# Use Python 3.11 slim image
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    libpq-dev \
    curl \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN groupadd -r botuser && useradd -r -g botuser botuser

# Copy requirements first for better caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
    pip install --no-cache-dir -r requirements.txt --prefer-binary

# Copy application code
COPY . .

# Create necessary directories
RUN mkdir -p /app/logs /app/data && \
    chown -R botuser:botuser /app

# Switch to non-root user
USER botuser

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD python -c "import asyncio; import sys; sys.exit(0)"

# Default command
CMD ["python3", "main.py"]