Add splits path getter for autosplitters

src/LiveSplit.AutoSplittingRuntime/ASR.cs

@@ -54,7 +54,8 @@ public Runtime(
         Action pauseGameTime,
         Action resumeGameTime,
         SetCustomVariableDelegate setCustomVariable,
-        LogDelegate log
+        LogDelegate log,
+        GetSplitsPathDelegate getSplitsPath
     ) : base(IntPtr.Zero)
     {
         IntPtr settingsMapPtr = settingsMap?.ptr ?? IntPtr.Zero;
@@ -75,7 +76,8 @@ LogDelegate log
             pauseGameTime,
             resumeGameTime,
             setCustomVariable,
-            log
+            log,
+            getSplitsPath
         );
         if (ptr == IntPtr.Zero)
         {
@@ -715,6 +717,8 @@ internal Widgets(IntPtr ptr) : base(ptr) { }
 public delegate void SetGameTimeDelegate(long gameTime);
 public delegate void SetCustomVariableDelegate(IntPtr namePtr, UIntPtr nameLen, IntPtr valuePtr, UIntPtr valueLen);
 public delegate void LogDelegate(IntPtr messagePtr, UIntPtr messageLen);
+[return: MarshalAs(UnmanagedType.LPUTF8Str)]
+public delegate string GetSplitsPathDelegate();
 
 public static class ASRNative
 {
@@ -734,7 +738,8 @@ public static extern IntPtr Runtime_new(
         Action pause_game_time,
         Action resume_game_time,
         SetCustomVariableDelegate set_custom_variable,
-        LogDelegate log
+        LogDelegate log,
+        GetSplitsPathDelegate getSplitsPath
     );
     [DllImport("asr_capi", CallingConvention = CallingConvention.Cdecl)]
     public static extern void Runtime_drop(IntPtr self);

src/LiveSplit.AutoSplittingRuntime/ComponentSettings.cs

@@ -39,6 +39,7 @@ public string ScriptPath
     };
 
     private readonly StateDelegate getState;
+    private readonly GetSplitsPathDelegate getSplitsPath;
     private readonly IndexDelegate getIndex;
     private readonly SegmentSplittedDelegate segmentSplitted;
     private readonly Action start;
@@ -71,6 +72,7 @@ public ComponentSettings(TimerModel model)
                 _ => 0,
             };
         };
+        getSplitsPath = () => model.CurrentState.Run?.FilePath ?? "";
         getIndex = () => model.CurrentState.CurrentSplitIndex;
         segmentSplitted = (idx) =>
         {
@@ -138,7 +140,8 @@ public void ReloadRuntime(SettingsMap settingsMap)
                     pauseGameTime,
                     resumeGameTime,
                     setCustomVariable,
-                    log
+                    log,
+                    getSplitsPath
                 );
             }
         }

src/asr-capi/src/lib.rs

@@ -60,6 +60,7 @@ pub struct CTimer {
     resume_game_time: unsafe extern "C" fn(),
     set_custom_variable: unsafe extern "C" fn(*const u8, usize, *const u8, usize),
     log: unsafe extern "C" fn(*const u8, usize),
+    get_splits_path: unsafe extern "C" fn() -> *const u8,
 }
 
 #[cfg(target_pointer_width = "64")]
@@ -141,6 +142,19 @@ impl Timer for CTimer {
     fn log_runtime(&mut self, message: fmt::Arguments<'_>, _: LogLevel) {
         log(self.log, message);
     }
+
+    fn splits_path(&self) -> Option<std::path::PathBuf> {
+        let ptr = unsafe { (self.get_splits_path)() };
+        if ptr.is_null() {
+            return None;
+        }
+        let s = unsafe { str(ptr) };
+        if s.is_empty() {
+            None
+        } else {
+            Some(std::path::PathBuf::from(s))
+        }
+    }
 }
 
 #[cfg(target_pointer_width = "64")]

src/asr-capi/src/runtime.rs

@@ -37,6 +37,7 @@ pub unsafe extern "C" fn Runtime_new(
     _resume_game_time: unsafe extern "C" fn(),
     _set_custom_variable: unsafe extern "C" fn(*const u8, usize, *const u8, usize),
     _log: unsafe extern "C" fn(*const u8, usize),
+    _get_splits_path: unsafe extern "C" fn() -> *const u8,
 ) -> Option<Box<Runtime>> {
     #[cfg(target_pointer_width = "64")]
     {
@@ -77,6 +78,7 @@ pub unsafe extern "C" fn Runtime_new(
                             resume_game_time: _resume_game_time,
                             set_custom_variable: _set_custom_variable,
                             log: _log,
+                            get_splits_path: _get_splits_path,
                         },
                         _settings_map.map(|settings_map| *settings_map),
                         None,