chore: init commit

in worker.../repo/GITFOLDER.zip is the .git folder.

worker-toolkit-stocks-in-the-future/repo/app/models/stock.rb

@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+class Stock < ApplicationRecord
+  has_many :portfolio_stocks, dependent: :restrict_with_error
+  has_many :orders, dependent: :restrict_with_error
+
+  validates :ticker, presence: true
+  validates(
+    :company_website,
+    format: {
+      with: URI::DEFAULT_PARSER.make_regexp(%w[http https]),
+      allow_blank: true
+    }
+  )
+
+  scope :active, -> { where(archived: false) }
+  scope :archived, -> { where(archived: true) }
+
+  def current_price
+    price_cents.to_f / 100
+  end
+
+  def yesterday_price
+    return current_price if yesterday_price_cents.nil?
+
+    yesterday_price_cents.to_f / 100
+  end
+
+  def percentage_change
+    return 0.0 if yesterday_price_cents.nil? || yesterday_price_cents.zero?
+
+    ((current_price - yesterday_price) / yesterday_price) * 100
+  end
+
+  def percentage_change_formatted
+    return "0.00%" if percentage_change.zero?
+
+    formatted = format("%.2f%%", percentage_change.abs)
+    percentage_change.positive? ? "+#{formatted}" : "-#{formatted}"
+  end
+end