ', a))
358      }),
359      h('div.ssb-post-text', {innerHTML: self.markdown()})
360    ), cb)
361  })
362}
363
364RenderMsg.prototype.edit = function (cb) {
365  var self = this
366  var done = multicb({pluck: 1, spread: true})
367  if (self.c.root === self.c.branch) done()()
368  else self.link(self.c.root, done())
369  self.links(self.c.branch, done())
370  self.links(self.c.fork, done())
371  self.link(self.c.original, done())
372  if (self.c.updated === self.c.branch) done()()
373  else self.link(self.c.updated, done())
374  done(function (err, rootLink, branchLinks, forkLinks, originalLink, updatedLink) {
375    if (err) return self.wrap(u.renderError(err), cb)
376    self.wrap(h('div.ssb-post',
377      h('div', 'edit ', originalLink || ''),
378      rootLink ? h('div', h('small', h('span.symbol', '→'), ' ', rootLink)) : '',
379      updatedLink ? h('div', h('small', h('span.symbol', '  ↳'), ' ', updatedLink)) : '',
380      branchLinks.map(function (a, i) {
381        return h('div', h('small', h('span.symbol', '  ↳'), ' ', a))
382      }),
383      forkLinks.map(function (a, i) {
384        return h('div', h('small', h('span.symbol', '⑂'), ' ', a))
385      }),
386      h('blockquote.ssb-post-text', {innerHTML: self.markdown()})
387    ), cb)
388  })
389}
390
391RenderMsg.prototype.vote = function (cb) {
392  var self = this
393  var v = self.c.vote || self.c.like || {}
394  self.link(v, function (err, a) {
395    if (err) return cb(err)
396    self.wrapMini([
397      v.value > 0 ? 'dug' : v.value < 0 ? 'downvoted' : 'undug',
398      ' ', a,
399      v.reason ? [' as ', h('q', String(v.reason))] : ''
400    ], cb)
401  })
402}
403
404RenderMsg.prototype.getName = function (id, cb) {
405  switch (id && id[0]) {
406    case '%': return this.getMsgName(id, cb)
407    case '@': // fallthrough
408    case '&': return this.getAboutName(id, cb)
409    default: return cb(null, String(id))
410  }
411}
412
413RenderMsg.prototype.getMsgName = function (id, cb) {
414  var self = this
415  self.app.getMsg(id, function (err, msg) {
416    if (err && err.name == 'NotFoundError')
417      cb(null, id.substring(0, 10)+'...(missing)')
418    else if (err) cb(err)
419      // preserve security: only decrypt the linked message if we decrypted
420      // this message
421    else if (self.msg.value.private) self.app.unboxMsg(msg, gotMsg)
422    else gotMsg(null, msg)
423  })
424  function gotMsg(err, msg) {
425    if (err) return cb(err)
426    new RenderMsg(self.render, self.app, msg, {wrap: false}).title(cb)
427  }
428}
429
430function truncate(str, len) {
431  str = String(str)
432  return str.length > len ? str.substr(0, len) + '...' : str
433}
434
435function title(str) {
436  return truncate(mdInline(str), 72)
437}
438
439RenderMsg.prototype.title = function (cb) {
440  var self = this
441  self.app.filterMsg(self.msg, self.opts, function (err, show) {
442    if (err) return cb(err)
443    if (show) self.title1(cb)
444    else cb(null, '[…]')
445  })
446}
447
448RenderMsg.prototype.title1 = function (cb) {
449  var self = this
450  if (!self.c || typeof self.c !== 'object') {
451    cb(null, self.msg.key)
452  } else if (typeof self.c.text === 'string') {
453    if (self.c.type === 'post')
454      cb(null, title(self.c.text))
455    else
456      cb(null, '%' + self.c.type + ': ' + (self.c.title || title(self.c.text)))
457  } else {
458    if (self.c.type === 'ssb-dns')
459      cb(null, self.c.record && JSON.stringify(self.c.record.data) || self.msg.key)
460    else if (self.c.type === 'npm-publish')
461      self.npmPublishTitle(cb)
462    else if (self.c.type === 'chess_chat')
463      cb(null, title(self.c.msg))
464    else if (self.c.type === 'chess_invite')
465      self.chessInviteTitle(cb)
466    else if (self.c.type === 'bookclub')
467      self.bookclubTitle(cb)
468    else if (self.c.type === 'talenet-skill-create' && self.c.name)
469      cb(null, self.c.name)
470    else if (self.c.type === 'talenet-idea-create')
471      self.app.getIdeaTitle(self.msg.key, cb)
472    else if (self.c.type === 'tag')
473      self.tagTitle(cb)
474    else
475    self.app.getAbout(self.msg.key, function (err, about) {
476      if (err) return cb(err)
477      var name = about.name || about.title
478        || (about.description && mdInline(about.description))
479      if (name) return cb(null, truncate(name, 72))
480      self.message(function (err, el) {
481        if (err) return cb(err)
482        cb(null, '%' + title(h('div', el).textContent))
483      })
484    })
485  }
486}
487
488RenderMsg.prototype.getAboutName = function (id, cb) {
489  this.app.getAbout(id, function (err, about) {
490    cb(err, about && about.name || (String(id).substr(0, 8) + '…'))
491  })
492}
493
494RenderMsg.prototype.link = function (link, cb) {
495  var self = this
496  var ref = u.linkDest(link)
497  if (!ref) return cb(null, '')
498  self.getName(ref, function (err, name) {
499    if (err) name = truncate(ref, 10)
500    cb(null, h('a', {href: self.toUrl(ref)}, name))
501  })
502}
503
504RenderMsg.prototype.link1 = function (link, cb) {
505  var self = this
506  var ref = u.linkDest(link)
507  if (!ref) return cb(), ''
508  var a = h('a', {href: self.toUrl(ref)}, ref)
509  self.getName(ref, function (err, name) {
510    if (err) name = ref
511    a.childNodes[0].textContent = name
512    cb()
513  })
514  return a
515}
516
517RenderMsg.prototype.links = function (links, cb) {
518  var self = this
519  var done = multicb({pluck: 1})
520  u.toArray(links).forEach(function (link) {
521    self.link(link, done())
522  })
523  done(cb)
524}
525
526function dateTime(d) {
527  var date = new Date(d.epoch)
528  return date.toString()
529  // d.bias
530  // d.epoch
531}
532
533// TODO: make more DRY
534var knownAboutProps = {
535  type: true,
536  root: true,
537  about: true,
538  attendee: true,
539  about: true,
540  image: true,
541  description: true,
542  name: true,
543  title: true,
544  attendee: true,
545  startDateTime: true,
546  endDateTime: true,
547  location: true,
548  /*
549  rating: true,
550  ratingType: true,
551  */
552  'talenet-version': true,
553}
554
555RenderMsg.prototype.about = function (cb) {
556  var keys = Object.keys(this.c).sort().join()
557  var isSelf = this.c.about === this.msg.value.author
558
559  if (keys === 'about,name,type') {
560    return this.wrapMini([
561      isSelf ?
562        'self-identifies as ' :
563        ['identifies ', h('a', {href: this.toUrl(this.c.about)}, truncate(this.c.about, 10)), ' as '],
564      h('ins', String(this.c.name))
565    ], cb)
566  }
567
568  if (keys === 'about,publicWebHosting,type') {
569    var public = this.c.publicWebHosting && this.c.publicWebHosting !== 'false'
570    return this.wrapMini([
571      isSelf ?
572        public ? 'is okay with being hosted publicly'
573        : 'wishes to not to be hosted publicly'
574      : public ? ['thinks ', h('a', {href: this.toUrl(this.c.about)}, truncate(this.c.about, 10)),
575          ' should be hosted publicly ']
576        : ['wishes ', h('a', {href: this.toUrl(this.c.about)}, truncate(this.c.about, 10)),
577          ' to not be hosted publicly']
578    ], cb)
579  }
580
581  var done = multicb({pluck: 1, spread: true})
582  var elCb = done()
583
584  var isAttendingMsg = u.linkDest(this.c.attendee) === this.msg.value.author
585    && keys === 'about,attendee,type'
586  if (isAttendingMsg) {
587    var attending = !this.c.attendee.remove
588    this.wrapMini([
589      attending ? ' is attending' : ' is not attending', ' ',
590      this.link1(this.c.about, done())
591      ], elCb)
592    return done(cb)
593  }
594
595  var extras
596  for (var k in this.c) {
597    if (this.c[k] !== null && this.c[k] !== '' && !knownAboutProps[k]) {
598      if (!extras) extras = {}
599      extras[k] = this.c[k]
600    }
601  }
602
603  var img = u.linkDest(this.c.image)
604  // if there is a description, it is likely to be multi-line
605  var hasDescription = this.c.description != null
606  // if this about message gives the thing a name, show its id
607  var showComputedName = !isSelf && !this.c.name
608
609  this.wrap([
610    this.c.root ? h('div',
611      h('small', '> ', this.link1(this.c.root, done()))
612    ) : '',
613    isSelf ? 'self-describes as ' : [
614      'describes ',
615      !this.c.about ? ''
616        : showComputedName ? this.link1(this.c.about, done())
617        : h('a', {href: this.toUrl(this.c.about)}, truncate(this.c.about, 10)),
618      ' as '
619    ],
620    this.c.name ? [h('ins', String(this.c.name)), ' '] : '',
621    this.c.title ? h('h3', String(this.c.title)) : '',
622    this.c.description ? h('div',
623      {innerHTML: this.render.markdown(this.c.description)}) : '',
624    this.c.attendee ? h('div',
625      this.link1(this.c.attendee.link, done()),
626      this.c.attendee.remove ? ' is not attending' : ' is attending'
627    ) : '',
628    this.c.startDateTime ? h('div',
629      'starting at ', dateTime(this.c.startDateTime)) : '',
630    this.c.endDateTime ? h('div',
631      'ending at ', dateTime(this.c.endDateTime)) : '',
632    this.c.location ? h('div', 'at ', String(this.c.location)) : '',
633    img ? h('a', {href: this.toUrl(img)},
634      h('img.ssb-avatar-image', {
635        src: this.render.imageUrl(img),
636        alt: ' ',
637      })) : '',
638    /*
639    this.c.rating != null ? this.aboutRating() : '',
640    */
641    extras ? this.valueTable(extras, 1, done())
642    : ''
643  ], elCb)
644  done(cb)
645}
646
647/*
648 * disabled until it's clearer how to do this -cel
649RenderMsg.prototype.aboutRating = function (cb) {
650  var rating = Number(this.c.rating)
651  var type = this.c.ratingType || '★'
652  var text = rating + ' ' + type
653  if (isNaN(rating)) return 'rating: ' + text
654  if (rating > 5) rating = 5
655  var el = h('div', {title: text})
656  for (var i = 0; i < rating; i++) {
657    el.appendChild(h('span',
658      {innerHTML: u.unwrapP(this.render.markdown(type) + ' ')}
659    ))
660  }
661  return el
662}
663*/
664
665RenderMsg.prototype.contact = function (cb) {
666  var self = this
667  self.link(self.c.contact, function (err, a) {
668    if (err) return cb(err)
669    if (!a) a = "?"
670      self.wrapMini([
671        self.c.following && self.c.autofollow ? 'follows pub' :
672        self.c.following && self.c.pub ? 'autofollows' :
673        self.c.following ? 'follows' :
674        self.c.blocking ? 'blocks' :
675        self.c.flagged ? 'flagged' :
676        self.c.following === false ? 'unfollows' :
677        self.c.blocking === false ? 'unblocks' : '',
678        self.c.flagged === false ? 'unflagged' :
679        ' ', a,
680        self.c.note ? [
681          ' from ',
682          h('code', String(self.c.note))
683        ] : '',
684        self.c.reason ? [' because ',
685          h('q', String(self.c.reason))
686        ] : ''
687      ], cb)
688  })
689}
690
691RenderMsg.prototype.pub = function (cb) {
692  var self = this
693  var addr = self.c.address || self.c.pub || {}
694  self.link(addr.key || addr.link, function (err, pubLink) {
695    if (err) return cb(err)
696      self.wrapMini([
697        'connects to ', pubLink, ' at ',
698        h('code', addr.host + ':' + addr.port)], cb)
699  })
700}
701
702RenderMsg.prototype.channel = function (cb) {
703  var chan = '#' + this.c.channel
704  this.wrapMini([
705    this.c.subscribed ? 'subscribes to ' :
706    this.c.subscribed === false ? 'unsubscribes from ' : '',
707    h('a', {href: this.toUrl(chan)}, chan)], cb)
708}
709
710RenderMsg.prototype.gitRepo = function (cb) {
711  var self = this
712  var id = self.msg.key
713  var name = self.c.name
714  var upstream = self.c.upstream
715  self.link(upstream, function (err, upstreamA) {
716    if (err) upstreamA = ('a', {href: self.toUrl(upstream)}, String(name))
717    self.wrapMini([
718      upstream ? ['forked ', upstreamA, ': '] : '',
719      'git clone ',
720      h('code', h('small', 'ssb://' + id)),
721      name ? [' ', h('a', {href: self.toUrl(id)}, String(name))] : ''
722    ], cb)
723  })
724}
725
726function asString(str) {
727  return str ? String(str) : str
728}
729
730RenderMsg.prototype.gitUpdate = function (cb) {
731  var self = this
732  // h('a', {href: self.toUrl(self.c.repo)}, 'ssb://' + self.c.repo),
733  var size = [].concat(self.c.packs, self.c.indexes)
734    .map(function (o) { return o && o.size })
735    .reduce(function (total, s) { return total + s })
736
737  var done = multicb({pluck: 1, spread: true})
738  self.link(self.c.repo, done())
739  self.render.npmPackageMentions(self.c.mentions, done())
740  self.render.npmPrebuildMentions(self.c.mentions, done())
741  done(function (err, a, pkgMentionsEl, prebuildMentionsEl) {
742    if (err) return cb(err)
743      self.wrap(h('div.ssb-git-update',
744        'git push ', a, ' ',
745        !isNaN(size) ? [self.render.formatSize(size), ' '] : '',
746        self.c.refs ? h('ul', Object.keys(self.c.refs).map(function (ref) {
747          var id = asString(self.c.refs[ref])
748          var type = /^refs\/tags/.test(ref) ? 'tag' : 'commit'
749          var path = id && ('/git/' + type + '/' + encodeURIComponent(id)
750            + '?msg=' + encodeURIComponent(self.msg.key))
751            + '&search=1'
752          var name = ref.replace(/^refs\/(heads|tags)\//, '')
753          return h('li',
754            self.linkify(name, {ellipsis: true}), ': ',
755            id ? h('a', {href: self.render.toUrl(path)}, h('code', id))
756               : h('em', 'deleted'))
757      })) : '',
758      Array.isArray(self.c.commits) ?
759        h('ul', self.c.commits.map(function (commit) {
760          var path = '/git/commit/' + encodeURIComponent(commit.sha1)
761            + '?msg=' + encodeURIComponent(self.msg.key)
762          return h('li', commit.sha1 ? [h('a', {href: self.render.toUrl(path)},
763            h('code', String(commit.sha1).substr(0, 8))), ' '] : '',
764            commit.title ? self.linkify(String(commit.title)) : '',
765            self.render.gitCommitBody(commit.body)
766          )
767        })) : '',
768      Array.isArray(self.c.tags) ?
769        h('ul', self.c.tags.map(function (tag) {
770          var path = '/git/tag/' + encodeURIComponent(tag.sha1)
771            + '?msg=' + encodeURIComponent(self.msg.key)
772          return h('li',
773            h('a', {href: self.render.toUrl(path)},
774              h('code', String(tag.sha1).substr(0, 8))), ' ',
775            'tagged ', String(tag.type), ' ',
776            h('code', String(tag.object).substr(0, 8)), ' ',
777            String(tag.tag),
778            tag.title ? [': ', self.linkify(String(tag.title).trim()), ' '] : '',
779            tag.body ? self.render.gitCommitBody(tag.body) : ''
780          )
781        })) : '',
782        self.c.commits_more ? h('div',
783          '+ ' + self.c.commits_more + ' more commits') : '',
784        self.c.tags_more ? h('div',
785          '+ ' + self.c.tags_more + ' more tags') : '',
786        pkgMentionsEl,
787        prebuildMentionsEl
788    ), cb)
789  })
790}
791
792RenderMsg.prototype.gitPullRequest = function (cb) {
793  var self = this
794  var done = multicb({pluck: 1, spread: true})
795  self.link(self.c.repo, done())
796  self.link(self.c.head_repo, done())
797  done(function (err, baseRepoLink, headRepoLink) {
798    if (err) return cb(err)
799    self.wrap(h('div.ssb-pull-request',
800      'pull request ',
801      'to ', baseRepoLink, ':', String(self.c.branch), ' ',
802      'from ', headRepoLink, ':', String(self.c.head_branch),
803      self.c.title ? h('h4', String(self.c.title)) : '',
804      h('div', {innerHTML: self.markdown()})), cb)
805  })
806}
807
808RenderMsg.prototype.issue = function (cb) {
809  var self = this
810  self.link(self.c.project, function (err, projectLink) {
811    if (err) return cb(err)
812    self.wrap(h('div.ssb-issue',
813      'issue on ', projectLink,
814      self.c.title ? h('h4', String(self.c.title)) : '',
815      h('div', {innerHTML: self.markdown()})), cb)
816  })
817}
818
819RenderMsg.prototype.issueEdit = function (cb) {
820  this.wrap('', cb)
821}
822
823RenderMsg.prototype.object = function (cb) {
824  var done = multicb({pluck: 1, spread: true})
825  var elCb = done()
826  this.wrap([
827    this.valueTable(this.c, 1, done()),
828  ], elCb)
829  done(cb)
830}
831
832RenderMsg.prototype.valueTable = function (val, depth, cb) {
833  var isContent = depth === 1
834  var self = this
835  switch (typeof val) {
836    case 'object':
837      if (val === null) return cb(), ''
838      var done = multicb({pluck: 1, spread: true})
839      var el = Array.isArray(val)
840        ? h('ul', val.map(function (item) {
841          return h('li', self.valueTable(item, depth + 1, done()))
842        }))
843        : h('table.ssb-object', Object.keys(val).map(function (key) {
844          if (key === 'text') {
845            return h('tr',
846              h('td', h('strong', 'text')),
847              h('td', h('div', {
848                innerHTML: self.render.markdown(val.text, val.mentions)
849              }))
850            )
851          } else if (isContent && key === 'type') {
852            // TODO: also link to images by type, using links2
853            var type = String(val.type)
854            return h('tr',
855              h('td', h('strong', 'type')),
856              h('td', h('a', {href: self.toUrl('/type/' + type)}, type))
857            )
858          }
859          return h('tr',
860            h('td', h('strong', key)),
861            h('td', self.valueTable(val[key], depth + 1, done()))
862          )
863        }))
864      done(cb)
865      return el
866    case 'string':
867      if (val[0] === '#') return cb(null, h('a', {href: self.toUrl('/channel/' + val.substr(1))}, val))
868      if (u.isRef(val)) return self.link1(val, cb)
869      if (/^ssb-blob:\/\//.test(val)) return cb(), h('a', {href: self.toUrl(val)}, val)
870      return cb(), self.linkify(val)
871    case 'boolean':
872      return cb(), h('input', {
873        type: 'checkbox', disabled: 'disabled', checked: val
874      })
875    default:
876      return cb(), String(val)
877  }
878}
879
880RenderMsg.prototype.missing = function (cb) {
881  this.wrapMini([
882    h('code', 'MISSING'), ' ',
883    h('a', {href: '?ooo=1'}, 'fetch')
884  ], cb)
885}
886
887RenderMsg.prototype.issues = function (cb) {
888  var self = this
889  var done = multicb({pluck: 1, spread: true})
890  var issues = u.toArray(self.c.issues)
891  if (self.c.type === 'issue-edit' && self.c.issue) {
892    issues.push({
893      link: self.c.issue,
894      title: self.c.title,
895      open: self.c.open,
896    })
897  }
898  var els = issues.map(function (issue) {
899    var commit = issue.object || issue.label ? [
900      issue.object ? h('code', String(issue.object)) : '', ' ',
901      issue.label ? h('q', String(issue.label)) : ''] : ''
902    if (issue.merged === true)
903      return h('div',
904        'merged ', self.link1(issue, done()))
905    if (issue.open === false)
906      return h('div',
907        'closed ', self.link1(issue, done()))
908    if (issue.open === true)
909      return h('div',
910        'reopened ', self.link1(issue, done()))
911    if (typeof issue.title === 'string')
912      return h('div',
913        'renamed ', self.link1(issue, done()), ' to ', h('ins', String(issue.title)))
914  })
915  done(cb)
916  return els.length > 0 ? [els, h('br')] : ''
917}
918
919RenderMsg.prototype.repost = function (cb) {
920  var self = this
921  var id = u.linkDest(self.c.repost)
922  self.app.getMsg(id, function (err, msg) {
923    if (err && err.name == 'NotFoundError')
924      gotMsg(null, id.substring(0, 10)+'...(missing)')
925    else if (err) gotMsg(err)
926    else if (self.msg.value.private) self.app.unboxMsg(msg, gotMsg)
927    else gotMsg(null, msg)
928  })
929  function gotMsg(err, msg) {
930    if (err) return cb(err)
931    var renderMsg = new RenderMsg(self.render, self.app, msg, {wrap: false})
932      renderMsg.message(function (err, msgEl) {
933        self.wrapMini(['reposted ',
934          h('code.ssb-id',
935            h('a', {href: self.render.toUrl(id)}, id)),
936          h('div', err ? u.renderError(err) : msgEl || '')
937        ], cb)
938    })
939  }
940}
941
942RenderMsg.prototype.update = function (cb) {
943  var id = String(this.c.update)
944  this.wrapMini([
945    h('div', 'updated ', h('code.ssb-id',
946      h('a', {href: this.render.toUrl(id)}, id))),
947    this.c.title ? h('h4.msg-title', String(this.c.title)) : '',
948    this.c.description ? h('div',
949      {innerHTML: this.render.markdown(this.c.description)}) : ''
950  ], cb)
951}
952
953function formatDuration(s) {
954  return Math.floor(s / 60) + ':' + ('0' + s % 60).substr(-2)
955}
956
957RenderMsg.prototype.audio = function (cb) {
958  // fileName, fallbackFileName, overview
959  this.wrap(h('table', h('tr',
960    h('td',
961      this.c.artworkSrc
962      ? h('a', {href: this.render.toUrl(this.c.artworkSrc)}, h('img', {
963          src: this.render.imageUrl(this.c.artworkSrc),
964          alt: ' ',
965          width: 72,
966          height: 72,
967        }))
968      : ''),
969    h('td',
970      h('a', {href: this.render.toUrl(this.c.audioSrc)},
971        String(this.c.title)),
972      isFinite(this.c.duration)
973        ? ' (' + formatDuration(this.c.duration) + ')'
974        : '',
975      this.c.description
976        ? h('p', {innerHTML: this.render.markdown(this.c.description)})
977        : ''
978  ))), cb)
979}
980
981RenderMsg.prototype.musicRelease = function (cb) {
982  var self = this
983  this.wrap([
984    h('table', h('tr',
985      h('td',
986        this.c.cover
987          ? h('a', {href: this.render.imageUrl(this.c.cover)}, h('img', {
988              src: this.render.imageUrl(this.c.cover),
989              alt: ' ',
990              width: 72,
991              height: 72,
992            }))
993          : ''),
994      h('td',
995        h('h4.msg-title', String(this.c.title)),
996        this.c.text
997          ? h('div', {innerHTML: this.render.markdown(this.c.text)})
998          : ''
999      )
1000    )),
1001    h('ul', u.toArray(this.c.tracks).filter(Boolean).map(function (track) {
1002      return h('li',
1003        h('a', {href: self.render.toUrl(track.link)},
1004          String(track.fname)))
1005    }))
1006  ], cb)
1007}
1008
1009RenderMsg.prototype.dns = function (cb) {
1010  var self = this
1011  var record = self.c.record || {}
1012  var done = multicb({pluck: 1, spread: true})
1013  var elCb = done()
1014  self.wrap([
1015    h('div',
1016      h('p',
1017        h('ins', {title: 'name'}, String(record.name)), ' ',
1018        h('span', {title: 'ttl'}, String(record.ttl)), ' ',
1019        h('span', {title: 'class'}, String(record.class)), ' ',
1020        h('span', {title: 'type'}, String(record.type))
1021      ),
1022      h('pre', {title: 'data'},
1023        JSON.stringify(record.data || record.value, null, 2)),
1024      !self.c.branch ? null : h('div',
1025        'replaces: ', u.toArray(self.c.branch).map(function (id, i) {
1026          return [self.link1(id, done()), i === 0 ? ', ' : '']
1027        })
1028      )
1029    )
1030  ], elCb)
1031  done(cb)
1032}
1033
1034RenderMsg.prototype.wifiNetwork = function (cb) {
1035  var net = this.c.network || {}
1036  this.wrap([
1037    h('div', 'wifi network'),
1038    h('table',
1039      Object.keys(net).map(function (key) {
1040        return h('tr',
1041          h('td', key),
1042          h('td', h('pre', JSON.stringify(net[key]))))
1043      })
1044    ),
1045  ], cb)
1046}
1047
1048RenderMsg.prototype.mutualCredit = function (cb) {
1049  var self = this
1050  var currency = String(self.c.currency)
1051  self.link(self.c.account, function (err, a) {
1052    if (err) return cb(err)
1053    self.wrapMini([
1054      'credits ', a || '?', ' ',
1055      h('code', String(self.c.amount)), ' ',
1056      currency[0] === '#'
1057        ? h('a', {href: self.toUrl(currency)}, currency)
1058        : h('ins', currency),
1059      self.c.memo ? [' for ',
1060        h('q', {innerHTML: u.unwrapP(self.render.markdown(self.c.memo))})
1061      ] : ''
1062    ], cb)
1063  })
1064}
1065
1066RenderMsg.prototype.mutualAccount = function (cb) {
1067  return this.object(cb)
1068}
1069
1070RenderMsg.prototype.gathering = function (cb) {
1071  this.wrapMini('gathering', cb)
1072}
1073
1074RenderMsg.prototype.micro = function (cb) {
1075  var el = h('span', {innerHTML: u.unwrapP(this.markdown())})
1076  this.wrapMini(el, cb)
1077}
1078
1079function hJoin(els, seperator, lastSeparator) {
1080  return els.map(function (el, i) {
1081    return [i === 0 ? '' : i === els.length-1 ? lastSeparator : seperator, el]
1082  })
1083}
1084
1085function asNpmReadme(readme) {
1086  if (!readme || readme === 'ERROR: No README data found!') return
1087  return u.ifString(readme)
1088}
1089
1090function singleValue(obj) {
1091  if (!obj || typeof obj !== 'object') return obj
1092  var keys = Object.keys(obj)
1093  if (keys.length === 1) return obj[keys[0]]
1094}
1095
1096function ifDifferent(obj, value) {
1097  if (singleValue(obj) !== value) return obj
1098}
1099
1100RenderMsg.prototype.npmPublish = function (cb) {
1101  var self = this
1102  var render = self.render
1103  var pkg = self.c.meta || {}
1104  var pkgReadme = asNpmReadme(pkg.readme)
1105  var pkgDescription = u.ifString(pkg.description)
1106
1107  var versions = Object.keys(pkg.versions || {})
1108  var singleVersion = versions.length === 1 ? versions[0] : null
1109  var singleRelease = singleVersion && pkg.versions[singleVersion]
1110  var singleReadme = singleRelease && asNpmReadme(singleRelease.readme)
1111
1112  var distTags = pkg['dist-tags'] || {}
1113  var distTagged = {}
1114  for (var distTag in distTags)
1115    if (distTag !== 'latest')
1116      distTagged[distTags[distTag]] = distTag
1117
1118  self.links(self.c.previousPublish, function (err, prevLinks) {
1119    if (err) return cb(err)
1120    self.wrap([
1121      h('div',
1122        'published ',
1123        h('u', String(pkg.name)), ' ',
1124        hJoin(versions.map(function (version) {
1125          var distTag = distTagged[version]
1126          return [h('b', version), distTag ? [' (', h('i', distTag), ')'] : '']
1127        }), ', ')
1128      ),
1129      pkgDescription ? h('div',
1130        // TODO: make mdInline use custom emojis
1131        h('q', {innerHTML: u.unwrapP(render.markdown(pkgDescription))})) : '',
1132      prevLinks.length ? h('div', 'previous: ', prevLinks) : '',
1133      pkgReadme && pkgReadme !== singleReadme ?
1134        h('blockquote', {innerHTML: render.markdown(pkgReadme)}) : '',
1135      versions.map(function (version, i) {
1136        var release = pkg.versions[version] || {}
1137        var license = u.ifString(release.license)
1138        var author = ifDifferent(release.author, self.msg.value.author)
1139        var description = u.ifString(release.description)
1140        var readme = asNpmReadme(release.readme)
1141        var keywords = u.toArray(release.keywords).map(u.ifString)
1142        var dist = release.dist || {}
1143        var size = u.ifNumber(dist.size)
1144        return [
1145          h > 0 ? h('br') : '',
1146          version !== singleVersion ? h('div', 'version: ', version) : '',
1147          author ? h('div', 'author: ', render.npmAuthorLink(author)) : '',
1148          license ? h('div', 'license: ', h('code', license)) : '',
1149          keywords.length ? h('div', 'keywords: ', keywords.join(', ')) : '',
1150          size ? h('div', 'size: ', render.formatSize(size)) : '',
1151          description && description !== pkgDescription ?
1152            h('div', h('q', {innerHTML: render.markdown(description)})) : '',
1153          readme ? h('blockquote', {innerHTML: render.markdown(readme)}) : ''
1154        ]
1155      })
1156    ], cb)
1157  })
1158}
1159
1160RenderMsg.prototype.npmPackages = function (cb) {
1161  var self = this
1162  var done = multicb({pluck: 1, spread: true})
1163  var elCb = done()
1164  function renderIdLink(id) {
1165    return [h('a', {href: self.toUrl(id)}, truncate(id, 8)), ' ']
1166  }
1167  var singlePkg = self.c.mentions
1168    && self.c.mentions.length === 1
1169    && self.c.mentions[0]
1170  var m = singlePkg && /^npm:(.*?):(.*?):/.exec(singlePkg.name)
1171  var singlePkgSpec = m && (m[1] + (m[2] ? '@' + m[2] : ''))
1172  self.render.npmPackageMentions(self.c.mentions, function (err, el) {
1173    if (err) return cb(err)
1174    var dependencyLinks = u.toArray(self.c.dependencyBranch)
1175    var versionLinks = u.toArray(self.c.versionBranch)
1176    self.wrap(h('div', [
1177      el,
1178      singlePkg ? h('p',
1179        h('code',
1180          'npm install --registry=' +
1181            'http://' + self.app.host + ':' + self.app.port +
1182            '/npm-registry/' + encodeURIComponent(self.msg.key) + ' ' +
1183            singlePkgSpec),
1184      ) : '',
1185      dependencyLinks.length ? h('div',
1186        'dependencies via: ', dependencyLinks.map(renderIdLink)
1187      ) : '',
1188      versionLinks.length ? h('div',
1189        'previous versions: ', versionLinks.map(renderIdLink)
1190      ) : ''
1191    ]), elCb)
1192    return done(cb)
1193  })
1194}
1195
1196RenderMsg.prototype.npmPrebuilds = function (cb) {
1197  var self = this
1198  self.render.npmPrebuildMentions(self.c.mentions, function (err, el) {
1199    if (err) return cb(err)
1200    self.wrap(el, cb)
1201  })
1202}
1203
1204RenderMsg.prototype.npmPublishTitle = function (cb) {
1205  var pkg = this.c.meta || {}
1206  var name = pkg.name || pkg._id || '?'
1207
1208  var taggedVersions = {}
1209  for (var version in pkg.versions || {})
1210    taggedVersions[version] = []
1211
1212  var distTags = pkg['dist-tags'] || {}
1213  for (var distTag in distTags) {
1214    if (distTag === 'latest') continue
1215    var version = distTags[distTag] || '?'
1216    var tags = taggedVersions[version] || (taggedVersions[version] = [])
1217    tags.push(distTag)
1218  }
1219
1220  cb(null, name + '@' + Object.keys(taggedVersions).map(function (version) {
1221    var tags = taggedVersions[version]
1222    return (tags.length ? tags.join(',') + ':' : '') + version
1223  }).join(','))
1224}
1225
1226function expandDigitToSpaces(n) {
1227  return '         '.substr(-n)
1228}
1229
1230function parseFenRank (line) {
1231  return line.replace(/\d/g, expandDigitToSpaces).split('')
1232}
1233
1234function parseChess(fen) {
1235  var fields = String(fen).split(/\s+/)
1236  var ranks = fields[0].split('/')
1237  var f2 = fields[2] || ''
1238  return {
1239    board: ranks.map(parseFenRank),
1240    /*
1241    nextMove: fields[1] === 'b' ? 'black'
1242            : fields[1] === 'w' ? 'white' : 'unknown',
1243    castling: f2 === '-' ? {} : {
1244      w: {
1245        k: 0 < f2.indexOf('K'),
1246        q: 0 < f2.indexOf('Q'),
1247      },
1248      b: {
1249        k: 0 < f2.indexOf('k'),
1250        q: 0 < f2.indexOf('q'),
1251      }
1252    },
1253    enpassantTarget: fields[3] === '-' ? null : fields[3],
1254    halfmoves: Number(fields[4]),
1255    fullmoves: Number(fields[5]),
1256    */
1257  }
1258}
1259
1260var chessSymbols = {
1261  ' ': [' ', ''],
1262  P: ['♙', 'white', 'pawn'],
1263  N: ['♘', 'white', 'knight'],
1264  B: ['♗', 'white', 'bishop'],
1265  R: ['♖', 'white', 'rook'],
1266  Q: ['♕', 'white', 'queen'],
1267  K: ['♔', 'white', 'king'],
1268  p: ['♟', 'black', 'pawn'],
1269  n: ['♞', 'black', 'knight'],
1270  b: ['♝', 'black', 'bishop'],
1271  r: ['♜', 'black', 'rook'],
1272  q: ['♛', 'black', 'queen'],
1273  k: ['♚', 'black', 'king'],
1274}
1275
1276function chessPieceName(c) {
1277  return chessSymbols[c] && chessSymbols[c][2] || '?'
1278}
1279
1280function renderChessSymbol(c, loc) {
1281  var info = chessSymbols[c] || ['?', '', 'unknown']
1282  return h('span.symbol', {
1283    title: info[1] + ' ' + info[2] + (loc ? ' at ' + loc : '')
1284  }, info[0])
1285}
1286
1287function chessLocToIdxs(loc) {
1288  var m = /^([a-h])([1-8])$/.exec(loc)
1289  if (m) return [8 - m[2], m[1].charCodeAt(0) - 97]
1290}
1291
1292function lookupPiece(board, loc) {
1293  var idxs = chessLocToIdxs(loc)
1294  return idxs && board[idxs[0]] && board[idxs[0]][idxs[1]]
1295}
1296
1297function chessIdxsToLoc(i, j) {
1298  return 'abcdefgh'[j] + (8-i)
1299}
1300
1301RenderMsg.prototype.chessBoard = function (board) {
1302  if (!board) return ''
1303  return h('table.chess-board',
1304    board.map(function (rank, i) {
1305      return h('tr', rank.map(function (piece, j) {
1306        var dark = (i ^ j) & 1
1307        return h('td', {
1308          class: 'chess-square chess-square-' + (dark ? 'dark' : 'light'),
1309        }, renderChessSymbol(piece, chessIdxsToLoc(i, j)))
1310      }))
1311    })
1312  )
1313}
1314
1315RenderMsg.prototype.chessMove = function (cb) {
1316  var self = this
1317  var c = self.c
1318  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1319  var game = parseChess(fen)
1320  var piece = game && lookupPiece(game.board, c.dest)
1321  self.link(self.c.root, function (err, rootLink) {
1322    if (err) return cb(err)
1323    self.wrap([
1324      h('div', h('small', '> ', rootLink)),
1325      h('p',
1326        // 'player ', (c.ply || ''), ' ',
1327        'moved ', (piece ? [renderChessSymbol(piece), ' '] : ''),
1328        'from ' + c.orig, ' ',
1329        'to ' + c.dest
1330      ),
1331      self.chessBoard(game.board)
1332    ], cb)
1333  })
1334}
1335
1336RenderMsg.prototype.chessInvite = function (cb) {
1337  var self = this
1338  var myColor = self.c.myColor
1339  self.link(self.c.inviting, function (err, link) {
1340    if (err) return cb(err)
1341    self.wrapMini([
1342      'invites ', link, ' to play chess',
1343      // myColor ? h('p', 'my color is ' + myColor) : ''
1344    ], cb)
1345  })
1346}
1347
1348RenderMsg.prototype.chessInviteTitle = function (cb) {
1349  var self = this
1350  var done = multicb({pluck: 1, spread: true})
1351  self.getName(self.c.inviting, done())
1352  self.getName(self.msg.value.author, done())
1353  done(function (err, inviteeLink, inviterLink) {
1354    if (err) return cb(err)
1355    self.wrap([
1356      'chess: ', inviterLink, ' vs. ', inviteeLink
1357    ], cb)
1358  })
1359}
1360
1361RenderMsg.prototype.chessInviteAccept = function (cb) {
1362  var self = this
1363  self.getMsg(self.c.root, function (err, rootMsg) {
1364    if (err) return cb(err)
1365    self.link(rootMsg.value.author, function (err, rootAuthorLink) {
1366      if (err) return cb(err)
1367      self.wrapMini([
1368        'accepts ',
1369        h('a', {href: self.toUrl(rootMsg.key)}, 'invitation to play chess'), ' ',
1370        'with ', rootAuthorLink
1371      ], cb)
1372    })
1373  })
1374}
1375
1376RenderMsg.prototype.chessGameEnd = function (cb) {
1377  var self = this
1378  var c = self.c
1379  if (c.status === 'resigned') return self.link(self.c.root, function (err, rootLink) {
1380    if (err) return cb(err)
1381    self.wrap([
1382      h('div', h('small', '> ', rootLink)),
1383      h('p', h('strong', 'resigned'))
1384    ], cb)
1385  })
1386
1387  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1388  var game = parseChess(fen)
1389  var piece = game && lookupPiece(game.board, c.dest)
1390  var done = multicb({pluck: 1, spread: true})
1391  self.link(self.c.root, done())
1392  self.link(self.c.winner, done())
1393  done(function (err, rootLink, winnerLink) {
1394    if (err) return cb(err)
1395    self.wrap([
1396      h('div', h('small', '> ', rootLink)),
1397      h('p',
1398        'moved ', (piece ? [renderChessSymbol(piece), ' '] : ''),
1399        'from ' + c.orig, ' ',
1400        'to ' + c.dest
1401      ),
1402      h('p',
1403        h('strong', self.c.status), '. winner: ', h('strong', winnerLink)),
1404      self.chessBoard(game.board)
1405    ], cb)
1406  })
1407}
1408
1409RenderMsg.prototype.chessChat = function (cb) {
1410  var self = this
1411  self.link(self.c.root, function (err, rootLink) {
1412    if (err) return cb(err)
1413    self.wrap([
1414      h('div', h('small', '> ', rootLink)),
1415      h('p', String(self.c.msg))
1416    ], cb)
1417  })
1418}
1419
1420RenderMsg.prototype.chessMove = function (cb) {
1421  if (this.opts.full) return this.chessMoveFull(cb)
1422  return this.chessMoveMini(cb)
1423}
1424
1425RenderMsg.prototype.chessMoveFull = function (cb) {
1426  var self = this
1427  var c = self.c
1428  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1429  var game = parseChess(fen)
1430  var piece = game && lookupPiece(game.board, c.dest)
1431  self.link(self.c.root, function (err, rootLink) {
1432    if (err) return cb(err)
1433    self.wrap([
1434      h('div', h('small', '> ', rootLink)),
1435      h('p',
1436        // 'player ', (c.ply || ''), ' ',
1437        'moved ', (piece ? [renderChessSymbol(piece), ' '] : ''),
1438        'from ' + c.orig, ' ',
1439        'to ' + c.dest
1440      ),
1441      self.chessBoard(game.board)
1442    ], cb)
1443  })
1444}
1445
1446RenderMsg.prototype.chessMoveMini = function (cb) {
1447  var self = this
1448  var c = self.c
1449  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1450  var game = parseChess(fen)
1451  var piece = game && lookupPiece(game.board, c.dest)
1452  self.link(self.c.root, function (err, rootLink) {
1453    if (err) return cb(err)
1454    self.wrapMini([
1455      'moved ', chessPieceName(piece), ' ',
1456      'to ' + c.dest
1457    ], cb)
1458  })
1459}
1460
1461RenderMsg.prototype.acmeChallengesHttp01 = function (cb) {
1462  var self = this
1463  self.wrapMini(h('span',
1464    'serves ',
1465    hJoin(u.toArray(self.c.challenges).filter(Boolean).map(function (challenge) {
1466      return h('a', {
1467        href: 'http://' + challenge.domain +
1468          '/.well-known/acme-challenge/' + challenge.token,
1469        title: challenge.keyAuthorization,
1470      }, String(challenge.domain))
1471    }), ', ', ', and ')
1472  ), cb)
1473}
1474
1475RenderMsg.prototype.bookclub = function (cb) {
1476  var self = this
1477  var props = self.c.common || self.c
1478  var images = u.toLinkArray(props.image || props.images)
1479  self.wrap(h('table', h('tr',
1480    h('td',
1481      images.map(function (image) {
1482        return h('a', {href: self.render.toUrl(image.link)}, h('img', {
1483          src: self.render.imageUrl(image.link),
1484          alt: image.name || ' ',
1485          width: 180,
1486        }))
1487      })),
1488    h('td',
1489      h('h4', String(props.title)),
1490      props.authors ?
1491        h('p', h('em', String(props.authors)))
1492        : '',
1493      props.description
1494        ? h('div', {innerHTML: self.render.markdown(props.description)})
1495        : ''
1496    )
1497  )), cb)
1498}
1499
1500RenderMsg.prototype.bookclubTitle = function (cb) {
1501  var props = this.c.common || this.c
1502  cb(null, props.title || 'book')
1503}
1504
1505RenderMsg.prototype.sombrioPosition = function () {
1506  return h('span', '[' + this.c.position + ']')
1507}
1508
1509RenderMsg.prototype.sombrioWall = function (cb) {
1510  var self = this
1511  self.wrapMini(h('span',
1512    self.sombrioPosition(),
1513    ' wall'
1514  ), cb)
1515}
1516
1517RenderMsg.prototype.sombrioTombstone = function (cb) {
1518  var self = this
1519  self.wrapMini(h('span',
1520    self.sombrioPosition(),
1521    ' tombstone'
1522  ), cb)
1523}
1524
1525RenderMsg.prototype.sombrioScore = function (cb) {
1526  var self = this
1527  self.wrapMini(h('span',
1528    'scored ',
1529    h('ins', String(self.c.score))
1530  ), cb)
1531}
1532
1533RenderMsg.prototype.blog = function (cb) {
1534  var self = this
1535  var blogId = u.linkDest(self.c.blog)
1536  var imgId = u.linkDest(self.c.thumbnail)
1537  var imgLink = imgId ? u.toLinkArray(self.c.mentions).filter(function (link) {
1538    return link.link === imgId
1539  })[0] || u.toLink(self.c.thumbnail) : null
1540  self.wrapMini(h('table', h('tr',
1541    h('td',
1542      imgId ? h('img', {
1543        src: self.render.imageUrl(imgId),
1544        alt: (imgLink.name || '')
1545          + (imgLink.size != null ? ' (' + self.render.formatSize(imgLink.size) + ')' : ''),
1546        width: 180,
1547      }) : 'blog'),
1548    h('td',
1549      blogId ? h('h3', h('a', {href: self.render.toUrl('/markdown/' + blogId)},
1550        String(self.c.title || self.msg.key))) : '',
1551      String(self.c.summary || ''))
1552  )), cb)
1553}
1554
1555RenderMsg.prototype.imageMap = function (cb) {
1556  var self = this
1557  var imgLink = u.toLink(self.c.image)
1558  var imgRef = imgLink && imgLink.link
1559  var mapName = 'map' + u.token()
1560  self.wrap(h('div', [
1561    h('map', {name: mapName},
1562      u.toArray(self.c.areas).map(function (areaLink) {
1563        var href = areaLink && self.toUrl(areaLink.link)
1564        return href ? h('area', {
1565          shape: String(areaLink.shape),
1566          coords: String(areaLink.coords),
1567          href: href,
1568        }) : ''
1569      })
1570    ),
1571    imgRef && imgRef[0] === '&' ? h('img', {
1572      src: self.render.imageUrl(imgRef),
1573      width: Number(imgLink.width) || undefined,
1574      height: Number(imgLink.height) || undefined,
1575      alt: String(imgLink.name || ''),
1576      usemap: '#' + mapName,
1577    }) : ''
1578  ]), cb)
1579}
1580
1581RenderMsg.prototype.skillCreate = function (cb) {
1582  var self = this
1583  self.wrapMini(h('span',
1584    ' created skill ',
1585    h('ins', String(self.c.name))
1586  ), cb)
1587}
1588
1589RenderMsg.prototype.ideaCreate = function (cb) {
1590  var self = this
1591  self.wrapMini(h('span',
1592    ' has an idea'
1593  ), cb)
1594}
1595
1596RenderMsg.prototype.skillSimilarity = function (cb) {
1597  var self = this
1598  var done = multicb({pluck: 1, spread: true})
1599  self.link(self.c.skillKey1, done())
1600  self.link(self.c.skillKey2, done())
1601  var similarity = !!self.c.similarity
1602  done(function (err, skill1, skill2) {
1603    self.wrapMini(h('span',
1604      'considers ', skill1, ' to be ',
1605      similarity ? 'similar to ' : 'not similar to ',
1606      skill2
1607    ), cb)
1608  })
1609}
1610
1611RenderMsg.prototype.identitySkillAssign = function (cb) {
1612  var self = this
1613  self.link(self.c.skillKey, function (err, a) {
1614    self.wrapMini(h('span',
1615      self.c.action === 'assign' ? 'assigns '
1616        : self.c.action === 'unassign' ? 'unassigns '
1617        : h('code', String(self.c.action)), ' ',
1618      'skill ', a
1619    ), cb)
1620  })
1621}
1622
1623RenderMsg.prototype.ideaSkillAssign = function (cb) {
1624  var self = this
1625  var done = multicb({pluck: 1, spread: true})
1626  self.link(self.c.skillKey, done())
1627  self.link(self.c.ideaKey, done())
1628  done(function (err, skillA, ideaA) {
1629    self.wrapMini(h('span',
1630      self.c.action === 'assign' ? 'assigns '
1631        : self.c.action === 'unassign' ? 'unassigns '
1632        : h('code', String(self.c.action)), ' ',
1633      'skill ', skillA,
1634      ' to idea ',
1635      ideaA
1636    ), cb)
1637  })
1638}
1639
1640RenderMsg.prototype.ideaAssocate = function (cb) {
1641  var self = this
1642  self.link(self.c.ideaKey, function (err, a) {
1643    self.wrapMini(h('span',
1644      self.c.action === 'associate' ? 'associates with '
1645        : self.c.action === 'disassociate' ? 'disassociates with '
1646        : h('code', String(self.c.action)), ' ',
1647      'idea ', a
1648    ), cb)
1649  })
1650}
1651
1652RenderMsg.prototype.ideaHat = function (cb) {
1653  var self = this
1654  self.link(self.c.ideaKey, function (err, a) {
1655    self.wrapMini(h('span',
1656      self.c.action === 'take' ? 'takes '
1657        : self.c.action === 'discard' ? 'discards '
1658        : h('code', String(self.c.action)), ' ',
1659      'idea ', a
1660    ), cb)
1661  })
1662}
1663
1664RenderMsg.prototype.ideaUpdate = function (cb) {
1665  var self = this
1666  var done = multicb({pluck: 1, spread: true})
1667  var props = {}
1668  for (var k in self.c) {
1669    if (k !== 'ideaKey' && k !== 'type' && k !== 'talenet-version') {
1670      props[k] = self.c[k]
1671    }
1672  }
1673  var keys = Object.keys(props).sort().join()
1674
1675  if (keys === 'title') {
1676    return self.wrapMini(h('span',
1677      'titles idea ',
1678      h('a', {href: self.toUrl(self.c.ideaKey)}, String(props.title))
1679    ), cb)
1680  }
1681
1682  if (keys === 'description') {
1683    return self.link(self.c.ideaKey, function (err, a) {
1684      self.wrap(h('div',
1685        'describes idea ', a, ':',
1686        h('blockquote', {innerHTML: self.render.markdown(props.description)})
1687      ), cb)
1688    })
1689  }
1690
1691  if (keys === 'description,title') {
1692    return self.wrap(h('div',
1693      'describes idea ',
1694      h('a', {href: self.toUrl(self.c.ideaKey)}, String(props.title)),
1695      ':',
1696      h('blockquote', {innerHTML: self.render.markdown(props.description)})
1697    ), cb)
1698  }
1699
1700  self.link(self.c.ideaKey, done())
1701  var table = self.valueTable(props, 1, done())
1702  done(function (err, ideaA) {
1703    self.wrap(h('div', [
1704      'updates idea ', ideaA,
1705      table
1706    ]), cb)
1707  })
1708}
1709
1710RenderMsg.prototype.ideaComment = function (cb) {
1711  var self = this
1712  var done = multicb({pluck: 1, spread: true})
1713  self.link(self.c.ideaKey, done())
1714  self.link(self.c.commentKey, done())
1715  done(function (err, ideaLink, commentLink) {
1716    if (err) return self.wrap(u.renderError(err), cb)
1717    self.wrap(h('div', [
1718      ideaLink ? h('div', h('small', h('span.symbol', '→'), ' idea ', ideaLink)) : '',
1719      commentLink ? h('div', h('small', h('span.symbol', '↳'), ' comment ', commentLink)) : '',
1720      self.c.text ?
1721        h('div', {innerHTML: self.render.markdown(self.c.text)}) : ''
1722    ]), cb)
1723  })
1724}
1725
1726RenderMsg.prototype.aboutResource = function (cb) {
1727  var self = this
1728  return self.wrap(h('div',
1729    'describes resource ',
1730    h('a', {href: self.toUrl(self.c.about)}, String(self.c.name)),
1731    ':',
1732    h('blockquote', {innerHTML: self.render.markdown(self.c.description)})
1733  ), cb)
1734}
1735
1736RenderMsg.prototype.lineComment = function (cb) {
1737  var self = this
1738  var done = multicb({pluck: 1, spread: true})
1739  self.link(self.c.repo, done())
1740  self.getMsg(self.c.updateId, done())
1741  done(function (err, repoLink, updateMsg) {
1742    if (err) return cb(err)
1743    return self.wrap(h('div',
1744      h('div', h('small', '> ',
1745        repoLink, ' ',
1746        h('a', {
1747          href: self.toUrl(self.c.updateId)
1748        },
1749          updateMsg
1750            ? htime(new Date(updateMsg.value.timestamp))
1751            : String(self.c.updateId)
1752        ), ' ',
1753        h('a', {
1754          href: self.toUrl('/git/commit/' + self.c.commitId + '?msg=' + encodeURIComponent(self.c.updateId))
1755        }, String(self.c.commitId).substr(0, 8)), ' ',
1756        h('a', {
1757          href: self.toUrl('/git/line-comment/' +
1758            encodeURIComponent(self.msg.key || JSON.stringify(self.msg)))
1759        }, h('code', self.c.filePath + ':' + self.c.line))
1760      )),
1761      self.c.text ?
1762        h('div', {innerHTML: self.markdown()}) : ''), cb)
1763  })
1764}
1765
1766RenderMsg.prototype.webInit = function (cb) {
1767  var self = this
1768  var url = '/web/' + encodeURIComponent(this.msg.key)
1769  self.wrapMini(h('a',
1770    {href: this.toUrl(url)},
1771    'website'
1772  ), cb)
1773}
1774
1775RenderMsg.prototype.webRoot = function (cb) {
1776  var self = this
1777  var site = u.isRef(this.c.site) && this.c.site
1778  var root = u.isRef(this.c.root) && this.c.root
1779  self.wrapMini(h('span',
1780    'updated website ',
1781    site ? [
1782      h('a', {href: this.toUrl('/web/' + encodeURIComponent(site))}, site.substr(0, 8) + '…'), ' '
1783    ] : '',
1784    root ? [
1785      'to ', h('a', {href: this.toUrl(root)}, root.substr(0, 8) + '…')
1786    ] : ''
1787  ), cb)
1788}
1789
1790RenderMsg.prototype.poll = function (cb) {
1791  var self = this
1792  var closeDate = new Date(self.c.closesAt)
1793  var details = self.c.pollDetails || self.c.details || {}
1794  var choices = u.toArray(details.choices)
1795  return self.wrap(h('div',
1796    h('h3', {innerHTML: u.unwrapP(self.render.markdown(self.c.title))}),
1797    h('div', {innerHTML: u.unwrapP(self.render.markdown(self.c.body, self.c.mentions))}),
1798    h('p', 'closes at: ', h('span', {
1799      title: closeDate.toLocaleString()
1800    }, closeDate.toString())),
1801    details.type === 'chooseOne' ?  h('form', {method: 'post', action: ''},
1802      h('p', 'Choose one'),
1803      h('input', {type: 'hidden', name: 'action', value: 'poll-position'}),
1804      h('input', {type: 'hidden', name: 'poll_root', value: self.msg.key}),
1805      h('input', {type: 'hidden', name: 'poll_type', value: 'chooseOne'}),
1806      choices.map(function (choice, i) {
1807        return h('div',
1808          h('input', {type: 'radio', name: 'poll_choice', value: i}), ' ', String(choice))
1809      }),
1810      h('p', 'reason: ',
1811        h('div', h('textarea', {name: 'poll_reason'}))
1812      ),
1813      u.toArray(this.opts.branches).filter(function (branch) {
1814        return branch !== self.msg.key
1815      }).map(function (branch) {
1816        return h('input', {type: 'hidden', name: 'branches', value: branch})
1817      }),
1818      h('p', h('input', {type: 'submit', value: 'preview publish position'}))
1819    ) : h('div', 'unknown poll type')
1820  ), cb)
1821}
1822
1823RenderMsg.prototype.position = function (cb) {
1824  if (this.c.version === 'v1') return this.pollPosition(cb)
1825  return this.object(cb)
1826}
1827
1828RenderMsg.prototype.pollPosition = function (cb) {
1829  var self = this
1830  var details = self.c.pollDetails || self.c.details || self.c
1831  var reason = self.c.reason || ''
1832  var done = multicb({pluck: 1, spread: true})
1833  self.link(self.c.root, done())
1834  self.links(self.c.branch, done())
1835  var msgCb = done()
1836  self.app.getMsg(self.c.root, function (err, msg) {
1837    // ignore error getting root message... it's not that important
1838    msgCb(null, msg)
1839  })
1840  done(function (err, rootLink, branchLinks, rootMsg) {
1841    if (err) return cb(err)
1842    var rootContent = rootMsg && rootMsg.value.content || {}
1843    var rootDetails = rootContent.pollDetails || rootContent.details || rootContent
1844    var choices = u.toArray(rootDetails.choices)
1845    var choice = details.choice != null && choices && choices[details.choice]
1846    return self.wrap(h('div',
1847      rootLink ? h('div', h('small', h('span.symbol', '→'), ' ', rootLink)) : '',
1848      branchLinks.map(function (a, i) {
1849        return h('div', h('small', h('span.symbol', '  ↳'), ' ', a))
1850      }),
1851      h('p',
1852        'picked ',
1853        choice ? h('q', choice) : ['choice ', String(details.choice || '?')]
1854      ),
1855      reason ? h('div', {innerHTML: self.render.markdown(reason, self.c.mentions)}) : ''
1856    ), cb)
1857  })
1858}
1859
1860RenderMsg.prototype.scat = function (cb) {
1861  this.wrapMini([
1862    this.c.action ? '' : 'chats ',
1863    h('q', String(this.c.text))
1864  ], cb)
1865}
1866
1867RenderMsg.prototype.share = function (cb) {
1868  var self = this
1869  var share = self.c.share || {}
1870  self.link(share.link, function (err, link) {
1871    self.wrapMini([
1872      'shares ',
1873      share.content === 'blog' ? 'blog '
1874        : share.content ? [h('code', String(share.content)), ' ']
1875        : '',
1876      link || String(share.link),
1877      share.url ? [
1878        ' at ',
1879        h('small', h('a', {href: self.toUrl(share.url)}, share.url))
1880      ] : '',
1881      share.text ? [
1882        ': ',
1883        h('q', String(share.text))
1884      ] : ''
1885    ], cb)
1886  })
1887}
1888
1889RenderMsg.prototype.tag = function (cb) {
1890  var done = multicb({pluck: 1, spread: true})
1891  var self = this
1892  if (self.c.message || self.c.root) {
1893    self.link(self.c.root, done())
1894    self.link(self.c.message, done())
1895    self.links(self.c.branch, done())
1896    done(function (err, rootLink, msgLink, branchLinks) {
1897      if (err) return self.wrap(u.renderError(err), cb)
1898      return self.wrap(h('div',
1899        branchLinks.map(function (a, i) {
1900          return h('div', h('small', h('span.symbol', '  ↳'), ' ', a))
1901        }),
1902        h('p',
1903          self.c.tagged ? 'tagged ' : 'untagged ',
1904          msgLink,
1905          rootLink ? [' as ', rootLink] : ''
1906        ),
1907      ), cb)
1908    })
1909  } else {
1910    self.wrapMini('tag', cb)
1911  }
1912}
1913
1914RenderMsg.prototype.tagTitle = function (cb) {
1915  var self = this
1916  if (!self.c.message && !self.c.root) {
1917    return self.app.getAbout(self.msg.key, function (err, about) {
1918      if (err) return cb(err)
1919      var name = about.name || about.title
1920        || (about.description && mdInline(about.description))
1921      cb(null, truncate(name ? name.replace(/^%/, '') : self.msg.key, 72))
1922    })
1923  }
1924  var done = multicb({pluck: 1, spread: true})
1925  self.getName(self.c.root, done())
1926  self.getName(self.c.message, done())
1927  done(function (err, rootName, msgName) {
1928    if (err) return cb(null, err.stack)
1929    cb(null, (self.c.tagged ? 'tagged ' : 'untagged ')
1930      + msgName + ' as ' + rootName)
1931  })
1932}
1933
1934RenderMsg.prototype.shard = function (cb) {
1935  // this.c.errors
1936  // this.c.version
1937  var self = this
1938  self.link(self.c.root, function (err, rootLink) {
1939    self.wrap(h('div', [
1940      h('div', h('small', h('span.symbol', '  ↳'), ' dark-crystal ', rootLink || '?')),
1941      h('p', [
1942        h('a', {
1943          href: self.toUrl('/shard/' + encodeURIComponent(self.msg.key)),
1944          title: 'view shard'
1945        }, 'shard')
1946      ])
1947    ]), cb)
1948  })
1949}
1950
1951RenderMsg.prototype.invite = function (cb) {
1952  // this.c.version
1953  var self = this
1954  self.link(self.c.root, function (err, rootLink) {
1955    self.wrap(h('div', [
1956      h('div', h('small', h('span.symbol', '  ↳'), ' ', rootLink || '?')),
1957      self.c.body ? h('div', {innerHTML: self.render.markdown(self.c.body)}) : '',
1958    ]), cb)
1959  })
1960}
1961
1962RenderMsg.prototype.pickIgoFn = function () {
1963  switch (this.c.tag) {
1964    case 'App.IgoMsg.Kibitz': return this.igoKibitz
1965    case 'App.IgoMsg.OfferMatch': return this.igoOfferMatch
1966    case 'App.IgoMsg.AcceptMatch': return this.igoAcceptMatch
1967    case 'App.IgoMsg.PlayMove': return this.igoPlayMove
1968  }
1969}
1970
1971RenderMsg.prototype.igo = function (cb) {
1972  var self = this
1973  var fn = self.pickIgoFn()
1974  if (!fn) return self.object(cb)
1975  var done = multicb({pluck: 1})
1976  u.toArray(this.c.values).forEach(function (value) {
1977    fn.call(self, value, done())
1978  })
1979  done(function (err, els) {
1980    if (err) return self.wrap(u.renderError(err), cb)
1981    if (els.length === 1 && els[0].tagName === 'span')  return self.wrapMini(els[0], cb)
1982    self.wrap(h('div', els), cb)
1983  })
1984}
1985
1986RenderMsg.prototype.igoKibitz = function (value, cb) {
1987  var self = this
1988  var text = value && value.text
1989  self.link(value.move, function (err, moveLink) {
1990    cb(null, h('div', [
1991      h('div', h('small', h('span.symbol', '  ↳'), ' ', moveLink || '?')),
1992      text ? h('div', {innerHTML: self.render.markdown(text)}) : ''
1993    ]))
1994  })
1995}
1996
1997RenderMsg.prototype.igoOfferMatch = function (value, cb) {
1998  var self = this
1999  var terms = self.c.terms || {}
2000  var size = Number(terms.size)
2001  var komi = Number(terms.komi)
2002  var handicap = Number(terms.handicap)
2003  var opponentId = value.opponentKey
2004  /*
2005  var myColor = self.c.myColor || {}
2006  var color =
2007    myColor.tag === 'App.IgoMsg.Black' ? 'black ●' :
2008    myColor.tag === 'App.IgoMsg.White' ? 'white ○' :
2009    '?'
2010  */
2011  self.link(opponentId, function (err, opponentLink) {
2012    cb(null, h('span', [
2013      'invites ',
2014      opponentLink,
2015      ' to play Go'
2016    ]))
2017  })
2018}
2019
2020RenderMsg.prototype.igoAcceptMatch = function (value, cb) {
2021  var self = this
2022  /*
2023  var terms = self.c.terms || {}
2024  var size = Number(terms.size)
2025  var komi = Number(terms.komi)
2026  var handicap = Number(terms.handicap)
2027  */
2028  self.getMsg(value.offerKey, function (err, offerMsg) {
2029    if (err) return cb(err)
2030    self.link(offerMsg && offerMsg.value.author, function (err, offerAuthorLink) {
2031      if (err) return cb(err)
2032      cb(null, h('span',
2033        'accepts ',
2034        h('a', {href: self.toUrl(offerMsg && offerMsg.key)}, 'invitation to play Go'), ' ',
2035        'with ', offerAuthorLink
2036      ))
2037    })
2038  })
2039}
2040
2041RenderMsg.prototype.igoPlayMove = function (value, cb) {
2042  var self = this
2043  // value.subjectiveMoveNum
2044  var move = value.move || {}
2045  if (move.tag === 'App.IgoMsg.PlayStone') {
2046    var moveValues = u.toArray(move.values)
2047    if (moveValues.length === 1) {
2048      var moveValue = moveValues[0]
2049      if (moveValue.tag === 'App.IgoMsg.BoardPosition') {
2050        var boardPosValues = moveValue.values
2051        if (boardPosValues.length === 1) {
2052          var boardPos = boardPosValues[0]
2053          var x = Number(boardPos.x)
2054          var y = Number(boardPos.y)
2055          return cb(null, h('span',
2056            'placed a stone at ',
2057            '[' + x + ', ' + y + ']'))
2058        }
2059      }
2060    }
2061  }
2062
2063  var table = self.valueTable(move, 2, function (err) {
2064    cb(err, table)
2065  })
2066}
2067

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