Plan cloud bulk upload progress in app core

src/app_core/document_cloud.h

@@ -1,5 +1,7 @@
 #pragma once
 
+#include <cstddef>
+#include <limits>
 #include <string_view>
 
 namespace pp::app {
@@ -25,6 +27,12 @@ struct CloudUploadPlan {
     bool save_before_upload = false;
 };
 
+struct CloudBulkUploadPlan {
+    std::size_t file_count = 0;
+    int progress_total = 0;
+    bool show_progress = false;
+};
+
 [[nodiscard]] constexpr CloudUploadPlan plan_cloud_upload(
     bool has_canvas,
     bool is_new_document,
@@ -56,4 +64,16 @@ struct CloudUploadPlan {
         : CloudDownloadSelectionAction::start_download;
 }
 
+[[nodiscard]] constexpr CloudBulkUploadPlan plan_cloud_bulk_upload(
+    std::size_t file_count,
+    bool progress_ui_available) noexcept
+{
+    const auto max_progress_total = static_cast<std::size_t>(std::numeric_limits<int>::max());
+    return {
+        file_count,
+        file_count > max_progress_total ? std::numeric_limits<int>::max() : static_cast<int>(file_count),
+        progress_ui_available,
+    };
+}
+
 }