# MiroFish Backend Dockerfile
# Multi-stage build for smaller image size

# ============= Build Stage =============
FROM python:3.11-slim AS builder

WORKDIR /app

# 安装构建依赖
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# 复制依赖文件
COPY requirements.txt .

# 创建虚拟环境并安装依赖
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# ============= Production Stage =============
FROM python:3.11-slim

WORKDIR /app

# 安装运行时依赖
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    && rm -rf /var/lib/apt/lists/*

# 从 builder 复制虚拟环境
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# 复制应用代码
COPY app/ ./app/
COPY scripts/ ./scripts/
COPY run.py .

# 创建上传目录
RUN mkdir -p uploads/simulations uploads/reports

# 设置环境变量
ENV PYTHONUNBUFFERED=1
ENV FLASK_HOST=0.0.0.0
ENV FLASK_PORT=5001

# 暴露端口
EXPOSE 5001

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:5001/health || exit 1

# 启动命令
CMD ["python", "run.py"]