#!/usr/bin/env bash
# build-image.sh — build the custom-gitea-runner Docker image locally
set -euo pipefail

IMAGE_NAME="${IMAGE_NAME:-custom-gitea-runner}"
VERSION="${VERSION:-dev}"
VCS_REF="$(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')"
BUILD_DATE="$(date -u +%Y-%m-%dT%H:%M:%SZ)"

echo "Building ${IMAGE_NAME}:${VERSION} ..."
echo "  VCS_REF    : ${VCS_REF}"
echo "  BUILD_DATE : ${BUILD_DATE}"

docker build \
    --build-arg "VERSION=${VERSION}" \
    --build-arg "VCS_REF=${VCS_REF}" \
    --build-arg "BUILD_DATE=${BUILD_DATE}" \
    --tag "${IMAGE_NAME}:${VERSION}" \
    --tag "${IMAGE_NAME}:latest" \
    --file docker/runner/Dockerfile \
    .

echo "Build complete: ${IMAGE_NAME}:${VERSION}"