# Multi-stage build for production
FROM python:alpine AS base

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONHASHSEED=random \
    PIP_NO_CACHE_DIR=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1

# Install system dependencies
# Use apk for Alpine Linux instead of apt-get
RUN apk add --no-cache \
    gcc \
    build-base \
    postgresql-dev \
    curl

# Create non-root user (Alpine Linux style)
RUN addgroup -g 1001 -S appuser && \
    adduser -u 1001 -S appuser -G appuser

# Development stage
FROM base AS development
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY . .
RUN chown -R appuser:appuser /app
USER appuser
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]

# Production stage
FROM base AS production
WORKDIR /app

# Install production dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create necessary directories and set permissions
RUN mkdir -p /app/logs && \
    chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# Expose port
EXPOSE 8000

# Production command with optimizations
CMD ["uvicorn", "app.main:app", \
    "--host", "0.0.0.0", \
    "--port", "8000", \
    "--workers", "8", \
    "--access-log", \
    "--log-level", "info"]