tags: move tag category definitions out of the config file.

Move all the code for defining tag categories from the config file to
TagCategory. It didn't belong in the config because it's not possible to
add new tag categories purely in the config without editing other things
like the CSS.

Also change it so that tag colors are hardcoded in the CSS instead of
generated using ERB. Generating the CSS in ERB meant that the Docker
build had to recompile the CSS on every commit, even when it didn't
change, because it relied on Ruby code outside the CSS that we couldn't
guarantee didn't change.

app/javascript/src/styles/common/tags.scss.erb

@@ -1,13 +1,64 @@
-<% TagCategory.css_mapping.each do |category,cssmap| %>
+.tag-type-0 a, a.tag-type-0 {
-  .tag-type-<%= category %> a, a.tag-type-<%= category %> {
+  color: var(--general-tag-color);
-    color: <%= cssmap["color"] %>;
+  color: var(--general-tag-hover-color);
 
   &:link, &:visited {
-      color: <%= cssmap["color"] %>;
+    color: var(--general-tag-color);
   }
 
   &:hover {
-      color: <%= cssmap["hover"] %>;
+    color: var(--general-tag-hover-color);
+  }
+}
+
+.tag-type-1 a, a.tag-type-1 {
+  color: var(--artist-tag-color);
+  color: var(--artist-tag-hover-color);
+
+  &:link, &:visited {
+    color: var(--artist-tag-color);
+  }
+
+  &:hover {
+    color: var(--artist-tag-hover-color);
+  }
+}
+
+.tag-type-3 a, a.tag-type-3 {
+  color: var(--copyright-tag-color);
+  color: var(--copyright-tag-hover-color);
+
+  &:link, &:visited {
+    color: var(--copyright-tag-color);
+  }
+
+  &:hover {
+    color: var(--copyright-tag-hover-color);
+  }
+}
+
+.tag-type-4 a, a.tag-type-4 {
+  color: var(--character-tag-color);
+  color: var(--character-tag-hover-color);
+
+  &:link, &:visited {
+    color: var(--character-tag-color);
+  }
+
+  &:hover {
+    color: var(--character-tag-hover-color);
+  }
+}
+
+.tag-type-5 a, a.tag-type-5 {
+  color: var(--meta-tag-color);
+  color: var(--meta-tag-hover-color);
+
+  &:link, &:visited {
+    color: var(--meta-tag-color);
+  }
+
+  &:hover {
+    color: var(--meta-tag-hover-color);
   }
 }
-<% end %>

app/logical/post_query_builder.rb

@@ -665,10 +665,12 @@ class PostQueryBuilder
     when "duration_asc"
       relation = relation.joins(:media_asset).order("media_assets.duration ASC NULLS LAST, posts.id ASC")
 
-    when /(#{TagCategory.short_name_regex})tags(?:\Z|_desc)/
+    # artags_desc, copytags_desc, chartags_desc, gentags_desc, metatags_desc
+    when /(#{TagCategory.short_name_list.join("|")})tags(?:\Z|_desc)/
       relation = relation.order("posts.tag_count_#{TagCategory.short_name_mapping[$1]} DESC")
 
-    when /(#{TagCategory.short_name_regex})tags_asc/
+    # artags_asc, copytags_asc, chartags_asc, gentags_asc, metatags_asc
+    when /(#{TagCategory.short_name_list.join("|")})tags_asc/
       relation = relation.order("posts.tag_count_#{TagCategory.short_name_mapping[$1]} ASC")
 
     when "rank"

app/logical/tag_category.rb

@@ -1,80 +1,97 @@
 # Utility methods for working with tag categories (general, character,
 # copyright, artist, meta).
-class TagCategory
+
-  module Mappings
+module TagCategory
+  module_function
+
   # Returns a hash mapping various tag categories to a numerical value.
   def mapping
-      @@mapping ||=
+    {
-        Hash[
+      "ch" => 4,
-          Danbooru.config.full_tag_config_info.map { |k, v| v["extra"].map { |y| [y, v["category"]] }}.reduce([], :+)
+      "co" => 3,
-        ]
+      "gen" => 0,
-        .update(Hash[Danbooru.config.full_tag_config_info.map { |k, v| [v["short"], v["category"]] }])
+      "char" => 4,
-        .update(Hash[Danbooru.config.full_tag_config_info.map { |k, v| [k, v["category"]] }])
+      "copy" => 3,
+      "art" => 1,
+      "meta" => 5,
+      "general" => 0,
+      "character" => 4,
+      "copyright" => 3,
+      "artist" => 1,
+    }
   end
 
-    # Returns a hash mapping more suited for views
+  # The order of tags in dropdown lists.
   def canonical_mapping
-      @@canonical_mapping ||= Hash[Danbooru.config.full_tag_config_info.map { |k, v| [k.capitalize, v["category"]] }]
+    {
+      "Artist"    => 1,
+      "Copyright" => 3,
+      "Character" => 4,
+      "General"   => 0,
+      "Meta"      => 5,
+    }
   end
 
   # Returns a hash mapping numerical category values to their string equivalent.
   def reverse_mapping
-      @@reverse_mapping ||= Hash[Danbooru.config.full_tag_config_info.map { |k, v| [v["category"], k] }]
+    {
+      0 => "general",
+      4 => "character",
+      3 => "copyright",
+      1 => "artist",
+      5 => "meta",
+    }
   end
 
-    # Returns a hash mapping for the short name usage in metatags
   def short_name_mapping
-      @@short_name_mapping ||= Hash[Danbooru.config.full_tag_config_info.map { |k, v| [v["short"], k] }]
+    {
+      "art"  => "artist",
+      "copy" => "copyright",
+      "char" => "character",
+      "gen"  => "general",
+      "meta" => "meta",
+    }
   end
 
   # Returns a hash mapping for related tag buttons (javascripts/related_tag.js.erb)
   def related_button_mapping
-      @@related_button_mapping ||= Hash[Danbooru.config.full_tag_config_info.map { |k, v| [k, v["relatedbutton"]] }]
+    {
+      "general" => "General",
+      "character" => "Characters",
+      "copyright" => "Copyrights",
+      "artist" => "Artists",
+      "meta" => nil,
+    }
   end
 
-    # Returns a hash mapping for CSS (stylesheets/posts.scss.erb)
-    def css_mapping
-      @@css_mapping ||= Hash[Danbooru.config.full_tag_config_info.map { |k, v| [v["category"], v["css"]] }]
-    end
-  end
-
-  module Lists
   def categories
-      @@categories ||= Danbooru.config.full_tag_config_info.keys
+    %w[general character copyright artist meta]
   end
 
   def category_ids
-      @@category_ids ||= canonical_mapping.values
+    canonical_mapping.values
   end
 
   def short_name_list
-      @@short_name_list ||= short_name_mapping.keys
+    %w[art copy char gen meta]
   end
 
+  # The order of tags on the post page tag list.
   def split_header_list
-      Danbooru.config.split_tag_header_list
+    %w[artist copyright character general meta]
   end
 
+  # The order of tags inside the tag edit box, and on the comments page.
   def categorized_list
-      Danbooru.config.categorized_tag_list
+    %w[artist copyright character meta general]
   end
 
+  # The order of tags in the related tag buttons.
   def related_button_list
-      Danbooru.config.related_tag_button_list
+    %w[general artist character copyright]
-    end
-  end
-
-  module Regexes
-    def short_name_regex
-      @@short_name_regex ||= short_name_list.join("|")
   end
 
   def category_ids_regex
-      @@category_ids_regex ||= "[#{category_ids.join}]"
+    "[#{category_ids.join}]"
   end
 end
-
-  extend Mappings
-  extend Lists
-  extend Regexes
-end

config/danbooru_default_config.rb

@@ -215,83 +215,6 @@ module Danbooru
       # StorageManager::SFTP.new("www.example.com", base_dir: "/mnt/backup", ssh_options: {})
     end
 
-    # TAG CONFIGURATION
-
-    # Full tag configuration info for all tags
-    def full_tag_config_info
-      @full_tag_category_mapping ||= {
-        "general" => {
-          "category" => 0,
-          "short" => "gen",
-          "extra" => [],
-          "relatedbutton" => "General",
-          "css" => {
-            "color" => "var(--general-tag-color)",
-            "hover" => "var(--general-tag-hover-color)"
-          }
-        },
-        "character" => {
-          "category" => 4,
-          "short" => "char",
-          "extra" => ["ch"],
-          "relatedbutton" => "Characters",
-          "css" => {
-            "color" => "var(--character-tag-color)",
-            "hover" => "var(--character-tag-hover-color)"
-          }
-        },
-        "copyright" => {
-          "category" => 3,
-          "short" => "copy",
-          "extra" => ["co"],
-          "relatedbutton" => "Copyrights",
-          "css" => {
-            "color" => "var(--copyright-tag-color)",
-            "hover" => "var(--copyright-tag-hover-color)"
-          }
-        },
-        "artist" => {
-          "category" => 1,
-          "short" => "art",
-          "extra" => [],
-          "relatedbutton" => "Artists",
-          "css" => {
-            "color" => "var(--artist-tag-color)",
-            "hover" => "var(--artist-tag-hover-color)"
-          }
-        },
-        "meta" => {
-          "category" => 5,
-          "short" => "meta",
-          "extra" => [],
-          "relatedbutton" => nil,
-          "css" => {
-            "color" => "var(--meta-tag-color)",
-            "hover" => "var(--meta-tag-hover-color)"
-          }
-        }
-      }
-    end
-
-    # TAG ORDERS
-
-    # Sets the order of the split tag header list (presenters/tag_set_presenter.rb)
-    def split_tag_header_list
-      @split_tag_header_list ||= ["artist", "copyright", "character", "general", "meta"]
-    end
-
-    # Sets the order of the categorized tag string (presenters/post_presenter.rb)
-    def categorized_tag_list
-      @categorized_tag_list ||= ["artist", "copyright", "character", "meta", "general"]
-    end
-
-    # Sets the order of the related tag buttons (javascripts/related_tag.js)
-    def related_tag_button_list
-      @related_tag_button_list ||= ["general", "artist", "character", "copyright"]
-    end
-
-    # END TAG
-
     # Any custom code you want to insert into the default layout without
     # having to modify the templates.
     def custom_html_header_content