Class: LivePaper::WmTrigger

Inherits:
Trigger show all
Defined in:
lib/live_paper/wm_trigger.rb

Constant Summary collapse

WATERMARK_RESOLUTION = 
75
WATERMARK_STRENGTH = 
10
DEFAULT_IMAGE_RESOLUTION = 
72

Constants inherited from BaseObject

BaseObject::AUTH_URL, BaseObject::AUTH_VALIDATION_URL, BaseObject::LP_API_HOST

Instance Attribute Summary collapse

Attributes inherited from Trigger

#end_date, #start_date, #state

Attributes inherited from BaseObject

#date_created, #date_modified, #id, #link, #name

Instance Method Summary collapse

Methods inherited from Trigger

api_url, #default_end_date, #default_start_date, item_key, list_key, parse

Methods inherited from BaseObject

api_url, #assign_attributes, create, #delete, #errors, get, #initialize, item_key, list, list_key, parse, #rel, request_access_token, request_project_id, rest_request, #save, #update

Constructor Details

This class inherits a constructor from LivePaper::BaseObject

Instance Attribute Details

#wm_url ⇒ Object

Returns the value of attribute wm_url.



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# File 'lib/live_paper/wm_trigger.rb', line 6

def wm_url
  @wm_url
end

Instance Method Details

#download_watermark(image_url, options = {}) ⇒ Object 



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# File 'lib/live_paper/wm_trigger.rb', line 18

def download_watermark(image_url, options = {})
  wpi = options[:wpi] || WATERMARK_RESOLUTION
  strength = options[:strength] || WATERMARK_STRENGTH
  ppi = options[:ppi]
  if ppi.blank?
    image = MiniMagick::Image.open(image_url + "?access_token=" + $lpp_access_token)
    ppiArray = image.resolution("PixelsPerInch") #This returns the [xResolution, yResolution]
    ppi = ppiArray[0] if (ppiArray.present? && ppiArray.length > 0)
  end
  if ppi.blank?
    ppi = DEFAULT_IMAGE_RESOLUTION
  end
  
  url = "#{self.wm_url}?imageURL=#{CGI.escape(image_url)}&wpi=#{wpi}&ppi=#{ppi}&strength=#{strength}"
  begin
    response = WmTrigger.rest_request( url, :get, accept: "image/jpg" )
    response.body.empty? ? nil : response.body
  rescue Exception => e
    puts "Exception : #{e.to_s}\n"
  end
end

#parse(data) ⇒ Object 



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# File 'lib/live_paper/wm_trigger.rb', line 11

def parse(data)
  data = JSON.parse(data, symbolize_names: true)[:trigger]
  assign_attributes data
  self.wm_url=data[:link].select { |item| item[:rel] == "download" }.first[:href]
  self
end