git ssb

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var nest = require('depnest')
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var h = require('mutant/h')
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var computed = require('mutant/computed')
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var send = require('mutant/send')
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exports.needs = nest({
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  'about.obs.name': 'first',
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  'about.html.image': 'first',
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  'keys.sync.id': 'first',
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  'sheet.display': 'first',
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  'app.navigate': 'first',
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  'contact.obs': {
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    followers: 'first',
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    following: 'first',
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    blockers: 'first'
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  },
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  'contact.async.block': 'first',
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  'contact.async.unblock': 'first',
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  'intl.sync.i18n': 'first',
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  'intl.sync.i18n_n': 'first',
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  'profile.obs.hops': 'first',
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  'sheet.profiles': 'first',
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  'contact.html.followToggle': 'first'
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})
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exports.gives = nest('profile.html.preview')
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exports.create = function (api) {
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  const i18n = api.intl.sync.i18n
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  const plural = api.intl.sync.i18n_n
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  return nest('profile.html.preview', function (id) {
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    var name = api.about.obs.name(id)
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    var yourId = api.keys.sync.id()
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    var yourFollows = api.contact.obs.following(yourId)
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    var yourFollowers = api.contact.obs.followers(yourId)
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    var rawFollowers = api.contact.obs.followers(id)
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    var rawFollowing = api.contact.obs.following(id)
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    var hops = api.profile.obs.hops(yourId, id)
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    var blockers = api.contact.obs.blockers(id)
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    var youBlock = computed(blockers, function (blockers) {
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      return blockers.includes(yourId)
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    })
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    var yourBlockingFriends = computed([yourFollowers, yourFollows, blockers], inAllSets)
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    var mutualFriends = computed([yourFollowers, yourFollows, rawFollowers, rawFollowing], inAllSets)
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    return h('ProfilePreview', [
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      h('header', [
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        h('div.image', api.about.html.image(id)),
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        h('div.main', [
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          h('div.title', [
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            h('h1', [
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              h('a', {href: id, 'ev-click': () => api.app.navigate(id)}, [name])
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            ]),
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            h('div.meta', [
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              api.contact.html.followToggle(id, {block: false})
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            ])
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          ]),
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          h('section -publicKey', [
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            h('pre', {title: i18n('Public key for this profile')}, id)
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          ])
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        ])
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      ]),
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      computed([hops, yourBlockingFriends, youBlock], (value, yourBlockingFriends, youBlock) => {
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        if (value) {
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          if ((value[0] > 1 || youBlock) && yourBlockingFriends.length > 0) {
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            return h('section -blockWarning', [
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              h('a', {
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                href: '#',
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                'ev-click': send(displayBlockingFriends, yourBlockingFriends)
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              }, [
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                '⚠️ ', plural('This person is blocked by %s of your friends.', yourBlockingFriends.length)
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              ])
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            ])
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          } else if (value[0] > 2 || value[1] === undefined) {
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            return h('section -distanceWarning', [
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              '⚠️ ', i18n(`You don't follow anyone who follows this person`)
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            ])
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          } else if (value[1] > 2 || value[1] === undefined) {
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            return h('section -distanceWarning', [
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              '⚠️ ', i18n('This person does not follow anyone that follows you')
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            ])
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          } else if (value[0] === 2) {
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            return h('section -mutualFriends', [
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              h('a', {
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                href: '#',
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                'ev-click': send(displayMutualFriends, mutualFriends)
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              }, [
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                computed(mutualFriends, (items) => {
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                  return plural('You share %s mutual friends with this person.', items.length)
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                })
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              ])
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            ])
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          } else if (value[0] === 0) {
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            return h('section -you', [
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              i18n('This is you.')
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            ])
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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 displayMutualFriends (profiles) {
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    api.sheet.profiles(profiles, i18n('Mutual Friends'))
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  }
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  function displayBlockingFriends (profiles) {
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    api.sheet.profiles(profiles, i18n('Blocked by'))
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  }
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}
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function inAllSets (first, ...rest) {
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  return first.filter(value => rest.every((collection) => collection.includes(value)))
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}
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