FROM python:3.10-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements file
COPY requirements.txt .

# Install PyTorch with CPU-specific index
RUN pip install --no-cache-dir torch==2.4.0 --index-url https://download.pytorch.org/whl/cpu

# Install remaining dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Create cache directory with write permissions
RUN mkdir -p /app/cache/hub && chmod -R 777 /app/cache

# Copy application code
COPY app.py .

# Set environment variables
ENV HF_HOME=/app/cache
ENV NUMBA_CACHE_DIR=/app/cache

# Expose port
EXPOSE 7860

# Run FastAPI with Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]