# ===============================
# 极致最小化分步构建 Node 18 + Playwright
# ===============================

# -------------------------------
# Stage 1: 构建层（安装依赖、Chromium）
# -------------------------------
FROM node:18-slim AS builder

WORKDIR /app

# 复制 package.json / package-lock.json
COPY package*.json ./

# 安装生产依赖（包含 Playwright）
RUN npm install --omit=dev && npm cache clean --force

# 复制自定义中文字体并刷新缓存
COPY ./fonts/* /usr/share/fonts/
RUN apt update && \
    apt install -y --no-install-recommends fontconfig && \
    fc-cache -fv && \
    rm -rf /var/lib/apt/lists/*

# 安装 Playwright Chromium headless
RUN npx playwright install chromium --only-shell

# 复制应用代码
COPY server.js ./

# -------------------------------
# Stage 2: 运行层（最终镜像）
# -------------------------------
FROM node:18-slim AS runtime

WORKDIR /app

# 安装依赖，其中lib开头的，是 playwright 需要的依赖。不同版本可能不一样
RUN apt update && \
    apt install -y --no-install-recommends  \
    fontconfig \
    libglib2.0-0 \
    libnspr4 \
    libnss3 \
    libdbus-1-3 \
    libatk1.0-0 \
    libatk-bridge2.0-0 \
    libatspi2.0-0 \
    libx11-6 \
    libxcomposite1 \
    libxdamage1 \
    libxext6 \
    libxfixes3 \
    libxrandr2 \
    libgbm1 \
    libxcb1 \
    libxkbcommon0 \
    libasound2 && \
    rm -rf /var/lib/apt/lists/*

# 复制字体
COPY --from=builder /usr/share/fonts/ /usr/share/fonts/
RUN fc-cache -fv

# 复制 package.json 和 node_modules（包含 Playwright 及依赖）
COPY --from=builder /app/package.json /app/package.json
COPY --from=builder /app/node_modules /app/node_modules

# 复制应用代码
COPY --from=builder /app/server.js ./

# 复制 Playwright Chromium 缓存
COPY --from=builder /root/.cache/ms-playwright /root/.cache/ms-playwright

# 暴露端口
EXPOSE 3000

# 启动应用
CMD ["npm", "start"]