# ===========================================
# 第一阶段：构建前端
# ===========================================
FROM node:20-alpine AS frontend-builder

WORKDIR /app/frontend

# 安装pnpm
RUN npm install -g pnpm

# 复制前端依赖文件
COPY frontend/package.json frontend/pnpm-lock.yaml ./

# 安装依赖
RUN pnpm install --frozen-lockfile

# 复制源代码并构建
COPY frontend/ .
RUN pnpm build

# ===========================================
# 第二阶段：构建后端
# ===========================================
FROM python:3.11-slim AS backend-builder

WORKDIR /app

# 安装系统依赖
RUN apt-get update && apt-get install -y \
    gcc \
    && rm -rf /var/lib/apt/lists/*

# 复制并安装Python依赖
COPY backend/requirements.txt .
RUN pip install --no-cache-dir --upgrade pip \
    && pip install --no-cache-dir -r requirements.txt

# ===========================================
# 第三阶段：最终镜像
# ===========================================
FROM python:3.11-slim

# 安装nginx和必要的系统工具
RUN apt-get update && apt-get install -y \
    nginx \
    bash \
    curl \
    && rm -rf /var/lib/apt/lists/*

# 创建应用目录
WORKDIR /app

# 从backend-builder复制Python依赖（只复制site-packages，不要复制二进制文件）
COPY --from=backend-builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages

# 复制后端代码
COPY backend/ /app/

# 复制前端构建产物到nginx目录
COPY --from=frontend-builder /app/frontend/dist /usr/share/nginx/html

# 复制nginx配置
COPY nginx.conf /etc/nginx/nginx.conf

# 复制启动脚本
COPY entrypoint.sh /app/entrypoint.sh
RUN chmod +x /app/entrypoint.sh

# 创建必要的目录
RUN mkdir -p /var/cache/nginx /var/log/nginx /etc/nginx/conf.d /app/logs

# 暴露端口
EXPOSE 80

# 设置入口点
ENTRYPOINT ["/app/entrypoint.sh"]