Add anonymous and remote participations

lib/web/email/checker.ex

@@ -10,4 +10,19 @@ defmodule Mobilizon.Web.Email.Checker do
   """
   @spec valid?(String.t()) :: boolean
   def valid?(email), do: email =~ @email_regex
+
+  @spec validate_changeset(Ecto.Changeset.t(), atom()) :: Ecto.Changeset.t()
+  def validate_changeset(%Ecto.Changeset{} = changeset, key \\ :email) do
+    changeset = Ecto.Changeset.validate_length(changeset, :email, min: 3, max: 250)
+
+    case Ecto.Changeset.fetch_change(changeset, key) do
+      {:ok, email} ->
+        if valid?(email),
+          do: changeset,
+          else: Ecto.Changeset.add_error(changeset, :email, "Email doesn't fit required format")
+
+      :error ->
+        changeset
+    end
+  end
 end

lib/web/email/participation.ex

@@ -2,26 +2,34 @@ defmodule Mobilizon.Web.Email.Participation do
   @moduledoc """
   Handles emails sent about participation.
   """
-
   use Bamboo.Phoenix, view: Mobilizon.Web.EmailView
 
   import Bamboo.Phoenix
-
   import Mobilizon.Web.Gettext
 
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Config
   alias Mobilizon.Events.Participant
+  alias Mobilizon.Users
   alias Mobilizon.Users.User
-
   alias Mobilizon.Web.{Email, Gettext}
 
   @doc """
   Send emails to local user
   """
   def send_emails_to_local_user(
-        %Participant{actor: %Actor{user_id: nil} = _actor} = _participation
-      ),
-      do: :ok
+        %Participant{actor: %Actor{user_id: nil, id: actor_id} = _actor} = participation
+      ) do
+    if actor_id == Config.anonymous_actor_id() do
+      %{email: email} = Map.get(participation, :metadata)
+
+      email
+      |> participation_updated(participation)
+      |> Email.Mailer.deliver_later()
+    end
+
+    :ok
+  end
 
   @doc """
   Send emails to local user
@@ -29,7 +37,7 @@ defmodule Mobilizon.Web.Email.Participation do
   def send_emails_to_local_user(
         %Participant{actor: %Actor{user_id: user_id} = _actor} = participation
       ) do
-    with %User{} = user <- Mobilizon.Users.get_user!(user_id) do
+    with %User{} = user <- Users.get_user!(user_id) do
       user
       |> participation_updated(participation)
       |> Email.Mailer.deliver_later()
@@ -38,11 +46,21 @@ defmodule Mobilizon.Web.Email.Participation do
     end
   end
 
-  @spec participation_updated(User.t(), Participant.t(), String.t()) :: Bamboo.Email.t()
+  @spec participation_updated(String.t() | User.t(), Participant.t(), String.t()) ::
+          Bamboo.Email.t()
   def participation_updated(user, participant, locale \\ "en")
 
+  @spec participation_updated(User.t(), Participant.t(), String.t()) :: Bamboo.Email.t()
   def participation_updated(
         %User{email: email},
+        %Participant{} = participant,
+        locale
+      ),
+      do: participation_updated(email, participant, locale)
+
+  @spec participation_updated(String.t(), Participant.t(), String.t()) :: Bamboo.Email.t()
+  def participation_updated(
+        email,
         %Participant{event: event, role: :rejected},
         locale
       ) do
@@ -61,9 +79,9 @@ defmodule Mobilizon.Web.Email.Participation do
     |> render(:event_participation_rejected)
   end
 
-  @spec participation_updated(User.t(), Participant.t(), String.t()) :: Bamboo.Email.t()
+  @spec participation_updated(String.t(), Participant.t(), String.t()) :: Bamboo.Email.t()
   def participation_updated(
-        %User{email: email},
+        email,
         %Participant{event: event, role: :participant},
         locale
       ) do
@@ -81,4 +99,26 @@ defmodule Mobilizon.Web.Email.Participation do
     |> assign(:subject, subject)
     |> render(:event_participation_approved)
   end
+
+  @spec anonymous_participation_confirmation(String.t(), Participant.t(), String.t()) ::
+          Bamboo.Email.t()
+  def anonymous_participation_confirmation(
+        email,
+        %Participant{event: event, role: :not_confirmed} = participant,
+        locale \\ "en"
+      ) do
+    Gettext.put_locale(locale)
+
+    subject =
+      gettext(
+        "Confirm your participation to event %{title}",
+        title: event.title
+      )
+
+    Email.base_email(to: email, subject: subject)
+    |> assign(:locale, locale)
+    |> assign(:participant, participant)
+    |> assign(:subject, subject)
+    |> render(:anonymous_participation_confirmation)
+  end
 end