git ssb

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const nest = require('depnest')
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const { h, computed, onceTrue, Value, watch } = require('mutant')
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const merge = require('lodash/merge')
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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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  'about.html.image': 'first',
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  'about.obs.name': 'first',
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  'app.html.settings': 'map',
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  'sbot.obs.connection': 'first',
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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 pubHopAll = 3
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exports.create = function (api) {
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  return nest({
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    'app.html.settings': pubHopConnections
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  })
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  function pubHopConnections () {
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    let hops = Value(api.config.sync.get('friendPub.hops', pubHopAll))
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    hops.initial = hops()
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    let pubs = Value({})
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    watch(hops, hops => {
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      updateConfig(hops)
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      updatePubs(hops)
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    })
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    return {
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      title: 'Pub gossip',
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      body: h('FriendPub', [
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        h('div.description', [
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          'Limit gossip with pubs based on who owns the pub'
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        ]),
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        h('div.slider', [
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          h('datalist', { id: 'pub-gossip-datalist' }, [
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            h('option', { value: 0, label: 'My pub' }),
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            h('option', { value: 1, label: 'My friend' }),
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            h('option', { value: 2, label: 'A friends friend' }),
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            h('option', { value: 3, label: 'Any pub' })
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          ]),
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          h('input', {
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            type: 'range',
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            attributes: { list: 'pub-gossip-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(ev.target.value)
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          })
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        ]),
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        computed(hops, (_hops) => {
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          if (_hops === hops.initial) return
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          return h('div.alert', [
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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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        Pubs(pubs)
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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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        friendPub: { hops },
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        gossip: hops >= 3
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          ? { friends: true, global: true }
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          : { friends: true, global: false }
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      })
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      api.config.sync.setCustom(next)
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    }
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    function updatePubs (hops) {
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      onceTrue(api.sbot.obs.connection, sbot => {
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        if (hops === pubHopAll) pubs.set({})
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        else {
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          sbot.friendPub.pubsWithinHops(hops, (_, pubsInHops) => {
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            pubs.set(pubsInHops)
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          })
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        }
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      })
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    }
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  }
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  function Pubs (pubs) {
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    return h('Pubs', [
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      h('div.description', 'Pubs you this means you will gossip with:'),
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      h('div.pubs', computed([pubs], function (pubs) {
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        return Object.values(pubs).map(pub => pubImageLink(pub.id, pub.owner))
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      }))
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    ])
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  }
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  function pubImageLink (id, ownerId) {
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    return h('a', {
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      href: id,
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      title: computed([api.about.obs.name(id), api.about.obs.name(ownerId)], (name, ownerName) => {
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        return '@' + name + ', owner ' + ownerName
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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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