git ssb

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var { h, computed, when, send } = require('mutant')
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var nest = require('depnest')
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exports.needs = nest({
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  'keys.sync.id': 'first',
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  'message.obs.likes': 'first',
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  'sbot.async.publish': 'first'
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})
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exports.gives = nest('message.html.action')
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exports.create = (api) => {
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  return nest('message.html.action', function (msg) {
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    var id = api.keys.sync.id()
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    var liked = computed([api.message.obs.likes(msg.key), id], doesLike)
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    return when(liked,
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      h('a.unlike', {
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        href: '#',
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        'ev-click': send(unlike, msg)
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      }, 'Unlike'),
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      h('a.like', {
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        href: '#',
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        'ev-click': send(like, msg)
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      }, 'Like')
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    )
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  })
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  function like (msg) {
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    publishLike(msg, true)
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  }
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  function unlike (msg) {
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    publishLike(msg, false)
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  }
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  function publishLike (msg, status = true) {
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    var like = status ? {
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      type: 'vote',
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      channel: msg.value.content.channel,
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      vote: { link: msg.key, value: 1, expression: 'Like' }
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    } : {
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      type: 'vote',
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      channel: msg.value.content.channel,
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      vote: { link: msg.key, value: 0, expression: 'Unlike' }
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    }
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    if (msg.value.content.recps) {
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      like.recps = msg.value.content.recps.map(function (e) {
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        return e && typeof e !== 'string' ? e.link : e
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      })
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      like.private = true
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    }
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    api.sbot.async.publish(like)
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  }
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}
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function doesLike (likes, userId) {
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  return likes.includes(userId)
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}
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