git ssb

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const fs = require('fs')
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const h = require('../h')
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//render a message when someone follows someone,
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//so you see new users
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function isRelated(value, name) {
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  return value ? name : value === false ? 'un'+name : ''
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}
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exports.needs = {
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  avatar: 'first',
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  avatar_name: 'first',
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  avatar_link: 'first',
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  message_confirm: 'first',
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  follower_of: 'first'
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}
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exports.gives = {
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  message_content: true,
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  message_content_mini: true,
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  avatar_action: true,
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  mcss: true
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}
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exports.create = function (api) {
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  return {
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    message_content_mini,
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    message_content,
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    avatar_action,
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    mcss: () => fs.readFileSync(__filename.replace(/js$/, 'mcss'), 'utf8')
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  }
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  function message_content_mini (msg) {
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    const { type, contact, following, blocking } = msg.value.content
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    if(type == 'contact' && contact) {
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      var relation = isRelated(following, 'follows')
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      if(blocking) relation = 'blocks'
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      return [
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        relation,
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        ' ',
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        api.avatar_link(contact, api.avatar_name(contact), '')
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      ]
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    }
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  }
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  function message_content (msg) {
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    const { type, contact, following, blocking } = msg.value.content
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    if(type == 'contact' && contact) {
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      var relation = isRelated(following, 'follows')
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      if(blocking) relation = 'blocks'
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      return h('div.contact', [
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        relation, 
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        api.avatar(contact, 'thumbnail')
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      ])
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    }
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  }
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  function avatar_action (id) {
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    var follows_you, you_follow
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    var self_id = require('../keys').id
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    api.follower_of(self_id, id, (err, f) => {
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      you_follow = f || false
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      update()
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    })
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    api.follower_of(id, self_id, (err, f) => {
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      follows_you = f || false
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      update()
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    })
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    var followBtn = h('button', { 'ev-click': toggleFollow }, 'loading')
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    var state = h('label', 'loading')
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    function update () {
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      state.textContent = (
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        follows_you && you_follow ? '- you are friends'
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      : follows_you               ? '- they follow you'
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      : you_follow                ? '- you are following'
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      :                             ''
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      )
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      // wait till finished loading before offering follow options
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      if (you_follow === undefined) return 
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      followBtn.textContent = you_follow ? 'unfollow' : 'follow'
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    }
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    return h('Follow', [
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      followBtn,
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      state
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    ])
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    function toggleFollow () {
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      if (followBtn.textContent === 'loading') return
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      const msg = {
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        type: 'contact',
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        contact: id,
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        following: !you_follow
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      }
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      api.message_confirm(msg, (err, msg) => {
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        if (err) return console.error(err)
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        you_follow = !you_follow
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        update()
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      })
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    }
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  }
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  return exports
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}
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