Moved url check to configuration

lib/filestack_rails/configuration.rb

@@ -1,11 +1,11 @@
 require 'net/http'
 
 module FilestackRails
+  OUTDATED_VERSION = '0.11.5'
+
   class Configuration
     attr_accessor :api_key, :client_name, :secret_key, :security, :expiry, :app_secret, :cname, :version
 
-    OUTDATED_VERSION = '0.11.5'
-
     def api_key
       @api_key or raise "Set config.filestack_rails.api_key"
     end
@@ -15,7 +15,10 @@ def client_name
     end
 
     def version
-      @version or '3.x.x'
+      @version ||= '3.x.x'
+
+      raise 'Incorrect config.filestack_rails.version' unless version_exists?
+      @version
     end
 
     def expiry
@@ -32,5 +35,36 @@ def security=(security_options = {})
     def app_secret
       @app_secret or nil
     end
+
+    def url
+      @url
+    end
+
+    def version_exists?
+      @url = filestack_js_url
+
+      if @version == OUTDATED_VERSION
+        @url = outdated_filestack_js_url
+      end
+
+      url_exists?(@url)
+    end
+
+    def url_exists?(url)
+      uri = URI(url)
+      request = Net::HTTP.new(uri.host)
+      response = request.request_head(uri.path)
+      response.code.to_i == 200
+    rescue
+      raise 'Invalid URI'
+    end
+
+    def outdated_filestack_js_url
+      'https://static.filestackapi.com/v3/filestack.js'
+    end
+
+    def filestack_js_url
+      "https://static.filestackapi.com/filestack-js/#{@version}/filestack.min.js"
+    end
   end
 end

lib/filestack_rails/filestack_js.rb

@@ -1,23 +1,8 @@
-require 'net/http'
-
 class Picker
   attr_reader :url
 
   def initialize
-    raise 'Incorrect config.filestack_rails.version' unless url_exists?(filestack_js_url)
-    @url = filestack_js_url
-  end
-
-  def version
-    ::Rails.application.config.filestack_rails.version
-  end
-
-  def security(signature, policy)
-    { security: { signature: signature, policy: policy } }.to_json
-  end
-
-  def filestack_js_url
-    "https://static.filestackapi.com/filestack-js/#{version}/filestack.min.js"
+    @url = ::Rails.application.config.filestack_rails.url
   end
 
   def picker(client_name, api_key, options, callback, other_callbacks = nil)
@@ -30,21 +15,12 @@ def picker(client_name, api_key, options, callback, other_callbacks = nil)
     HTML
   end
 
-   def url_exists?(url)
-     uri = URI(url)
-     request = Net::HTTP.new(uri.host)
-     response = request.request_head(uri.path)
-     response.code.to_i == 200
-   rescue
-     false
-   end
+  def security(signature, policy)
+    { security: { signature: signature, policy: policy } }.to_json
+  end
 end
 
 class OutdatedPicker < Picker
-  def filestack_js_url
-    'https://static.filestackapi.com/v3/filestack.js'
-  end
-
   def picker(client_name, api_key, options, callback, other_callbacks = nil)
     <<~HTML
       (function(){
@@ -60,10 +36,8 @@ def security(signature, policy)
 
 module FilestackRails
   module FilestackJs
-    OUTDATED_VERSION = '0.11.5'
-
     def get_filestack_js
-      if ::Rails.application.config.filestack_rails.version == OUTDATED_VERSION
+      if ::Rails.application.config.filestack_rails.version == FilestackRails::OUTDATED_VERSION
         OutdatedPicker.new
       else
         Picker.new

spec/lib/configuration_spec.rb

@@ -60,6 +60,11 @@
       expect(configuration.version).to eq('3.x.x')
     end
 
+    it 'has incorrect version' do
+      configuration.version = "1.4.4.4"
+      expect { configuration.version }.to raise_error(RuntimeError, 'Incorrect config.filestack_rails.version')
+    end
+
     it 'has version' do
       version = '3.x.x'
       configuration.version = version
@@ -94,4 +99,12 @@
       expect(configuration.app_secret).to eq(nil)
     end
   end
+
+  describe '#url_exists?' do
+    it 'considers invalid url' do
+      expect do
+        configuration.url_exists?('invalid_url')
+      end.to raise_error(RuntimeError, 'Invalid URI')
+    end
+  end
 end

spec/lib/filestack_js_spec.rb

@@ -58,10 +58,6 @@
         security = get_filestack_js.security(signature, policy)
         expect(security).to eq({ security: { signature: signature, policy: policy } }.to_json)
       end
-
-      it 'considers url incorrect' do
-        expect(get_filestack_js.url_exists?('incorrect_url_format')).to eq(false)
-      end
     end
 
     context 'when version does not exist' do