Notify ninjas on their birthday

lib/bokken/accounts.ex

@@ -232,8 +232,11 @@ defmodule Bokken.Accounts do
 
   """
 
-  @spec list_ninjas(map()) :: list(Ninja.t())
-  def list_ninjas(args \\ %{})
+  def list_ninjas(preloads) when is_list(preloads) do
+    Ninja
+    |> Repo.all()
+    |> Repo.preload(preloads)
+  end
 
   def list_ninjas(%{"team_id" => team_id}) do
     team_id
@@ -253,7 +256,7 @@ defmodule Bokken.Accounts do
     |> Map.fetch!(:ninjas)
   end
 
-  def list_ninjas(_args) do
+  def list_ninjas do
     Ninja
     |> Repo.all()
   end
@@ -380,6 +383,16 @@ defmodule Bokken.Accounts do
     end
   end
 
+  def get_guardian_email_by_ninja(ninja: user) do
+    user =
+      user
+      |> Repo.preload(:ninja)
+
+    guardian = get_guardian!(user.ninja.guardian_id, [:user])
+
+    guardian.user.email
+  end
+
   alias Bokken.Accounts.Organizer
 
   @doc """

lib/bokken/application.ex

@@ -15,9 +15,11 @@ defmodule Bokken.Application do
       # Start the PubSub system
       {Phoenix.PubSub, name: Bokken.PubSub},
       # Start the Endpoint (http/https)
-      BokkenWeb.Endpoint
+      BokkenWeb.Endpoint,
       # Start a worker by calling: Bokken.Worker.start_link(arg)
       # {Bokken.Worker, arg}
+      Bokken.Periodically
+      # Executes a task periodically
     ]
 
     # See https://hexdocs.pm/elixir/Supervisor.html

lib/bokken/events/event_admin.ex

@@ -3,6 +3,7 @@ defmodule Bokken.Events.EventAdmin do
   The admin view config of events
   """
   alias Bokken.{Events, Pairings}
+  alias Bokken.Mailer
 
   def list_actions(_conn) do
     [
@@ -46,4 +47,20 @@ defmodule Bokken.Events.EventAdmin do
       enrollments_close: nil
     ]
   end
+
+  def send_email(users, email) do
+    users
+    |> List.foldl(
+      %{success: [], fail: []},
+      fn user, accumulator ->
+        case Mailer.deliver(email.(user)) do
+          {:ok, _} ->
+            %{success: [user.email | accumulator[:success]], fail: accumulator[:fail]}
+
+          {:error, _} ->
+            %{success: [accumulator[:success]], fail: [user.email | accumulator[:fail]]}
+        end
+      end
+    )
+  end
 end

lib/bokken/periodically.ex

@@ -0,0 +1,48 @@
+defmodule Bokken.Periodically do
+  @moduledoc """
+  Executes a task periodically.
+  """
+  use GenServer
+
+  alias Bokken.Accounts
+  alias BokkenWeb.EventsEmails
+  import Bokken.Events.EventAdmin
+
+  @one_day 24 * 60 * 60 * 1000
+
+  def start_link(_opts) do
+    GenServer.start_link(__MODULE__, %{})
+  end
+
+  def init(state) do
+    schedule_work()
+    {:ok, state}
+  end
+
+  def handle_info(:work, state) do
+    notify_ninja_birthday()
+    schedule_work()
+    {:noreply, state}
+  end
+
+  defp schedule_work do
+    Process.send_after(self(), :work, @one_day)
+  end
+
+  defp notify_ninja_birthday do
+    ninjas = Accounts.list_ninjas([:user])
+    current_time = Date.utc_today()
+
+    ninjas
+    |> Enum.filter(fn ninja ->
+      ninja.birthday.month == current_time.month && ninja.birthday.day == current_time.day &&
+        not is_nil(ninja.user)
+    end)
+    |> Enum.map(fn ninja -> ninja.user end)
+    |> send_email(fn user ->
+      EventsEmails.ninja_birthday_email(user.ninja,
+        to: Accounts.get_guardian_email_by_ninja(ninja: user)
+      )
+    end)
+  end
+end

lib/bokken_web/controllers/event_controller.ex

@@ -4,8 +4,8 @@ defmodule BokkenWeb.EventController do
   alias Bokken.Accounts
   alias Bokken.Events
   alias Bokken.Events.Event
-  alias Bokken.Mailer
   alias BokkenWeb.EventsEmails
+  import Bokken.Events.EventAdmin
 
   action_fallback BokkenWeb.FallbackController
 
@@ -143,20 +143,4 @@ defmodule BokkenWeb.EventController do
       |> render("emails.json", res)
     end
   end
-
-  defp send_email(users, email) do
-    users
-    |> List.foldl(
-      %{success: [], fail: []},
-      fn user, accumulator ->
-        case Mailer.deliver(email.(user)) do
-          {:ok, _} ->
-            %{success: [user.email | accumulator[:success]], fail: accumulator[:fail]}
-
-          {:error, _} ->
-            %{success: [accumulator[:success]], fail: [user.email | accumulator[:fail]]}
-        end
-      end
-    )
-  end
 end

lib/bokken_web/emails/event_emails.ex

@@ -54,6 +54,13 @@ defmodule BokkenWeb.EventsEmails do
     |> render_body(:mentor_event_reminder)
   end
 
+  def ninja_birthday_email(ninja, to: email) do
+    base_email(to: email)
+    |> subject("[CoderDojo Braga] O Dojo deseja-te parabéns!")
+    |> assign(:ninja, ninja)
+    |> render_body(:ninja_birthday)
+  end
+
   defp base_email(to: email) do
     new()
     |> from({"CoderDojo Braga", "[email protected]"})

lib/bokken_web/templates/email/ninja_birthday.html.eex

@@ -0,0 +1,72 @@
+<table class="wrapper" style="border-collapse: collapse;table-layout: fixed;min-width: 320px;width: 100%;background-color: #fff;" role="presentation" cellspacing="0" cellpadding="0">
+  <tbody>
+    <tr>
+      <td>
+        <div>
+          <div class="layout one-col fixed-width stack" style="Margin: 0 auto;max-width: 600px;min-width: 320px; width: 320px;width: calc(28000% - 167400px);overflow-wrap: break-word;word-wrap: break-word;word-break: break-word;">
+            <div class="layout__inner" style="border-collapse: collapse;display: table;width: 100%;background-color: #ffffff;">
+              <div class="column" style="text-align: left;color: #000;font-size: 16px;line-height: 24px;font-family: Avenir,sans-serif;">
+
+                <div style="Margin-left: 20px;Margin-right: 20px;">
+                  <div style="mso-line-height-rule: exactly;line-height: 23px;font-size: 1px;">&nbsp;</div>
+                </div>
+
+                <div style="Margin-left: 20px;Margin-right: 20px;">
+                  <div style="mso-line-height-rule: exactly;mso-text-raise: 11px;vertical-align: middle;">
+                    <h1 style="Margin-top: 16px;Margin-bottom: 20px; text-align:center">
+                      🥳 Aniversário 🥳
+                    </h1>
+                  </div>
+                </div>
+
+                <div style="Margin-left: 20px;Margin-right: 20px;">
+                  <div style="mso-line-height-rule: exactly;mso-text-raise: 11px;vertical-align: middle;">
+                    <p style="Margin-top: 16px;Margin-bottom: 20px; text-align:center">
+                      Olá! 👋
+                    </p>
+                  </div>
+                </div>
+
+                <div style="Margin-left: 20px;Margin-right: 20px;">
+                  <div style="mso-line-height-rule: exactly;mso-text-raise: 11px;vertical-align: middle;">
+                    <p style="Margin-top: 16px;Margin-bottom: 20px;">
+                      O CoderDojo Braga deseja-te um dia feliz e um ótimo aniversário. Esperamos por ti na pŕoxima sessão! 😄
+                    </p>
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <div style="mso-line-height-rule: exactly;line-height: 20px;font-size: 20px;">&nbsp;</div>
+
+          <div style="background-color: #ebebeb;">
+            <div class="layout one-col stack" style="Margin: 0 auto;max-width: 600px;min-width: 320px; width: 320px;width: calc(28000% - 167400px);overflow-wrap: break-word;word-wrap: break-word;word-break: break-word;">
+              <div class="layout__inner" style="border-collapse: collapse;display: table;width: 100%;">
+                <div class="column" style="text-align: left;color: #000;font-size: 16px;line-height: 24px;font-family: Avenir,sans-serif;">
+
+                  <div style="Margin-left: 20px;Margin-right: 20px;">
+                    <div style="mso-line-height-rule: exactly;line-height: 20px;font-size: 1px;">&nbsp;</div>
+                  </div>
+
+                  <div style="Margin-left: 20px;Margin-right: 20px;">
+                    <div style="mso-line-height-rule: exactly;line-height: 3px;font-size: 1px;">&nbsp;</div>
+                  </div>
+
+                  <div style="font-size: 12px;font-style: normal;font-weight: normal;line-height: 19px;" align="center">
+                    <a style="text-decoration: underline;transition: opacity 0.1s ease-in;color: #222d8f;" href="https://coderdojobraga.org/"><img style="border: 0;display: block;height: auto;width: 100%;max-width: 134px;" alt="CoderDojo Braga" src="https://coderdojo-braga.vercel.app/img/logo.svg" width="134"></a>
+                  </div>
+
+                  <div style="Margin-left: 20px;Margin-right: 20px;Margin-top: 20px;">
+                    <div style="mso-line-height-rule: exactly;line-height: 1px;font-size: 1px;">&nbsp;</div>
+                  </div>
+
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </td>
+    </tr>
+  </tbody>
+</table>

lib/bokken_web/templates/email/ninja_birthday.text.eex

@@ -0,0 +1,3 @@
+Olá! 👋
+
+O CoderDojo Braga deseja-te um dia feliz e um ótimo aniversário. Esperamos por ti na próxima sessão! 😄