FROM python:3.10-slim

WORKDIR /app

# 安装 opencv 必需的最小依赖（修复所有 libxcb 错误）
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
RUN pip install --no-cache-dir huggingface_hub

COPY . .

# 启动（模型下载 + 运行服务）
CMD python -c "from huggingface_hub import snapshot_download;import os;snapshot_download(repo_id='William941008/air-quality-model',local_dir='./models',token=os.getenv('AirPollutionToken'))" && uvicorn main:app --host 0.0.0.0 --port 7860