#!/usr/bin/env bash
set -euo pipefail

# ============================================
# 多架构构建 & 推送脚本
# 用法:
#   DOCKER_USER=yourname ./buildx-push.sh
#   DOCKER_USER=yourname VERSION=v1.0.0 ./buildx-push.sh
# ============================================

DOCKER_USER="${DOCKER_USER:-DOCKER_USER}"
VERSION="${VERSION:-$(git describe --tags --always 2>/dev/null || echo latest)}"
PLATFORMS="linux/amd64,linux/arm64"

# 确保 buildx 可用
if ! docker buildx version &>/dev/null; then
  echo "❌ docker buildx 不可用，请安装或升级 Docker"
  exit 1
fi

# 创建/复用 multiarch builder
if ! docker buildx inspect multiarch &>/dev/null 2>&1; then
  echo "🔧 创建 multiarch builder..."
  docker buildx create --name multiarch --driver docker-container --use
else
  docker buildx use multiarch
fi
docker buildx inspect --bootstrap

echo ""
echo "========================================"
echo "🚀 构建 backend  (${PLATFORMS})"
echo "   tag: ${DOCKER_USER}/meoo-backend:${VERSION}"
echo "========================================"
docker buildx build \
  --platform "${PLATFORMS}" \
  -t "${DOCKER_USER}/meoo-backend:${VERSION}" \
  -t "${DOCKER_USER}/meoo-backend:latest" \
  --push \
  ./backend

echo ""
echo "========================================"
echo "🚀 构建 frontend (${PLATFORMS})"
echo "   tag: ${DOCKER_USER}/meoo-frontend:${VERSION}"
echo "========================================"
docker buildx build \
  --platform "${PLATFORMS}" \
  -t "${DOCKER_USER}/meoo-frontend:${VERSION}" \
  -t "${DOCKER_USER}/meoo-frontend:latest" \
  --push \
  .

echo ""
echo "✅ 完成！"
echo "  backend:  ${DOCKER_USER}/meoo-backend:${VERSION}"
echo "  frontend: ${DOCKER_USER}/meoo-frontend:${VERSION}"