# Dockerfile for Project Defrag with PostgreSQL integration
FROM python:3.11-slim

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

# Set working directory
WORKDIR /app

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

# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create non-root user
RUN useradd -m -u 1000 appuser && \
    chown -R appuser:appuser /app
USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD python -c "import psycopg2; psycopg2.connect(dbname='${POSTGRES_DB:-disk_reorganizer_db}', user='${POSTGRES_USER:-disk_reorg_user}', password='${POSTGRES_PASSWORD}', host='${DB_HOST:-db}', port='${DB_PORT:-5432}')" || exit 1

# Default command (can be overridden in docker-compose)
CMD ["python", "main.py", "--help"]