git ssb

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const nest = require('depnest')
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const { h } = require('mutant')
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const addSuggest = require('suggest-box')
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exports.gives = nest('app.html.searchBar')
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exports.needs = nest({
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  'app.sync.goTo': 'first',
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  'about.async.suggest': 'first',
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  'channel.async.suggest': 'first'
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  // 'app.async.suggest': 'reduce' // TODO add ability to add to this
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})
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exports.create = function (api) {
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  var _search
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  return nest('app.html.searchBar', function searchBar () {
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    if (_search) return _search
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    function goToLocation (location, ev) {
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      if (location[0] === '?') {
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        location = { page: 'search', query: location.substring(1) }
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      } else if (!['@', '#', '%', '&', '/'].includes(location[0])) {
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        location = { page: 'search', query: location }
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      }
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      api.app.sync.goTo(location)
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      if (!ev.ctrlKey) input.blur()
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    }
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    const input = h('input', {
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      type: 'search',
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      placeholder: '?search, @name, #channel',
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      'ev-keyup': ev => {
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        switch (ev.keyCode) {
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          case 13: // enter
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            goToLocation(input.value.trim(), ev)
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            return
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          case 27: // escape
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            ev.preventDefault()
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            input.blur()
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        }
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      }
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    })
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    input.addEventListener('suggestselect', ev => {
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      input.value = ev.detail.id  // HACK : this over-rides the markdown value
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      goToLocation(input.value.trim(), ev)
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    })
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    _search = h('SearchBar', input)
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    _search.input = input
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    _search.activate = (sigil, ev) => {
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      input.focus()
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      ev.preventDefault()
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      if (input.value[0] === sigil) {
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        input.selectionStart = 1
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        input.selectionEnd = input.value.length
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      } else {
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        input.value = sigil
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      }
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    }
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    addSuggest(input, (inputText, cb) => {
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      const char = inputText[0]
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      const word = inputText.slice(1)
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      if (char === '@') api.about.async.suggest(word, cb)
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      if (char === '#') api.channel.async.suggest(word, cb)
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      if (char === '/') cb(null, getPagesSuggestions(word))
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    }, {cls: 'PatchSuggest'})
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    // TODO extract
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    function getPagesSuggestions (word) {
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      const pages = [
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        'calendar', 'posts', 'public', 'private', 'inbox', 'profile', 'notifications', 'settings',
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        'gatherings', 'chess', 'books', 'imageSearch', 'polls', 'query'
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      ]
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      return pages
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        .filter(page => ~page.indexOf(word))
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        .sort((a, b) => a.indexOf(word) < b.indexOf(word) ? -1 : +1)
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        .map(page => {
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          return {
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            title: '/' + page,
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            id: '/' + page,
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            value: '/' + page
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          }
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        })
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    }
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    return _search
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  })
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}
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