Module: Visioner

Defined in:
lib/visioner.rb,
lib/visioner/version.rb

Constant Summary collapse

VERSION = 
"0.2.0"

Class Method Summary collapse

Class Method Details

.get_country(latitude, longitude) ⇒ Object 



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# File 'lib/visioner.rb', line 10

def self.get_country(latitude, longitude)
  # Prepare request
  url = "https://maps.googleapis.com/maps/api/geocode/json?latlng=#{latitude},#{longitude}"
  url = URI(url)
  req = Net::HTTP::Get.new(url)
  res = Net::HTTP.new(url.host, url.port)
  res.use_ssl = true

  # Get country
  country = 'unknown'
  res.start do |http|
    resp = http.request(req)
    json = JSON.parse(resp.body)
    if json && json['status'] == 'OK' && json['results'][0]['address_components'] && json['results'][0]['address_components'].select {|address_component| address_component['types'][0] == 'country' }
      country = json['results'][0]['address_components'].select {|address_component| address_component['types'][0] == 'country' }
      country = country[0]['long_name']
      country = country.downcase.tr(" ", "-")
    end
  end

  return country
end

.rename_all(images, options) ⇒ Object 



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# File 'lib/visioner.rb', line 33

def self.rename_all(images, options)
  images.each do |image_name|

    # Check file extension
    if File.extname(image_name) != '.jpg'
      puts "Error: can only rename jpg files. Continuing..."
      next
    end


    # Convert image to Base 64
    begin
      b64_data = Base64.encode64(File.open(image_name, "rb").read)
    rescue
      puts "Error: can't read file. Exiting..."
    end

    # Prepare request
    api_key = ENV['GOOGLE_API_KEY']
    content_type = "Content-Type: application/json"
    url = "https://vision.googleapis.com/v1/images:annotate?key=#{api_key}"
    data = {
      "requests": [
        {
          "image": {
            "content": b64_data
          },
          "features": [
            {
              "type": "LABEL_DETECTION",
              "maxResults": 1
            }
          ]
        }
      ]
    }.to_json
    url = URI(url)
    req = Net::HTTP::Post.new(url, initheader = {'Content-Type' =>'application/json'})
    req.body = data
    res = Net::HTTP.new(url.host, url.port)
    res.use_ssl = true

    # Rename file
    name = ""
    res.start do |http|
      resp = http.request(req)
      json = JSON.parse(resp.body)
      if json && json["responses"] && json["responses"][0]["labelAnnotations"] && json["responses"][0]["labelAnnotations"][0]["description"]
        name = json['responses'][0]['labelAnnotations'][0]['description']
        name = name.tr(" ", "-")
      end
    end

    unless name.empty?
      counter = nil
      while File.exist?(File.dirname(image_name) + "/" + name + counter.to_s + File.extname(image_name)) do
        counter = 1 if counter == nil
        counter = counter.to_i + 1
      end

      exif = EXIFR::JPEG.new(image_name)

      date = ''
      if options[:date]
        date = File.mtime(image_name).strftime('%m-%d-%Y') # Fallback
        date = exif.date_time_original.strftime('%m-%d-%Y') + '_' if exif.date_time_original
      end

      country = ''
      if options[:country]
        country = 'unknown' # Fallback
        country = self.get_country(exif.gps.latitude, exif.gps.longitude) + '_' if exif.gps_latitude && exif.gps_longitude
      end

      puts "#{image_name} -> #{country + date + name + counter.to_s + File.extname(image_name)}"

      File.rename(image_name, File.dirname(image_name) + "/" + country + date + name + counter.to_s + File.extname(image_name))
    end

  end
end