Add search and sort functions to hashtag admin UI (#11829)

* Add search and sort functions to hashtag admin UI

* Move scope processing from tags_controller to tag_filter

* Fix based on method naming conventions

* Fixed not to get 500 errors for invalid requests

7 files changed, 81 insertions, 19 deletions

diff --git a/app/controllers/admin/tags_controller.rb b/app/controllers/admin/tags_controller.rb
index 376ebe44d..65341bbfb 100644
--- a/app/controllers/admin/tags_controller.rb
+++ b/app/controllers/admin/tags_controller.rb
@@ -2,7 +2,6 @@
 
 module Admin
   class TagsController < BaseController
-    before_action :set_tags, only: :index
     before_action :set_tag, except: [:index, :batch, :approve_all, :reject_all]
     before_action :set_usage_by_domain, except: [:index, :batch, :approve_all, :reject_all]
     before_action :set_counters, except: [:index, :batch, :approve_all, :reject_all]
@@ -10,6 +9,7 @@ module Admin
     def index
       authorize :tag, :index?
 
+      @tags = filtered_tags.page(params[:page])
       @form = Form::TagBatch.new
     end
 
@@ -48,10 +48,6 @@ module Admin
 
     private
 
-    def set_tags
-      @tags = filtered_tags.page(params[:page])
-    end
-
     def set_tag
       @tag = Tag.find(params[:id])
     end
@@ -73,16 +69,11 @@ module Admin
     end
 
     def filtered_tags
-      scope = Tag
-      scope = scope.discoverable if filter_params[:context] == 'directory'
-      scope = scope.unreviewed if filter_params[:review] == 'unreviewed'
-      scope = scope.reviewed.order(reviewed_at: :desc) if filter_params[:review] == 'reviewed'
-      scope = scope.pending_review.order(requested_review_at: :desc) if filter_params[:review] == 'pending_review'
-      scope.order(max_score: :desc)
+      TagFilter.new(filter_params).results
     end
 
     def filter_params
-      params.slice(:context, :review, :page).permit(:context, :review, :page)
+      params.slice(:directory, :reviewed, :unreviewed, :pending_review, :page, :popular, :active, :name).permit(:directory, :reviewed, :unreviewed, :pending_review, :page, :popular, :active, :name)
     end
 
     def tag_params
diff --git a/app/helpers/admin/filter_helper.rb b/app/helpers/admin/filter_helper.rb
index 506429e10..8af1683e7 100644
--- a/app/helpers/admin/filter_helper.rb
+++ b/app/helpers/admin/filter_helper.rb
@@ -5,7 +5,7 @@ module Admin::FilterHelper
   REPORT_FILTERS       = %i(resolved account_id target_account_id).freeze
   INVITE_FILTER        = %i(available expired).freeze
   CUSTOM_EMOJI_FILTERS = %i(local remote by_domain shortcode).freeze
-  TAGS_FILTERS         = %i(context review).freeze
+  TAGS_FILTERS         = %i(directory reviewed unreviewed pending_review popular active name).freeze
   INSTANCES_FILTERS    = %i(limited by_domain).freeze
   FOLLOWERS_FILTERS    = %i(relationship status by_domain activity order).freeze
 
diff --git a/app/models/tag.rb b/app/models/tag.rb
index a6aed0d68..4e77c404d 100644
--- a/app/models/tag.rb
+++ b/app/models/tag.rb
@@ -39,6 +39,7 @@ class Tag < ApplicationRecord
   scope :listable, -> { where(listable: [true, nil]) }
   scope :discoverable, -> { listable.joins(:account_tag_stat).where(AccountTagStat.arel_table[:accounts_count].gt(0)).order(Arel.sql('account_tag_stats.accounts_count desc')) }
   scope :most_used, ->(account) { joins(:statuses).where(statuses: { account: account }).group(:id).order(Arel.sql('count(*) desc')) }
+  scope :matches_name, ->(value) { where(arel_table[:name].matches("#{value}%")) }
 
   delegate :accounts_count,
            :accounts_count=,
diff --git a/app/models/tag_filter.rb b/app/models/tag_filter.rb
new file mode 100644
index 000000000..8921e186b
--- /dev/null
+++ b/app/models/tag_filter.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+class TagFilter
+  attr_reader :params
+
+  def initialize(params)
+    @params = params
+  end
+
+  def results
+    scope = Tag.unscoped
+
+    params.each do |key, value|
+      next if key.to_s == 'page'
+
+      scope.merge!(scope_for(key, value.to_s.strip)) if value.present?
+    end
+
+    scope.order(id: :desc)
+  end
+
+  private
+
+  def scope_for(key, value)
+    case key.to_s
+    when 'directory'
+      Tag.discoverable
+    when 'reviewed'
+      Tag.reviewed.order(reviewed_at: :desc)
+    when 'unreviewed'
+      Tag.unreviewed
+    when 'pending_review'
+      Tag.pending_review.order(requested_review_at: :desc)
+    when 'popular'
+      Tag.order('max_score DESC NULLS LAST')
+    when 'active'
+      Tag.order('last_status_at DESC NULLS LAST')
+    when 'name'
+      Tag.matches_name(value)
+    else
+      raise "Unknown filter: #{key}"
+    end
+  end
+end
diff --git a/app/views/admin/tags/index.html.haml b/app/views/admin/tags/index.html.haml
index 324d13d3e..cea1b71b5 100644
--- a/app/views/admin/tags/index.html.haml
+++ b/app/views/admin/tags/index.html.haml
@@ -8,16 +8,36 @@
   .filter-subset
     %strong= t('admin.tags.context')
     %ul
-      %li= filter_link_to t('generic.all'), context: nil
-      %li= filter_link_to t('admin.tags.directory'), context: 'directory'
+      %li= filter_link_to t('generic.all'), directory: nil
+      %li= filter_link_to t('admin.tags.directory'), directory: '1'
 
   .filter-subset
     %strong= t('admin.tags.review')
     %ul
-      %li= filter_link_to t('generic.all'), review: nil
-      %li= filter_link_to t('admin.tags.unreviewed'), review: 'unreviewed'
-      %li= filter_link_to t('admin.tags.reviewed'), review: 'reviewed'
-      %li= filter_link_to safe_join([t('admin.accounts.moderation.pending'), "(#{Tag.pending_review.count})"], ' '), review: 'pending_review'
+      %li= filter_link_to t('generic.all'), reviewed: nil, unreviewed: nil, pending_review: nil
+      %li= filter_link_to t('admin.tags.unreviewed'), unreviewed: '1', reviewed: nil, pending_review: nil
+      %li= filter_link_to t('admin.tags.reviewed'), reviewed: '1', unreviewed: nil, pending_review: nil
+      %li= filter_link_to safe_join([t('admin.accounts.moderation.pending'), "(#{Tag.pending_review.count})"], ' '), pending_review: '1', reviewed: nil, unreviewed: nil
+
+  .filter-subset
+    %strong= t('generic.order_by')
+    %ul
+      %li= filter_link_to t('admin.tags.most_recent'), popular: nil, active: nil
+      %li= filter_link_to t('admin.tags.most_popular'), popular: '1', active: nil
+      %li= filter_link_to t('admin.tags.last_active'), active: '1', popular: nil
+
+= form_tag admin_tags_url, method: 'GET', class: 'simple_form' do
+  .fields-group
+    - Admin::FilterHelper::TAGS_FILTERS.each do |key|
+      = hidden_field_tag key, params[key] if params[key].present?
+
+    - %i(name).each do |key|
+      .input.string.optional
+        = text_field_tag key, params[key], class: 'string optional', placeholder: I18n.t("admin.tags.#{key}")
+
+    .actions
+      %button= t('admin.accounts.search')
+      = link_to t('admin.accounts.reset'), admin_tags_path, class: 'button negative'
 
 %hr.spacer/
 
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 8c9fe89f8..f05fdd48b 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -521,6 +521,10 @@ en:
       context: Context
       directory: In directory
       in_directory: "%{count} in directory"
+      last_active: Last active
+      most_popular: Most popular
+      most_recent: Most recent
+      name: Hashtag
       review: Review status
       reviewed: Reviewed
       title: Hashtags
diff --git a/config/locales/simple_form.en.yml b/config/locales/simple_form.en.yml
index 2e5982de9..c542377a9 100644
--- a/config/locales/simple_form.en.yml
+++ b/config/locales/simple_form.en.yml
@@ -131,6 +131,8 @@ en:
         must_be_follower: Block notifications from non-followers
         must_be_following: Block notifications from people you don't follow
         must_be_following_dm: Block direct messages from people you don't follow
+      invite:
+        comment: Comment
       invite_request:
         text: Why do you want to join?
       notification_emails: