git ssb

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const nest = require('depnest')
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const { h, computed, Value, watch } = require('mutant')
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const merge = require('lodash/merge')
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const fs = require('fs')
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const { join } = require('path')
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exports.gives = nest({
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  'app.html.settings': true
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})
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exports.needs = nest({
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  'app.html.settings': 'map',
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  'config.sync.get': 'first',
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  'config.sync.getCustom': 'first',
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  'config.sync.setCustom': 'first'
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})
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const friendsHops = 2
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exports.create = function (api) {
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  return nest({
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    'app.html.settings': friendHopsConnections
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  })
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  function friendHopsConnections () {
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    let hops = Value(api.config.sync.get('friends.hops', friendsHops))
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    hops.initial = hops()
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    watch(hops, hops => {
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      updateConfig(hops)
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    })
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    return {
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      group: 'replication',
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      title: 'Friend Hops',
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      body: h('FriendHops', [
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        h('div.description', [
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          'What you replicate (store a local copy of) is based on how many "hops" you replicate. If you replicate out to 1 hop, you are replicating the people you follow, at 2 hops, it is your follows and people they follow. Play with the slider to see this visualised in the graphic below!'
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        ]),
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        h('div.slider', [
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          h('datalist', { id: 'friends-hop-datalist' }, [
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            h('option', { value: 0, label: '0' }),
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            h('option', { value: 1, label: '1' }),
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            h('option', { value: 2, label: '2' }),
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            h('option', { value: 3, label: '3' })
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          ]),
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          h('input', {
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            type: 'range',
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            attributes: { list: 'friends-hop-datalist' },
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            min: 0,
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            max: 3,
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            value: hops,
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            'ev-change': (ev) => hops.set(parseInt(ev.target.value))
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          })
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        ]),
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        h('div.alert',
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          {
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            style: {
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              opacity: computed(hops, (_hops) => (_hops === hops.initial) ? 0 : 1)
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            }
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          },
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          [
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            h('i.fa.fa-warning'),
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            ' please restart patchbay for this to take effect'
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          ]
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        ),
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        h('FollowGraph', {
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          className: computed(hops, hops => {
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            switch (hops) {
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              case 0: return '-zero'
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              case 1: return '-one'
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              case 2: return '-two'
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              default: return '-three'
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            }
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          }),
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          innerHTML: fs.readFileSync(join(__dirname, 'friend-hops-graph.svg'), 'utf8')
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        })
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      ])
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    }
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  }
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  function updateConfig (hops) {
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    const configCustom = api.config.sync.getCustom()
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    const next = merge({}, configCustom, {
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      friends: { hops }
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    })
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    api.config.sync.setCustom(next)
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  }
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}
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