Centralize legacy recording bridge

src/app_core/document_recording.h

@@ -1,7 +1,10 @@
 #pragma once
 
+#include "foundation/result.h"
+
 #include <cstddef>
 #include <limits>
+#include <string_view>
 
 namespace pp::app {
 
@@ -26,6 +29,20 @@ struct RecordingExportPlan {
     int progress_total = 0;
 };
 
+class RecordingServices {
+public:
+    virtual ~RecordingServices() = default;
+
+    virtual void start_thread() = 0;
+    virtual void stop_thread() = 0;
+    virtual void delete_recorded_files() = 0;
+    virtual void set_frame_count(int frame_count) = 0;
+    virtual void update_frame_label() = 0;
+    virtual void begin_export(int progress_total) = 0;
+    virtual void write_mp4(std::string_view path) = 0;
+    virtual void end_export() = 0;
+};
+
 [[nodiscard]] constexpr RecordingStartAction plan_recording_start(bool is_running) noexcept
 {
     return is_running
@@ -60,4 +77,60 @@ struct RecordingExportPlan {
     };
 }
 
+[[nodiscard]] inline pp::foundation::Status execute_recording_start_action(
+    RecordingStartAction action,
+    RecordingServices& services)
+{
+    switch (action) {
+    case RecordingStartAction::start_thread:
+        services.start_thread();
+        return pp::foundation::Status::success();
+    case RecordingStartAction::no_op_already_running:
+        return pp::foundation::Status::success();
+    }
+
+    return pp::foundation::Status::invalid_argument("unknown recording start action");
+}
+
+[[nodiscard]] inline pp::foundation::Status execute_recording_stop_action(
+    RecordingStopAction action,
+    RecordingServices& services)
+{
+    switch (action) {
+    case RecordingStopAction::stop_thread:
+        services.stop_thread();
+        return pp::foundation::Status::success();
+    case RecordingStopAction::no_op_not_running:
+        return pp::foundation::Status::success();
+    }
+
+    return pp::foundation::Status::invalid_argument("unknown recording stop action");
+}
+
+[[nodiscard]] inline pp::foundation::Status execute_recording_clear_plan(
+    const RecordingClearPlan& plan,
+    RecordingServices& services)
+{
+    if (plan.stop_running_recording) {
+        services.stop_thread();
+    }
+    if (plan.delete_recorded_files) {
+        services.delete_recorded_files();
+    }
+    services.set_frame_count(plan.frame_count_after_clear);
+    services.update_frame_label();
+    return pp::foundation::Status::success();
+}
+
+[[nodiscard]] inline pp::foundation::Status execute_recording_export_plan(
+    const RecordingExportPlan& plan,
+    RecordingServices& services,
+    std::string_view path)
+{
+    services.begin_export(plan.progress_total);
+    services.write_mp4(path);
+    services.end_export();
+    return pp::foundation::Status::success();
+}
+
 }