sure/app/models/provider/simplefin_adapter.rb

class Provider::SimplefinAdapter < Provider::Base
  include Provider::Syncable
  include Provider::InstitutionMetadata

  # Register this adapter with the factory
  Provider::Factory.register("SimplefinAccount", self)

  # Define which account types this provider supports
  def self.supported_account_types
    %w[Depository CreditCard Loan Investment]
  end

  # Returns connection configurations for this provider
  def self.connection_configs(family:)
    return [] unless family.can_connect_simplefin?

    [ {
      key: "simplefin",
      name: "SimpleFIN",
      description: "Connect to your bank via SimpleFIN",
      can_connect: true,
      new_account_path: ->(accountable_type, return_to) {
        Rails.application.routes.url_helpers.new_simplefin_item_path(
          accountable_type: accountable_type
        )
      },
      existing_account_path: ->(account_id) {
        Rails.application.routes.url_helpers.select_existing_account_simplefin_items_path(
          account_id: account_id
        )
      }
    } ]
  end

  def provider_name
    "simplefin"
  end

  def sync_path
    Rails.application.routes.url_helpers.sync_simplefin_item_path(item)
  end

  def item
    provider_account.simplefin_item
  end

  def can_delete_holdings?
    false
  end

  def institution_domain
    org_data = provider_account.org_data
    return nil unless org_data.present?

    domain = org_data["domain"]
    url = org_data["url"] || org_data["sfin-url"]

    # Derive domain from URL if missing
    if domain.blank? && url.present?
      begin
        domain = URI.parse(url).host&.gsub(/^www\./, "")
      rescue URI::InvalidURIError
        Rails.logger.warn("Invalid institution URL for SimpleFin account #{provider_account.id}: #{url}")
      end
    end

    domain
  end

  def institution_name
    org_data = provider_account.org_data
    return nil unless org_data.present?

    org_data["name"] || item&.institution_name
  end

  def institution_url
    org_data = provider_account.org_data
    return nil unless org_data.present?

    org_data["url"] || org_data["sfin-url"] || item&.institution_url
  end

  def institution_color
    item&.institution_color
  end
end