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#!/bin/bash
set -e

cd "$(dirname "$0")"

ALL_STAGES="base"
STAGES="${1:-$ALL_STAGES}"
PREFIX="claude-vm-archlinux"
TMPDIR=$(mktemp -d)
trap "rm -rf $TMPDIR" EXIT

build_docker() {
    local stage=$1
    local name="${PREFIX}-${stage}"
    echo "Building Docker image: ${name}..."
    docker build --target "$stage" -t "$name" .
}

export_to_incus() {
    local stage=$1
    local name="${PREFIX}-${stage}"
    echo "Exporting to incus: ${name}..."

    # Create container and export rootfs
    local cid=$(docker create "$name")
    docker export "$cid" > "$TMPDIR/rootfs.tar"
    docker rm "$cid" > /dev/null

    # Create metadata
    cat > "$TMPDIR/metadata.yaml" << EOF
architecture: x86_64
creation_date: $(date +%s)
properties:
  description: ${name}
EOF
    tar -C "$TMPDIR" -cf "$TMPDIR/metadata.tar" metadata.yaml

    # Import into incus
    incus image delete "$name" 2>/dev/null || true
    incus image import "$TMPDIR/metadata.tar" "$TMPDIR/rootfs.tar" --alias "$name"

    rm -f "$TMPDIR/rootfs.tar" "$TMPDIR/metadata.yaml" "$TMPDIR/metadata.tar"
}

# Build Docker images
for stage in $STAGES; do
    build_docker "$stage"
done

echo ""
docker images | grep "$PREFIX"

# Export to incus
echo ""
for stage in $STAGES; do
    export_to_incus "$stage"
done

echo ""
echo "Incus images:"
incus image list | grep "$PREFIX"