ferment/index.js

Peer-to-peer audio publishing and streaming application. Like SoundCloud but decentralized. A mashup of ssb, webtorrent and electron.

process.on('uncaughtException', function (err) {
  console.log(err)
  process.exit()
})

var electron = require('electron')
var setupIpc = require('./lib/background-ipc')
var openWindow = require('./lib/window')
var createSbot = require('./lib/ssb-server')
var serveBlobs = require('./lib/serve-blobs')
var makeSingleInstance = require('./lib/make-single-instance')
var pull = require('pull-stream')
var pullFile = require('pull-file')
var Path = require('path')
var fs = require('fs')
var defaultMenu = require('electron-default-menu')
var Menu = electron.Menu
var dataUriToBuffer = require('data-uri-to-buffer')
var globalShortcut = electron.globalShortcut

var windows = {
  dialogs: new Set()
}

var context = null
// TODO: rewrite this to just use ssbConfig
if (process.argv.includes('--test-peer')) {
  // helpful for testing peers on a single machine
  context = setupContext('ferment-peer', {
    port: 43762
  })
} else if (process.argv.includes('--create-invite')) {
  context = setupContext('ferment', { allowPrivate: true })
  context.sbot.invite.create(1, (err, code) => {
    if (err) throw err
    console.log(`invite code:\n\n${code}\n`)
  })
} else if (process.argv.includes('--use-global-ssb') || process.argv.includes('-g')) {
  context = setupContext('ssb', {
    port: 8008,
    blobsPort: 7777,
    server: false
  })
} else {
  makeSingleInstance(windows, openMainWindow)
  context = setupContext('ferment')
}

electron.ipcMain.on('add-blob', (ev, id, path, cb) => {
  pull(
    path.startsWith('data:') ? pull.values([dataUriToBuffer(path)]) : pullFile(path),
    context.sbot.blobs.add((err, hash) => {
      if (err) return ev.sender.send('response', id, err)
      ev.sender.send('response', id, null, hash)
    })
  )
})

electron.app.on('ready', function () {
  Menu.setApplicationMenu(Menu.buildFromTemplate(defaultMenu(electron.app, electron.shell)))
  setupIpc(windows)
  startBackgroundProcess()
  openMainWindow()
})

electron.app.on('activate', function (e) {
  openMainWindow()
})

electron.ipcMain.on('open-add-window', (ev, data) => openAddWindow(data))
electron.ipcMain.on('open-edit-profile-window', (ev, data) => openEditProfileWindow(data))
electron.ipcMain.on('open-join-pub-window', openJoinPubWindow)
electron.ipcMain.on('open-background-devtools', openBackgroundDevTools)

function openMainWindow () {
  if (!windows.main) {
    windows.main = openWindow(context, Path.join(__dirname, 'main-window.js'), {
      minWidth: 800,
      width: 1024,
      height: 768,
      titleBarStyle: 'hidden-inset',
      title: 'Ferment',
      show: true,
      backgroundColor: '#444',
      webPreferences: {
        experimentalFeatures: true
      },
      icon: './ferment-logo.png'
    })
    windows.main.setSheetOffset(40)

    windows.main.once('show', function () {
      globalShortcut.register('MediaPlayPause', function () {
        if (windows.main) windows.main.webContents.send('playPause')
      })

      globalShortcut.register('MediaNextTrack', function () {
        if (windows.main) windows.main.webContents.send('nextTrack')
      })

      globalShortcut.register('MediaPreviousTrack', function () {
        if (windows.main) windows.main.webContents.send('previousTrack')
      })
    })

    windows.main.on('closed', function () {
      windows.main = null
      globalShortcut.unregisterAll()
    })
  }
}

function openAddWindow (opts) {
  var window = openWindow(context, Path.join(__dirname, 'add-audio-window.js'), {
    parent: windows.main,
    show: true,
    width: 850,
    height: 350,
    useContentSize: true,
    maximizable: false,
    fullscreenable: false,
    skipTaskbar: true,
    resizable: false,
    title: opts && opts.id ? 'Edit Audio File' : 'Add Audio File',
    backgroundColor: '#444',
    data: opts
  })

  windows.dialogs.add(window)

  window.on('closed', function () {
    windows.dialogs.delete(window)
  })
}

function openEditProfileWindow (opts) {
  var window = openWindow(context, Path.join(__dirname, 'edit-profile-window.js'), {
    parent: windows.main,
    modal: true,
    show: true,
    width: 800,
    height: 300,
    useContentSize: true,
    maximizable: false,
    fullscreenable: false,
    skipTaskbar: true,
    resizable: false,
    title: 'Edit Profile',
    backgroundColor: '#444',
    data: opts
  })

  windows.dialogs.add(window)

  window.on('closed', function () {
    windows.dialogs.delete(window)
  })
}

function openJoinPubWindow () {
  var window = openWindow(context, Path.join(__dirname, 'join-pub-window.js'), {
    parent: windows.main,
    modal: true,
    show: true,
    width: 650,
    height: 280,
    useContentSize: true,
    maximizable: false,
    fullscreenable: false,
    skipTaskbar: true,
    resizable: false,
    title: 'Join Public Server',
    backgroundColor: '#444',
    webPreferences: {
      openerId: windows.main.webContents.id
    }
  })

  windows.dialogs.add(window)

  window.on('closed', function () {
    windows.dialogs.delete(window)
  })
}

function startBackgroundProcess () {
  windows.background = openWindow(context, Path.join(__dirname, 'background-window.js'), {
    center: true,
    fullscreen: false,
    fullscreenable: false,
    height: 150,
    maximizable: false,
    minimizable: false,
    resizable: false,
    show: false,
    skipTaskbar: true,
    title: 'ferment-background-window',
    useContentSize: true,
    width: 150
  })
}

function openBackgroundDevTools () {
  if (windows.background) {
    windows.background.webContents.openDevTools({detach: true})
  }
}

function setupContext (appName, opts) {
  var ssbConfig = require('./lib/ssb-config')(appName, opts)
  if (opts && opts.server === false) {
    return {
      config: ssbConfig
    }
  } else {
    var context = {
      sbot: createSbot(ssbConfig),
      config: ssbConfig
    }
    ssbConfig.manifest = context.sbot.getManifest()
    serveBlobs(context)
    fs.writeFileSync(Path.join(ssbConfig.path, 'manifest.json'), JSON.stringify(ssbConfig.manifest))
    console.log(`Address: ${context.sbot.getAddress()}`)
    return context
  }
}