Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/finders/conversation_finder.rb

@@ -0,0 +1,216 @@
+class ConversationFinder
+  attr_reader :current_user, :current_account, :params
+
+  DEFAULT_STATUS = 'open'.freeze
+  SORT_OPTIONS = {
+    'last_activity_at_asc' => %w[sort_on_last_activity_at asc],
+    'last_activity_at_desc' => %w[sort_on_last_activity_at desc],
+    'created_at_asc' => %w[sort_on_created_at asc],
+    'created_at_desc' => %w[sort_on_created_at desc],
+    'priority_asc' => %w[sort_on_priority asc],
+    'priority_desc' => %w[sort_on_priority desc],
+    'waiting_since_asc' => %w[sort_on_waiting_since asc],
+    'waiting_since_desc' => %w[sort_on_waiting_since desc],
+
+    # To be removed in v3.5.0
+    'latest' => %w[sort_on_last_activity_at desc],
+    'sort_on_created_at' => %w[sort_on_created_at asc],
+    'sort_on_priority' => %w[sort_on_priority desc],
+    'sort_on_waiting_since' => %w[sort_on_waiting_since asc]
+  }.with_indifferent_access
+  # assumptions
+  # inbox_id if not given, take from all conversations, else specific to inbox
+  # assignee_type if not given, take 'all'
+  # conversation_status if not given, take 'open'
+
+  # response of this class will be of type
+  # {conversations: [array of conversations], count: {open: count, resolved: count}}
+
+  # params
+  # assignee_type, inbox_id, :status
+
+  def initialize(current_user, params)
+    @current_user = current_user
+    @current_account = current_user.account
+    @is_admin = current_account.account_users.find_by(user_id: current_user.id)&.administrator?
+    @params = params
+  end
+
+  def perform
+    set_up
+
+    mine_count, unassigned_count, all_count, = set_count_for_all_conversations
+    assigned_count = all_count - unassigned_count
+
+    filter_by_assignee_type
+
+    {
+      conversations: conversations,
+      count: {
+        mine_count: mine_count,
+        assigned_count: assigned_count,
+        unassigned_count: unassigned_count,
+        all_count: all_count
+      }
+    }
+  end
+
+  def perform_meta_only
+    set_up
+
+    mine_count, unassigned_count, all_count, = set_count_for_all_conversations
+    assigned_count = all_count - unassigned_count
+
+    {
+      count: {
+        mine_count: mine_count,
+        assigned_count: assigned_count,
+        unassigned_count: unassigned_count,
+        all_count: all_count
+      }
+    }
+  end
+
+  private
+
+  def set_up
+    set_inboxes
+    set_team
+    set_assignee_type
+
+    find_all_conversations
+    filter_by_status unless params[:q]
+    filter_by_team
+    filter_by_labels
+    filter_by_query
+    filter_by_source_id
+  end
+
+  def set_inboxes
+    @inbox_ids = if params[:inbox_id]
+                   @current_user.assigned_inboxes.where(id: params[:inbox_id])
+                 else
+                   @current_user.assigned_inboxes.pluck(:id)
+                 end
+  end
+
+  def set_assignee_type
+    @assignee_type = params[:assignee_type]
+  end
+
+  def set_team
+    @team = current_account.teams.find(params[:team_id]) if params[:team_id]
+  end
+
+  def find_conversation_by_inbox
+    @conversations = current_account.conversations
+
+    return unless params[:inbox_id]
+
+    @conversations = @conversations.where(inbox_id: @inbox_ids)
+  end
+
+  def find_all_conversations
+    find_conversation_by_inbox
+    # Apply permission-based filtering
+    @conversations = Conversations::PermissionFilterService.new(
+      @conversations,
+      current_user,
+      current_account
+    ).perform
+    filter_by_conversation_type if params[:conversation_type]
+    @conversations
+  end
+
+  def filter_by_assignee_type
+    case @assignee_type
+    when 'me'
+      @conversations = @conversations.assigned_to(current_user)
+    when 'unassigned'
+      @conversations = @conversations.unassigned
+    when 'assigned'
+      @conversations = @conversations.assigned
+    end
+    @conversations
+  end
+
+  def filter_by_conversation_type
+    case @params[:conversation_type]
+    when 'mention'
+      conversation_ids = current_account.mentions.where(user: current_user).pluck(:conversation_id)
+      @conversations = @conversations.where(id: conversation_ids)
+    when 'participating'
+      @conversations = current_user.participating_conversations.where(account_id: current_account.id)
+    when 'unattended'
+      @conversations = @conversations.unattended
+    end
+    @conversations
+  end
+
+  def filter_by_query
+    return unless params[:q]
+
+    allowed_message_types = [Message.message_types[:incoming], Message.message_types[:outgoing]]
+    @conversations = conversations.joins(:messages).where('messages.content ILIKE :search', search: "%#{params[:q]}%")
+                                  .where(messages: { message_type: allowed_message_types }).includes(:messages)
+                                  .where('messages.content ILIKE :search', search: "%#{params[:q]}%")
+                                  .where(messages: { message_type: allowed_message_types })
+  end
+
+  def filter_by_status
+    return if params[:status] == 'all'
+
+    @conversations = @conversations.where(status: params[:status] || DEFAULT_STATUS)
+  end
+
+  def filter_by_team
+    return unless @team
+
+    @conversations = @conversations.where(team: @team)
+  end
+
+  def filter_by_labels
+    return unless params[:labels]
+
+    @conversations = @conversations.tagged_with(params[:labels], any: true)
+  end
+
+  def filter_by_source_id
+    return unless params[:source_id]
+
+    @conversations = @conversations.joins(:contact_inbox)
+    @conversations = @conversations.where(contact_inboxes: { source_id: params[:source_id] })
+  end
+
+  def set_count_for_all_conversations
+    [
+      @conversations.assigned_to(current_user).count,
+      @conversations.unassigned.count,
+      @conversations.count
+    ]
+  end
+
+  def current_page
+    params[:page] || 1
+  end
+
+  def conversations_base_query
+    @conversations.includes(
+      :taggings, :inbox, { assignee: { avatar_attachment: [:blob] } }, { contact: { avatar_attachment: [:blob] } }, :team, :contact_inbox
+    )
+  end
+
+  def conversations
+    @conversations = conversations_base_query
+
+    sort_by, sort_order = SORT_OPTIONS[params[:sort_by]] || SORT_OPTIONS['last_activity_at_desc']
+    @conversations = @conversations.send(sort_by, sort_order)
+
+    if params[:updated_within].present?
+      @conversations.where('conversations.updated_at > ?', Time.zone.now - params[:updated_within].to_i.seconds)
+    else
+      @conversations.page(current_page).per(ENV.fetch('CONVERSATION_RESULTS_PER_PAGE', '25').to_i)
+    end
+  end
+end
+ConversationFinder.prepend_mod_with('ConversationFinder')