add translation

lib/mv_web/live/auth/link_oidc_account_live.ex

@@ -29,13 +29,13 @@ defmodule MvWeb.LinkOidcAccountLive do
         {:error, _} ->
           {:ok,
            socket
-           |> put_flash(:error, gettext("Session expired. Please try again."))
+           |> put_flash(:error, dgettext("auth", "Session expired. Please try again."))
            |> redirect(to: ~p"/sign-in")}
       end
     else
       {:ok,
        socket
-       |> put_flash(:error, gettext("Invalid session. Please try again."))
+       |> put_flash(:error, dgettext("auth", "Invalid session. Please try again."))
        |> redirect(to: ~p"/sign-in")}
     end
   end
@@ -60,7 +60,7 @@ defmodule MvWeb.LinkOidcAccountLive do
         # Password incorrect
         {:noreply,
          socket
-         |> assign(:error, gettext("Incorrect password. Please try again."))
+         |> assign(:error, dgettext("auth", "Incorrect password. Please try again."))
          |> assign(:form, to_form(%{"password" => ""}))}
     end
   end
@@ -103,7 +103,8 @@ defmodule MvWeb.LinkOidcAccountLive do
          socket
          |> put_flash(
            :info,
-           gettext(
+           dgettext(
+             "auth",
              "Your OIDC account has been successfully linked! Redirecting to complete sign-in..."
            )
          )
@@ -112,7 +113,10 @@ defmodule MvWeb.LinkOidcAccountLive do
       {:error, error} ->
         {:noreply,
          socket
-         |> assign(:error, gettext("Failed to link account: %{error}", error: inspect(error)))
+         |> assign(
+           :error,
+           dgettext("auth", "Failed to link account: %{error}", error: inspect(error))
+         )
          |> assign(:form, to_form(%{"password" => ""}))}
     end
   end
@@ -121,10 +125,26 @@ defmodule MvWeb.LinkOidcAccountLive do
   def render(assigns) do
     ~H"""
     <div class="mx-auto max-w-sm mt-16">
+      <%!-- Language Selector --%>
+      <div class="flex justify-center mb-4">
+        <form method="post" action="/set_locale" class="text-sm">
+          <input type="hidden" name="_csrf_token" value={Plug.CSRFProtection.get_csrf_token()} />
+          <select
+            name="locale"
+            onchange="this.form.submit()"
+            class="select select-sm select-bordered"
+          >
+            <option value="de" selected={Gettext.get_locale() == "de"}>🇩🇪 Deutsch</option>
+            <option value="en" selected={Gettext.get_locale() == "en"}>🇬🇧 English</option>
+          </select>
+        </form>
+      </div>
+
       <.header class="text-center">
-        {gettext("Link OIDC Account")}
+        {dgettext("auth", "Link OIDC Account")}
         <:subtitle>
-          {gettext(
+          {dgettext(
+            "auth",
             "An account with email %{email} already exists. Please enter your password to link your OIDC account.",
             email: @user.email
           )}
@@ -134,7 +154,12 @@ defmodule MvWeb.LinkOidcAccountLive do
       <.form for={@form} id="link-oidc-form" phx-submit="submit" phx-change="validate" class="mt-8">
         <div class="space-y-6">
           <div>
-            <.input field={@form[:password]} type="password" label={gettext("Password")} required />
+            <.input
+              field={@form[:password]}
+              type="password"
+              label={dgettext("auth", "Password")}
+              required
+            />
           </div>
 
           <%= if @error do %>
@@ -144,8 +169,8 @@ defmodule MvWeb.LinkOidcAccountLive do
           <% end %>
 
           <div>
-            <.button phx-disable-with={gettext("Linking...")} class="w-full">
-              {gettext("Link Account")}
+            <.button phx-disable-with={dgettext("auth", "Linking...")} class="w-full">
+              {dgettext("auth", "Link Account")}
             </.button>
           </div>
         </div>
@@ -153,7 +178,7 @@ defmodule MvWeb.LinkOidcAccountLive do
 
       <div class="mt-4 text-center text-sm">
         <.link navigate={~p"/sign-in"} class="text-brand hover:underline">
-          {gettext("Cancel")}
+          {dgettext("auth", "Cancel")}
         </.link>
       </div>
     </div>

lib/mv_web/locale_controller.ex

@@ -4,6 +4,8 @@ defmodule MvWeb.LocaleController do
   def set_locale(conn, %{"locale" => locale}) do
     conn
     |> put_session(:locale, locale)
+    # Store locale in a cookie that persists beyond the session
+    |> put_resp_cookie("locale", locale, max_age: 365 * 24 * 60 * 60, same_site: "Lax")
     |> redirect(to: get_referer(conn) || "/")
   end
 

lib/mv_web/router.ex

@@ -144,6 +144,7 @@ defmodule MvWeb.Router do
   defp set_locale(conn, _opts) do
     locale =
       get_session(conn, :locale) ||
+        get_locale_from_cookie(conn) ||
         extract_locale_from_headers(conn.req_headers)
 
     Gettext.put_locale(MvWeb.Gettext, locale)
@@ -153,6 +154,13 @@ defmodule MvWeb.Router do
     |> assign(:locale, locale)
   end
 
+  defp get_locale_from_cookie(conn) do
+    case conn.req_cookies do
+      %{"locale" => locale} when locale in ["en", "de"] -> locale
+      _ -> nil
+    end
+  end
+
   # Get locale from user
   defp extract_locale_from_headers(headers) do
     headers