# 多阶段构建 - 基础镜像
FROM python:3.12-slim as base

# 设置工作目录
WORKDIR /app

# 设置环境变量
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    TZ=Asia/Shanghai \
    PYTHONPATH=/app

# 安装系统依赖
# build-essential: 编译依赖
# curl: 网络工具
# libgl1: OpenCV 等库可能需要
# libglib2.0-0: GLib 库
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    curl \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# 复制依赖文件
COPY requirements.txt .

# 处理 Windows 特有依赖 (pywin32) 并安装依赖
RUN sed -i '/pywin32/d' requirements.txt && \
    pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# 开发环境镜像
FROM base as development

# 安装开发依赖
RUN pip install --no-cache-dir \
    pytest \
    pytest-asyncio \
    pytest-cov \
    hypothesis \
    httpx \
    black \
    flake8 \
    isort \
    mypy

# 复制项目代码
COPY . .

# 暴露端口
EXPOSE 8000

# 启动命令（开发模式，带热重载）
CMD ["uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]

# 生产环境镜像
FROM base as production

# 创建非 root 用户
RUN useradd -m -u 1000 appuser && \
    chown -R appuser:appuser /app

# 复制项目代码
COPY --chown=appuser:appuser . .

# 切换到非 root 用户
USER appuser

# 暴露端口
EXPOSE 8000

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# 启动命令（生产模式，多 worker）
CMD ["uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]