# Use an official Python runtime as the base image
FROM python:3.8-slim

# Prevent Python from writing .pyc files and buffering stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set the working directory in the container
WORKDIR /app

# Create multiple cache directories and set proper permissions
RUN mkdir -p /app/cache && \
    mkdir -p /tmp/cache && \
    mkdir -p /.cache && \
    chmod -R 777 /app/cache && \
    chmod -R 777 /tmp/cache && \
    chmod -R 777 /.cache

# Set environment variables for Hugging Face cache
ENV TRANSFORMERS_CACHE=/app/cache
ENV HF_HOME=/app/cache
ENV HUGGINGFACE_HUB_CACHE=/app/cache

# Copy over the requirements file first (for better Docker layer caching)
COPY requirements.txt /app/requirements.txt

# Install the Python dependencies
RUN pip install --upgrade pip && \
    pip install --no-cache-dir -r /app/requirements.txt

# Copy the rest of the application code
COPY . /app

# Expose the port that the app runs on
EXPOSE 7860

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