git ssb

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const nest = require('depnest')
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const { h, Array: MutantArray, computed, when, map } = require('mutant')
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exports.gives = nest('contact.html.follow')
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exports.needs = nest({
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  'contact.async.follow': 'first',
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  'contact.async.unfollow': 'first',
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  'contact.obs.followers': 'first',
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  'keys.sync.id': 'first',
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  'translations.sync.strings': 'first'
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})
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exports.create = (api) => {
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  return nest('contact.html.follow', follow)
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  function follow (feed) {
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    const strings = api.translations.sync.strings()
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    const myId = api.keys.sync.id()
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    if (feed === myId) return
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    const { followers } = api.contact.obs
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    const theirFollowers = followers(feed)
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    const youFollowThem = computed(theirFollowers, followers => followers.includes(myId))
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    const className = when(youFollowThem, '-following')
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    const follow = (feed) => ev => {
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      ev.stopPropagation()
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      api.contact.async.follow(feed)
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    }
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    const unfollow = (feed) => ev => {
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      ev.stopPropagation()
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      api.contact.async.unfollow(feed)
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    }
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    return h('Follow', { className },
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      when(theirFollowers.sync,
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        when(youFollowThem,
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          h('Button', { 'ev-click': unfollow(feed) }, strings.userShow.action.unfollow),
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          h('Button -strong', { 'ev-click': follow(feed) }, strings.userShow.action.follow)
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        ),
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        h('Button', { disabled: 'disabled' }, strings.loading)
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      )
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    )
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  }
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}
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