audit_trail

defmodule AuditTrail.Adapters.SMTP do
  @moduledoc """
  Raw SMTP adapter using Swoosh's SMTP adapter directly.
  Does not require a host-app Mailer module — reads SMTP config from AuditTrail config.

  Config:

      config :audit_trail,
        mailer_adapter: {AuditTrail.Adapters.SMTP, []},
        from_email:     {"MyApp Alerts", "alerts@myapp.com"},
        smtp: [
          relay:    "smtp.gmail.com",
          username: "alerts@myapp.com",
          password: System.get_env("SMTP_PASSWORD"),
          port:     587,
          tls:      :always,
          auth:     :always
        ]
  """

  def deliver(%{to: to, subject: subject, body: body}) do
    smtp_config = AuditTrail.Config.smtp_config()
    from_email = AuditTrail.Config.from_email()

    email =
      Swoosh.Email.new()
      |> Swoosh.Email.to(to)
      |> Swoosh.Email.from(from_email)
      |> Swoosh.Email.subject(subject)
      |> Swoosh.Email.text_body(body)

    Swoosh.Adapters.SMTP.deliver(email, smtp_config)
  rescue
    e ->
      require Logger
      Logger.error("[AuditTrail.Adapters.SMTP] Delivery failed: #{inspect(e)}")
      {:error, e}
  end
end