import sys

path = "/home/slin/enduro-trails/prototype/static/app.js"
with open(path, 'r') as f:
    content = f.read()

# Replace the style.load approach with idle event which reliably fires
old = """      map.setStyle(styleUrl);
      // Restore position after style loads
      map.once('style.load', () => {
        map.jumpTo({ center, zoom, bearing, pitch });
        setTimeout(() => rebuildMapOverlays(), 100);
      });"""

new = """      map.setStyle(styleUrl);
      // Restore position and overlays after style loads
      map.once('idle', () => {
        map.jumpTo({ center, zoom, bearing, pitch });
        rebuildMapOverlays();
      });"""

if old not in content:
    print("ERROR: marker not found")
    sys.exit(1)

content = content.replace(old, new)

with open(path, 'w') as f:
    f.write(content)

print("OK - switchMapStyle uses idle event")