#!/bin/bash
# Export the XRd control-plane Docker image for CML 2.9 import.
#
# Usage:
#   ./cml/build-xrd-image.sh
#
# The XRd image already exists locally (ios-xr/xrd-control-plane:25.1.1).
# This script just exports it to a .tar file for CML upload.

set -e

IMAGE="ios-xr/xrd-control-plane:25.1.1"
OUTPUT="/tmp/xrd-control-plane.tar"

echo "=== Verifying XRd image exists ==="
if ! docker image inspect "$IMAGE" >/dev/null 2>&1; then
    echo "ERROR: Image $IMAGE not found locally."
    echo "Check with: docker images | grep xrd"
    exit 1
fi

echo "  Image: $IMAGE"
SIZE=$(docker image inspect "$IMAGE" --format='{{.Size}}' | numfmt --to=iec 2>/dev/null || echo "unknown")
echo "  Size: $SIZE"

echo ""
echo "=== Exporting image to $OUTPUT ==="
echo "  (This may take a minute for ~1.3GB image...)"
docker save -o "$OUTPUT" "$IMAGE"

echo ""
echo "=== Export complete ==="
TAR_SIZE=$(du -h "$OUTPUT" | cut -f1)
echo "  File: $OUTPUT ($TAR_SIZE)"

SHA=$(sha256sum "$OUTPUT" | awk '{print $1}')
echo "  SHA256: $SHA"

echo ""
echo "=== Next steps ==="
echo "1. Update cml/xrd-image-definition.yaml with:"
echo "   sha256: $SHA"
echo ""
echo "2. Upload to CML:"
echo "   a. Tools > Node and Image Definitions > Import"
echo "      Upload: cml/xrd-node-definition.yaml"
echo "   b. Tools > Node and Image Definitions > Import"
echo "      Upload: cml/xrd-image-definition.yaml"
echo "   c. Tools > Node and Image Definitions > Image Definitions > Manage Image Uploads"
echo "      Upload: $OUTPUT"
echo "      (For large files, consider SCP to CML server instead)"
echo ""
echo "3. In your CML lab topology:"
echo "   a. Drag 'XRd Control-Plane (IOS-XR)' from the node palette"
echo "   b. Draw links to CORE-01 (→Gi0/0/0/0) and CORE-02 (→Gi0/0/0/1)"
echo "   c. Edit xrd-startup.cfg if needed (IPs, BMP target, etc.)"
echo "   d. Start the node (allow ~3-5 min for XRd boot)"
echo ""
echo "4. After boot, verify via XRd console:"
echo "   show isis adjacency"
echo "   show bgp summary"
echo "   show bmp server 1"