git ssb

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const nest = require('depnest')
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const { h, computed, map, send, when, onceTrue } = require('mutant')
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const TagHelper = require('scuttle-tag')
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const msgs = require('ssb-msgs')
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exports.gives = nest('message.html.metas')
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exports.needs = nest({
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  'message.obs.likeCount': 'first',
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  'sheet.profiles': 'first',
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  'about.obs.name': 'first',
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  'intl.sync.i18n': 'first',
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  'intl.sync.i18n_n': 'first',
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  'sbot.obs.connection': 'first',
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  'sheet.tags.render': 'first',
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  'about.html.image': 'first'
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})
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exports.create = function (api) {
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  const i18n = api.intl.sync.i18n
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  const plural = api.intl.sync.i18n_n
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  return nest('message.html.metas', function likes (msg) {
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    const ScuttleTag = TagHelper(api.sbot.obs.connection)
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    const result = []
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    if (msg.value.private) {
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      result.push(h('span.private', map(msg.value.content.recps, id => {
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        const feed = msgs.link(id, 'feed')
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        if (!feed) return
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        id = feed.link
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        return h('a', {
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          href: id,
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          title: api.about.obs.name(id)
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        }, [
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          api.about.html.image(id)
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        ])
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      })))
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    }
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    if (msg.value.content && msg.value.content.channel && msg.value.content.type !== 'channel') {
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      result.push(h('a.channel', { href: `#${msg.value.content.channel}` }, [`#${msg.value.content.channel}`]))
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    }
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    if (msg.key) {
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      const likeCount = api.message.obs.likeCount(msg.key)
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      result.push(
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        h('div.counts', [
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          when(likeCount,
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            h('a.likes', {
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              href: '#', 'ev-click': send(displayLikes, msg)
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            }, computed(['%s likes', likeCount], plural))
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          ),
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          computed(ScuttleTag.obs.messageTags(msg.key), (tags) => tagCount(msg.key, tags))
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        ])
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      )
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    }
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    return result
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  })
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  function displayLikes (msg) {
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    onceTrue(api.sbot.obs.connection, (sbot) => {
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      sbot.patchwork.likes.get({ dest: msg.key }, (err, likes) => {
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        if (err) return console.log(err)
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        api.sheet.profiles(likes, i18n('Liked by'))
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      })
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    })
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  }
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  function tagCount (msgId, tags) {
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    if (tags.length) {
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      return [' ', h('a.tags', {
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        title: tagList('Tags', tags),
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        href: '#',
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        'ev-click': send(displayTags, { msgId, tags })
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      }, [`${tags.length} ${tags.length === 1 ? 'tag' : 'tags'}`])]
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    }
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  }
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  function tagList (prefix, ids) {
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    const items = map(ids, api.about.obs.name)
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    return computed([prefix, items], (prefix, names) => {
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      return (prefix ? (prefix + '\n') : '') + names.map((n) => `- ${n}`).join('\n')
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    })
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  }
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  function displayTags ({ msgId, tags }) {
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    api.sheet.tags.render(msgId, tags)
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  }
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}
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