# ===== 阶段1: 构建前端 =====
FROM node:20-slim AS frontend-builder

WORKDIR /build
COPY web/frontend/package.json web/frontend/package-lock.json* ./
RUN npm ci || npm install
COPY web/frontend/ ./
RUN npm run build

# ===== 阶段2: Python 运行时 =====
FROM python:3.12-slim AS runtime

# 安装 OpenCV 系统依赖
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# 安装 uv（通过 pip，避免依赖 ghcr.io 国内网络问题）
RUN pip install uv

WORKDIR /app

# 先复制依赖文件，利用 Docker 缓存层
COPY pyproject.toml uv.lock* README.md alembic.ini ./
RUN uv venv /app/.venv && uv pip install -e .

# 复制项目代码
COPY core/ ./core/
COPY utils/ ./utils/
COPY web/backend/ ./web/backend/

# 复制前端构建产物
COPY --from=frontend-builder /build/dist ./web/frontend/dist

# 创建数据和日志目录
RUN mkdir -p /app/data /app/logs

# 环境变量
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
ENV PATH="/app/.venv/bin:$PATH"

EXPOSE 8000

# 健康检查
HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/api/health')" || exit 1

# 启动命令
CMD ["python", "-m", "uvicorn", "web.backend.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]