git ssb

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var ssbRef = require('ssb-ref')
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var mlib = require('ssb-msgs')
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exports.new = function (project, title, text) {
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  if (!ssbRef.isLink(project))
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    throw new Error('invalid project id')
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  var msg = { type: 'issue', project: project }
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  if (text == null) {
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    text = title
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    title = null
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  }
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  if (title) {
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    if (typeof title === 'string')
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      msg.title = title
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    else
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      throw new Error('invalid issue title')
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  }
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  if (text) {
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    if (typeof text === 'string')
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      msg.text = text
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    else
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      throw new Error('invalid issue text')
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  }
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  return msg
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}
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exports.newLabel = function (project, name, issues) {
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  if (!ssbRef.isLink(project))
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    throw new Error('invalid project id')
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  var msg = { type: 'issue-label', project: project }
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  if (name) {
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    if (typeof name === 'string')
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      msg.name = name
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    else
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      throw new Error('invalid issue label name')
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  }
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  if (issues) {
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    if (Array.isArray(issues) && issues.every(ssbRef.isMsg))
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      msg.issues = issues
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    else
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      throw new Error('invalid issues list')
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  }
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  return msg
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}
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exports.edit = function (id, opts) {
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  if (!ssbRef.isMsg(id))
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    throw new Error('invalid issue id')
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  var msg = {
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    type: 'issue-edit',
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    issues: [{
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      link: id
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    }]
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  }
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  var labels = {}
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  if (opts.open != null)
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    msg.issues[0].open = opts.open
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  if (opts.title != null)
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    msg.issues[0].title = opts.title
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  if (opts.addLabels != null) {
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    if (Array.isArray(opts.addLabels) && opts.addLabels.every(ssbRef.isMsg)) {
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      msg.issues[0].labels = labels
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      labels.add = opts.addLabels
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    } else {
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      throw new Error('invalid addLabels')
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    }
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  }
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  if (opts.removeLabels != null) {
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    if (Array.isArray(opts.removeLabels)
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     && opts.removeLabels.every(ssbRef.isMsg)) {
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      msg.issues[0].labels = labels
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      labels.remove = opts.removeLabels
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    } else {
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      throw new Error('invalid removeLabels')
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    }
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  }
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  return msg
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}
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exports.close = function (id) {
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  return exports.edit(id, {open: false})
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}
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exports.reopen = function (id) {
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  return exports.edit(id, {open: true})
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}
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function editMsg(msg, id, open) {
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  if (!ssbRef.isMsg(id))
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    throw new Error('invalid issue id')
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  ;(msg.issues || (msg.issues = [])).push({
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    link: id,
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    open: open
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  })
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  return msg
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}
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exports.reopens = function (msg, id) {
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  return editMsg(msg, id, true)
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}
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exports.closes = function (msg, id) {
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  return editMsg(msg, id, false)
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}
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