# TODO rewrite with exunit

Mix.install(
  [
    {:swoosh, "~> 1.7"},
    {:gen_smtp, "~> 1.1"},
    {:hackney, "~> 1.8"},
    {:swoosh_mailinator, path: "."}, #app: false }
  ]
)

defmodule Main do
  import Swoosh.Email
  import Swoosh.Mailer

  def test_both() do
    prep()
  end

  def test_text_only() do
    prep()
    |> Map.delete(:html_body)
  end

  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 test_both_absent() do
    prep()
    |> Map.delete(:html_body)
    |> Map.delete(:text_body)
  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
    |> deliver([
      adapter: Swoosh.Adapters.Mailinator
    ])
  end
end

# ok cases
Main.test_both()      |> Main.send()
Main.test_text_only() |> Main.send()
Main.test_html_only() |> Main.send()
Main.test_text_nil()  |> Main.send()
Main.test_html_nil()  |> Main.send()

# failing cases
try do
  Main.test_both_absent() |> Main.send()
rescue
  FunctionClauseError -> "expected"
else
  _ -> "shoud have failed"
end