#!/usr/bin/env ruby

require 'net/smtp'
require 'time'
require 'securerandom'
require 'tempfile'

admin_email = ENV.fetch('ADMIN_EMAIL') { fail "no ADMIN_EMAIL set" }
smtp_domain = ENV.fetch('SMTP_DOMAIN') { "example.net" }
from = "no-reply@#{smtp_domain}"
delivery_method = ENV.fetch('EMAIL_DELIVERY_METHOD') { "sendmail" }

msgstr = <<END_OF_MESSAGE
From: OpenProject <#{from}>
To: #{admin_email}
Subject: Test message
Date: #{Time.now.httpdate}
Message-Id: <#{SecureRandom.hex}@#{smtp_domain}>

This is a test message to verify your OpenProject settings.
If you see this, this means OpenProject email settings are working properly.
END_OF_MESSAGE

if delivery_method == "sendmail"
  puts "sending test email using sendmail..."
  tmpfile = Tempfile.new("mail-test")
  File.open(tmpfile.path, "w+") {|f| f << msgstr}
  system("cat #{tmpfile.path} | sendmail -i -t") || exit(1)
else
  puts "sending test email using SMTP..."
  Net::SMTP.start(
    ENV.fetch('SMTP_HOST'),
    ENV.fetch('SMTP_PORT'),
    ENV.fetch('SMTP_DOMAIN'),
    ENV.fetch('SMTP_USERNAME'),
    ENV.fetch('SMTP_PASSWORD'),
    :login
  ) do |smtp|
    smtp.send_message msgstr, from, admin_email
  end
end

