module UrlShorty

@param api_key [String] Google URL Shortener API KEY @return [nil] This method will set-up the Google URL shortener API key for your project. If you don't have any API key, Click here to create one for your project. Example:

UrlShorty.api_key("<API KEY>")

# File lib/url_shorty.rb, line 20
def self.api_key (api_key)
        @api_key         = api_key
end

@param shorten_url [String] A url value that has to be expanded @return [String] A string representing the expanded URL This method will expand the shortened URL into a long URL Example:

UrlShorty.expand_url("https://goo.gl/XojnVs")
 => "https://github.com/Balaji-Ramasubramanian/UrlShorty"

# File lib/url_shorty.rb, line 59
def self.expand_url(shorten_url)
        url             = BASE_URL + @api_key + SHORT_URL + shorten_url
    response        = ""
    response        = HTTParty.get(url)
    parsed          = JSON.parse(response.body)
    long_url            = parsed['longUrl']
    puts long_url
    return long_url 
end

@param shorten_url [String] A String represents Shortened URL @return parsed_json_obj [Object] A Object that contains the analytics data of the Shortened URL To get analytics data for Shortened url The basic information about the Shortened URL are,

- kind
- id
- longUrl
- status
- created

Example:

url_analytics_data = UrlShorty.get_analytics("https://goo.gl/XojnVs")
url_analytics_data.kind    
=> "urlshortener#url"
url_analytics_data.id              
=> "https://goo.gl/XojnVs"
url_analytics_data.longUrl         
=> "https://github.com/Balaji-Ramasubramanian/UrlShorty"
url_analytics_data.created         
=> "2017-11-26T07:26:32.556+00:00"

The Available Scopes are,

- allTime
- month
- week
- twoHours

The Available information

- shortUrlClicks
- longUrlClicks
- referers
- countries
- browsers
- platforms

Examples:

url_analytics_data = UrlShorty.get_analytics("https://goo.gl/SeRtHU")
url_analytics_data.analytics.allTime.shortUrlClicks                        
=> "88"
url_analytics_data.analytics.allTime.referers[0].count             
=>"73"
url_analytics_data.analytics.month.browsers[1].id                  
=>"Chrome"
url_analytics_data.analytics.twoHours.platforms[2].id              
=>"Macintosh"

# File lib/url_shorty/analytics.rb, line 53
def self.get_analytics (shorten_url)
    url             = BASE_URL + @api_key + SHORT_URL + shorten_url + PROJECTION
    response        = ""
    response        = HTTParty.get(url)
    parsed_json_obj         = JSON.parse(response.body, object_class: OpenStruct)
    return parsed_json_obj
end

@param long_url [String] A url value that has to be shortened @return [String] A string representing the shortened URL This method will shorten the provided long URL into a short URL using the Google URL shortener service. Example:

UrlShorty.shorten_url(""https://github.com/Balaji-Ramasubramanian/UrlShorty")
 => "https://goo.gl/XojnVs"

# File lib/url_shorty.rb, line 32
def self.shorten_url(long_url)
   uri              = URI.parse( BASE_URL + @api_key )
   header           = {'Content-Type': 'application/json'}      
   parameter        = {"longUrl": "#{long_url}"}  
   http             = Net::HTTP.new(uri.host, uri.port)
   http.use_ssl     = true
   http.verify_mode = OpenSSL::SSL::VERIFY_NONE
   request          = Net::HTTP::Post.new(uri.request_uri, header)
   request.body     = parameter.to_json
   response         = http.request(request)
   data             = JSON.parse(response.body) 
   if data["id"] != nil then
    return data["id"]
   else
    puts data
    return data["error"]["errors"][0]["reason"]
   end
end