# Delphi Consulting Group Database System - Docker Configuration
# Allow overriding the base image via build-arg to use mirrors if Docker Hub is flaky
ARG BASE_IMAGE=python:3.12-slim
FROM ${BASE_IMAGE}

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app \
    PORT=8000

# Set work directory
WORKDIR /app

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        gcc \
        g++ \
        curl \
        sqlite3 \
    && rm -rf /var/lib/apt/lists/*

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

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

# Create non-root user for security
RUN addgroup --system --gid 1001 delphi \
    && adduser --system --uid 1001 --gid 1001 --no-create-home delphi

# Copy application code
COPY --chown=delphi:delphi . .

# Create necessary directories with proper permissions
RUN mkdir -p /app/data /app/uploads /app/backups /app/exports /app/logs \
    && chown -R delphi:delphi /app/data /app/uploads /app/backups /app/exports /app/logs

# Create volume mount points
VOLUME ["/app/data", "/app/uploads", "/app/backups"]

# Switch to non-root user
USER delphi

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# Start command
CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]