Feature: Label APIs (#931)

app/controllers/api/v1/accounts/labels_controller.rb

@@ -1,10 +1,38 @@
 class Api::V1::Accounts::LabelsController < Api::BaseController
-  # list all labels in account
+  before_action :current_account
+  before_action :fetch_label, except: [:index, :create]
+  before_action :check_authorization
+
   def index
-    @labels = current_account.all_conversation_tags
+    @labels = policy_scope(current_account.labels)
   end
 
-  def most_used
-    @labels = ActsAsTaggableOn::Tag.most_used(params[:count] || 10)
+  def show; end
+
+  def create
+    @label = current_account.labels.create!(permitted_params)
+  end
+
+  def update
+    @label.update(permitted_params)
+  end
+
+  def destroy
+    @label.destroy
+    head :ok
+  end
+
+  private
+
+  def fetch_label
+    @label = current_account.labels.find(params[:id])
+  end
+
+  def check_authorization
+    authorize(Label)
+  end
+
+  def permitted_params
+    params.require(:label).permit(:title, :description, :color, :show_on_sidebar)
   end
 end