# =============================================================================
# Mining Admin Web - Dockerfile (Next.js)
# =============================================================================

# 阶段1: 依赖安装
FROM node:20-alpine AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# 复制依赖文件
COPY package.json package-lock.json ./

# 安装依赖
RUN npm ci

# 阶段2: 构建
FROM node:20-alpine AS builder
WORKDIR /app

# 复制依赖
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# 设置环境变量
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production

# 构建应用
RUN npm run build

# 阶段3: 生产运行
FROM node:20-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV TZ=Asia/Shanghai

# 安装 curl 用于健康检查
RUN apk add --no-cache curl tzdata

# 创建非 root 用户
RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 nextjs

# 复制构建产物
COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# 设置用户
USER nextjs

# 暴露端口
EXPOSE 3100

ENV PORT=3100
ENV HOSTNAME="0.0.0.0"

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
    CMD curl -f http://localhost:3100/ || exit 1

# 启动应用
CMD ["node", "server.js"]