# Use an official Python runtime as a parent image
FROM python:3.9-slim

# Set the working directory in the container
WORKDIR /app

# Create cache directories with proper permissions
RUN mkdir -p /tmp/transformers_cache /tmp/hf_home && \
    chmod 777 /tmp/transformers_cache /tmp/hf_home

# Set environment variables for transformers cache
ENV TRANSFORMERS_CACHE=/tmp/transformers_cache
ENV HF_HOME=/tmp/hf_home

# Copy the requirements file and install dependencies first to leverage caching
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy all of your project files from the repository into the container
COPY . .

# Tell Docker that the container listens on port 7860
# Hugging Face Spaces expects applications to run on this port
EXPOSE 7860

# --- CORRECTED COMMAND ---
# This correctly points to the 'app' variable inside the 'app/main.py' file
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]