# Stage 1: 依赖安装 + 构建
FROM node:20-alpine AS builder
WORKDIR /app

# 先装依赖（缓存最大化）
COPY package.json pnpm-lock.yaml ./
RUN corepack enable && pnpm install --frozen-lockfile

# Prisma 客户端生成
COPY prisma/ ./prisma/
RUN npx prisma generate

# 复制源码并构建
COPY . .
RUN npm run build

# Stage 2: 最小运行时镜像
FROM node:20-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Standalone output 包含所有必要运行时文件
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/public ./public
COPY --from=builder /app/prisma ./prisma
COPY --from=builder /app/node_modules/@prisma ./node_modules/@prisma
COPY --from=builder /app/node_modules/prisma ./node_modules/prisma

EXPOSE 3000

CMD ["node", "server.js"]