# Use specific version instead of 'latest' for reproducible builds
FROM tiangolo/uvicorn-gunicorn-fastapi:python3.11-slim

# Set environment variables for Python optimization
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONPATH=/app
ENV PIP_NO_CACHE_DIR=1
ENV PIP_DISABLE_PIP_VERSION_CHECK=1

# Create non-root user for security
RUN groupadd -r sba && useradd -r -g sba sba

# Set working directory
WORKDIR /usr/src/app

# Install system dependencies in a single layer
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libpq-dev \
    curl \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

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

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

# Copy application code
COPY ./app /app/app

# Create necessary directories and set permissions
RUN mkdir -p /usr/src/app/storage /usr/src/app/logs && \
    chown -R sba:sba /usr/src/app && \
    chmod -R 755 /usr/src/app

# Health check for container monitoring
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:80/api/v3/current || exit 1

# Switch to non-root user
USER sba

# Expose port
EXPOSE 80

# Add labels for metadata
LABEL maintainer="SBA League Management"
LABEL version="1.0"
LABEL description="Major Domo Database API"