Feature: API to get most used labels (#447)

* Add most-used labels API

* Filter conversation by labels

* Move match_all to any query

Co-authored-by: Pranav Raj S <pranavrajs@gmail.com>

app/controllers/api/v1/labels_controller.rb

@@ -2,4 +2,8 @@ class Api::V1::LabelsController < Api::BaseController
   def index # list all labels in account
     @labels = current_account.all_conversation_tags
   end
+
+  def most_used
+    @labels = ActsAsTaggableOn::Tag.most_used(params[:count] || 10)
+  end
 end

app/finders/conversation_finder.rb

@@ -31,6 +31,7 @@ class ConversationFinder
 
     find_all_conversations
     filter_by_status
+    filter_by_labels if params[:labels]
 
     mine_count, unassigned_count, all_count = set_count_for_all_conversations
 
@@ -62,7 +63,6 @@ class ConversationFinder
 
   def set_assignee_type
     @assignee_type_id = ASSIGNEE_TYPES[ASSIGNEE_TYPES_BY_ID[params[:assignee_type_id].to_i]]
-    # ente budhiparamaya neekam kandit enthu tonunu? ;)
   end
 
   def find_all_conversations
@@ -86,6 +86,10 @@ class ConversationFinder
     @conversations = @conversations.where(status: params[:status] || DEFAULT_STATUS)
   end
 
+  def filter_by_labels
+    @conversations = @conversations.tagged_with(params[:labels], any: true)
+  end
+
   def set_count_for_all_conversations
     [
       @conversations.assigned_to(current_user).count,

app/views/api/v1/labels/most_used.json.jbuilder

@@ -0,0 +1,3 @@
+json.payload do
+  json.labels @labels
+end