git ssb

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const nest = require('depnest')
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const h = require('mutant/h')
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const map = require('mutant/map')
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const when = require('mutant/when')
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const computed = require('mutant/computed')
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const send = require('mutant/send')
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const removeMd = require('remove-markdown')
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exports.needs = nest({
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  'about.obs.name': 'first',
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  'about.obs.description': '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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  'intl.sync.i18n': 'first',
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  'intl.sync.i18n_n': 'first',
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  'sheet.profiles': 'first',
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  'contact.html.followToggle': 'first',
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  'profile.obs.contact': '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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    const idLen = id.length
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    const name = api.about.obs.name(id)
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    const contact = api.profile.obs.contact(id)
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    const description = api.about.obs.description(id)
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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: '#', '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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          h(
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            'section -profile', [
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              computed(description, (description) => {
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                const txt = removeMd(description)
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                const summary = shortenDescription(txt, idLen)
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                return summary
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              })]
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          )
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        ])
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      ]),
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      when(contact.isYou, h('section -you', [
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        i18n('This is you.')
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      ])),
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      when(contact.notFollowing, [
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        when(contact.blockingFriendsCount,
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          h('section -blockWarning', [
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            h('a', {
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              href: '#',
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              'ev-click': send(displayBlockingFriends, contact.blockingFriends)
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            }, [
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              '⚠️ ', computed(['This person is blocked by %s of your friends.', contact.blockingFriendsCount], plural)
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            ])
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          ]),
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          when(contact.noOutgoing,
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            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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            when(contact.noIncoming,
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              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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              when(contact.mutualFriendsCount,
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                h('section -mutualFriends', [
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                  h('a', {
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                    href: '#',
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                    title: nameList(i18n('Mutual Friends'), contact.mutualFriends),
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                    'ev-click': send(displayMutualFriends, contact.mutualFriends)
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                  }, [
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                    '👥 ', computed(['You share %s mutual friends with this person.', contact.mutualFriendsCount], plural)
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                  ])
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                ]),
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                h('section -mutualFriends', [
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                  h('a', {
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                    href: '#',
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                    title: nameList(i18n('Followed by'), contact.incomingVia),
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                    'ev-click': send(displayFollowedBy, contact.incomingVia)
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                  }, [
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                    '👥 ', computed(['You follow %s people that follow this person.', contact.incomingViaCount], plural)
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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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      ])
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    ])
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  })
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  function shortenDescription (txt, len) {
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    if (txt == null) {
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      return ''
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    }
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    const line1 = txt.trim().split('\n', 1)[0]
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    if (line1.length <= len) {
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      return line1
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    }
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    const words = line1.split(' ')
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    let result = words.shift()
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    if (result.length > len) {
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      return result.splice(0, len - 1) + ' …'
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    }
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    for (let i = 0; i < len; i++) {
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      const currentWord = words.shift()
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      // + 1 for the joining space, and +2 for the final ellipsis
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      if (result.length + 1 + currentWord.length + 2 <= len) {
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        result += ` ${currentWord}`
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      } else {
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        break
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      }
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    }
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    return result + ' …'
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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 displayFollowedBy (profiles) {
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    api.sheet.profiles(profiles, i18n('Followed by'))
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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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  function nameList (prefix, ids) {
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    const items = map(ids, api.about.obs.name)
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    return computed([prefix, items], (prefix, names) => {
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      return (prefix ? (prefix + '\n') : '') + names.map((n) => `- ${n}`).join('\n')
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    })
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  }
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}
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