From 3afdc0de9e375aed686ae7461d5bc2b830d6717f Mon Sep 17 00:00:00 2001
From: David Montero Crespo <davidmonterocrespo24@gmail.com>
Date: Mon, 9 Mar 2026 13:32:04 -0300
Subject: [PATCH] feat: add library list parser to handle libraries.txt content

---
 frontend/src/utils/wokwiZip.ts | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/frontend/src/utils/wokwiZip.ts b/frontend/src/utils/wokwiZip.ts
index 59efc48..78f70c5 100644
--- a/frontend/src/utils/wokwiZip.ts
+++ b/frontend/src/utils/wokwiZip.ts
@@ -132,6 +132,24 @@ function metadataIdToWokwiType(metadataId: string): string {
   return `wokwi-${metadataId}`;
 }
 
+// ── Library list parser ───────────────────────────────────────────────────────
+
+/**
+ * Parse the contents of a Wokwi libraries.txt file.
+ * - Strips blank lines and # comments
+ * - Excludes Wokwi-hosted entries in the form  name@wokwi:hash
+ *   (they have no arduino-cli installable equivalent)
+ */
+export function parseLibrariesTxt(content: string): string[] {
+  const libs: string[] = [];
+  for (const raw of content.split('\n')) {
+    const line = raw.trim();
+    if (!line || line.startsWith('#') || line.includes('@wokwi:')) continue;
+    libs.push(line);
+  }
+  return libs;
+}
+
 // ── Export ────────────────────────────────────────────────────────────────────
 
 export async function exportToWokwiZip(
@@ -305,16 +323,11 @@ export async function importFromWokwiZip(file: File): Promise<ImportResult> {
     return a.name.localeCompare(b.name);
   });
 
-  // Parse libraries.txt — skip blank lines, comments (#), and Wokwi-only entries (name@wokwi:hash)
+  // Parse libraries.txt
   const libraries: string[] = [];
   const libEntry = zip.file('libraries.txt');
   if (libEntry) {
-    const libText = await libEntry.async('string');
-    for (const raw of libText.split('\n')) {
-      const line = raw.trim();
-      if (!line || line.startsWith('#') || line.includes('@wokwi:')) continue;
-      libraries.push(line);
-    }
+    libraries.push(...parseLibrariesTxt(await libEntry.async('string')));
   }
 
   return { boardType, boardPosition, components, wires, files, libraries };