git ssb

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const h = require('mutant/h')
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const nest = require('depnest')
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const when = require('mutant/when')
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const emoji = require('node-emoji')
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const displaySheet = require('../../../sheet/display')
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exports.needs = nest({
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  'message.html.render': 'first',
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  'intl.sync.i18n': 'first',
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  'intl.sync.i18n_n': 'first'
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})
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exports.gives = nest('message.sheet.preview')
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exports.create = function (api) {
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  const i18n = api.intl.sync.i18n
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  const plural = api.intl.sync.i18n_n
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  return nest('message.sheet.preview', function (msg, cb) {
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    displaySheet(function (close) {
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      const isPrivate = msg.value.private
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      const isRoot = !msg.value.content.root
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      const exists = !!msg.key
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      const recps = (msg.value.content.recps || []).filter(id => id !== msg.value.author)
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      // handle too many private recipients
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      if (isPrivate && recps.length >= 7) {
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        return {
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          content: [
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            h('h2', [i18n('Too many recipients')]),
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            h('div.info', [
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              h('p', [
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                i18n('Private messages can only be addressed to up to 7 people. '),
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                plural('Your message has %s recipients, including yourself', recps.length)
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              ]),
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              h('p', [i18n('Please go back and remove some of the recipients.')])
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            ])
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          ],
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          classList: ['-private'],
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          footer: [h('button -cancel', { 'ev-click': cancel }, i18n('Close'))]
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        }
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      }
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      const messageElement = api.message.html.render(msg)
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      // allow inspecting of raw message that is about to be sent
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      messageElement.msg = msg
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      const cancelButton = h('button -cancel', { 'ev-click': cancel }, i18n('Cancel'))
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      return {
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        content: [
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          messageElement
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        ],
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        classList: [
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          when(isPrivate, '-private', '-public')
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        ],
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        footer: [
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          when(isPrivate,
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            h('span.Emoji', emoji.get('closed_lock_with_key')),
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            h('span.Emoji', emoji.get('globe_with_meridians'))
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          ),
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          when(isPrivate,
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            h('div.info -private', [
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              recps.length
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                ? when(!exists && isRoot,
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                    plural('Only visible to you and %s people that have been mentioned', recps.length),
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                    plural('Only visible to you and %s other thread participants', recps.length)
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                  )
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                : i18n('This message will only be visible to you')
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            ]),
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            h('div.info -public', [
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              when(msg.publiclyEditable,
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                i18n('This message will be public and can be edited by anyone'),
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                i18n('This message will be public and cannot be edited or deleted')
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              )
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            ])
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          ),
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          h('button -save', { 'ev-click': publish }, i18n('Confirm')),
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          cancelButton
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        ],
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        onMount: () => {
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          cancelButton.focus()
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        },
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        attributes: {
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          'ev-keydown': ev => {
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            if (ev.key === 'Enter' && (ev.ctrlKey || ev.metaKey)) {
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              publish()
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              ev.preventDefault()
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            } else if (ev.key === 'Escape') {
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              cancel()
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              ev.preventDefault()
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            }
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          }
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        }
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      }
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      function publish () {
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        close()
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        cb(null, true)
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      }
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      function cancel () {
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        close()
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        cb(null, false)
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      }
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    })
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    return true
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  })
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}
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