getRootFolderID callback request drive about get err req res if err ca

getRootFolderID = (callback) ->
  request = drive.about.get((err, req, res) ->
    if err
      callback null
    else
      callback res.body.rootFolderId
    return
  )
  return
createFolder = (parentId, title, callback) ->
  drive.files.insert
    resource:
      parents: [id: parentId]
      title: title
      mimeType: "application/vnd.google-apps.folder"
  , (e, rq, rs) ->
    return callback(null)  if e or not rs.body or not rs.body.id
    console.log "folder \"" + title + "\" created with id:", rs.body.id
    callback rs.body

  return
getOrCreateFolder = (parentId, title, callback) ->
  drive.files.list
    q: "title=\"" + title + "\" and mimeType=\"application/vnd.google-apps.folder\" and \"" + parentId + "\" in parents"
  , (e, rq, rs) ->
    for i of rs.body.items
      item = rs.body.items[i]
      continue  if item.labels.trashed
      return callback(item)
    console.log "folder \"" + title + "\" does not exist, creating new one"
    createFolder parentId, title, callback
    return

  return
uploadFileToFolder = (folder, file, callback) ->
  mimeType = mime.lookup(file.fullpath)
  console.log "Detected mime type:", mimeType
  request =
    resource:
      parents: [folder]
      title: file.filename
      mimeType: mimeType

    media:
      mimeType: mimeType
      body: fs.createReadStream(file.fullpath)

  console.log "performing files.insert request:", request
  drive.files.insert request, (e, rq, rs) ->
    callback e, rs.body
    return

  return
uploadToGoogleDrive = (file, callback) ->
  getRootFolderID (rootFolderId) ->
    console.log "got root folder id:", rootFolderId
    getOrCreateFolder rootFolderId, "Photos", (photosFolder) ->
      unless photosFolder
        console.error "failed to create /Photos"
        return callback(null)
      console.log "got /Photos folder id:", photosFolder.id
      getOrCreateFolder photosFolder.id, "Photostream", (photostreamFolder) ->
        unless photostreamFolder
          console.error "failed to create /Photos/Photostream"
          return callback(null)
        console.log "got /Photos/Photostream folder id:", photostreamFolder.id
        console.log "getting creation date for file", file.fullpath
        getPhotoDate file, (date) ->
          date = "Unsorted"  unless date
          console.log "got photo date:", date
          getOrCreateFolder photostreamFolder.id, date, (dateFolder) ->
            unless dateFolder
              console.error "failed to create /Photos/Photostream/" + date
              return callback(null)
            console.log "got photostream date folder with id:", dateFolder.id
            uploadFileToFolder dateFolder, file, callback
            return

          return

        return

      return

    return

  return
extractExifCreationDate = (file, callback) ->
  try
    new ExifImage(
      image: file.fullpath
    , ((error, exifData) ->
      if error
        console.log "Failed to extract photo date from exif: " + error.message
        callback null
      else if not exifData or not exifData.exif or not exifData.exif.CreateDate
        callback null
      else
        callback exifData.exif.CreateDate
      return
    ).bind(this))
  catch error
    console.log "Error:", error.message
    callback null
  return
getPhotoDate = (file, callback) ->
  extractExifCreationDate file, ((creationDate) ->
    unless creationDate
      callback creationDate
    else
      date = moment(creationDate, "YYYY:MM:DD HH:mm:ss")
      return callback(null)  unless date.isValid()
      callback date.format("YYYY MM MMMM")
    return
  ).bind(this)
  return
googleapis = require("googleapis")
mime = require("mime")
fs = require("fs")
moment = require("moment")
ExifImage = require("exif").ExifImage
CLIENT_ID = "..."
CLIENT_SECRET = "..."
REDIRECT_URL = "urn:ietf:wg:oauth:2.0:oob"
SCOPE = "https://www.googleapis.com/auth/drive"
AUTH_CODE = "..."
googleDrive = require("google-drive")
TOKENS =
  access_token: "..."
  token_type: "Bearer"
  refresh_token: "..."
  expiry_date: ""

auth = new googleapis.auth.OAuth2(CLIENT_ID, CLIENT_SECRET, REDIRECT_URL)
auth.setCredentials TOKENS
googleapis.options auth: auth
drive = googleapis.drive(version: "v2")
require("osx-photostream")().on "update", (file) ->
  console.log "New image: " + file.filename
  uploadToGoogleDrive file, (error, result) ->
    if error
      console.error "upload failed:", error
    else
      console.log "upload succeeded"
    return

  return