git ssb

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const debug = require('debug')('ssb-news')
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const pull = require('pull-stream')
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const isUrl = require('is-url')
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module.exports = class SSBNews {
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  constructor (sbot) {
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    this.sbot = sbot
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  }
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  _isLink (link) {
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    return isUrl(link)
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  }
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  recent (cb) {
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    pull(
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      this.sbot.messagesByType({ type: 'news', reverse: true }),
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      pull.filter((msg) => this._isLink(msg.value.content.link)),
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      pull.collect(cb)
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    )
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  }
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  story (id, cb) {
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    debug('story', id)
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    this.sbot.get(id, cb)
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  }
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  publish (story, cb) {
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    if (typeof story.title !== 'string') {
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      return cb(new Error('missing story title'))
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    }
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    if (typeof story.link !== 'string') {
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      return cb(new Error('missing story link'))
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    }
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    if (isUrl(story.link) === false) {
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      throw new Error('invalid link')
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    }
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    this.sbot.publish({
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      type: 'news',
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      title: story.title,
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      link: story.link
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    }, cb)
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  }
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}
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