refactor: unify book cache clearing for epub, txt, and xtc files (#1875)

src/network/CrossPointWebServer.cpp

@@ -1,7 +1,6 @@
 #include "CrossPointWebServer.h"
 
 #include <ArduinoJson.h>
-#include <Epub.h>
 #include <FsHelpers.h>
 #include <HalGPIO.h>
 #include <HalStorage.h>
@@ -23,6 +22,7 @@
 #include "html/HomePageHtml.generated.h"
 #include "html/SettingsPageHtml.generated.h"
 #include "html/js/jszip_minJs.generated.h"
+#include "util/BookCacheUtils.h"
 
 namespace {
 // Folders/files to hide from the web interface file browser
@@ -48,15 +48,6 @@ String wsLastCompleteName;
 size_t wsLastCompleteSize = 0;
 unsigned long wsLastCompleteAt = 0;
 
-// Helper function to clear epub cache after upload
-void clearEpubCacheIfNeeded(const String& filePath) {
-  // Only clear cache for .epub files
-  if (FsHelpers::hasEpubExtension(filePath)) {
-    Epub(filePath.c_str(), "/.crosspoint").clearCache();
-    LOG_DBG("WEB", "Cleared epub cache for: %s", filePath.c_str());
-  }
-}
-
 String normalizeWebPath(const String& inputPath) {
   if (inputPath.isEmpty() || inputPath == "/") {
     return "/";
@@ -732,7 +723,7 @@ void CrossPointWebServer::handleUpload(UploadState& state) const {
         String filePath = state.path;
         if (!filePath.endsWith("/")) filePath += "/";
         filePath += state.fileName;
-        clearEpubCacheIfNeeded(filePath);
+        clearBookCache(filePath.c_str());
       }
     }
   } else if (upload.status == UPLOAD_FILE_ABORTED) {
@@ -878,7 +869,7 @@ void CrossPointWebServer::handleRename() const {
     return;
   }
 
-  clearEpubCacheIfNeeded(itemPath);
+  clearBookCache(itemPath.c_str());
   const bool success = file.rename(newPath.c_str());
   file.close();
 
@@ -971,7 +962,7 @@ void CrossPointWebServer::handleMove() const {
     return;
   }
 
-  clearEpubCacheIfNeeded(itemPath);
+  clearBookCache(itemPath.c_str());
   const bool success = file.rename(newPath.c_str());
   file.close();
 
@@ -1090,7 +1081,7 @@ void CrossPointWebServer::handleDelete() const {
       // It's a file (or couldn't open as dir) — remove file
       if (f) f.close();
       success = Storage.remove(itemPath.c_str());
-      clearEpubCacheIfNeeded(itemPath);
+      clearBookCache(itemPath.c_str());
     }
 
     if (!success) {
@@ -1636,7 +1627,7 @@ void CrossPointWebServer::onWebSocketEvent(uint8_t num, WStype_t type, uint8_t*
             wsLastCompleteSize = 0;
             wsLastCompleteAt = millis();
             LOG_DBG("WS", "Zero-byte upload complete: %s", filePath.c_str());
-            clearEpubCacheIfNeeded(filePath);
+            clearBookCache(filePath.c_str());
             wsServer->sendTXT(num, "DONE");
             wsLastProgressSent = 0;
             break;
@@ -1705,7 +1696,7 @@ void CrossPointWebServer::onWebSocketEvent(uint8_t num, WStype_t type, uint8_t*
         String filePath = wsUploadPath;
         if (!filePath.endsWith("/")) filePath += "/";
         filePath += wsUploadFileName;
-        clearEpubCacheIfNeeded(filePath);
+        clearBookCache(filePath.c_str());
 
         wsServer->sendTXT(num, "DONE");
         wsLastProgressSent = 0;