FROM python:3.9-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first to leverage Docker cache
COPY requirements.txt .

# Install Python dependencies
RUN pip3 install -r requirements.txt

# Download NLTK data
RUN python3 -c "import nltk; nltk.download('stopwords'); nltk.download('wordnet'); nltk.download('omw-1.4')"

# Copy the application
COPY . .

# Create necessary directories
RUN mkdir -p models artifacts

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK CMD curl --fail http://localhost:7860/_stcore/health

# Run the application
ENTRYPOINT ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]