git ssb

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var combine = require('depject')
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var Modules = require('patchbay/modules')
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var SbotApi = require('./api')
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var extend = require('xtend')
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var h = require('./lib/h')
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var plugs = require('patchbay/plugs')
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var Value = require('@mmckegg/mutant/value')
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var when = require('@mmckegg/mutant/when')
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var computed = require('@mmckegg/mutant/computed')
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module.exports = function (ssbClient, config) {
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  var api = SbotApi(ssbClient, config)
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  var modules = combine(extend(Modules, {
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    'sbot-api.js': api,
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    'public.js': require('./views/public-feed.js'),
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    'blob-url.js': {
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      blob_url: function (link) {
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        var prefix = config.blobsPrefix != null ? config.blobsPrefix : `http://localhost:${config.blobsPort}`
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        if (typeof link.link === 'string') {
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          link = link.link
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        }
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        return `${prefix}/${encodeURIComponent(link)}`
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      }
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    }
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  }))
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  var screenView = plugs.first(modules.plugs.screen_view)
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  var forwardHistory = []
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  var backHistory = []
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  var views = {
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    '/public': screenView('/public')
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  }
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  var canGoForward = Value(false)
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  var canGoBack = Value(false)
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  var currentView = Value(['/public'])
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  var rootElement = computed(currentView, (data) => {
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    if (Array.isArray(data)) {
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      return views[data[0]]
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    }
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  })
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  window.onhashchange = function (ev) {
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    var path = window.location.hash.substring(1)
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    if (path) {
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      setView(path)
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    }
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  }
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  var mainElement = h('div.main', [
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    rootElement
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  ])
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  return h('MainWindow', {
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    classList: [ '-' + process.platform ]
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  }, [
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    h('div.top', [
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      h('span.history', [
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        h('a', {
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          'ev-click': goBack,
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          classList: [ when(canGoBack, '-active') ]
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        }, '<'),
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        h('a', {
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          'ev-click': goForward,
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          classList: [ when(canGoForward, '-active') ]
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        }, '>')
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      ]),
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      h('span.nav', [
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        h('a', {
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          href: '#/public',
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          classList: [
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            when(selected('/public'), '-selected')
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          ]
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        }, 'Feed'),
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        h('a', {
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          href: '#/private',
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          classList: [
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            when(selected('/private'), '-selected')
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          ]
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        }, 'Private')
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      ]),
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      h('span.appTitle', ['Patchwork']),
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      h('span.nav', [
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        h('a', {
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          href: `#${ssbClient.id}`,
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          classList: [
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            when(selected(`${ssbClient.id}`), '-selected')
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          ]
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        }, 'Profile')
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      ])
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    ]),
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    mainElement
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  ])
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  // scoped
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  function goBack () {
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    if (backHistory.length) {
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      canGoForward.set(true)
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      forwardHistory.push(currentView())
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      currentView.set(backHistory.pop())
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      canGoBack.set(backHistory.length > 0)
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    }
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  }
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  function goForward () {
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    if (forwardHistory.length) {
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      backHistory.push(currentView())
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      currentView.set(forwardHistory.pop())
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      canGoForward.set(forwardHistory.length > 0)
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      canGoBack.set(true)
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    }
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  }
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  function setView (view, ...args) {
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    var newView = [view, ...args]
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    views[view] = screenView(view, ...args)
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    if (!isSame(newView, currentView())) {
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      canGoForward.set(false)
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      canGoBack.set(true)
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      forwardHistory.length = 0
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      backHistory.push(currentView())
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    }
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    currentView.set(newView)
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    currentView().scrollTop = 0
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  }
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  function selected (view) {
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    return computed([currentView, view], (currentView, view) => {
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      return currentView && currentView[0] === view
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    })
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  }
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}
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function isSame (a, b) {
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  if (Array.isArray(a) && Array.isArray(b) && a.length === b.length) {
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    for (var i = 0; i < a.length; i++) {
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      if (a[i] !== b[i]) {
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        return false
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      }
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    }
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    return true
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  } else if (a === b) {
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    return true
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  }
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}
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