# Base stage for all Python services
FROM python:3.11-slim AS base

# Set working directory
WORKDIR /app

# Install common system dependencies for MySQL
RUN apt-get update && apt-get install -y \
    gcc \
    default-libmysqlclient-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy and install unified requirements
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

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


# --- API Gateway Service Stage ---
FROM base AS api_gateway

# Copy shared module
COPY shared/ ./shared/

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

# Switch to non-root user
USER appuser

# 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 application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]


# --- Auth Service Stage ---
FROM base AS auth_service

# Copy shared module
COPY shared/ ./shared/

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

# Switch to non-root user
USER appuser

# 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 application
CMD ["python", "-m", "app.main"]


# --- Task Scheduler Service Stage ---
FROM base AS task_scheduler

# Copy shared module
COPY shared/ ./shared/

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

# Switch to non-root user
USER appuser

# Start Celery Beat scheduler
CMD ["celery", "-A", "app.celery_app", "beat", "--loglevel=info"]


# --- Sign-in Executor Service Stage ---
FROM base AS signin_executor

# Copy shared module
COPY shared/ ./shared/

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

# Switch to non-root user
USER appuser

# 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 application
CMD ["python", "-m", "app.main"]