git ssb

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var h = require('hyperscript')
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var pull = require('pull-stream')
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function all(stream, cb) {
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  pull(stream, pull.collect(cb))
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}
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var plugs = require('../plugs')
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var getAvatar = require('ssb-avatar')
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var sbot_links2 = plugs.first(exports.sbot_links2 = [])
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var sbot_links = plugs.first(exports.sbot_links = [])
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var sbot_whoami = plugs.first(exports.sbot_whoami = [])
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exports.avatar_name =
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function name (id) {
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  var n = h('span', id.substring(0, 10))
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  //choose the most popular name for this person.
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  //for anything like this you'll see I have used sbot.links2
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  //which is the ssb-links plugin. as you'll see the query interface
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  //is pretty powerful!
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  //TODO: "most popular" name is easily gameable.
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  //must come up with something better than this.
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  /*
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    filter(rel: ['mentions', prefix('@')])
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      .reduce(name: rel[1], value: count())
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  */
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  all(
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    sbot_links2({query: [
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      {$filter: {rel: ['mentions', {$prefix: '@'}], dest: id}},
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      {$reduce: { name: ['rel', 1], count: {$count: true}
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      }}
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    ]}),
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    function (err, names) {
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      if(err) console.error(err), names = []
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      //if they have not been mentioned, fallback
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      //to patchwork style naming (i.e. self id)
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      if(!names.length)
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        return sbot_whoami(function (err, me) {
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          if (err) return console.error(err)
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          getAvatar({links: sbot_links}, me.id, id,
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            function (err, avatar) {
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              if (err) return console.error(err)
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              n.textContent = (avatar.name[0] == '@' ? '' : '@') + avatar.name
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            })
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        })
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      n.textContent = names.reduce(function (max, item) {
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        return max.count > item.count || item.name == '@' ? max : item
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      }, {name: id.substring(0, 10), count: 0}).name
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    })
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  return n
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}
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