git ssb

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const pull = require('pull-stream')
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const nest = require('depnest')
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const { h, onceTrue } = require('mutant')
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const get = require('lodash/get')
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const { isBlob } = require('ssb-ref')
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exports.gives = nest({
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  'blog.html.title': true,
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  'blog.html.summary': true,
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  'blog.html.thumbnail': true,
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  'blog.html.content': true,
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})
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exports.needs = nest({
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  'message.html.markdown': 'first',
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  'sbot.pull.stream': 'first',
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  'sbot.obs.connection': 'first'
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})
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exports.create = function (api) {
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  function loadBlob (data) {
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    const { blog } = data.value.content
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    if (!isBlob(blog)) { 
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      console.log(`malformed Blog blog: ${blog}`, data)
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      return
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    }
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    onceTrue(
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      api.sbot.obs.connection(),
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      sbot => sbot.blobs.want(blog, (err, success) => {
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        if (err) throw err
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        console.log(`want blog ${blog}, callback: ${success}`)
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      })
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    )
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  }
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  return nest({
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    'blog.html.title': function (data) {
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      if(!isBlog(data)) return
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      return data.value.content.title
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    },
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    'blog.html.summary': function (data) {
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      if(!isBlog(data)) return
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      loadBlob(data)
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      return data.value.content.summary
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    },
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    'blog.html.thumbnail': function (data) {
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      if(!isBlog(data)) return
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      return data.value.content.thumbnail
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    },
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    'blog.html.content': function (data) {
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      if(!isBlog(data)) return
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      loadBlob(data)
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      var div = h('Markdown')
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      pull(
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        api.sbot.pull.stream(function (sbot) {
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          return sbot.blobs.get(data.value.content.blog)
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        }),
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        pull.collect(function (err, ary) {
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          if(err) return
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          var md = api.message.html.markdown({text: Buffer.concat(ary).toString()})
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          div.innerHTML = md.innerHTML
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        })
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      )
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      return div
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    }
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  })
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}
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function isBlog (msg) {
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  return get(msg, 'value.content.type') === 'blog'
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}
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