From 7ff96fabe1aa61fa68b170e9bddffa241479be29 Mon Sep 17 00:00:00 2001
From: mrloyal <setop@zoocoop.com>
Date: Fri, 7 Jun 2024 08:15:09 +0200
Subject: [PATCH] feat: allow text message

---
 README.md                | 10 ++++++----
 lib/swoosh_mailinator.ex | 31 +++++++++++++++++++++++++++----
 mix.exs                  |  2 +-
 test/swoosh_mlntr.exs    | 40 +++++++++++++++++++++++++++++++++-------
 4 files changed, 67 insertions(+), 16 deletions(-)

diff --git a/README.md b/README.md
index cc961e0..8106b5f 100644
--- a/README.md
+++ b/README.md
@@ -2,11 +2,13 @@
 
 This project is an adapter for swoosh that relais any email to the Mailinator.com SMTP server, no mater the internet domain of the recipient.
 
-This service provide no encryption in transit (SSL/TLS) nor authentication.
+Mailinator does not support multipart messages (they are processed as attachment which are ignored). So the adapter ensure that there is only htlm or text part and not both.
 
-This service provide public access to mailboxes.
+The service provides no encryption in transit (SSL/TLS) nor authentication.
 
-Don't use this adapter for confidential information.
+The service provides public access to mailboxes.
+
+Don't use this adapter for private or confidential information.
 
 Use for tests only.
 
@@ -17,7 +19,7 @@ This module can be installed by adding `swoosh_mailinator` to your list of depen
 ```elixir
 def deps do
   [
-    {:swoosh_mailinator, "~> 0.1.0", git: "https://git.zoocoop.com/setop/swoosh_mailinator"}
+    {:swoosh_mailinator, "~> 0.2.0", git: "https://git.zoocoop.com/setop/swoosh_mailinator"}
   ]
 end
 ```
diff --git a/lib/swoosh_mailinator.ex b/lib/swoosh_mailinator.ex
index fcf49db..14a5991 100644
--- a/lib/swoosh_mailinator.ex
+++ b/lib/swoosh_mailinator.ex
@@ -36,18 +36,41 @@ defmodule Swoosh.Adapters.Mailinator do
   Don't use this adapter for confidential information.
 
   Use for tests only.
-
-  TODO: allow to choose from Text or HTML :prefer_html, :prefer_text
-  """
+"""
 
   use Swoosh.Adapter, required_config: []
 
   alias Swoosh.Email
   alias Swoosh.Mailer
 
-  def deliver(%Email{} = email, _) do
+  def deliver(%Email{html_body: html, text_body: text} = email, _) when is_nil(html) do
+    email |> delegate
+  end
+
+  def deliver(%Email{html_body: html, text_body: text} = email, _) when is_nil(text) do
+    email |> delegate
+  end
+
+  def deliver(%Email{html_body: _, text_body: _} = email, _) do
     email
     |> Map.put(:text_body, nil)
+    |> delegate
+  end
+
+  def deliver(%Email{text_body: _} = email, _) do
+    email
+    |> Map.put(:html_body, nil)
+    |> delegate
+  end
+
+  def deliver(%Email{html_body: _} = email, _) do
+    email
+    |> Map.put(:text_body, nil)
+    |> delegate
+  end
+
+  defp delegate(%Email{} = email) do
+    email
     |> Mailer.deliver([
       adapter: Swoosh.Adapters.SMTP,
       relay: "mail.mailinator.com",
diff --git a/mix.exs b/mix.exs
index 88d7439..d74a3e5 100644
--- a/mix.exs
+++ b/mix.exs
@@ -3,7 +3,7 @@ defmodule SwooshMailinator.MixProject do
 
   def project do
     [
-      version: "0.1.0",
+      version: "0.2.0",
       deps: [
           {:swoosh, "~> 1.7"},
         ]
diff --git a/test/swoosh_mlntr.exs b/test/swoosh_mlntr.exs
index e2a6546..f9f4353 100644
--- a/test/swoosh_mlntr.exs
+++ b/test/swoosh_mlntr.exs
@@ -11,20 +11,42 @@ defmodule Main do
   import Swoosh.Email
   import Swoosh.Mailer
 
-  def main do
-    mess = """
-Compose, deliver and test your emails easily in Elixir.
+  def test_both() do
+    prep()
+  end
 
-Swoosh comes with many adapters, including SendGrid, Mandrill, Mailgun, Postmark and SMTP. See the full list of adapters below.
+  def test_text_only() do
+    prep()
+    |> Map.delete(:html_body)
+  end
 
-The complete documentation for Swoosh is available online at HexDocs.
-"""
+  def test_text_nil() do
+    prep()
+    |> text_body(nil)
+  end
+
+  def test_html_only() do
+    prep()
+    |> Map.delete(:text_body)
+  end
+
+  def test_html_nil() do
+    prep()
+    |> html_body(nil)
+  end
+
+  def prep do
+    mess = "mess"
     new()
     |> to("mlkjhg@kiujygtrfedc.com")
     |> from({"Who Knows", "who.knows@nonexisting.tld"})
     |> subject("Hello, Swoosh!")
     |> html_body("<h1>Hello World</h1><p>"<>mess<>"</p>")
     |> text_body(mess)
+  end
+
+  def send(email) do
+    email
     |> IO.inspect()
     |> deliver([
       adapter: Swoosh.Adapters.Mailinator
@@ -32,4 +54,8 @@ The complete documentation for Swoosh is available online at HexDocs.
   end
 end
 
-Main.main() |> IO.inspect()
+Main.test_both()      |> Main.send() |> IO.inspect()
+Main.test_text_only() |> Main.send() |> IO.inspect()
+Main.test_html_only() |> Main.send() |> IO.inspect()
+Main.test_text_nil()  |> Main.send() |> IO.inspect()
+Main.test_html_nil()  |> Main.send() |> IO.inspect()