Create profile image generator (#8695)

* Create profile image generator

* Update spec/services/users/profile_image_generator_spec.rb

Co-authored-by: Mac Siri <krairit.siri@gmail.com>

* Remove difficult cloudinary dependency

Co-authored-by: Mac Siri <krairit.siri@gmail.com>

app/services/users/profile_image_generator.rb

@@ -0,0 +1,26 @@
+module Users
+  module ProfileImageGenerator
+    EMOJI_IMAGES =
+      %w[dog-face_1f436.png
+         monkey-face_1f435.png
+         unicorn_1f984.png
+         mouse-face_1f42d.png
+         hamster_1f439.png
+         koala_1f428.png
+         bear_1f43b.png
+         panda_1f43c.png
+         penguin_1f427.png
+         spouting-whale_1f433.png
+         honeybee_1f41d.png
+         lion_1f981.png
+         tiger-face_1f42f.png
+         fox_1f98a.png
+         wolf_1f43a.png].freeze
+    BACKGROUND_HEXES = %w[#f68d8e #fce289 #f3f096 #55c1ae #88aedc #f8b4d0].freeze
+    def self.call
+      # This pulls from emojipedia source for the liberally open source twemoji lib.
+      # TODO: Make this much more interesting than just emojis.
+      "https://emojipedia-us.s3.dualstack.us-west-1.amazonaws.com/thumbs/240/twitter/248/" + EMOJI_IMAGES.sample
+    end
+  end
+end

spec/services/users/profile_image_generator_spec.rb

@@ -0,0 +1,7 @@
+require "rails_helper"
+
+RSpec.describe Users::ProfileImageGenerator, type: :service do
+  it "returns an emoji url" do
+    expect(described_class.call).to start_with("https://emojipedia-us.s3")
+  end
+end