FROM python:3.10-slim

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PORT=7860

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    imagemagick \
    curl \
    git \
    build-essential \
    fonts-wqy-zenhei \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Fix ImageMagick policy to allow MoviePy to render subtitles and text clips
RUN sed -i 's/rights="none" pattern="@\*"/rights="read|write" pattern="@*"/' /etc/ImageMagick-6/policy.xml || true

# Set up working directory
WORKDIR /app

# Copy requirements and install
COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application files (including pre-built static assets in resource/public)
COPY . /app

# Create necessary directories and ensure correct permissions
RUN mkdir -p /app/storage/tasks /app/storage/cache_videos /app/resource/public /app/resource/songs /app/resource/fonts && \
    ln -s /usr/share/fonts/truetype/wqy/wqy-zenhei.ttc /app/resource/fonts/STHeitiMedium.ttc && \
    ln -s /usr/share/fonts/truetype/wqy/wqy-zenhei.ttc /app/resource/fonts/STHeitiLight.ttc && \
    ln -s /usr/share/fonts/truetype/wqy/wqy-zenhei.ttc /app/resource/fonts/MicrosoftYaHeiNormal.ttc && \
    ln -s /usr/share/fonts/truetype/wqy/wqy-zenhei.ttc /app/resource/fonts/MicrosoftYaHeiBold.ttc

# Hugging Face Spaces require running as a non-root user for security and file ownership
RUN useradd -m -u 1000 user && \
    chown -R user:user /app

USER user

# Expose port
EXPOSE 7860

# Command to run the application
CMD ["python", "main.py"]