# 修正版 Dockerfile - 可在 Hugging Face Spaces 成功构建
FROM python:3.11-slim

# 安装系统依赖
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        build-essential \
        gcc \
        git \
        ca-certificates \
        curl \
        unzip \
        libjpeg-dev \
        zlib1g-dev \
        libpng-dev \
        libfreetype6-dev \
        liblcms2-dev \
        libwebp-dev \
        tesseract-ocr \
        tesseract-ocr-chi-sim \
        libtesseract-dev \
        libleptonica-dev \
        poppler-utils \
    && rm -rf /var/lib/apt/lists/*

# 工作目录
WORKDIR /app

# 升级 pip 并安装 wheel
RUN python -m pip install --upgrade pip setuptools wheel

# 安装 Python 依赖
COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir -r /app/requirements.txt

# 拷贝代码
COPY . /app

# 创建必要目录
RUN mkdir -p /app/storage /app/data

# 暴露端口（Hugging Face Spaces 默认 7860）
EXPOSE 7860

# 启动命令
CMD ["python", "app.py"]