Send mail to facilitators when they are invited to manage an event

CHANGELOG.md

@@ -5,6 +5,7 @@
 - Add pinned messages (#62) (@haruncurak)
 - Add reset password feature
 - Add Postmark adapter
+- Add the ability to send mail to facilitators invited to manage an event
 - Allow navigation within presenter window (#63) (@railsmechanic)
 - Security updates
 

lib/claper/accounts/leader_notifier.ex

@@ -0,0 +1,12 @@
+defmodule Claper.Accounts.LeaderNotifier do
+  alias Claper.Mailer
+
+  def deliver_event_invitation(event_name, email, url) do
+    e = ClaperWeb.Notifiers.LeaderNotifier.event_invitation(event_name, email, url)
+
+    with {:ok, _metadata} <- Mailer.deliver(e) do
+      {:ok, email}
+    end
+  end
+
+end

lib/claper_web/live/event_live/event_form_component.ex

@@ -161,7 +161,7 @@ defmodule ClaperWeb.EventLive.EventFormComponent do
            |> Map.put("user_id", socket.assigns.current_user.id)
          ) do
       {:ok, event} ->
-        with e <- Events.get_event!(event.uuid, [:presentation_file]) do
+        with e <- Events.get_event!(event.uuid, [:presentation_file, :leaders]) do
           Task.Supervisor.async_nolink(Claper.TaskSupervisor, fn ->
             Claper.Tasks.Converter.convert(
               socket.assigns.current_user.id,
@@ -171,6 +171,10 @@ defmodule ClaperWeb.EventLive.EventFormComponent do
               e.presentation_file.id
             )
           end)
+
+          Enum.each(e.leaders, fn leader ->
+            Claper.Accounts.LeaderNotifier.deliver_event_invitation(e.name, leader.email, Routes.event_index_url(socket, :index))
+          end)
         end
 
         {:noreply,
@@ -188,9 +192,11 @@ defmodule ClaperWeb.EventLive.EventFormComponent do
            socket.assigns.event,
            event_params
          ) do
-      {:ok, _event} ->
+      {:ok, event} ->
         handle_file_conversion(socket, hash, ext)
 
+        send_email_to_leaders(socket, event)
+
         {:noreply,
          socket
          |> put_flash(:info, gettext("Updated successfully"))
@@ -225,6 +231,20 @@ defmodule ClaperWeb.EventLive.EventFormComponent do
     Application.get_env(:claper, :storage_dir)
   end
 
+  defp send_email_to_leaders(socket, event) do
+    with e <- Events.get_event!(event.uuid, [:leaders]) do
+      # Get the leaders before the update
+      previous_leaders = socket.assigns.event.leaders
+
+      Enum.each(e.leaders, fn leader ->
+        # Only send email if leader was not present before the update
+        unless Enum.member?(previous_leaders, leader) do
+          Claper.Accounts.LeaderNotifier.deliver_event_invitation(e.name, leader.email, Routes.event_index_url(socket, :index))
+        end
+      end)
+    end
+  end
+
   def error_to_string(:too_large), do: gettext("Your file is too large")
   def error_to_string(:not_accepted), do: gettext("You have selected an incorrect file type")
   def error_to_string(:external_client_failure), do: gettext("Upload failed")

lib/claper_web/notifiers/leader_notifier.ex

@@ -0,0 +1,15 @@
+defmodule ClaperWeb.Notifiers.LeaderNotifier do
+  use Phoenix.Swoosh, view: ClaperWeb.LeaderNotifierView, layout: {ClaperWeb.LayoutView, :email}
+  import ClaperWeb.Gettext
+
+  def event_invitation(event_name, email, url) do
+    new()
+    |> to(email)
+    |> from(
+      {Application.get_env(:claper, :mail) |> Keyword.get(:from_name),
+       Application.get_env(:claper, :mail) |> Keyword.get(:from)}
+    )
+    |> subject(gettext("You have been invited to manage an event"))
+    |> render_body("invitation.html", %{event_name: event_name, leader_email: email, url: url})
+  end
+end

lib/claper_web/templates/leader_notifier/invitation.html.heex

@@ -0,0 +1,57 @@
+<tr>
+  <td>
+    <table
+      width="95%"
+      border="0"
+      align="center"
+      cellpadding="0"
+      cellspacing="0"
+      style="max-width:670px;background:#fff; border-radius:3px; text-align:center;-webkit-box-shadow:0 6px 18px 0 rgba(0,0,0,.06);-moz-box-shadow:0 6px 18px 0 rgba(0,0,0,.06);box-shadow:0 6px 18px 0 rgba(0,0,0,.06);"
+    >
+      <tr>
+        <td style="height:40px;">&nbsp;</td>
+      </tr>
+      <tr>
+        <td style="padding:0 35px;">
+          <h1 style="color:#1e1e2d; font-weight:500; margin:0;font-size:32px;font-family:'Rubik',sans-serif;">
+            <%= gettext("You have been invited") %>
+          </h1>
+          <span style="display:inline-block; vertical-align:middle; margin:29px 0 26px; border-bottom:1px solid #cecece; width:100px;">
+          </span>
+          <p style="color:#455056; font-size:15px;line-height:24px; margin:0;">
+            <%= gettext("Someone invited you to manage the event: %{name}", name: @event_name) %>
+          </p>
+          <p style="color:#455056; font-size:15px;line-height:24px; margin:0;">
+            <%= gettext("To accept the invitation, please login or create an account with this email: %{email}", email: @leader_email) %>
+          </p>
+          <a
+            href={@url}
+            target="_blank"
+            style="background:#8611ed;text-decoration:none !important; font-weight:500; margin-top:35px; color:#fff;text-transform:uppercase; font-size:14px;padding:10px 24px;display:inline-block;border-radius:50px;"
+          >
+            <%= gettext("Login or create account") %>
+          </a>
+        </td>
+      </tr>
+      <tr>
+        <td style="height:20px;">&nbsp;</td>
+      </tr>
+      <tr>
+        <td style="font-size: 0.8em; color: #6C6C6C">
+          <p class="sub">
+            <%= gettext(
+              "If you’re having trouble with the button above, copy and paste the URL below into your web browser"
+            ) %>.
+          </p>
+          <p class="sub"><%= @url %></p>
+        </td>
+      </tr>
+      <tr>
+        <td style="height:40px;">&nbsp;</td>
+      </tr>
+    </table>
+  </td>
+</tr>
+<tr>
+  <td style="height:20px;">&nbsp;</td>
+</tr>

lib/claper_web/views/leader_notifier_view.ex

@@ -0,0 +1,5 @@
+defmodule ClaperWeb.LeaderNotifierView do
+  use Phoenix.View, root: "lib/claper_web/templates"
+  import ClaperWeb.Gettext
+  use Phoenix.HTML
+end