Avatar supports non-slack users

app/models/user.rb

@@ -147,7 +147,7 @@ class User < ApplicationRecord
     user = find_or_initialize_by(slack_uid: data.dig("authed_user", "id"))
     user.username = user_data.dig("user", "profile", "username")
     user.username ||= user_data.dig("user", "profile", "display_name_normalized")
-    user.avatar_url = user_data.dig("user", "profile", "image_192") || user_data.dig("user", "profile", "image_72")
+    user.slack_avatar_url = user_data.dig("user", "profile", "image_192") || user_data.dig("user", "profile", "image_72")
     # Store the OAuth data
     user.slack_access_token = data["authed_user"]["access_token"]
     user.slack_scopes = data["authed_user"]["scope"]&.split(/,\s*/)
@@ -165,6 +165,12 @@ class User < ApplicationRecord
     nil
   end
 
+  def avatar_url
+    return self.slack_avatar_url if self.slack_avatar_url.present?
+    return "https://initials.me/#{self.username}=50" if self.username.present?
+    "https://initials.me/#{self.email_addresses.first.email[0..1]}=50" if self.email_addresses.any?
+  end
+
   def project_names
     heartbeats.select(:project).distinct.pluck(:project)
   end

db/migrate/20250310165010_rename_avatar_url_to_slack_avatar_url_on_users.rb

@@ -0,0 +1,5 @@
+class RenameAvatarUrlToSlackAvatarUrlOnUsers < ActiveRecord::Migration[8.0]
+  def change
+    rename_column :users, :avatar_url, :slack_avatar_url
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_03_07_225347) do
+ActiveRecord::Schema[8.0].define(version: 2025_03_10_165010) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
 
@@ -224,7 +224,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_03_07_225347) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.string "username"
-    t.string "avatar_url"
+    t.string "slack_avatar_url"
     t.boolean "is_admin", default: false, null: false
     t.boolean "uses_slack_status", default: false, null: false
     t.string "slack_scopes", default: [], array: true