From af86d5acc960d4c09586a04f423206e73cc6288e Mon Sep 17 00:00:00 2001
From: eyza <kratas.tom@seznam.cz>
Date: Fri, 25 Oct 2024 20:06:44 +0200
Subject: [PATCH] When GSC file is replaced by another GSC file in multi-root
 workspace because of the same game path (e.g. maps\mp\gametypes\script), the
 code in text editor is shown as semi-transparent (unreachable code)

---
 src/GscFiles.ts                  | 27 ++++++++++++++++++++++++---
 src/GscSemanticTokensProvider.ts | 13 +++++++++++++
 2 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/src/GscFiles.ts b/src/GscFiles.ts
index 3e9472f..310cb70 100644
--- a/src/GscFiles.ts
+++ b/src/GscFiles.ts
@@ -427,6 +427,7 @@ export class GscFiles {
      * Get referenced file in specified file. It tries to find the file in all possible locations where it can be found (workspace folder and included workspace folders).
      * @param gscFile GSC file where the reference is located.
      * @param referencedFilePath Path in GSC file format (e.g. scripts\scriptName)
+     * @param includeReversedReferences If true, it also checks if the file is replaced by another file in another workspace folder.
      * @returns The reference status and the parsed file data if found
      */
     public static getReferencedFileForFile(gscFile: GscFile, referencedFilePath: string, includeReversedReferences: boolean = false): GscFileAndReferenceState {
@@ -473,12 +474,32 @@ export class GscFiles {
      * Converts the file URI into game path considering game root folder (eg. "c:/mod/src/maps/mp/script.gsc" -> "maps\mp\script.gsc")
      */
     public static getGamePathFromGscFile(gscFile: GscFile): string {
+        
         if (gscFile.workspaceFolder && gscFile.config.rootFolder) {
-            const path = gscFile.uri.fsPath.replace(gscFile.config.rootFolder.uri.fsPath, "").replace(/\//g, '\\');
-            return path;
+            var path = gscFile.uri.fsPath.replace(gscFile.config.rootFolder.uri.fsPath, "").replace(/\//g, '\\');
         } else {
-            return vscode.workspace.asRelativePath(gscFile.uri).replace(/\//g, '\\');
+            var path = vscode.workspace.asRelativePath(gscFile.uri).replace(/\//g, '\\');
+        }
+
+        if (path.startsWith("\\")) {
+            path = path.substring(1);
+        }
+        path = path.replace(/\.gsc/i, "");
+
+        return path;
+    }
+
+    /**
+     * Check if the GSC file is replaced by another file in another workspace folder (reverse reference).
+     */
+    public static isFileReplacedByAnotherFile(gscFile: GscFile): boolean {
+
+        const referencedFiles = this.getReferencedFileForFile(gscFile, gscFile.gamePath, true);
+
+        if (referencedFiles.gscFile !== gscFile) {
+            return true;
         }
+        return false;
     }
 
 
diff --git a/src/GscSemanticTokensProvider.ts b/src/GscSemanticTokensProvider.ts
index a67a197..ea8f8a9 100644
--- a/src/GscSemanticTokensProvider.ts
+++ b/src/GscSemanticTokensProvider.ts
@@ -120,6 +120,19 @@ export class GscSemanticTokensProvider implements vscode.DocumentSemanticTokensP
         }
 
 
+        // Check if file is replaced via game path
+        
+        if (GscFiles.isFileReplacedByAnotherFile(gscFile)) {
+            // Get text editor out of the document
+            const editor = vscode.window.visibleTextEditors.find(e => e.document.uri.toString() === document.uri.toString());
+            if (editor !== undefined) {
+                // Get full range of the document
+                const documentRange = new vscode.Range(document.positionAt(0), document.positionAt(document.getText().length));
+                editor?.setDecorations(vscode.window.createTextEditorDecorationType({opacity: '0.5'}), [documentRange]);
+            }
+        }
+
+
         walkGroupItems(gscFile.data.root, gscFile.data.root.items, (parentGroup, group) => {
 
             /*