[LW-12241] Update index.ts to cater for the cleardown of ledger state if not alr… (#3276)

* Update index.ts to cater for the cleardown of ledger state if not already flagged as done

Update index.ts to cater for the cleardown of ledger state if not already flagged as done

* Moved node-fs imports to resolve 'common' import for ipc

* Update source/main/index.ts

Co-authored-by: Szymon Masłowski <[email protected]>

* moved from console.log to logger.info + console.error to logger.error as suggested

---------

Co-authored-by: Szymon Masłowski <[email protected]>

Author: hegaleon

source/main/index.ts

@@ -1,5 +1,6 @@
 import os from 'os';
 import path from 'path';
+import * as fs from 'fs';
 import { app, dialog, BrowserWindow, screen, shell } from 'electron';
 import type { Event } from 'electron';
 import EventEmitter from 'events';
@@ -24,6 +25,7 @@ import {
   RTS_FLAGS,
   stateDirectoryPath,
 } from './config';
+
 import { setupCardanoNode } from './cardano/setup';
 import { CardanoNode } from './cardano/CardanoNode';
 import { safeExitWithCode } from './utils/safeExitWithCode';
@@ -133,8 +135,50 @@ const handleWindowClose = async (event: Event | null | undefined) => {
   await safeExit();
 };
 
+const clearLedger = async () => {
+  const flagFileShortName = 'has_upgraded_to_pv_10';
+  const chainLedgerDir = 'chain/ledger';
+
+  const flagFileLongName = path.join(
+    launcherConfig.stateDir,
+    flagFileShortName
+  );
+
+  // Check if the flag file exists
+  if (fs.existsSync(flagFileLongName)) {
+    logger.info(`${flagFileLongName} found. NoHskpg.`);
+  } else {
+    try {
+      const chainLedgerLongName = path.join(
+        launcherConfig.stateDir,
+        chainLedgerDir
+      );
+
+      const files = fs.readdirSync(chainLedgerLongName);
+
+      for (const file of files) {
+        // DelIterator
+        const filePath = path.join(chainLedgerLongName, file);
+        if (fs.lstatSync(filePath).isFile()) {
+          // ?it's a file
+          fs.unlinkSync(filePath);
+          logger.info(`HskpgDone: ${filePath}`);
+        }
+      }
+
+      // Create v10-upgraded completed marker
+      fs.writeFileSync(flagFileLongName, 'HskpgNwFlag');
+    } catch (err) {
+      logger.error(`Error removing files: ${err}`);
+    }
+  }
+};
+
 const onAppReady = async () => {
   setupLogging();
+
+  await clearLedger();
+
   await logUsedVersion(
     environment.version,
     path.join(pubLogsFolderPath, 'Daedalus-versions.json')