# 1. Use the specific Python version matching your local environment
FROM python:3.10.16-slim

# 2. Set the working directory inside the container
WORKDIR /code

# 3. Copy requirements first (for better caching)
COPY ./requirements.txt /code/requirements.txt

# 4. Install dependencies
# We use --no-cache-dir to keep the image small
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# 5. Copy the rest of your application code
COPY . /code

# 6. CRITICAL: Give write permissions to the backend folder 
# This allows SQLite to create lock files and update the DB
RUN chmod -R 777 /code/backend

# 7. Start the app on port 7860 (Hugging Face default)
CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860"]