class ChefCLI::PolicyfileServices::RmPolicyGroup

def http_client
  @http_client ||= Chef::ServerAPI.new(chef_config.chef_server_url,
    signing_key_filename: chef_config.client_key,
    client_name: chef_config.node_name)
end

def initialize(config: nil, ui: nil, policy_group: nil)
  @chef_config = config
  @ui = ui
  @policy_group = policy_group
  @undo_record = Policyfile::UndoRecord.new
  @undo_stack = Policyfile::UndoStack.new
end

def run
  undo_record.description = "delete-policy-group #{policy_group}"
  policy_group_list = http_client.get("/policy_groups")
  unless policy_group_list.key?(policy_group)
    ui.err("Policy group '#{policy_group}' does not exist on the server")
    return false
  end
  policy_group_info = policy_group_list[policy_group]
  policies_in_group = policy_group_info["policies"] || []
  policies_in_group.each do |name, revision_info|
    rev_id = revision_info["revision_id"]
    policy_revision_data = http_client.get("/policies/#{name}/revisions/#{rev_id}")
    undo_record.add_policy_revision(name, policy_group, policy_revision_data)
  end
  http_client.delete("/policy_groups/#{policy_group}")
  undo_record.add_policy_group(policy_group)
  ui.err("Removed policy group '#{policy_group}'.")
  undo_stack.push(undo_record)
rescue => e
  raise DeletePolicyGroupError.new("Failed to delete policy group '#{policy_group}'", e)
end