fix: clarify blocked request conversations

lib/who_need_help_web/live/request_live/show.ex

@@ -294,6 +294,7 @@ defmodule WhoNeedHelpWeb.RequestLive.Show do
          socket
          |> maybe_untrack_browser_presence()
          |> assign(:blocked_by_current, true)
+         |> assign(:interaction_blocked, true)
          |> assign(:messages, [])
          |> assign(:messages_cursor, nil)
          |> assign(:positions, %{})
@@ -316,9 +317,17 @@ defmodule WhoNeedHelpWeb.RequestLive.Show do
   def handle_event("unblock-user", _, socket) do
     case Trust.unblock(socket.assigns.current_scope, socket.assigns.other_user_id) do
       {:ok, _result} ->
+        interaction_blocked =
+          socket.assigns.other_user_id &&
+            Trust.blocked_between?(
+              socket.assigns.current_scope.user.id,
+              socket.assigns.other_user_id
+            )
+
         {:noreply,
          socket
          |> assign(:blocked_by_current, false)
+         |> assign(:interaction_blocked, interaction_blocked)
          |> put_flash(:info, gettext("User unblocked."))}
 
       {:error, reason} ->
@@ -432,6 +441,10 @@ defmodule WhoNeedHelpWeb.RequestLive.Show do
       :blocked_by_current,
       other_user_id && Trust.blocked_by?(current_user_id, other_user_id)
     )
+    |> assign(
+      :interaction_blocked,
+      other_user_id && Trust.blocked_between?(current_user_id, other_user_id)
+    )
     |> assign(:messages, messages_page.entries)
     |> assign(:messages_cursor, messages_page.next_cursor)
     |> assign(:message_window_limit, max(length(messages_page.entries), @initial_message_window))
@@ -772,7 +785,16 @@ defmodule WhoNeedHelpWeb.RequestLive.Show do
               >
                 {gettext("Load earlier messages")}
               </button>
-              <p :if={@messages == []} class="py-6 text-center text-sm text-base-content/50">
+              <p
+                :if={@interaction_blocked}
+                class="py-6 text-center text-sm font-medium text-error"
+              >
+                {gettext("This interaction is blocked.")}
+              </p>
+              <p
+                :if={@messages == [] && !@interaction_blocked}
+                class="py-6 text-center text-sm text-base-content/50"
+              >
                 {gettext("No messages yet.")}
               </p>
               <div
@@ -796,6 +818,7 @@ defmodule WhoNeedHelpWeb.RequestLive.Show do
               </div>
             </div>
             <.form
+              :if={!@interaction_blocked}
               id="message-form"
               for={@message_form}
               phx-submit="send-message"

test/who_need_help_web/live/mutual_aid_live_test.exs

@@ -515,6 +515,31 @@ defmodule WhoNeedHelpWeb.MutualAidLiveTest do
     stop_live_view(helper_view)
   end
 
+  test "request chat clearly disables interaction when the other participant blocks the user", %{
+    conn: requester_conn,
+    scope: requester_scope
+  } do
+    category = Catalog.seed_defaults()
+    helper = user_fixture(display_name: "Blocking helper")
+
+    {:ok, request} = Help.create_request(requester_scope, request_attrs(category))
+    {:ok, assignment} = Help.accept_request(user_scope_fixture(helper), request.id)
+
+    {:ok, _message} =
+      Messaging.send_message(user_scope_fixture(helper), assignment, %{
+        "body" => "This message is hidden after blocking."
+      })
+
+    {:ok, _block} = Trust.block(user_scope_fixture(helper), requester_scope.user.id)
+
+    {:ok, view, html} = live(requester_conn, ~p"/requests/#{request.id}")
+
+    assert html =~ "This interaction is blocked."
+    refute html =~ "No messages yet."
+    refute html =~ "This message is hidden after blocking."
+    refute has_element?(view, "#message-form")
+  end
+
   test "terminal request updates stop Android foreground tracking", _context do
     category = Catalog.seed_defaults()
     requester = user_fixture(display_name: "Tracking requester")