FROM python:3.10-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for better caching
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create necessary directories
RUN mkdir -p static/uploads

# Expose port
EXPOSE 7860

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

# Production server (Spaces sets PORT, usually 7860)
CMD ["/bin/sh", "-c", "python scripts/prestart_download.py && exec gunicorn --bind 0.0.0.0:${PORT:-7860} --workers 1 --threads 2 --timeout 180 --graceful-timeout 60 main:app"]