#!/bin/bash
# =============================================================================
# ngn-agent Docker Image Build Script
#
# D-04: Single-command build entry point at docker/build.sh.
# Builds the custom Hermes Docker image with platform engineering tools.
# D-05: Tag: ngn-agent:latest (local only, no registry push).
# =============================================================================
set -euo pipefail

IMAGE_NAME="ngn-agent"
IMAGE_TAG="latest"

# Resolve script location — ensures build context is the docker/ directory
# (not the repo root, preventing accidental build context leaks — T-09-02)
DOCKER_DIR="$(cd "$(dirname "$0")" && pwd)"

echo "==> Building ${IMAGE_NAME}:${IMAGE_TAG}..."

docker build \
    -t "${IMAGE_NAME}:${IMAGE_TAG}" \
    -f "${DOCKER_DIR}/Dockerfile" \
    "${DOCKER_DIR}"

echo "==> Build complete: ${IMAGE_NAME}:${IMAGE_TAG}"
docker images "${IMAGE_NAME}:${IMAGE_TAG}"