module EnvProcessing

def self.process(env)

Convert an env hash into a Kubernetes env array.

String/numeric values become plain env vars: "FOO" => "bar" => name: "FOO", value: "bar"

ExternalSecret::TemplateRef values become secretKeyRef env vars and register the template entry on the ExternalSecret: "FOO" => secret.template("{ .bar }") => name: "FOO", valueFrom: { secretKeyRef: { name: "secret-name", key: "FOO" } }

Secret::KeyRef values reference an existing secret's key directly (the same Secret.new(name:).key(...) form used by volume_mounts): "FOO" => Secret.new(name: "creds").key("bar") => name: "FOO", valueFrom: { secretKeyRef: { name: "creds", key: "bar" } }

def self.process(env)
  return env if env.is_a?(Array)
  return [] if env.nil?

  env.map do |key, value|
    key = key.to_s

    case value
    when ESO::ExternalSecret::TemplateRef
      value.secret.register_template!(key, value.template_value)
      { name: key, valueFrom: { secretKeyRef: { name: value.secret.secret_name, key: key } } }
    when Kube::Cluster::Standard::Secret::KeyRef
      { name: key, valueFrom: { secretKeyRef: { name: value.secret.secret_name, key: value.key_name } } }
    else
      { name: key, value: value.to_s }
    end
  end
end