Refactor item search JSON, add appearances

Preparing to finally move wardrobe-2020's item search to use the main
app's API endpoints instead!

One blocker I forgot about here: Impress 2020 has actual support for
knowing an item's true appearance, like by reading the manifest and
stuff, that we haven't really ported over. I feel like maybe I should
pause and work on the changes to manifest-archiving that I'd been
planning anyway? I'll think about it.

app/controllers/items_controller.rb

@@ -11,9 +11,11 @@ class ItemsController < ApplicationController
         else
           per_page = 30
         end
+
         @items = @query.results.paginate(
           page: params[:page], per_page: per_page)
         assign_closeted!
+
         respond_to do |format|
           format.html {
             @campaign = Fundraising::Campaign.current rescue nil
@@ -24,13 +26,14 @@ class ItemsController < ApplicationController
             end
           }
           format.json {
-            render json: {items: @items, total_pages: @items.total_pages,
+            render json: {
-                          query: @query.to_s}
+              items: @items.as_json(
-          }
+                methods: [:nc?, :pb?, :owned?, :wanted?],
-          format.js {
+              ),
-            render json: {items: @items, total_pages: @items.total_pages,
+              appearances: load_appearances,
-                          query: @query.to_s},
+              total_pages: @items.total_pages,
-                   callback: params[:callback]
+              query: @query.to_s,
+            }
           }
         end
       end
@@ -46,7 +49,6 @@ class ItemsController < ApplicationController
           @campaign = Fundraising::Campaign.current rescue nil
           @newest_items = Item.newest.limit(18)
         }
-        format.js { render json: {error: '$q required'}}
       end
     end
   end
@@ -101,13 +103,19 @@ class ItemsController < ApplicationController
     current_user.assign_closeted_to_items!(@items) if user_signed_in?
   end
 
+  def load_appearances
+    pet_type_name = params[:with_appearances_for]
+    return {} if pet_type_name.blank?
+
+    pet_type = Item::Search::Query.load_pet_type_by_name(pet_type_name)
+    pet_type.appearances_for(@items.map(&:id))
+  end
+  
   def search_error(e)
     @items = []
     respond_to do |format|
       format.html { flash.now[:alert] = e.message; render }
       format.json { render :json => {error: e.message} }
-      format.js   { render :json => {error: e.message},
-                           :callback => params[:callback] }
     end
   end
 
@@ -122,7 +130,7 @@ class ItemsController < ApplicationController
         @query = params[:q]
         raise
       end
-    elsif q.is_a?(Hash)
+    elsif q.is_a?(ActionController::Parameters)
       @query = Item::Search::Query.from_params(q, current_user)
     end
   end

app/models/item.rb

@@ -153,11 +153,11 @@ class Item < ApplicationRecord
   end
 
   def owned?
-    @owned
+    @owned || false
   end
 
   def wanted?
-    @wanted
+    @wanted || false
   end
 
   def restricted_zones(options={})
@@ -445,8 +445,8 @@ class Item < ApplicationRecord
     @parent_swf_asset_relationships_to_update = rels
   end
 
-  Body = Struct.new(:id, :species)
   Appearance = Struct.new(:body, :swf_assets)
+  Appearance::Body = Struct.new(:id, :species)
   def appearances
     all_swf_assets = swf_assets.to_a
 
@@ -469,7 +469,7 @@ class Item < ApplicationRecord
     swf_assets_by_body_id.map do |body_id, body_specific_assets|
       swf_assets_for_body = body_specific_assets + swf_assets_for_all_bodies
       species = Species.with_body_id(body_id).first!
-      body = Body.new(body_id, species)
+      body = Appearance::Body.new(body_id, species)
       Appearance.new(body, swf_assets_for_body)
     end
   end

app/models/item/search/query.rb

@@ -46,17 +46,10 @@ class Item
               Filter.restricts(value) :
               Filter.not_restricts(value))
           when 'fits'
-            color_name, species_name = value.split('-')
+            pet_type = load_pet_type_by_name(value)
-            begin
-              pet_type = PetType.matching_name(color_name, species_name).first!
-            rescue ActiveRecord::RecordNotFound
-              message = I18n.translate('items.search.errors.not_found.pet_type',
-                name1: color_name.capitalize, name2: species_name.capitalize)
-              raise Item::Search::Error, message
-            end
             filters << (is_positive ?
-              Filter.fits(pet_type.body_id, color_name, species_name) :
+              Filter.fits(pet_type.body_id, value.downcase) :
-              Filter.not_fits(pet_type.body_id, color_name, species_name))
+              Filter.not_fits(pet_type.body_id, value.downcase))
           when 'species'
             begin
               species = Species.find_by_name!(value)
@@ -139,9 +132,11 @@ class Item
             pet_type = PetType.find(value)
             color_name = pet_type.color.name
             species_name = pet_type.species.name
+            # NOTE: Some color syntaxes are weird, like `fits:"polka dot-aisha"`!
+            value = "#{color_name}-#{species_name}"
             filters << (is_positive ?
-              Filter.fits(pet_type.body_id, color_name, species_name) :
+              Filter.fits(pet_type.body_id, value) :
-              Filter.not_fits(pet_type.body_id, color_name, species_name))
+              Filter.not_fits(pet_type.body_id, value))
           when 'user_closet_hanger_ownership'
             case value
             when 'true'
@@ -160,6 +155,18 @@ class Item
 
         self.new(filters, user)
       end
+
+      def self.load_pet_type_by_name(pet_type_string)
+        color_name, species_name = pet_type_string.split("-")
+
+        begin
+          PetType.matching_name(color_name, species_name).first!
+        rescue ActiveRecord::RecordNotFound
+          message = I18n.translate('items.search.errors.not_found.pet_type',
+            name1: color_name.capitalize, name2: species_name.capitalize)
+          raise Item::Search::Error, message
+        end
+      end
     end
 
     class Error < Exception
@@ -211,15 +218,11 @@ class Item
         self.new Item.not_restricts(value), "-restricts:#{q value}"
       end
 
-      def self.fits(body_id, color_name, species_name)
+      def self.fits(body_id, value)
-        # NOTE: Some color syntaxes are weird, like `fits:"polka dot-aisha"`!
-        value = "#{color_name.downcase}-#{species_name.downcase}"
         self.new Item.fits(body_id), "fits:#{q value}"
       end
 
-      def self.not_fits(body_id, color_name, species_name)
+      def self.not_fits(body_id, value)
-        # NOTE: Some color syntaxes are weird, like `fits:"polka dot-aisha"`!
-        value = "#{color_name.downcase}-#{species_name.downcase}"
         self.new Item.not_fits(body_id), "-fits:#{q value}"
       end
 
@@ -277,14 +280,6 @@ class Item
       def self.q(value)
         /\s/.match(value) ? '"' + value + '"' : value
       end
-
-      def self.build_fits_filter_text(color_name, species_name)
-        # NOTE: Colors like "Polka Dot" must be written as
-        # `fits:"polka dot-aisha"`.
-        value = "#{color_name.downcase}-#{species_name.downcase}"
-        value = '"' + value + '"' if value.include? ' '
-        "fits:#{value}"
-      end
     end
   end
 end

app/models/pet_type.rb

@@ -178,6 +178,18 @@ class PetType < ApplicationRecord
     }.first
   end
 
+  def appearances_for(item_ids)
+    # First, load all the relationships for these items that also fit this
+    # body.
+    relationships = ParentSwfAssetRelationship.includes(:swf_asset).
+      where(parent_type: "Item", parent_id: item_ids).
+      where(swf_asset: {body_id: [body_id, 0]})
+
+    # Then, convert this into a hash from item ID to SWF assets.
+    assets_by_item_id = relationships.group_by(&:parent_id).
+      transform_values { |rels| rels.map(&:swf_asset) }
+  end
+
   def self.all_by_ids_or_children(ids, pet_states)
     pet_states_by_pet_type_id = {}
     pet_states.each do |pet_state|

app/models/swf_asset.rb

@@ -82,7 +82,10 @@ class SwfAsset < ApplicationRecord
   scope :object_assets, -> { where(:type => Item::SwfAssetType) }
   scope :for_item_ids, ->(item_ids) {
     joins(:parent_swf_asset_relationships).
-      where(ParentSwfAssetRelationship.arel_table[:parent_id].in(item_ids))
+      where(parent_swf_asset_relationships: {
+        parent_type: "Item",
+        parent_id: item_ids,
+      })
   }
   scope :with_parent_ids, -> {
     select('swf_assets.*, parents_swf_assets.parent_id')