Merge pull request #8 from cakejelly/delete-messages

Adds support for deleting messages

Author: cakejelly

README.md

@@ -180,6 +180,14 @@ messages = conv.messages.find("message_id")
 # => #<Layer::Resources::Message:0x007fdb18b44bf0 @attributes={...}>
 ```
 
+#### Deleting A Message
+
+```ruby
+conv = platform.conversations.find("conversation_id")
+conv.messages.find("message_id").destroy
+# => nil
+```
+
 #### Sending Announcements ####
 
 ```ruby

lib/layer/platform/client.rb

@@ -13,26 +13,6 @@ def client
         @http_client ||= Layer::HttpClient.new(@app_id, @api_token)
       end
 
-      def get(url, *args)
-        client.get(url, *args)
-      end
-
-      def post(url, *args)
-        client.post(url, *args)
-      end
-
-      def put(url, *args)
-        client.put(url, *args)
-      end
-
-      def patch(url, *args)
-        client.patch(url, *args)
-      end
-
-      def delete(url)
-        client.delete(url)
-      end
-
       def strip_layer_prefix(string)
         string.split("/").last if string
       end

lib/layer/resources/message.rb

@@ -1,6 +1,17 @@
 module Layer
   module Resources
     class Message < Layer::Resource
+      def destroy
+        client.delete(delete_url)
+      end
+
+      private
+
+      def delete_url
+        conversation_url = conversation["id"].split("layer:///").last
+
+        "#{conversation_url}/messages/#{uuid}"
+      end
     end
   end
 end

spec/cassettes/message_delete.yml

@@ -100,4 +100,36 @@
       end
     end
   end
+
+  describe "#destroy" do
+    it "should delete message if message exists" do
+      VCR.use_cassette("message_delete") do
+        conv = client.conversations.create(conversation_params)
+        message = conv.messages.create(message_params)
+
+        message.destroy
+
+        expect {
+          conv.messages.find(message.uuid)
+        }.to raise_error(Layer::Errors::NotFound)
+      end
+    end
+  end
+
+  describe "#delete_url" do
+    it "should return correct URL needed for deletion" do
+      attributes = {
+        "id"=>"layer:///messages/779fe2ec-8c1a-4b7c-993c-22df0465af1c",
+        "conversation" => {
+          "id" => "layer:///conversations/b127ccbe-5f95-4d6a-9c01-c1e98e147f4f"
+        }
+      }
+
+      message = described_class.new(attributes, nil)
+      delete_url = message.send(:delete_url)
+      expected_url = "conversations/b127ccbe-5f95-4d6a-9c01-c1e98e147f4f/messages/779fe2ec-8c1a-4b7c-993c-22df0465af1c"
+
+      expect(delete_url).to eq(expected_url)
+    end
+  end
 end