mobilizon/lib/web/templates/email/activity/_comment_activity_item.html.eex

<%= case @activity.subject do %>
    <% :event_comment_mention -> %>
    <%= 
            dgettext("activity", "%{profile} mentionned you in a comment under event %{event}.", 
                %{
                    profile: "<b>#{Mobilizon.Actors.Actor.display_name_and_username(@activity.author)}</b>",
                    event: "<a href=\"#{
                        page_url(
                            Mobilizon.Web.Endpoint,
                            :event,
                            @activity.subject_params["event_uuid"]
                        ) |> URI.decode()}\">
                            #{@activity.subject_params["event_title"]}
                        </a>"
                }
            ) |> raw %>
    <% :participation_event_comment -> %>
    <%= 
            dgettext("activity", "%{profile} has posted an announcement under event %{event}.", 
                %{
                    profile: "<b>#{Mobilizon.Actors.Actor.display_name_and_username(@activity.author)}</b>",
                    event: "<a href=\"#{
                        page_url(
                            Mobilizon.Web.Endpoint,
                            :event,
                            @activity.subject_params["event_uuid"]
                        ) |> URI.decode()}\">
                            #{@activity.subject_params["event_title"]}
                        </a>"
                }
            ) |> raw %>
<% end %>