1 files changed, 84 insertions, 0 deletions
diff --git a/lib/gitlab/award_emoji.rb b/lib/gitlab/award_emoji.rb
new file mode 100644
index 00000000000..51b1df9ecbd
--- /dev/null
+++ b/lib/gitlab/award_emoji.rb
@@ -0,0 +1,84 @@
+module Gitlab
+  class AwardEmoji
+    CATEGORIES = {
+      other: "Other",
+      objects: "Objects",
+      places: "Places",
+      travel_places: "Travel",
+      emoticons: "Emoticons",
+      objects_symbols: "Symbols",
+      nature: "Nature",
+      celebration: "Celebration",
+      people: "People",
+      activity: "Activity",
+      flags: "Flags",
+      food_drink: "Food"
+    }.with_indifferent_access
+
+    CATEGORY_ALIASES = {
+      symbols: "objects_symbols",
+      foods: "food_drink",
+      travel: "travel_places"
+    }.with_indifferent_access
+
+    def self.normalize_emoji_name(name)
+      aliases[name] || name
+    end
+
+    def self.emoji_by_category
+      unless @emoji_by_category
+        @emoji_by_category = Hash.new { |h, key| h[key] = [] }
+
+        emojis.each do |emoji_name, data|
+          data["name"] = emoji_name
+
+          # Skip Fitzpatrick(tone) modifiers
+          next if data["category"] == "modifier"
+
+          category = CATEGORY_ALIASES[data["category"]] || data["category"]
+
+          @emoji_by_category[category] << data
+        end
+
+        @emoji_by_category = @emoji_by_category.sort.to_h
+      end
+
+      @emoji_by_category
+    end
+
+    def self.emojis
+      @emojis ||=
+        begin
+          json_path = File.join(Rails.root, 'fixtures', 'emojis', 'index.json' )
+          JSON.parse(File.read(json_path))
+        end
+    end
+
+    def self.aliases
+      @aliases ||=
+        begin
+         json_path = File.join(Rails.root, 'fixtures', 'emojis', 'aliases.json' )
+         JSON.parse(File.read(json_path))
+       end
+    end
+
+    # Returns an Array of Emoji names and their asset URLs.
+    def self.urls
+      @urls ||= begin
+                  path = File.join(Rails.root, 'fixtures', 'emojis', 'digests.json')
+                  prefix = Gitlab::Application.config.assets.prefix
+                  digest = Gitlab::Application.config.assets.digest
+
+                  JSON.parse(File.read(path)).map do |hash|
+                    if digest
+                      fname = "#{hash['unicode']}-#{hash['digest']}"
+                    else
+                      fname = hash['unicode']
+                    end
+
+                    { name: hash['name'], path: "#{prefix}/#{fname}.png" }
+                  end
+                end
+    end
+  end
+end