git ssb

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const nest = require('depnest')
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const pull = require('pull-stream')
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const ref = require('ssb-ref')
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const { computed } = require('mutant')
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exports.needs = nest({
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  'about.obs.latestValue': 'first',
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  'about.obs.groupedValues': 'first',
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  'bookmark.obs.struct': 'first'
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})
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exports.gives = nest('bookmark.obs.bookmark')
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exports.create = function(api) {
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  return nest('bookmark.obs.bookmark', function(bookmarkId) {
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    if (!ref.isLink(bookmarkId)) throw new Error('an id must be specified')
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    const { latestValue, groupedValues } = api.about.obs
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    const bookmark = api.bookmark.obs.struct({
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      title: latestValue(bookmarkId, 'title'),
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      description: latestValue(bookmarkId, 'description'),
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      messageId: latestValue(bookmarkId, 'messageId'),
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      tags: computed([groupedValues(bookmarkId, 'tags')], Object.keys)
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    })
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    return bookmark
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  })
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}
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