git ssb

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const nest = require('depnest')
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const { h, map, computed, when } = require('mutant')
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exports.gives = nest('contact.html.relationships')
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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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  'contact.async.follow': 'first',
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  'contact.async.unfollow': 'first',
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  'contact.async.block': 'first',
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  'contact.async.unblock': 'first',
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  'contact.obs.followers': 'first',
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  'contact.obs.following': 'first',
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  'contact.obs.blockers': 'first',
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  'keys.sync.id': 'first'
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})
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exports.create = function (api) {
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  return nest({
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    'contact.html.relationships': relationships
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  })
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  function relationships (id) {
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    var rawFollowing = api.contact.obs.following(id)
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    var rawFollowers = api.contact.obs.followers(id)
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    var friends = computed([rawFollowing, rawFollowers], (following, followers) => {
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      return [...following].filter(follow => followers.includes(follow))
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    })
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    var following = computed([rawFollowing, friends], (following, friends) => {
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      return [...following].filter(follow => !friends.includes(follow))
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    })
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    var followers = computed([rawFollowers, friends], (followers, friends) => {
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      return [...followers].filter(follower => !friends.includes(follower))
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    })
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    var myId = api.keys.sync.id()
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    var ImFollowing = api.contact.obs.following(myId)
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    var IFollowThem = computed([ImFollowing], ImFollowing => ImFollowing.includes(id))
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    var theyFollowMe = computed([rawFollowing], following => following.includes(myId))
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    var relationshipStatus = computed([IFollowThem, theyFollowMe], (IFollowThem, theyFollowMe) => {
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      return IFollowThem && theyFollowMe ? '- you are friends'
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        : IFollowThem ? '- you follow them'
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        : theyFollowMe ? '- they follow you'
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        : ''
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    })
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    function imageLink (id) {
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      return h('a',
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        { href: id, title: computed(api.about.obs.name(id), name => '@' + name) },
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        api.about.html.image(id)
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      )
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    }
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    const { unfollow, follow, block, unblock } = api.contact.async
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    const blockers = api.contact.obs.blockers(id)
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    const ImBlockingThem = computed(blockers, blockers => blockers.includes(myId))
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    return h('Relationships', [
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      h('header', 'Relationships'),
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      when(id !== myId,
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        h('div.your-status', [
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          h('header', 'Your status'),
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          h('section -friendship', [
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            when(ImFollowing.sync,
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              when(IFollowThem,
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                h('button', { 'ev-click': () => unfollow(id) }, 'Unfollow'),
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                h('button', { 'ev-click': () => follow(id) }, 'Follow')
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              ),
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              h('button', { disabled: 'disabled' }, 'Loading...')
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            ),
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            when(ImFollowing.sync, h('div.relationship-status', relationshipStatus)),
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          ]),
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          h('section -blocking', [
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            when(ImBlockingThem,
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              h('button', { 'ev-click': () => unblock(id, console.log) }, 'unblock'),
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              h('button', { 'ev-click': () => block(id, console.log) }, 'BLOCK')
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            ),
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            h('div.explainer', [
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              "Blocking tells everyone you don't want to communicate with a person.",
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              h('ul', [
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                h('li', 'You will no longer receive messages from this person'),
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                h('li', "This person won't get any new information about you (including this block)"),
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                h('li', "Your followers will see you have blocked this person - their apps need to know so that they don't pass your information on."),
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              ])
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            ])
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          ])
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        ])
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      ),
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      computed(blockers, blockers => {
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        if (blockers.length === 0) return ''
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        return h('div.blockers', [
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          h('header', 'Blocked by'),
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          h('section', blockers.map(imageLink))
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        ])
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      }),
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      h('div.friends', [
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        h('header', 'Friends'),
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        h('section', map(friends, imageLink))
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      ]),
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      h('div.follows', [
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        h('header', 'Follows'),
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        h('section', map(following, imageLink))
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      ]),
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      h('div.followers', [
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        h('header', 'Followers'),
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        h('section', map(followers, imageLink))
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      ])
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    ])
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  }
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}
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