git ssb

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var Value = require('mutant/value')
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var ref = require('ssb-ref')
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var nest = require('depnest')
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exports.needs = nest('sbot.async.get', 'first')
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exports.gives = nest('message.obs.get')
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exports.create = function (api) {
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  return nest('message.obs.get', function (key, hintMessage = null) {
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    if (!ref.isMsg(key)) throw new Error('a msg id must be specified')
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    var result = Value()
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    api.sbot.async.get(key, (err, value) => {
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      if (err) {
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        // TODO: handle resolving out-of-order message!
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        // guess the author
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        var possibleAuthor
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        if (hintMessage && hintMessage.value && hintMessage.content && hintMessage.value.content.reply && ref.isFeed(hintMessage.value.content.reply[key])) {
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          possibleAuthor = hintMessage.value.content.reply[key]
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        }
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        result.set({
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          key,
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          value: {
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            missing: true,
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            author: possibleAuthor
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          }
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        })
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      } else {
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        result.set({
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          key,
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          value
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        })
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      }
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    })
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    return result
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  })
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}
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