After "mix phx.gen.auth Admins Admin admins" with added working register and login path.

lib/beet_round_server/admins/admin_notifier.ex

@@ -0,0 +1,84 @@
+defmodule BeetRoundServer.Admins.AdminNotifier do
+  import Swoosh.Email
+
+  alias BeetRoundServer.Mailer
+  alias BeetRoundServer.Admins.Admin
+
+  # Delivers the email using the application mailer.
+  defp deliver(recipient, subject, body) do
+    email =
+      new()
+      |> to(recipient)
+      |> from({"BeetRoundServer", "contact@example.com"})
+      |> subject(subject)
+      |> text_body(body)
+
+    with {:ok, _metadata} <- Mailer.deliver(email) do
+      {:ok, email}
+    end
+  end
+
+  @doc """
+  Deliver instructions to update a admin email.
+  """
+  def deliver_update_email_instructions(admin, url) do
+    deliver(admin.email, "Update email instructions", """
+
+    ==============================
+
+    Hi #{admin.email},
+
+    You can change your email by visiting the URL below:
+
+    #{url}
+
+    If you didn't request this change, please ignore this.
+
+    ==============================
+    """)
+  end
+
+  @doc """
+  Deliver instructions to log in with a magic link.
+  """
+  def deliver_login_instructions(admin, url) do
+    case admin do
+      %Admin{confirmed_at: nil} -> deliver_confirmation_instructions(admin, url)
+      _ -> deliver_magic_link_instructions(admin, url)
+    end
+  end
+
+  defp deliver_magic_link_instructions(admin, url) do
+    deliver(admin.email, "Log in instructions", """
+
+    ==============================
+
+    Hi #{admin.email},
+
+    You can log into your account by visiting the URL below:
+
+    #{url}
+
+    If you didn't request this email, please ignore this.
+
+    ==============================
+    """)
+  end
+
+  defp deliver_confirmation_instructions(admin, url) do
+    deliver(admin.email, "Confirmation instructions", """
+
+    ==============================
+
+    Hi #{admin.email},
+
+    You can confirm your account by visiting the URL below:
+
+    #{url}
+
+    If you didn't create an account with us, please ignore this.
+
+    ==============================
+    """)
+  end
+end