# Use official Python slim image
FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install system dependencies (for transformers, torch, sqlite)
RUN apt update && apt install -y \
    build-essential \
    curl \
    git \
    sqlite3 \
    && rm -rf /var/lib/apt/lists/*

# Create /data directory and set permissions
RUN mkdir -p /data && \
    chown -R 1000:1000 /data && \
    chmod -R 755 /data

# Copy requirements and source code
COPY requirements.txt ./
COPY src/ ./src/

# If chats.db exists in src/, copy it to /data (optional)
RUN [ -f src/chats.db ] && cp src/chats.db /data/chats.db || true

# Upgrade pip and install Python dependencies
RUN pip install --upgrade pip
RUN pip install -r requirements.txt

# Expose Streamlit and FastAPI ports
EXPOSE 8501
EXPOSE 8000

# Huggingface cache
ENV HF_HOME=/tmp/huggingface_cache

# Healthcheck for Streamlit
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

# Run the Streamlit app
ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]