deploy frontend from the ec2 at the end of the pipeline

pipeline/06_frontend/deploy.sh

@@ -60,16 +60,25 @@ echo "Total bundles: $TOTAL_BUNDLES"
 echo "S3 bucket: $SITE_BUCKET"
 echo ""
 
-# Inject TOTAL_BUNDLES into index.html (in a temp copy)
+# Build into temp directory
 TMPDIR=$(mktemp -d)
 cp "$FRONTEND_DIR/index.html" "$TMPDIR/index.html"
 cp "$FRONTEND_DIR/site.js" "$TMPDIR/site.js"
 cp "$FRONTEND_DIR/bot.html" "$TMPDIR/bot.html"
 cp "$FRONTEND_DIR/about.html" "$TMPDIR/about.html"
 
+# Inject TOTAL_BUNDLES
 sed -i "s/const TOTAL_BUNDLES = [0-9]*/const TOTAL_BUNDLES = ${TOTAL_BUNDLES}/" "$TMPDIR/index.html"
 echo "Injected TOTAL_BUNDLES = $TOTAL_BUNDLES"
 
+# Minify JS (strip comments + whitespace, keep variable names)
+if command -v esbuild &>/dev/null; then
+    esbuild "$TMPDIR/site.js" --minify --outfile="$TMPDIR/site.js" --allow-overwrite
+    echo "Minified site.js"
+else
+    echo "Warning: esbuild not found, deploying unminified JS"
+fi
+
 # Upload
 echo "Uploading to s3://$SITE_BUCKET/..."
 aws s3 cp "$TMPDIR/index.html" "s3://$SITE_BUCKET/" --content-type "text/html"
@@ -80,6 +89,28 @@ echo "Uploaded 4 files"
 
 rm -rf "$TMPDIR"
 
+# Clean up stale bundles from previous runs
+echo "Cleaning stale bundles above $TOTAL_BUNDLES..."
+STALE=$(aws s3api list-objects-v2 --bucket "$SITE_BUCKET" --prefix "tabs/" --query "Contents[].Key" --output text \
+    | tr '\t' '\n' \
+    | while read -r key; do
+        num=$(echo "$key" | grep -oP '\d+' || true)
+        if [ -n "$num" ] && [ "$((10#$num))" -ge "$TOTAL_BUNDLES" ]; then
+            echo "$key"
+        fi
+    done)
+
+if [ -n "$STALE" ]; then
+    STALE_COUNT=$(echo "$STALE" | wc -l)
+    echo "Deleting $STALE_COUNT stale bundles..."
+    echo "$STALE" | while read -r key; do
+        aws s3 rm "s3://$SITE_BUCKET/$key" --quiet
+    done
+    echo "Deleted $STALE_COUNT stale bundles"
+else
+    echo "No stale bundles found"
+fi
+
 # Invalidate CloudFront
 if ! $SKIP_INVALIDATION; then
     if [ -z "$DIST_ID" ]; then