#!/usr/bin/env bash
# 在己方环境构建应用镜像（不向甲方交付源码）
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT"

if ! docker info >/dev/null 2>&1; then
  echo "错误: 无法连接 Docker 守护进程。" >&2
  echo "  macOS: 请先打开 Docker Desktop，等待菜单栏鲸鱼图标就绪后再执行。" >&2
  echo "  Linux: sudo systemctl start docker" >&2
  exit 1
fi

export DOCKER_BUILDKIT=1

VERSION="${1:-latest}"
PLATFORM="${DOCKER_PLATFORM:-linux/amd64}"

BACKEND_IMAGE="zkxw-backend:${VERSION}"
WEB_IMAGE="zkxw-web:${VERSION}"

PIP_INDEX_URL="${PIP_INDEX_URL:-https://mirrors.aliyun.com/pypi/simple/}"
PIP_TRUSTED_HOST="${PIP_TRUSTED_HOST:-mirrors.aliyun.com}"
NPM_REGISTRY="${NPM_REGISTRY:-https://registry.npmmirror.com}"

BUILD_ARGS=(
  --progress=plain
  --platform "${PLATFORM}"
)

if [[ "$(uname -s)" == "Darwin" && "$(uname -m)" == "arm64" && "${PLATFORM}" == "linux/amd64" ]]; then
  echo ""
  echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
  echo "  提示: 当前为 Apple Silicon 交叉构建 linux/amd64"
  echo "  后端 pip 约 15～40 分钟、前端 pnpm 约 10～20 分钟"
  echo "  日志可能长时间停在某一步，请勿 Ctrl+C，除非确认已失败"
  echo "  更快方式: 在 Linux x86 云主机上执行同一打包脚本"
  echo "  前端 vite build 建议 Docker Desktop 内存 ≥ 4GB"
  echo "  （Settings → Resources → Memory；仍 OOM 可加大 NODE_MAX_OLD_SPACE_SIZE）"
  echo "  pnpm install 出现 ETIMEDOUT 时会自动重试，336/340 后仍可能再等数分钟"
  echo "  请勿 Ctrl+C；更快方式见 deploy/docker/README.md §11 发版方打包"
  echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
  echo ""
fi

echo "==> 构建后端镜像: ${BACKEND_IMAGE} (${PLATFORM})"
docker build "${BUILD_ARGS[@]}" \
  --build-arg "PIP_INDEX_URL=${PIP_INDEX_URL}" \
  --build-arg "PIP_TRUSTED_HOST=${PIP_TRUSTED_HOST}" \
  -t "${BACKEND_IMAGE}" -f backend/Dockerfile backend/

NODE_IMAGE="${NODE_IMAGE:-docker.m.daocloud.io/library/node:20-alpine}"
NGINX_IMAGE="${NGINX_IMAGE:-docker.m.daocloud.io/library/nginx:1.27-alpine}"
NODE_MAX_OLD_SPACE_SIZE="${NODE_MAX_OLD_SPACE_SIZE:-4096}"

echo "==> 构建前端镜像: ${WEB_IMAGE} (${PLATFORM})"
echo "    基础镜像: ${NODE_IMAGE} / ${NGINX_IMAGE}"
echo "    npm/pnpm 镜像: ${NPM_REGISTRY}"
echo "    Node 堆上限: ${NODE_MAX_OLD_SPACE_SIZE}MB"
if [[ "${NPM_REGISTRY}" == *"registry.npmjs.org"* ]]; then
  echo "    警告: 国内网络访问 registry.npmjs.org 常 ETIMEDOUT，建议去掉 NPM_REGISTRY 用默认 npmmirror"
fi
docker build "${BUILD_ARGS[@]}" \
  --build-arg "NODE_IMAGE=${NODE_IMAGE}" \
  --build-arg "NGINX_IMAGE=${NGINX_IMAGE}" \
  --build-arg "NPM_REGISTRY=${NPM_REGISTRY}" \
  --build-arg "NODE_MAX_OLD_SPACE_SIZE=${NODE_MAX_OLD_SPACE_SIZE}" \
  -t "${WEB_IMAGE}" -f deploy/docker/web-admin/Dockerfile .

if [[ "${VERSION}" != "latest" ]]; then
  docker tag "${BACKEND_IMAGE}" zkxw-backend:latest
  docker tag "${WEB_IMAGE}" zkxw-web:latest
  echo "==> 已同步标签 zkxw-backend:latest / zkxw-web:latest"
fi

echo ""
echo "完成。镜像："
docker images --format '  {{.Repository}}:{{.Tag}}\t{{.Size}}' | grep -E '^  zkxw-(backend|web):' || true